- kernel kvm module build disabled, it is provided by kvm.spec

[packages/kernel.git] / linux-2.6-vs2.3.patch

diff -NurpP --minimal linux-2.6.22.10/Documentation/vserver/debug.txt linux-2.6.22.10-vs2.3.0.29/Documentation/vserver/debug.txt
--- linux-2.6.22.10/Documentation/vserver/debug.txt     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/Documentation/vserver/debug.txt  2007-08-05 20:53:12 +0200
@@ -0,0 +1,154 @@
+
+debug_cvirt:
+
+ 2   4 "vx_map_tgid: %p/%llx: %d -> %d"
+       "vx_rmap_tgid: %p/%llx: %d -> %d"
+
+debug_dlim:
+
+ 0   1 "ALLOC (%p,#%d)%c inode (%d)"
+       "FREE  (%p,#%d)%c inode"
+ 1   2 "ALLOC (%p,#%d)%c %lld bytes (%d)"
+       "FREE  (%p,#%d)%c %lld bytes"
+ 2   4 "ADJUST: %lld,%lld on %ld,%ld [mult=%d]"
+ 3   8 "ext3_has_free_blocks(%p): %lu<%lu+1, %c, %u!=%u r=%d"
+       "ext3_has_free_blocks(%p): free=%lu, root=%lu"
+       "rcu_free_dl_info(%p)"
+ 4  10 "alloc_dl_info(%p,%d) = %p"
+       "dealloc_dl_info(%p)"
+       "get_dl_info(%p[#%d.%d])"
+       "put_dl_info(%p[#%d.%d])"
+ 5  20 "alloc_dl_info(%p,%d)*"
+ 6  40 "__hash_dl_info: %p[#%d]"
+       "__unhash_dl_info: %p[#%d]"
+ 7  80 "locate_dl_info(%p,#%d) = %p"
+
+debug_misc:
+
+ 0   1 "destroy_dqhash: %p [#0x%08x] c=%d"
+       "new_dqhash: %p [#0x%08x]"
+       "vroot[%d]_clr_dev: dev=%p[%lu,%d:%d]"
+       "vroot[%d]_get_real_bdev: dev=%p[%lu,%d:%d]"
+       "vroot[%d]_set_dev: dev=%p[%lu,%d:%d]"
+       "vroot_get_real_bdev not set"
+ 1   2 "cow_break_link(»%s«)"
+       "temp copy »%s«"
+ 2   4 "dentry_open(new): %p"
+       "dentry_open(old): %p"
+       "lookup_create(new): %p"
+       "old path »%s«"
+       "path_lookup(old): %d"
+       "vfs_create(new): %d"
+       "vfs_rename: %d"
+       "vfs_sendfile: %d"
+ 3   8 "fput(new_file=%p[#%d])"
+       "fput(old_file=%p[#%d])"
+ 4  10 "vx_info_kill(%p[#%d],%d,%d) = %d"
+       "vx_info_kill(%p[#%d],%d,%d)*"
+ 5  20 "vs_reboot(%p[#%d],%d)"
+ 6  40 "dropping task %p[#%u,%u] for %p[#%u,%u]"
+
+debug_net:
+
+ 2   4 "nx_addr_conflict(%p,%p) %d.%d,%d.%d"
+ 3   8 "inet_bind(%p) %d.%d.%d.%d, %d.%d.%d.%d, %d.%d.%d.%d"
+       "inet_bind(%p)* %p,%p;%lx %d.%d.%d.%d"
+ 4  10 "ip_route_connect(%p) %p,%p;%lx"
+ 5  20 "__addr_in_socket(%p,%d.%d.%d.%d) %p:%d.%d.%d.%d %p;%lx"
+ 6  40 "sk,egf: %p [#%d] (from %d)"
+       "sk,egn: %p [#%d] (from %d)"
+       "sk,req: %p [#%d] (from %d)"
+       "sk: %p [#%d] (from %d)"
+       "tw: %p [#%d] (from %d)"
+ 7  80 "__sock_recvmsg: %p[%p,%p,%p;%d]:%d/%d"
+       "__sock_sendmsg: %p[%p,%p,%p;%d]:%d/%d"
+
+debug_nid:
+
+ 0   1 "__lookup_nx_info(#%u): %p[#%u]"
+       "alloc_nx_info(%d) = %p"
+       "create_nx_info(%d) (dynamic rejected)"
+       "create_nx_info(%d) = %p (already there)"
+       "create_nx_info(%d) = %p (new)"
+       "dealloc_nx_info(%p)"
+ 1   2 "alloc_nx_info(%d)*"
+       "create_nx_info(%d)*"
+ 2   4 "get_nx_info(%p[#%d.%d])"
+       "put_nx_info(%p[#%d.%d])"
+ 3   8 "claim_nx_info(%p[#%d.%d.%d]) %p"
+       "clr_nx_info(%p[#%d.%d])"
+       "init_nx_info(%p[#%d.%d])"
+       "release_nx_info(%p[#%d.%d.%d]) %p"
+       "set_nx_info(%p[#%d.%d])"
+ 4  10 "__hash_nx_info: %p[#%d]"
+       "__nx_dynamic_id: [#%d]"
+       "__unhash_nx_info: %p[#%d.%d.%d]"
+ 5  20 "moved task %p into nxi:%p[#%d]"
+       "nx_migrate_task(%p,%p[#%d.%d.%d])"
+       "task_get_nx_info(%p)"
+ 6  40 "nx_clear_persistent(%p[#%d])"
+
+debug_quota:
+
+ 0   1 "quota_sync_dqh(%p,%d) discard inode %p"
+ 1   2 "quota_sync_dqh(%p,%d)"
+       "sync_dquots(%p,%d)"
+       "sync_dquots_dqh(%p,%d)"
+ 3   8 "do_quotactl(%p,%d,cmd=%d,id=%d,%p)"
+
+debug_switch:
+
+ 0   1 "vc: VCMD_%02d_%d[%d], %d,%p [%d,%d,%x,%x]"
+ 1   2 "vc: VCMD_%02d_%d[%d] = %08lx(%ld) [%d,%d]"
+ 4  10 "%s: (%s %s) returned %s with %d"
+
+debug_tag:
+
+ 7  80 "dx_parse_tag(»%s«): %d:#%d"
+       "dx_propagate_tag(%p[#%lu.%d]): %d,%d"
+
+debug_xid:
+
+ 0   1 "__lookup_vx_info(#%u): %p[#%u]"
+       "alloc_vx_info(%d) = %p"
+       "alloc_vx_info(%d)*"
+       "create_vx_info(%d) (dynamic rejected)"
+       "create_vx_info(%d) = %p (already there)"
+       "create_vx_info(%d) = %p (new)"
+       "dealloc_vx_info(%p)"
+       "loc_vx_info(%d) = %p (found)"
+       "loc_vx_info(%d) = %p (new)"
+       "loc_vx_info(%d) = %p (not available)"
+ 1   2 "create_vx_info(%d)*"
+       "loc_vx_info(%d)*"
+ 2   4 "get_vx_info(%p[#%d.%d])"
+       "put_vx_info(%p[#%d.%d])"
+ 3   8 "claim_vx_info(%p[#%d.%d.%d]) %p"
+       "clr_vx_info(%p[#%d.%d])"
+       "init_vx_info(%p[#%d.%d])"
+       "release_vx_info(%p[#%d.%d.%d]) %p"
+       "set_vx_info(%p[#%d.%d])"
+ 4  10 "__hash_vx_info: %p[#%d]"
+       "__unhash_vx_info: %p[#%d.%d.%d]"
+       "__vx_dynamic_id: [#%d]"
+ 5  20 "enter_vx_info(%p[#%d],%p) %p[#%d,%p]"
+       "leave_vx_info(%p[#%d,%p]) %p[#%d,%p]"
+       "moved task %p into vxi:%p[#%d]"
+       "task_get_vx_info(%p)"
+       "vx_migrate_task(%p,%p[#%d.%d])"
+ 6  40 "vx_clear_persistent(%p[#%d])"
+       "vx_exit_init(%p[#%d],%p[#%d,%d,%d])"
+       "vx_set_init(%p[#%d],%p[#%d,%d,%d])"
+       "vx_set_persistent(%p[#%d])"
+       "vx_set_reaper(%p[#%d],%p[#%d,%d])"
+ 7  80 "vx_child_reaper(%p[#%u,%u]) = %p[#%u,%u]"
+
+
+debug_limit:
+
+ n 2^n "vx_acc_cres[%5d,%s,%2d]: %5d%s"
+       "vx_cres_avail[%5d,%s,%2d]: %5ld > %5d + %5d"
+
+ m 2^m "vx_acc_page[%5d,%s,%2d]: %5d%s"
+       "vx_acc_pages[%5d,%s,%2d]: %5d += %5d"
+       "vx_pages_avail[%5d,%s,%2d]: %5ld > %5d + %5d"
diff -NurpP --minimal linux-2.6.22.10/Makefile linux-2.6.22.10-vs2.3.0.29/Makefile
--- linux-2.6.22.10/Makefile    2007-10-30 01:57:11 +0100
+++ linux-2.6.22.10-vs2.3.0.29/Makefile 2007-10-30 02:41:27 +0100
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 22
-EXTRAVERSION = .15
+EXTRAVERSION = .15-vs2.3.0.29
 NAME = Holy Dancing Manatees, Batman!
 
 # *DOCUMENTATION*
diff -NurpP --minimal linux-2.6.22.10/arch/alpha/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/alpha/Kconfig
--- linux-2.6.22.10/arch/alpha/Kconfig  2007-07-09 13:17:31 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/alpha/Kconfig       2007-08-05 20:53:12 +0200
@@ -662,6 +662,8 @@ config DUMMY_CONSOLE
        depends on VGA_HOSE
        default y
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/alpha/kernel/asm-offsets.c linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/asm-offsets.c
--- linux-2.6.22.10/arch/alpha/kernel/asm-offsets.c     2006-02-15 13:54:10 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/asm-offsets.c  2007-08-05 20:53:12 +0200
@@ -36,6 +36,7 @@ void foo(void)
        DEFINE(PT_PTRACED, PT_PTRACED);
        DEFINE(CLONE_VM, CLONE_VM);
        DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
+       DEFINE(CLONE_KTHREAD, CLONE_KTHREAD);
        DEFINE(SIGCHLD, SIGCHLD);
        BLANK();
 
diff -NurpP --minimal linux-2.6.22.10/arch/alpha/kernel/entry.S linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/entry.S
--- linux-2.6.22.10/arch/alpha/kernel/entry.S   2007-07-09 13:17:31 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/entry.S        2007-08-05 20:53:12 +0200
@@ -643,7 +643,7 @@ kernel_thread:
        stq     $2, 152($sp)            /* HAE */
 
        /* Shuffle FLAGS to the front; add CLONE_VM.  */
-       ldi     $1, CLONE_VM|CLONE_UNTRACED
+       ldi     $1, CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD;
        or      $18, $1, $16
        bsr     $26, sys_clone
 
@@ -872,24 +872,15 @@ sys_getxgid:
        .globl  sys_getxpid
        .ent    sys_getxpid
 sys_getxpid:
+       lda     $sp, -16($sp)
+       stq     $26, 0($sp)
        .prologue 0
-       ldq     $2, TI_TASK($8)
 
-       /* See linux/kernel/timer.c sys_getppid for discussion
-          about this loop.  */
-       ldq     $3, TASK_GROUP_LEADER($2)
-       ldq     $4, TASK_REAL_PARENT($3)
-       ldl     $0, TASK_TGID($2)
-1:     ldl     $1, TASK_TGID($4)
-#ifdef CONFIG_SMP
-       mov     $4, $5
-       mb
-       ldq     $3, TASK_GROUP_LEADER($2)
-       ldq     $4, TASK_REAL_PARENT($3)
-       cmpeq   $4, $5, $5
-       beq     $5, 1b
-#endif
-       stq     $1, 80($sp)
+       lda     $16, 96($sp)
+       jsr     $26, do_getxpid
+       ldq     $26, 0($sp)
+
+       lda     $sp, 16($sp)
        ret
 .end sys_getxpid
 
diff -NurpP --minimal linux-2.6.22.10/arch/alpha/kernel/osf_sys.c linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/osf_sys.c
--- linux-2.6.22.10/arch/alpha/kernel/osf_sys.c 2007-07-09 13:17:31 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/osf_sys.c      2007-08-05 20:53:12 +0200
@@ -883,7 +883,7 @@ osf_gettimeofday(struct timeval32 __user
 {
        if (tv) {
                struct timeval ktv;
-               do_gettimeofday(&ktv);
+               vx_gettimeofday(&ktv);
                if (put_tv32(tv, &ktv))
                        return -EFAULT;
        }
diff -NurpP --minimal linux-2.6.22.10/arch/alpha/kernel/ptrace.c linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/ptrace.c
--- linux-2.6.22.10/arch/alpha/kernel/ptrace.c  2006-04-09 13:49:39 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/ptrace.c       2007-08-05 20:53:12 +0200
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/security.h>
 #include <linux/signal.h>
+#include <linux/vs_base.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -283,6 +284,11 @@ do_sys_ptrace(long request, long pid, lo
                goto out_notsk;
        }
 
+       if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT)) {
+               ret = -EPERM;
+               goto out;
+       }
+
        if (request == PTRACE_ATTACH) {
                ret = ptrace_attach(child);
                goto out;
diff -NurpP --minimal linux-2.6.22.10/arch/alpha/kernel/semaphore.c linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/semaphore.c
--- linux-2.6.22.10/arch/alpha/kernel/semaphore.c       2004-08-14 12:55:32 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/semaphore.c    2007-08-05 20:53:12 +0200
@@ -68,8 +68,8 @@ __down_failed(struct semaphore *sem)
        DECLARE_WAITQUEUE(wait, tsk);
 
 #ifdef CONFIG_DEBUG_SEMAPHORE
-       printk("%s(%d): down failed(%p)\n",
-              tsk->comm, tsk->pid, sem);
+       printk("%s(%d:#%u): down failed(%p)\n",
+              tsk->comm, tsk->pid, tsk->xid, sem);
 #endif
 
        tsk->state = TASK_UNINTERRUPTIBLE;
@@ -97,8 +97,8 @@ __down_failed(struct semaphore *sem)
        wake_up(&sem->wait);
 
 #ifdef CONFIG_DEBUG_SEMAPHORE
-       printk("%s(%d): down acquired(%p)\n",
-              tsk->comm, tsk->pid, sem);
+       printk("%s(%d:#%u): down acquired(%p)\n",
+              tsk->comm, tsk->pid, tsk->xid, sem);
 #endif
 }
 
@@ -110,8 +110,8 @@ __down_failed_interruptible(struct semap
        long ret = 0;
 
 #ifdef CONFIG_DEBUG_SEMAPHORE
-       printk("%s(%d): down failed(%p)\n",
-              tsk->comm, tsk->pid, sem);
+       printk("%s(%d:#%u): down failed(%p)\n",
+              tsk->comm, tsk->pid, tsk->xid, sem);
 #endif
 
        tsk->state = TASK_INTERRUPTIBLE;
diff -NurpP --minimal linux-2.6.22.10/arch/alpha/kernel/systbls.S linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/systbls.S
--- linux-2.6.22.10/arch/alpha/kernel/systbls.S 2007-07-09 13:17:31 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/systbls.S      2007-08-05 20:53:12 +0200
@@ -446,7 +446,7 @@ sys_call_table:
        .quad sys_stat64                        /* 425 */
        .quad sys_lstat64
        .quad sys_fstat64
-       .quad sys_ni_syscall                    /* sys_vserver */
+       .quad sys_vserver                       /* sys_vserver */
        .quad sys_ni_syscall                    /* sys_mbind */
        .quad sys_ni_syscall                    /* sys_get_mempolicy */
        .quad sys_ni_syscall                    /* sys_set_mempolicy */
diff -NurpP --minimal linux-2.6.22.10/arch/alpha/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/traps.c
--- linux-2.6.22.10/arch/alpha/kernel/traps.c   2006-09-20 16:57:57 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/alpha/kernel/traps.c        2007-08-05 20:53:12 +0200
@@ -182,7 +182,8 @@ die_if_kernel(char * str, struct pt_regs
 #ifdef CONFIG_SMP
        printk("CPU %d ", hard_smp_processor_id());
 #endif
-       printk("%s(%d): %s %ld\n", current->comm, current->pid, str, err);
+       printk("%s(%d[#%u]): %s %ld\n", current->comm,
+               current->pid, current->xid, str, err);
        dik_show_regs(regs, r9_15);
        dik_show_trace((unsigned long *)(regs+1));
        dik_show_code((unsigned int *)regs->pc);
diff -NurpP --minimal linux-2.6.22.10/arch/alpha/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/alpha/mm/fault.c
--- linux-2.6.22.10/arch/alpha/mm/fault.c       2007-07-09 13:17:32 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/alpha/mm/fault.c    2007-08-05 20:53:12 +0200
@@ -197,8 +197,8 @@ do_page_fault(unsigned long address, uns
                down_read(&mm->mmap_sem);
                goto survive;
        }
-       printk(KERN_ALERT "VM: killing process %s(%d)\n",
-              current->comm, current->pid);
+       printk(KERN_ALERT "VM: killing process %s(%d:#%u)\n",
+              current->comm, current->pid, current->xid);
        if (!user_mode(regs))
                goto no_context;
        do_exit(SIGKILL);
diff -NurpP --minimal linux-2.6.22.10/arch/arm/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/arm/Kconfig
--- linux-2.6.22.10/arch/arm/Kconfig    2007-07-09 13:17:32 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/arm/Kconfig 2007-08-05 20:53:12 +0200
@@ -1042,6 +1042,8 @@ source "arch/arm/oprofile/Kconfig"
 
 source "arch/arm/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/arm/kernel/calls.S linux-2.6.22.10-vs2.3.0.29/arch/arm/kernel/calls.S
--- linux-2.6.22.10/arch/arm/kernel/calls.S     2007-07-09 13:17:32 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/arm/kernel/calls.S  2007-08-05 20:53:12 +0200
@@ -322,7 +322,7 @@
 /* 310 */      CALL(sys_request_key)
                CALL(sys_keyctl)
                CALL(ABI(sys_semtimedop, sys_oabi_semtimedop))
-/* vserver */  CALL(sys_ni_syscall)
+               CALL(sys_vserver)
                CALL(sys_ioprio_set)
 /* 315 */      CALL(sys_ioprio_get)
                CALL(sys_inotify_init)
diff -NurpP --minimal linux-2.6.22.10/arch/arm/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/arm/kernel/process.c
--- linux-2.6.22.10/arch/arm/kernel/process.c   2007-07-09 13:17:32 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/arm/kernel/process.c        2007-08-05 20:53:12 +0200
@@ -261,7 +261,8 @@ void __show_regs(struct pt_regs *regs)
 void show_regs(struct pt_regs * regs)
 {
        printk("\n");
-       printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
+       printk("Pid: %d[#%u], comm: %20s\n",
+               current->pid, current->xid, current->comm);
        __show_regs(regs);
        __backtrace();
 }
@@ -423,7 +424,8 @@ pid_t kernel_thread(int (*fn)(void *), v
        regs.ARM_pc = (unsigned long)kernel_thread_helper;
        regs.ARM_cpsr = SVC_MODE;
 
-       return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD,
+               0, &regs, 0, NULL, NULL);
 }
 EXPORT_SYMBOL(kernel_thread);
 
diff -NurpP --minimal linux-2.6.22.10/arch/arm/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/arm/kernel/traps.c
--- linux-2.6.22.10/arch/arm/kernel/traps.c     2007-07-09 13:17:32 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/arm/kernel/traps.c  2007-08-05 20:53:12 +0200
@@ -222,8 +222,8 @@ static void __die(const char *str, int e
               str, err, ++die_counter);
        print_modules();
        __show_regs(regs);
-       printk("Process %s (pid: %d, stack limit = 0x%p)\n",
-               tsk->comm, tsk->pid, thread + 1);
+       printk("Process %s (pid: %d:#%u, stack limit = 0x%p)\n",
+               tsk->comm, tsk->pid, tsk->xid, thread + 1);
 
        if (!user_mode(regs) || in_interrupt()) {
                dump_mem("Stack: ", regs->ARM_sp,
diff -NurpP --minimal linux-2.6.22.10/arch/arm/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/arm/mm/fault.c
--- linux-2.6.22.10/arch/arm/mm/fault.c 2007-07-09 13:17:39 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/arm/mm/fault.c      2007-08-05 20:53:12 +0200
@@ -266,7 +266,8 @@ do_page_fault(unsigned long addr, unsign
                 * happened to us that made us unable to handle
                 * the page fault gracefully.
                 */
-               printk("VM: killing process %s\n", tsk->comm);
+               printk("VM: killing process %s(%d:#%u)\n",
+                       tsk->comm, tsk->pid, tsk->xid);
                do_exit(SIGKILL);
                return 0;
 
diff -NurpP --minimal linux-2.6.22.10/arch/arm26/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/arm26/Kconfig
--- linux-2.6.22.10/arch/arm26/Kconfig  2007-07-09 13:17:40 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/arm26/Kconfig       2007-08-05 20:53:12 +0200
@@ -243,6 +243,8 @@ source "drivers/usb/Kconfig"
 
 source "arch/arm26/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/arm26/kernel/calls.S linux-2.6.22.10-vs2.3.0.29/arch/arm26/kernel/calls.S
--- linux-2.6.22.10/arch/arm26/kernel/calls.S   2005-03-02 12:38:19 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/arm26/kernel/calls.S        2007-08-05 20:53:12 +0200
@@ -257,6 +257,11 @@ __syscall_start:
                .long   sys_lremovexattr
                .long   sys_fremovexattr
                .long   sys_tkill
+
+               .rept   313 - (. - __syscall_start) / 4
+                       .long   sys_ni_syscall
+               .endr
+               .long   sys_vserver     /* 313 */
 __syscall_end:
 
                .rept   NR_syscalls - (__syscall_end - __syscall_start) / 4
diff -NurpP --minimal linux-2.6.22.10/arch/arm26/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/arm26/kernel/process.c
--- linux-2.6.22.10/arch/arm26/kernel/process.c 2006-09-20 16:57:57 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/arm26/kernel/process.c      2007-08-05 20:53:12 +0200
@@ -365,7 +365,8 @@ pid_t kernel_thread(int (*fn)(void *), v
         regs.ARM_r3 = (unsigned long)do_exit;
         regs.ARM_pc = (unsigned long)kernel_thread_helper | MODE_SVC26;
 
-        return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD,
+               0, &regs, 0, NULL, NULL);
 }
 EXPORT_SYMBOL(kernel_thread);
 
diff -NurpP --minimal linux-2.6.22.10/arch/arm26/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/arm26/kernel/traps.c
--- linux-2.6.22.10/arch/arm26/kernel/traps.c   2006-09-20 16:57:57 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/arm26/kernel/traps.c        2007-08-05 20:53:12 +0200
@@ -185,8 +185,9 @@ NORET_TYPE void die(const char *str, str
        printk("Internal error: %s: %x\n", str, err);
        printk("CPU: %d\n", smp_processor_id());
        show_regs(regs);
-       printk("Process %s (pid: %d, stack limit = 0x%p)\n",
-               current->comm, current->pid, end_of_stack(tsk));
+       printk("Process %s (pid: %d[#%u], stack limit = 0x%p)\n",
+               current->comm, current->pid,
+               current->xid, end_of_stack(tsk));
 
        if (!user_mode(regs) || in_interrupt()) {
                __dump_stack(tsk, (unsigned long)(regs + 1));
diff -NurpP --minimal linux-2.6.22.10/arch/cris/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/cris/Kconfig
--- linux-2.6.22.10/arch/cris/Kconfig   2007-05-02 19:24:19 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/cris/Kconfig        2007-08-05 20:53:12 +0200
@@ -200,6 +200,8 @@ source "drivers/usb/Kconfig"
 
 source "arch/cris/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/cris/arch-v10/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/cris/arch-v10/kernel/process.c
--- linux-2.6.22.10/arch/cris/arch-v10/kernel/process.c 2006-09-20 16:57:57 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/cris/arch-v10/kernel/process.c      2007-08-05 20:53:12 +0200
@@ -103,7 +103,8 @@ int kernel_thread(int (*fn)(void *), voi
        regs.dccr = 1 << I_DCCR_BITNR;
 
        /* Ok, create the new process.. */
-        return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD,
+               0, &regs, 0, NULL, NULL);
 }
 
 /* setup the child's kernel stack with a pt_regs and switch_stack on it.
diff -NurpP --minimal linux-2.6.22.10/arch/cris/arch-v32/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/cris/arch-v32/kernel/process.c
--- linux-2.6.22.10/arch/cris/arch-v32/kernel/process.c 2006-09-20 16:57:57 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/cris/arch-v32/kernel/process.c      2007-08-05 20:53:12 +0200
@@ -120,7 +120,8 @@ kernel_thread(int (*fn)(void *), void * 
        regs.ccs = 1 << (I_CCS_BITNR + CCS_SHIFT);
 
        /* Create the new process. */
-        return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD,
+               0, &regs, 0, NULL, NULL);
 }
 
 /*
diff -NurpP --minimal linux-2.6.22.10/arch/frv/kernel/kernel_thread.S linux-2.6.22.10-vs2.3.0.29/arch/frv/kernel/kernel_thread.S
--- linux-2.6.22.10/arch/frv/kernel/kernel_thread.S     2005-03-02 12:38:20 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/frv/kernel/kernel_thread.S  2007-08-05 20:53:12 +0200
@@ -13,6 +13,8 @@
 #include <asm/unistd.h>
 
 #define CLONE_VM       0x00000100      /* set if VM shared between processes */
+#define CLONE_KTHREAD  0x10000000      /* kernel thread */
+#define CLONE_KT       (CLONE_VM | CLONE_KTHREAD)      /* kernel thread flags */
 #define        KERN_ERR        "<3>"
 
        .section .rodata
@@ -37,7 +39,7 @@ kernel_thread:
 
        # start by forking the current process, but with shared VM
        setlos.p        #__NR_clone,gr7         ; syscall number
-       ori             gr10,#CLONE_VM,gr8      ; first syscall arg     [clone_flags]
+       ori             gr10,#CLONE_KT,gr8      ; first syscall arg     [clone_flags]
        sethi.p         #0xe4e4,gr9             ; second syscall arg    [newsp]
        setlo           #0xe4e4,gr9
        setlos.p        #0,gr10                 ; third syscall arg     [parent_tidptr]
diff -NurpP --minimal linux-2.6.22.10/arch/h8300/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/h8300/Kconfig
--- linux-2.6.22.10/arch/h8300/Kconfig  2007-07-09 13:17:41 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/h8300/Kconfig       2007-08-05 20:53:12 +0200
@@ -222,6 +222,8 @@ source "fs/Kconfig"
 
 source "arch/h8300/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/h8300/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/h8300/kernel/process.c
--- linux-2.6.22.10/arch/h8300/kernel/process.c 2006-09-20 16:57:58 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/h8300/kernel/process.c      2007-08-05 20:53:12 +0200
@@ -134,7 +134,7 @@ int kernel_thread(int (*fn)(void *), voi
 
        fs = get_fs();
        set_fs (KERNEL_DS);
-       clone_arg = flags | CLONE_VM;
+       clone_arg = flags | CLONE_VM | CLONE_KTHREAD;
        __asm__("mov.l sp,er3\n\t"
                "sub.l er2,er2\n\t"
                "mov.l %2,er1\n\t"
diff -NurpP --minimal linux-2.6.22.10/arch/i386/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/i386/Kconfig
--- linux-2.6.22.10/arch/i386/Kconfig   2007-07-09 13:17:41 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/i386/Kconfig        2007-08-05 20:53:12 +0200
@@ -1230,6 +1230,8 @@ endmenu
 
 source "arch/i386/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/i386/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/i386/kernel/process.c
--- linux-2.6.22.10/arch/i386/kernel/process.c  2007-07-09 13:17:42 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/i386/kernel/process.c       2007-08-05 20:53:12 +0200
@@ -302,8 +302,10 @@ void show_regs(struct pt_regs * regs)
        unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
 
        printk("\n");
-       printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
-       printk("EIP: %04x:[<%08lx>] CPU: %d\n",0xffff & regs->xcs,regs->eip, smp_processor_id());
+       printk("Pid: %d[#%u], comm: %20s\n",
+               current->pid, current->xid, current->comm);
+       printk("EIP: %04x:[<%08lx>] CPU: %d\n",
+               0xffff & regs->xcs,regs->eip, smp_processor_id());
        print_symbol("EIP is at %s\n", regs->eip);
 
        if (user_mode_vm(regs))
@@ -355,7 +357,8 @@ int kernel_thread(int (*fn)(void *), voi
        regs.eflags = X86_EFLAGS_IF | X86_EFLAGS_SF | X86_EFLAGS_PF | 0x2;
 
        /* Ok, create the new process.. */
-       return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD,
+               0, &regs, 0, NULL, NULL);
 }
 EXPORT_SYMBOL(kernel_thread);
 
diff -NurpP --minimal linux-2.6.22.10/arch/i386/kernel/syscall_table.S linux-2.6.22.10-vs2.3.0.29/arch/i386/kernel/syscall_table.S
--- linux-2.6.22.10/arch/i386/kernel/syscall_table.S    2007-07-09 13:17:42 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/i386/kernel/syscall_table.S 2007-08-05 20:53:12 +0200
@@ -272,7 +272,7 @@ ENTRY(sys_call_table)
        .long sys_tgkill        /* 270 */
        .long sys_utimes
        .long sys_fadvise64_64
-       .long sys_ni_syscall    /* sys_vserver */
+       .long sys_vserver
        .long sys_mbind
        .long sys_get_mempolicy
        .long sys_set_mempolicy
diff -NurpP --minimal linux-2.6.22.10/arch/i386/kernel/sysenter.c linux-2.6.22.10-vs2.3.0.29/arch/i386/kernel/sysenter.c
--- linux-2.6.22.10/arch/i386/kernel/sysenter.c 2007-10-30 01:57:12 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/i386/kernel/sysenter.c      2007-09-05 03:06:10 +0200
@@ -17,6 +17,7 @@
 #include <linux/elf.h>
 #include <linux/mm.h>
 #include <linux/module.h>
+#include <linux/vs_memory.h>
 
 #include <asm/cpufeature.h>
 #include <asm/msr.h>
diff -NurpP --minimal linux-2.6.22.10/arch/i386/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/i386/kernel/traps.c
--- linux-2.6.22.10/arch/i386/kernel/traps.c    2007-07-09 13:17:42 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/i386/kernel/traps.c 2007-08-05 20:53:12 +0200
@@ -56,6 +56,8 @@
 #include <asm/stacktrace.h>
 
 #include <linux/module.h>
+#include <linux/vs_context.h>
+#include <linux/vserver/history.h>
 
 #include "mach_traps.h"
 
@@ -303,8 +305,8 @@ void show_registers(struct pt_regs *regs
                regs->esi, regs->edi, regs->ebp, esp);
        printk(KERN_EMERG "ds: %04x   es: %04x   fs: %04x  gs: %04x  ss: %04x\n",
               regs->xds & 0xffff, regs->xes & 0xffff, regs->xfs & 0xffff, gs, ss);
-       printk(KERN_EMERG "Process %.*s (pid: %d, ti=%p task=%p task.ti=%p)",
-               TASK_COMM_LEN, current->comm, current->pid,
+       printk(KERN_EMERG "Process %.*s (pid: %d[#%u], ti=%p task=%p task.ti=%p)",
+               TASK_COMM_LEN, current->comm, current->pid, current->xid,
                current_thread_info(), current, task_thread_info(current));
        /*
         * When in-kernel, we also print out the stack and code at the
@@ -375,6 +377,8 @@ void die(const char * str, struct pt_reg
 
        oops_enter();
 
+       vxh_throw_oops();
+
        if (die.lock_owner != raw_smp_processor_id()) {
                console_verbose();
                spin_lock_irqsave(&die.lock, flags);
@@ -412,9 +416,9 @@ void die(const char * str, struct pt_reg
                if (nl)
                        printk("\n");
                if (notify_die(DIE_OOPS, str, regs, err,
-                                       current->thread.trap_no, SIGSEGV) !=
-                               NOTIFY_STOP) {
+                       current->thread.trap_no, SIGSEGV) != NOTIFY_STOP) {
                        show_registers(regs);
+                       vxh_dump_history();
                        /* Executive summary in case the oops scrolled away */
                        esp = (unsigned long) (&regs->esp);
                        savesegment(ss, ss);
diff -NurpP --minimal linux-2.6.22.10/arch/i386/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/i386/mm/fault.c
--- linux-2.6.22.10/arch/i386/mm/fault.c        2007-10-30 01:57:12 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/i386/mm/fault.c     2007-09-05 03:06:10 +0200
@@ -587,7 +587,8 @@ out_of_memory:
                down_read(&mm->mmap_sem);
                goto survive;
        }
-       printk("VM: killing process %s\n", tsk->comm);
+       printk("VM: killing process %s(%d:#%u)\n",
+               tsk->comm, tsk->pid, tsk->xid);
        if (error_code & 4)
                do_exit(SIGKILL);
        goto no_context;
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/ia64/Kconfig
--- linux-2.6.22.10/arch/ia64/Kconfig   2007-07-09 13:17:43 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/Kconfig        2007-08-05 20:53:12 +0200
@@ -592,6 +592,8 @@ endmenu
 
 source "arch/ia64/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/ia32/binfmt_elf32.c linux-2.6.22.10-vs2.3.0.29/arch/ia64/ia32/binfmt_elf32.c
--- linux-2.6.22.10/arch/ia64/ia32/binfmt_elf32.c       2007-05-02 19:24:20 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/ia32/binfmt_elf32.c    2007-08-05 20:53:12 +0200
@@ -233,7 +233,8 @@ ia32_setup_arg_pages (struct linux_binpr
                        kmem_cache_free(vm_area_cachep, mpnt);
                        return ret;
                }
-               current->mm->stack_vm = current->mm->total_vm = vma_pages(mpnt);
+               vx_vmpages_sub(current->mm, current->mm->total_vm - vma_pages(mpnt));
+               current->mm->stack_vm = current->mm->total_vm;
        }
 
        for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/ia32/ia32_entry.S linux-2.6.22.10-vs2.3.0.29/arch/ia64/ia32/ia32_entry.S
--- linux-2.6.22.10/arch/ia64/ia32/ia32_entry.S 2007-07-09 13:17:43 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/ia32/ia32_entry.S      2007-08-05 20:53:12 +0200
@@ -446,7 +446,7 @@ ia32_syscall_table:
        data8 sys_tgkill        /* 270 */
        data8 compat_sys_utimes
        data8 sys32_fadvise64_64
-       data8 sys_ni_syscall
+       data8 sys32_vserver
        data8 sys_ni_syscall
        data8 sys_ni_syscall    /* 275 */
        data8 sys_ni_syscall
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/ia32/sys_ia32.c linux-2.6.22.10-vs2.3.0.29/arch/ia64/ia32/sys_ia32.c
--- linux-2.6.22.10/arch/ia64/ia32/sys_ia32.c   2007-05-02 19:24:20 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/ia32/sys_ia32.c        2007-08-05 20:53:12 +0200
@@ -1182,7 +1182,7 @@ sys32_gettimeofday (struct compat_timeva
 {
        if (tv) {
                struct timeval ktv;
-               do_gettimeofday(&ktv);
+               vx_gettimeofday(&ktv);
                if (put_tv32(tv, &ktv))
                        return -EFAULT;
        }
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/kernel/asm-offsets.c linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/asm-offsets.c
--- linux-2.6.22.10/arch/ia64/kernel/asm-offsets.c      2007-05-02 19:24:20 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/asm-offsets.c   2007-08-05 20:53:12 +0200
@@ -192,6 +192,7 @@ void foo(void)
     /* for assembly files which can't include sched.h: */
        DEFINE(IA64_CLONE_VFORK, CLONE_VFORK);
        DEFINE(IA64_CLONE_VM, CLONE_VM);
+       DEFINE(IA64_CLONE_KTHREAD, CLONE_KTHREAD);
 
        BLANK();
        DEFINE(IA64_CPUINFO_NSEC_PER_CYC_OFFSET,
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/kernel/entry.S linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/entry.S
--- linux-2.6.22.10/arch/ia64/kernel/entry.S    2007-07-09 13:17:43 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/entry.S 2007-08-05 20:53:12 +0200
@@ -1547,7 +1547,7 @@ sys_call_table:
        data8 sys_mq_notify
        data8 sys_mq_getsetattr
        data8 sys_kexec_load
-       data8 sys_ni_syscall                    // reserved for vserver
+       data8 sys_vserver
        data8 sys_waitid                        // 1270
        data8 sys_add_key
        data8 sys_request_key
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/kernel/perfmon.c linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/perfmon.c
--- linux-2.6.22.10/arch/ia64/kernel/perfmon.c  2007-07-09 13:17:43 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/perfmon.c       2007-08-05 20:53:12 +0200
@@ -40,6 +40,7 @@
 #include <linux/capability.h>
 #include <linux/rcupdate.h>
 #include <linux/completion.h>
+#include <linux/vs_memory.h>
 
 #include <asm/errno.h>
 #include <asm/intrinsics.h>
@@ -2395,7 +2396,7 @@ pfm_smpl_buffer_alloc(struct task_struct
         */
        insert_vm_struct(mm, vma);
 
-       mm->total_vm  += size >> PAGE_SHIFT;
+       vx_vmpages_add(mm, size >> PAGE_SHIFT);
        vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file,
                                                        vma_pages(vma));
        up_write(&task->mm->mmap_sem);
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/process.c
--- linux-2.6.22.10/arch/ia64/kernel/process.c  2007-07-09 13:17:43 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/process.c       2007-08-05 20:53:12 +0200
@@ -105,7 +105,8 @@ show_regs (struct pt_regs *regs)
        unsigned long ip = regs->cr_iip + ia64_psr(regs)->ri;
 
        print_modules();
-       printk("\nPid: %d, CPU %d, comm: %20s\n", current->pid, smp_processor_id(), current->comm);
+       printk("\nPid: %d[#%u], CPU %d, comm: %20s\n",
+               current->pid, current->xid, smp_processor_id(), current->comm);
        printk("psr : %016lx ifs : %016lx ip  : [<%016lx>]    %s\n",
               regs->cr_ipsr, regs->cr_ifs, ip, print_tainted());
        print_symbol("ip is at %s\n", ip);
@@ -696,7 +697,8 @@ kernel_thread (int (*fn)(void *), void *
        regs.sw.ar_fpsr = regs.pt.ar_fpsr = ia64_getreg(_IA64_REG_AR_FPSR);
        regs.sw.ar_bspstore = (unsigned long) current + IA64_RBS_OFFSET;
        regs.sw.pr = (1 << PRED_KERNEL_STACK);
-       return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs.pt, 0, NULL, NULL);
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD,
+               0, &regs.pt, 0, NULL, NULL);
 }
 EXPORT_SYMBOL(kernel_thread);
 
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/kernel/ptrace.c linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/ptrace.c
--- linux-2.6.22.10/arch/ia64/kernel/ptrace.c   2007-05-02 19:24:20 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/ptrace.c        2007-08-05 20:53:12 +0200
@@ -17,6 +17,7 @@
 #include <linux/security.h>
 #include <linux/audit.h>
 #include <linux/signal.h>
+#include <linux/vs_base.h>
 
 #include <asm/pgtable.h>
 #include <asm/processor.h>
@@ -1443,6 +1444,9 @@ sys_ptrace (long request, pid_t pid, uns
        read_unlock(&tasklist_lock);
        if (!child)
                goto out;
+       if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT))
+               goto out_tsk;
+
        ret = -EPERM;
        if (pid == 1)           /* no messing around with init! */
                goto out_tsk;
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/traps.c
--- linux-2.6.22.10/arch/ia64/kernel/traps.c    2007-07-09 13:17:43 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/kernel/traps.c 2007-08-05 20:53:12 +0200
@@ -60,8 +60,9 @@ die (const char *str, struct pt_regs *re
        put_cpu();
 
        if (++die.lock_owner_depth < 3) {
-               printk("%s[%d]: %s %ld [%d]\n",
-                       current->comm, current->pid, str, err, ++die_counter);
+               printk("%s[%d[#%u]]: %s %ld [%d]\n",
+                       current->comm, current->pid, current->xid,
+                       str, err, ++die_counter);
                (void) notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV);
                show_regs(regs);
        } else
@@ -313,8 +314,9 @@ handle_fpu_swa (int fp_fault, struct pt_
                        if ((last.count & 15) < 5 && (ia64_fetchadd(1, &last.count, acq) & 15) < 5) {
                                last.time = current_jiffies + 5 * HZ;
                                printk(KERN_WARNING
-                                       "%s(%d): floating-point assist fault at ip %016lx, isr %016lx\n",
-                                       current->comm, current->pid, regs->cr_iip + ia64_psr(regs)->ri, isr);
+                                       "%s(%d[#%u]): floating-point assist fault at ip %016lx, isr %016lx\n",
+                                       current->comm, current->pid, current->xid,
+                                       regs->cr_iip + ia64_psr(regs)->ri, isr);
                        }
                }
        }
diff -NurpP --minimal linux-2.6.22.10/arch/ia64/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/ia64/mm/fault.c
--- linux-2.6.22.10/arch/ia64/mm/fault.c        2007-07-09 13:17:43 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ia64/mm/fault.c     2007-08-05 20:53:12 +0200
@@ -10,6 +10,7 @@
 #include <linux/interrupt.h>
 #include <linux/kprobes.h>
 #include <linux/kdebug.h>
+#include <linux/vs_memory.h>
 
 #include <asm/pgtable.h>
 #include <asm/processor.h>
diff -NurpP --minimal linux-2.6.22.10/arch/m32r/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/m32r/kernel/process.c
--- linux-2.6.22.10/arch/m32r/kernel/process.c  2007-05-02 19:24:21 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/m32r/kernel/process.c       2007-08-05 20:53:12 +0200
@@ -211,8 +211,8 @@ int kernel_thread(int (*fn)(void *), voi
        regs.psw = M32R_PSW_BIE;
 
        /* Ok, create the new process. */
-       return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL,
-               NULL);
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD,
+               0, &regs, 0, NULL, NULL);
 }
 
 /*
diff -NurpP --minimal linux-2.6.22.10/arch/m32r/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/m32r/kernel/traps.c
--- linux-2.6.22.10/arch/m32r/kernel/traps.c    2006-11-30 21:18:28 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/m32r/kernel/traps.c 2007-08-05 20:53:12 +0200
@@ -195,8 +195,9 @@ static void show_registers(struct pt_reg
        } else {
                printk("SPI: %08lx\n", sp);
        }
-       printk("Process %s (pid: %d, process nr: %d, stackpage=%08lx)",
-               current->comm, current->pid, 0xffff & i, 4096+(unsigned long)current);
+       printk("Process %s (pid: %d[#%u], process nr: %d, stackpage=%08lx)",
+               current->comm, current->pid, current->xid,
+               0xffff & i, 4096+(unsigned long)current);
 
        /*
         * When in-kernel, we also print out the stack and code at the
diff -NurpP --minimal linux-2.6.22.10/arch/m68k/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/m68k/Kconfig
--- linux-2.6.22.10/arch/m68k/Kconfig   2007-07-09 13:17:47 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/m68k/Kconfig        2007-08-05 20:53:12 +0200
@@ -678,6 +678,8 @@ source "fs/Kconfig"
 
 source "arch/m68k/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/m68k/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/m68k/kernel/process.c
--- linux-2.6.22.10/arch/m68k/kernel/process.c  2006-11-30 21:18:28 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/m68k/kernel/process.c       2007-08-05 20:53:12 +0200
@@ -159,7 +159,8 @@ int kernel_thread(int (*fn)(void *), voi
 
        {
        register long retval __asm__ ("d0");
-       register long clone_arg __asm__ ("d1") = flags | CLONE_VM | CLONE_UNTRACED;
+       register long clone_arg __asm__ ("d1") =
+               flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD;
 
        retval = __NR_clone;
        __asm__ __volatile__
diff -NurpP --minimal linux-2.6.22.10/arch/m68k/kernel/ptrace.c linux-2.6.22.10-vs2.3.0.29/arch/m68k/kernel/ptrace.c
--- linux-2.6.22.10/arch/m68k/kernel/ptrace.c   2007-07-09 13:17:47 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/m68k/kernel/ptrace.c        2007-08-05 20:53:12 +0200
@@ -18,6 +18,7 @@
 #include <linux/ptrace.h>
 #include <linux/user.h>
 #include <linux/signal.h>
+#include <linux/vs_base.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
@@ -278,6 +279,8 @@ long arch_ptrace(struct task_struct *chi
                ret = ptrace_request(child, request, addr, data);
                break;
        }
+       if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT))
+               goto out_tsk;
 
        return ret;
 out_eio:
diff -NurpP --minimal linux-2.6.22.10/arch/m68k/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/m68k/kernel/traps.c
--- linux-2.6.22.10/arch/m68k/kernel/traps.c    2007-05-02 19:24:21 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/m68k/kernel/traps.c 2007-08-05 20:53:12 +0200
@@ -899,8 +899,8 @@ void show_registers(struct pt_regs *regs
        printk("d4: %08lx    d5: %08lx    a0: %08lx    a1: %08lx\n",
               regs->d4, regs->d5, regs->a0, regs->a1);
 
-       printk("Process %s (pid: %d, task=%p)\n",
-               current->comm, current->pid, current);
+       printk("Process %s (pid: %d[#%u], task=%p)\n",
+               current->comm, current->pid, current->xid, current);
        addr = (unsigned long)&fp->un;
        printk("Frame format=%X ", regs->format);
        switch (regs->format) {
diff -NurpP --minimal linux-2.6.22.10/arch/m68knommu/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/m68knommu/Kconfig
--- linux-2.6.22.10/arch/m68knommu/Kconfig      2007-07-09 13:17:47 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/m68knommu/Kconfig   2007-08-05 20:53:12 +0200
@@ -670,6 +670,8 @@ source "fs/Kconfig"
 
 source "arch/m68knommu/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/m68knommu/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/m68knommu/kernel/process.c
--- linux-2.6.22.10/arch/m68knommu/kernel/process.c     2007-02-06 03:00:08 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/m68knommu/kernel/process.c  2007-08-05 20:53:12 +0200
@@ -122,7 +122,7 @@ void show_regs(struct pt_regs * regs)
 int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
 {
        int retval;
-       long clone_arg = flags | CLONE_VM;
+       long clone_arg = flags | CLONE_VM | CLONE_KTHREAD;
        mm_segment_t fs;
 
        fs = get_fs();
diff -NurpP --minimal linux-2.6.22.10/arch/m68knommu/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/m68knommu/kernel/traps.c
--- linux-2.6.22.10/arch/m68knommu/kernel/traps.c       2007-05-02 19:24:21 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/m68knommu/kernel/traps.c    2007-08-05 20:53:12 +0200
@@ -80,8 +80,9 @@ void die_if_kernel(char *str, struct pt_
        printk(KERN_EMERG "d4: %08lx    d5: %08lx    a0: %08lx    a1: %08lx\n",
               fp->d4, fp->d5, fp->a0, fp->a1);
 
-       printk(KERN_EMERG "Process %s (pid: %d, stackpage=%08lx)\n",
-               current->comm, current->pid, PAGE_SIZE+(unsigned long)current);
+       printk(KERN_EMERG "Process %s (pid: %d[#%u], stackpage=%08lx)\n",
+               current->comm, current->pid, current->xid,
+               PAGE_SIZE+(unsigned long)current);
        show_stack(NULL, (unsigned long *)fp);
        do_exit(SIGSEGV);
 }
diff -NurpP --minimal linux-2.6.22.10/arch/mips/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/mips/Kconfig
--- linux-2.6.22.10/arch/mips/Kconfig   2007-07-09 13:17:47 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/mips/Kconfig        2007-08-05 20:53:12 +0200
@@ -1959,6 +1959,8 @@ source "arch/mips/oprofile/Kconfig"
 
 source "arch/mips/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/mips/kernel/linux32.c linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/linux32.c
--- linux-2.6.22.10/arch/mips/kernel/linux32.c  2007-07-09 13:17:48 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/linux32.c       2007-08-05 20:53:12 +0200
@@ -229,7 +229,7 @@ sys32_gettimeofday(struct compat_timeval
 {
        if (tv) {
                struct timeval ktv;
-               do_gettimeofday(&ktv);
+               vx_gettimeofday(&ktv);
                if (put_tv32(tv, &ktv))
                        return -EFAULT;
        }
diff -NurpP --minimal linux-2.6.22.10/arch/mips/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/process.c
--- linux-2.6.22.10/arch/mips/kernel/process.c  2007-05-02 19:24:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/process.c       2007-08-05 20:53:12 +0200
@@ -236,7 +236,8 @@ long kernel_thread(int (*fn)(void *), vo
 #endif
 
        /* Ok, create the new process.. */
-       return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD,
+               0, &regs, 0, NULL, NULL);
 }
 
 /*
diff -NurpP --minimal linux-2.6.22.10/arch/mips/kernel/ptrace.c linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/ptrace.c
--- linux-2.6.22.10/arch/mips/kernel/ptrace.c   2007-07-09 13:17:48 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/ptrace.c        2007-08-05 20:53:12 +0200
@@ -25,6 +25,7 @@
 #include <linux/user.h>
 #include <linux/security.h>
 #include <linux/signal.h>
+#include <linux/vs_base.h>
 
 #include <asm/byteorder.h>
 #include <asm/cpu.h>
@@ -171,6 +172,9 @@ long arch_ptrace(struct task_struct *chi
 {
        int ret;
 
+       if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT))
+               goto out;
+
        switch (request) {
        /* when I and D space are separate, these will need to be fixed. */
        case PTRACE_PEEKTEXT: /* read word at location addr. */
diff -NurpP --minimal linux-2.6.22.10/arch/mips/kernel/scall32-o32.S linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/scall32-o32.S
--- linux-2.6.22.10/arch/mips/kernel/scall32-o32.S      2007-07-09 13:17:48 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/scall32-o32.S   2007-08-05 20:53:12 +0200
@@ -619,7 +619,7 @@ einval:     li      v0, -EINVAL
        sys     sys_mq_timedreceive     5
        sys     sys_mq_notify           2       /* 4275 */
        sys     sys_mq_getsetattr       3
-       sys     sys_ni_syscall          0       /* sys_vserver */
+       sys     sys_vserver             3
        sys     sys_waitid              5
        sys     sys_ni_syscall          0       /* available, was setaltroot */
        sys     sys_add_key             5       /* 4280 */
diff -NurpP --minimal linux-2.6.22.10/arch/mips/kernel/scall64-64.S linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/scall64-64.S
--- linux-2.6.22.10/arch/mips/kernel/scall64-64.S       2007-07-09 13:17:48 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/scall64-64.S    2007-08-05 20:53:12 +0200
@@ -434,7 +434,7 @@ sys_call_table:
        PTR     sys_mq_timedreceive
        PTR     sys_mq_notify
        PTR     sys_mq_getsetattr               /* 5235 */
-       PTR     sys_ni_syscall                  /* sys_vserver */
+       PTR     sys_vserver
        PTR     sys_waitid
        PTR     sys_ni_syscall                  /* available, was setaltroot */
        PTR     sys_add_key
diff -NurpP --minimal linux-2.6.22.10/arch/mips/kernel/scall64-n32.S linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/scall64-n32.S
--- linux-2.6.22.10/arch/mips/kernel/scall64-n32.S      2007-07-09 13:17:48 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/scall64-n32.S   2007-08-05 20:53:12 +0200
@@ -360,7 +360,7 @@ EXPORT(sysn32_call_table)
        PTR     compat_sys_mq_timedreceive
        PTR     compat_sys_mq_notify
        PTR     compat_sys_mq_getsetattr
-       PTR     sys_ni_syscall                  /* 6240, sys_vserver */
+       PTR     sys32_vserver                   /* 6240 */
        PTR     compat_sys_waitid
        PTR     sys_ni_syscall                  /* available, was setaltroot */
        PTR     sys_add_key
diff -NurpP --minimal linux-2.6.22.10/arch/mips/kernel/scall64-o32.S linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/scall64-o32.S
--- linux-2.6.22.10/arch/mips/kernel/scall64-o32.S      2007-07-09 13:17:48 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/scall64-o32.S   2007-08-05 20:53:12 +0200
@@ -482,7 +482,7 @@ sys_call_table:
        PTR     compat_sys_mq_timedreceive
        PTR     compat_sys_mq_notify            /* 4275 */
        PTR     compat_sys_mq_getsetattr
-       PTR     sys_ni_syscall                  /* sys_vserver */
+       PTR     sys32_vserver
        PTR     sys32_waitid
        PTR     sys_ni_syscall                  /* available, was setaltroot */
        PTR     sys_add_key                     /* 4280 */
diff -NurpP --minimal linux-2.6.22.10/arch/mips/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/traps.c
--- linux-2.6.22.10/arch/mips/kernel/traps.c    2007-07-09 13:17:48 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/mips/kernel/traps.c 2007-08-05 20:53:12 +0200
@@ -302,8 +302,9 @@ void show_registers(struct pt_regs *regs
 {
        show_regs(regs);
        print_modules();
-       printk("Process %s (pid: %d, threadinfo=%p, task=%p)\n",
-               current->comm, current->pid, current_thread_info(), current);
+       printk("Process %s (pid: %d:#%u, threadinfo=%p, task=%p)\n",
+               current->comm, current->pid, current->xid,
+               current_thread_info(), current);
        show_stacktrace(current, regs);
        show_code((unsigned int *) regs->cp0_epc);
        printk("\n");
diff -NurpP --minimal linux-2.6.22.10/arch/mips/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/mips/mm/fault.c
--- linux-2.6.22.10/arch/mips/mm/fault.c        2007-07-09 13:17:48 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/mips/mm/fault.c     2007-08-05 20:53:12 +0200
@@ -179,7 +179,8 @@ out_of_memory:
                down_read(&mm->mmap_sem);
                goto survive;
        }
-       printk("VM: killing process %s\n", tsk->comm);
+       printk("VM: killing process %s(%d:#%u)\n",
+               tsk->comm, tsk->pid, tsk->xid);
        if (user_mode(regs))
                do_exit(SIGKILL);
        goto no_context;
diff -NurpP --minimal linux-2.6.22.10/arch/parisc/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/parisc/Kconfig
--- linux-2.6.22.10/arch/parisc/Kconfig 2007-05-02 19:24:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/parisc/Kconfig      2007-08-05 20:53:12 +0200
@@ -271,6 +271,8 @@ source "arch/parisc/oprofile/Kconfig"
 
 source "arch/parisc/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/parisc/kernel/entry.S linux-2.6.22.10-vs2.3.0.29/arch/parisc/kernel/entry.S
--- linux-2.6.22.10/arch/parisc/kernel/entry.S  2007-07-09 13:17:50 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/parisc/kernel/entry.S       2007-08-05 20:53:12 +0200
@@ -761,6 +761,7 @@ END(fault_vector_11)
 
 #define CLONE_VM 0x100 /* Must agree with <linux/sched.h> */
 #define CLONE_UNTRACED 0x00800000
+#define CLONE_KTHREAD 0x10000000
 
        .import do_fork
 ENTRY(__kernel_thread)
diff -NurpP --minimal linux-2.6.22.10/arch/parisc/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/parisc/kernel/process.c
--- linux-2.6.22.10/arch/parisc/kernel/process.c        2007-07-09 13:17:50 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/parisc/kernel/process.c     2007-08-05 20:53:12 +0200
@@ -173,7 +173,7 @@ pid_t kernel_thread(int (*fn)(void *), v
         *        kernel_thread can become a #define.
         */
 
-       return __kernel_thread(fn, arg, flags);
+       return __kernel_thread(fn, arg, flags | CLONE_KTHREAD);
 }
 EXPORT_SYMBOL(kernel_thread);
 
diff -NurpP --minimal linux-2.6.22.10/arch/parisc/kernel/sys_parisc32.c linux-2.6.22.10-vs2.3.0.29/arch/parisc/kernel/sys_parisc32.c
--- linux-2.6.22.10/arch/parisc/kernel/sys_parisc32.c   2007-07-09 13:17:50 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/parisc/kernel/sys_parisc32.c        2007-08-05 20:53:12 +0200
@@ -204,11 +204,11 @@ static inline long get_ts32(struct times
 asmlinkage int
 sys32_gettimeofday(struct compat_timeval __user *tv, struct timezone __user *tz)
 {
-    extern void do_gettimeofday(struct timeval *tv);
+    extern void vx_gettimeofday(struct timeval *tv);
 
     if (tv) {
            struct timeval ktv;
-           do_gettimeofday(&ktv);
+           vx_gettimeofday(&ktv);
            if (put_compat_timeval(tv, &ktv))
                    return -EFAULT;
     }
diff -NurpP --minimal linux-2.6.22.10/arch/parisc/kernel/syscall_table.S linux-2.6.22.10-vs2.3.0.29/arch/parisc/kernel/syscall_table.S
--- linux-2.6.22.10/arch/parisc/kernel/syscall_table.S  2007-07-09 13:17:50 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/parisc/kernel/syscall_table.S       2007-08-05 20:53:12 +0200
@@ -363,7 +363,7 @@
        ENTRY_COMP(mbind)               /* 260 */
        ENTRY_COMP(get_mempolicy)
        ENTRY_COMP(set_mempolicy)
-       ENTRY_SAME(ni_syscall)  /* 263: reserved for vserver */
+       ENTRY_DIFF(vserver)
        ENTRY_SAME(add_key)
        ENTRY_SAME(request_key)         /* 265 */
        ENTRY_SAME(keyctl)
diff -NurpP --minimal linux-2.6.22.10/arch/parisc/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/parisc/kernel/traps.c
--- linux-2.6.22.10/arch/parisc/kernel/traps.c  2007-07-09 13:17:50 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/parisc/kernel/traps.c       2007-08-05 20:53:12 +0200
@@ -218,8 +218,9 @@ void die_if_kernel(char *str, struct pt_
                if (err == 0)
                        return; /* STFU */
 
-               printk(KERN_CRIT "%s (pid %d): %s (code %ld) at " RFMT "\n",
-                       current->comm, current->pid, str, err, regs->iaoq[0]);
+               printk(KERN_CRIT "%s (pid %d:#%u): %s (code %ld) at " RFMT "\n",
+                       current->comm, current->pid, current->xid,
+                       str, err, regs->iaoq[0]);
 #ifdef PRINT_USER_FAULTS
                /* XXX for debugging only */
                show_regs(regs);
@@ -251,8 +252,8 @@ KERN_CRIT "                     ||     |
                pdc_console_restart();
        
        if (err)
-               printk(KERN_CRIT "%s (pid %d): %s (code %ld)\n",
-                       current->comm, current->pid, str, err);
+               printk(KERN_CRIT "%s (pid %d:#%u): %s (code %ld)\n",
+                       current->comm, current->pid, current->xid, str, err);
 
        /* Wot's wrong wif bein' racy? */
        if (current->thread.flags & PARISC_KERNEL_DEATH) {
diff -NurpP --minimal linux-2.6.22.10/arch/parisc/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/parisc/mm/fault.c
--- linux-2.6.22.10/arch/parisc/mm/fault.c      2007-05-02 19:24:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/parisc/mm/fault.c   2007-08-05 20:53:12 +0200
@@ -209,8 +209,9 @@ bad_area:
 
 #ifdef PRINT_USER_FAULTS
                printk(KERN_DEBUG "\n");
-               printk(KERN_DEBUG "do_page_fault() pid=%d command='%s' type=%lu address=0x%08lx\n",
-                   tsk->pid, tsk->comm, code, address);
+               printk(KERN_DEBUG "do_page_fault() pid=%d:#%u "
+                   "command='%s' type=%lu address=0x%08lx\n",
+                   tsk->pid, tsk->xid, tsk->comm, code, address);
                if (vma) {
                        printk(KERN_DEBUG "vm_start = 0x%08lx, vm_end = 0x%08lx\n",
                                        vma->vm_start, vma->vm_end);
@@ -260,7 +261,8 @@ no_context:
 
   out_of_memory:
        up_read(&mm->mmap_sem);
-       printk(KERN_CRIT "VM: killing process %s\n", current->comm);
+       printk(KERN_CRIT "VM: killing process %s(%d:#%u)\n",
+               current->comm, current->pid, current->xid);
        if (user_mode(regs))
                do_exit(SIGKILL);
        goto no_context;
diff -NurpP --minimal linux-2.6.22.10/arch/powerpc/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/powerpc/Kconfig
--- linux-2.6.22.10/arch/powerpc/Kconfig        2007-07-09 13:17:50 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/powerpc/Kconfig     2007-08-05 20:53:12 +0200
@@ -906,6 +906,8 @@ endmenu
 
 source "arch/powerpc/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 config KEYS_COMPAT
diff -NurpP --minimal linux-2.6.22.10/arch/powerpc/kernel/asm-offsets.c linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/asm-offsets.c
--- linux-2.6.22.10/arch/powerpc/kernel/asm-offsets.c   2007-07-09 13:17:51 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/asm-offsets.c        2007-08-05 20:53:12 +0200
@@ -250,6 +250,7 @@ int main(void)
 
        DEFINE(CLONE_VM, CLONE_VM);
        DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
+       DEFINE(CLONE_KTHREAD, CLONE_KTHREAD);
 
 #ifndef CONFIG_PPC64
        DEFINE(MM_PGD, offsetof(struct mm_struct, pgd));
diff -NurpP --minimal linux-2.6.22.10/arch/powerpc/kernel/irq.c linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/irq.c
--- linux-2.6.22.10/arch/powerpc/kernel/irq.c   2007-07-09 13:17:51 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/irq.c        2007-08-05 20:53:12 +0200
@@ -53,6 +53,7 @@
 #include <linux/mutex.h>
 #include <linux/bootmem.h>
 #include <linux/pci.h>
+#include <linux/vs_context.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
diff -NurpP --minimal linux-2.6.22.10/arch/powerpc/kernel/misc_32.S linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/misc_32.S
--- linux-2.6.22.10/arch/powerpc/kernel/misc_32.S       2007-07-09 13:17:51 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/misc_32.S    2007-08-05 20:53:12 +0200
@@ -745,7 +745,7 @@ _GLOBAL(kernel_thread)
        mr      r30,r3          /* function */
        mr      r31,r4          /* argument */
        ori     r3,r5,CLONE_VM  /* flags */
-       oris    r3,r3,CLONE_UNTRACED>>16
+       oris    r3,r3,(CLONE_UNTRACED|CLONE_KTHREAD)>>16
        li      r4,0            /* new sp (unused) */
        li      r0,__NR_clone
        sc
diff -NurpP --minimal linux-2.6.22.10/arch/powerpc/kernel/misc_64.S linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/misc_64.S
--- linux-2.6.22.10/arch/powerpc/kernel/misc_64.S       2007-05-02 19:24:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/misc_64.S    2007-08-05 20:53:12 +0200
@@ -434,7 +434,7 @@ _GLOBAL(kernel_thread)
        mr      r29,r3
        mr      r30,r4
        ori     r3,r5,CLONE_VM  /* flags */
-       oris    r3,r3,(CLONE_UNTRACED>>16)
+       oris    r3,r3,(CLONE_UNTRACED|CLONE_KTHREAD)>>16
        li      r4,0            /* new sp (unused) */
        li      r0,__NR_clone
        sc
diff -NurpP --minimal linux-2.6.22.10/arch/powerpc/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/process.c
--- linux-2.6.22.10/arch/powerpc/kernel/process.c       2007-10-30 01:57:12 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/process.c    2007-09-30 14:57:55 +0200
@@ -422,8 +422,9 @@ void show_regs(struct pt_regs * regs)
        trap = TRAP(regs);
        if (trap == 0x300 || trap == 0x600)
                printk("DAR: "REG", DSISR: "REG"\n", regs->dar, regs->dsisr);
-       printk("TASK = %p[%d] '%s' THREAD: %p",
-              current, current->pid, current->comm, task_thread_info(current));
+       printk("TASK = %p[%d,#%u] '%s' THREAD: %p",
+              current, current->pid, current->xid,
+              current->comm, task_thread_info(current));
 
 #ifdef CONFIG_SMP
        printk(" CPU: %d", smp_processor_id());
diff -NurpP --minimal linux-2.6.22.10/arch/powerpc/kernel/sys_ppc32.c linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/sys_ppc32.c
--- linux-2.6.22.10/arch/powerpc/kernel/sys_ppc32.c     2007-07-09 13:17:51 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/sys_ppc32.c  2007-08-05 20:53:12 +0200
@@ -205,7 +205,7 @@ asmlinkage long compat_sys_gettimeofday(
 {
        if (tv) {
                struct timeval ktv;
-               do_gettimeofday(&ktv);
+               vx_gettimeofday(&ktv);
                if (put_tv32(tv, &ktv))
                        return -EFAULT;
        }
diff -NurpP --minimal linux-2.6.22.10/arch/powerpc/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/traps.c
--- linux-2.6.22.10/arch/powerpc/kernel/traps.c 2007-07-09 13:17:51 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/traps.c      2007-08-05 20:53:12 +0200
@@ -878,8 +878,9 @@ void nonrecoverable_exception(struct pt_
 
 void trace_syscall(struct pt_regs *regs)
 {
-       printk("Task: %p(%d), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld    %s\n",
-              current, current->pid, regs->nip, regs->link, regs->gpr[0],
+       printk("Task: %p(%d[#%u]), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld    %s\n",
+              current, current->pid, current->xid,
+              regs->nip, regs->link, regs->gpr[0],
               regs->ccr&0x10000000?"Error=":"", regs->gpr[3], print_tainted());
 }
 
diff -NurpP --minimal linux-2.6.22.10/arch/powerpc/kernel/vdso.c linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/vdso.c
--- linux-2.6.22.10/arch/powerpc/kernel/vdso.c  2007-07-09 13:17:51 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/powerpc/kernel/vdso.c       2007-08-05 20:53:12 +0200
@@ -21,6 +21,7 @@
 #include <linux/elf.h>
 #include <linux/security.h>
 #include <linux/bootmem.h>
+#include <linux/vs_memory.h>
 
 #include <asm/pgtable.h>
 #include <asm/system.h>
diff -NurpP --minimal linux-2.6.22.10/arch/powerpc/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/powerpc/mm/fault.c
--- linux-2.6.22.10/arch/powerpc/mm/fault.c     2007-07-09 13:17:51 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/powerpc/mm/fault.c  2007-08-05 20:53:12 +0200
@@ -378,7 +378,8 @@ out_of_memory:
                down_read(&mm->mmap_sem);
                goto survive;
        }
-       printk("VM: killing process %s\n", current->comm);
+       printk("VM: killing process %s(%d:#%u)\n",
+               current->comm, current->pid, current->xid);
        if (user_mode(regs))
                do_exit(SIGKILL);
        return SIGKILL;
diff -NurpP --minimal linux-2.6.22.10/arch/ppc/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/ppc/Kconfig
--- linux-2.6.22.10/arch/ppc/Kconfig    2007-05-02 19:24:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ppc/Kconfig 2007-08-05 20:53:12 +0200
@@ -1455,6 +1455,8 @@ source "arch/powerpc/oprofile/Kconfig"
 
 source "arch/ppc/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/ppc/kernel/asm-offsets.c linux-2.6.22.10-vs2.3.0.29/arch/ppc/kernel/asm-offsets.c
--- linux-2.6.22.10/arch/ppc/kernel/asm-offsets.c       2007-07-09 13:18:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ppc/kernel/asm-offsets.c    2007-08-05 20:53:12 +0200
@@ -120,6 +120,7 @@ main(void)
        DEFINE(TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap));
        DEFINE(CLONE_VM, CLONE_VM);
        DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
+       DEFINE(CLONE_KTHREAD, CLONE_KTHREAD);
        DEFINE(MM_PGD, offsetof(struct mm_struct, pgd));
 
        /* About the CPU features table */
diff -NurpP --minimal linux-2.6.22.10/arch/ppc/kernel/misc.S linux-2.6.22.10-vs2.3.0.29/arch/ppc/kernel/misc.S
--- linux-2.6.22.10/arch/ppc/kernel/misc.S      2006-11-30 21:18:32 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/ppc/kernel/misc.S   2007-08-05 20:53:12 +0200
@@ -848,7 +848,7 @@ _GLOBAL(kernel_thread)
        mr      r30,r3          /* function */
        mr      r31,r4          /* argument */
        ori     r3,r5,CLONE_VM  /* flags */
-       oris    r3,r3,CLONE_UNTRACED>>16
+       oris    r3,r3,(CLONE_UNTRACED|CLONE_KTHREAD)>>16
        li      r4,0            /* new sp (unused) */
        li      r0,__NR_clone
        sc
diff -NurpP --minimal linux-2.6.22.10/arch/ppc/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/ppc/kernel/traps.c
--- linux-2.6.22.10/arch/ppc/kernel/traps.c     2007-07-09 13:18:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/ppc/kernel/traps.c  2007-08-05 20:53:12 +0200
@@ -696,8 +696,9 @@ void nonrecoverable_exception(struct pt_
 
 void trace_syscall(struct pt_regs *regs)
 {
-       printk("Task: %p(%d), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld    %s\n",
-              current, current->pid, regs->nip, regs->link, regs->gpr[0],
+       printk("Task: %p(%d[#%u]), PC: %08lX/%08lX, Syscall: %3ld, Result: %s%ld    %s\n",
+              current, current->pid, current->xid,
+              regs->nip, regs->link, regs->gpr[0],
               regs->ccr&0x10000000?"Error=":"", regs->gpr[3], print_tainted());
 }
 
diff -NurpP --minimal linux-2.6.22.10/arch/ppc/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/ppc/mm/fault.c
--- linux-2.6.22.10/arch/ppc/mm/fault.c 2006-11-30 21:18:32 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/ppc/mm/fault.c      2007-08-05 20:53:12 +0200
@@ -296,7 +296,8 @@ out_of_memory:
                down_read(&mm->mmap_sem);
                goto survive;
        }
-       printk("VM: killing process %s\n", current->comm);
+       printk("VM: killing process %s(%d:#%u)\n",
+               current->comm, current->pid, current->xid);
        if (user_mode(regs))
                do_exit(SIGKILL);
        return SIGKILL;
diff -NurpP --minimal linux-2.6.22.10/arch/s390/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/s390/Kconfig
--- linux-2.6.22.10/arch/s390/Kconfig   2007-07-09 13:18:02 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/s390/Kconfig        2007-08-05 20:53:12 +0200
@@ -551,6 +551,8 @@ endmenu
 
 source "arch/s390/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/s390/kernel/compat_linux.c linux-2.6.22.10-vs2.3.0.29/arch/s390/kernel/compat_linux.c
--- linux-2.6.22.10/arch/s390/kernel/compat_linux.c     2007-07-09 13:18:02 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/s390/kernel/compat_linux.c  2007-08-05 20:53:12 +0200
@@ -567,7 +567,7 @@ asmlinkage long sys32_gettimeofday(struc
 {
        if (tv) {
                struct timeval ktv;
-               do_gettimeofday(&ktv);
+               vx_gettimeofday(&ktv);
                if (put_tv32(tv, &ktv))
                        return -EFAULT;
        }
diff -NurpP --minimal linux-2.6.22.10/arch/s390/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/s390/kernel/process.c
--- linux-2.6.22.10/arch/s390/kernel/process.c  2007-07-09 13:18:02 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/s390/kernel/process.c       2007-08-05 20:53:12 +0200
@@ -164,9 +164,9 @@ void show_regs(struct pt_regs *regs)
        struct task_struct *tsk = current;
 
         printk("CPU:    %d    %s\n", task_thread_info(tsk)->cpu, print_tainted());
-        printk("Process %s (pid: %d, task: %p, ksp: %p)\n",
-              current->comm, current->pid, (void *) tsk,
-              (void *) tsk->thread.ksp);
+       printk("Process %s (pid: %d[#%u], task: %p, ksp: %p)\n",
+              current->comm, current->pid, current->xid,
+              (void *) tsk, (void *) tsk->thread.ksp);
 
        show_registers(regs);
        /* Show stack backtrace if pt_regs is from kernel mode */
@@ -197,7 +197,7 @@ int kernel_thread(int (*fn)(void *), voi
        regs.orig_gpr2 = -1;
 
        /* Ok, create the new process.. */
-       return do_fork(flags | CLONE_VM | CLONE_UNTRACED,
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD,
                       0, &regs, 0, NULL, NULL);
 }
 
diff -NurpP --minimal linux-2.6.22.10/arch/s390/kernel/ptrace.c linux-2.6.22.10-vs2.3.0.29/arch/s390/kernel/ptrace.c
--- linux-2.6.22.10/arch/s390/kernel/ptrace.c   2007-05-02 19:24:29 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/s390/kernel/ptrace.c        2007-08-05 20:53:12 +0200
@@ -33,6 +33,7 @@
 #include <linux/security.h>
 #include <linux/audit.h>
 #include <linux/signal.h>
+#include <linux/vs_base.h>
 
 #include <asm/segment.h>
 #include <asm/page.h>
@@ -725,7 +726,13 @@ sys_ptrace(long request, long pid, long 
                goto out;
        }
 
+       if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT)) {
+               ret = -EPERM;
+               goto out_tsk;
+       }
+
        ret = do_ptrace(child, request, addr, data);
+out_tsk:
        put_task_struct(child);
 out:
        unlock_kernel();
diff -NurpP --minimal linux-2.6.22.10/arch/s390/kernel/syscalls.S linux-2.6.22.10-vs2.3.0.29/arch/s390/kernel/syscalls.S
--- linux-2.6.22.10/arch/s390/kernel/syscalls.S 2007-07-09 13:18:02 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/s390/kernel/syscalls.S      2007-08-05 20:53:12 +0200
@@ -271,7 +271,7 @@ SYSCALL(sys_clock_settime,sys_clock_sett
 SYSCALL(sys_clock_gettime,sys_clock_gettime,sys32_clock_gettime_wrapper)       /* 260 */
 SYSCALL(sys_clock_getres,sys_clock_getres,sys32_clock_getres_wrapper)
 SYSCALL(sys_clock_nanosleep,sys_clock_nanosleep,sys32_clock_nanosleep_wrapper)
-NI_SYSCALL                                                     /* reserved for vserver */
+SYSCALL(sys_vserver,sys_vserver,sys32_vserver)
 SYSCALL(s390_fadvise64_64,sys_ni_syscall,sys32_fadvise64_64_wrapper)
 SYSCALL(sys_statfs64,sys_statfs64,compat_sys_statfs64_wrapper)
 SYSCALL(sys_fstatfs64,sys_fstatfs64,compat_sys_fstatfs64_wrapper)
diff -NurpP --minimal linux-2.6.22.10/arch/s390/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/s390/mm/fault.c
--- linux-2.6.22.10/arch/s390/mm/fault.c        2007-07-09 13:18:02 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/s390/mm/fault.c     2007-08-05 20:53:12 +0200
@@ -216,7 +216,8 @@ static int do_out_of_memory(struct pt_re
                down_read(&mm->mmap_sem);
                return 1;
        }
-       printk("VM: killing process %s\n", tsk->comm);
+       printk("VM: killing process %s(%d:#%u)\n",
+               tsk->comm, tsk->pid, tsk->xid);
        if (regs->psw.mask & PSW_MASK_PSTATE)
                do_exit(SIGKILL);
        do_no_context(regs, error_code, address);
diff -NurpP --minimal linux-2.6.22.10/arch/sh/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/sh/Kconfig
--- linux-2.6.22.10/arch/sh/Kconfig     2007-07-09 13:18:02 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sh/Kconfig  2007-08-05 20:53:12 +0200
@@ -723,6 +723,8 @@ source "arch/sh/oprofile/Kconfig"
 
 source "arch/sh/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/sh/kernel/irq.c linux-2.6.22.10-vs2.3.0.29/arch/sh/kernel/irq.c
--- linux-2.6.22.10/arch/sh/kernel/irq.c        2007-07-09 13:18:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sh/kernel/irq.c     2007-08-05 20:53:12 +0200
@@ -12,6 +12,7 @@
 #include <linux/kernel_stat.h>
 #include <linux/seq_file.h>
 #include <linux/irq.h>
+#include <linux/vs_context.h>
 #include <asm/processor.h>
 #include <asm/machvec.h>
 #include <asm/uaccess.h>
diff -NurpP --minimal linux-2.6.22.10/arch/sh/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/sh/kernel/process.c
--- linux-2.6.22.10/arch/sh/kernel/process.c    2007-07-09 13:18:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sh/kernel/process.c 2007-08-05 20:53:12 +0200
@@ -118,7 +118,8 @@ void machine_power_off(void)
 void show_regs(struct pt_regs * regs)
 {
        printk("\n");
-       printk("Pid : %d, Comm: %20s\n", current->pid, current->comm);
+       printk("Pid : %d:#%u, Comm: %20s\n",
+               current->pid, current->xid, current->comm);
        print_symbol("PC is at %s\n", instruction_pointer(regs));
        printk("PC  : %08lx SP  : %08lx SR  : %08lx ",
               regs->pc, regs->regs[15], regs->sr);
@@ -179,7 +180,7 @@ int kernel_thread(int (*fn)(void *), voi
        regs.sr = (1 << 30);
 
        /* Ok, create the new process.. */
-       return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD, 0,
                       &regs, 0, NULL, NULL);
 }
 
diff -NurpP --minimal linux-2.6.22.10/arch/sh/kernel/vsyscall/vsyscall.c linux-2.6.22.10-vs2.3.0.29/arch/sh/kernel/vsyscall/vsyscall.c
--- linux-2.6.22.10/arch/sh/kernel/vsyscall/vsyscall.c  2007-07-09 13:18:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sh/kernel/vsyscall/vsyscall.c       2007-08-05 20:53:12 +0200
@@ -18,6 +18,7 @@
 #include <linux/module.h>
 #include <linux/elf.h>
 #include <linux/sched.h>
+#include <linux/vs_memory.h>
 
 /*
  * Should the kernel map a VDSO page into processes and pass its
diff -NurpP --minimal linux-2.6.22.10/arch/sh/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/sh/mm/fault.c
--- linux-2.6.22.10/arch/sh/mm/fault.c  2007-07-09 13:18:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sh/mm/fault.c       2007-08-05 20:53:12 +0200
@@ -201,7 +201,8 @@ out_of_memory:
                down_read(&mm->mmap_sem);
                goto survive;
        }
-       printk("VM: killing process %s\n", tsk->comm);
+       printk("VM: killing process %s(%d:#%u)\n",
+               tsk->comm, tsk->pid, tsk->xid);
        if (user_mode(regs))
                do_exit(SIGKILL);
        goto no_context;
diff -NurpP --minimal linux-2.6.22.10/arch/sh64/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/sh64/kernel/process.c
--- linux-2.6.22.10/arch/sh64/kernel/process.c  2007-07-09 13:18:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sh64/kernel/process.c       2007-08-05 20:53:12 +0200
@@ -400,8 +400,8 @@ int kernel_thread(int (*fn)(void *), voi
        regs.pc = (unsigned long)kernel_thread_helper;
        regs.sr = (1 << 30);
 
-       return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
-                      &regs, 0, NULL, NULL);
+       return do_fork(flags | CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD,
+               0, &regs, 0, NULL, NULL);
 }
 
 /*
diff -NurpP --minimal linux-2.6.22.10/arch/sh64/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/sh64/mm/fault.c
--- linux-2.6.22.10/arch/sh64/mm/fault.c        2007-07-09 13:18:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sh64/mm/fault.c     2007-08-05 20:53:12 +0200
@@ -81,7 +81,7 @@ static inline void print_vma(struct vm_a
 
 static inline void print_task(struct task_struct *tsk)
 {
-       printk("Task pid %d\n", tsk->pid);
+       printk("Task pid %d:#%u\n", tsk->pid, tsk->xid);
 }
 
 static pte_t *lookup_pte(struct mm_struct *mm, unsigned long address)
@@ -330,7 +330,8 @@ out_of_memory:
                down_read(&mm->mmap_sem);
                goto survive;
        }
-       printk("VM: killing process %s\n", tsk->comm);
+       printk("VM: killing process %s(%d:#%u)\n",
+               tsk->comm, tsk->pid, tsk->xid);
        if (user_mode(regs))
                do_exit(SIGKILL);
        goto no_context;
diff -NurpP --minimal linux-2.6.22.10/arch/sparc/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/sparc/Kconfig
--- linux-2.6.22.10/arch/sparc/Kconfig  2007-07-09 13:18:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc/Kconfig       2007-08-05 20:53:12 +0200
@@ -317,6 +317,8 @@ endmenu
 
 source "arch/sparc/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/sparc/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/sparc/kernel/process.c
--- linux-2.6.22.10/arch/sparc/kernel/process.c 2007-07-09 13:18:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc/kernel/process.c      2007-08-05 20:53:12 +0200
@@ -705,7 +705,8 @@ pid_t kernel_thread(int (*fn)(void *), v
                             /* Notreached by child. */
                             "1: mov %%o0, %0\n\t" :
                             "=r" (retval) :
-                            "i" (__NR_clone), "r" (flags | CLONE_VM | CLONE_UNTRACED),
+                            "i" (__NR_clone), "r" (flags |
+                                       CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD),
                             "i" (__NR_exit),  "r" (fn), "r" (arg) :
                             "g1", "g2", "g3", "o0", "o1", "memory", "cc");
        return retval;
diff -NurpP --minimal linux-2.6.22.10/arch/sparc/kernel/ptrace.c linux-2.6.22.10-vs2.3.0.29/arch/sparc/kernel/ptrace.c
--- linux-2.6.22.10/arch/sparc/kernel/ptrace.c  2007-02-06 03:00:18 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc/kernel/ptrace.c       2007-08-05 20:53:12 +0200
@@ -19,6 +19,7 @@
 #include <linux/smp_lock.h>
 #include <linux/security.h>
 #include <linux/signal.h>
+#include <linux/vs_base.h>
 
 #include <asm/pgtable.h>
 #include <asm/system.h>
@@ -302,6 +303,10 @@ asmlinkage void do_ptrace(struct pt_regs
                pt_error_return(regs, -ret);
                goto out;
        }
+       if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT)) {
+               pt_error_return(regs, ESRCH);
+               goto out_tsk;
+       }
 
        if ((current->personality == PER_SUNOS && request == PTRACE_SUNATTACH)
            || (current->personality != PER_SUNOS && request == PTRACE_ATTACH)) {
diff -NurpP --minimal linux-2.6.22.10/arch/sparc/kernel/systbls.S linux-2.6.22.10-vs2.3.0.29/arch/sparc/kernel/systbls.S
--- linux-2.6.22.10/arch/sparc/kernel/systbls.S 2007-07-09 13:18:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc/kernel/systbls.S      2007-08-05 20:53:12 +0200
@@ -71,7 +71,7 @@ sys_call_table:
 /*250*/        .long sparc_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl
 /*255*/        .long sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep
 /*260*/        .long sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun
-/*265*/        .long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy
+/*265*/        .long sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy
 /*270*/        .long sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
 /*275*/        .long sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
 /*280*/        .long sys_tee, sys_add_key, sys_request_key, sys_keyctl, sys_openat
diff -NurpP --minimal linux-2.6.22.10/arch/sparc/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/sparc/kernel/traps.c
--- linux-2.6.22.10/arch/sparc/kernel/traps.c   2007-07-09 13:18:05 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc/kernel/traps.c        2007-08-05 20:53:12 +0200
@@ -99,7 +99,8 @@ void die_if_kernel(char *str, struct pt_
 "              /_| \\__/ |_\\\n"
 "                 \\__U_/\n");
 
-       printk("%s(%d): %s [#%d]\n", current->comm, current->pid, str, ++die_counter);
+       printk("%s(%d[#%u]): %s [#%d]\n", current->comm,
+               current->pid, current->xid, str, ++die_counter);
        show_regs(regs);
 
        __SAVE; __SAVE; __SAVE; __SAVE;
diff -NurpP --minimal linux-2.6.22.10/arch/sparc/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/sparc/mm/fault.c
--- linux-2.6.22.10/arch/sparc/mm/fault.c       2007-07-09 13:18:05 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc/mm/fault.c    2007-08-05 20:53:12 +0200
@@ -367,7 +367,8 @@ no_context:
  */
 out_of_memory:
        up_read(&mm->mmap_sem);
-       printk("VM: killing process %s\n", tsk->comm);
+       printk("VM: killing process %s(%d:#%u)\n",
+               tsk->comm, tsk->pid, tsk->xid);
        if (from_user)
                do_exit(SIGKILL);
        goto no_context;
diff -NurpP --minimal linux-2.6.22.10/arch/sparc64/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/sparc64/Kconfig
--- linux-2.6.22.10/arch/sparc64/Kconfig        2007-07-09 13:18:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc64/Kconfig     2007-08-05 20:53:12 +0200
@@ -451,6 +451,8 @@ endmenu
 
 source "arch/sparc64/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/sparc64/kernel/binfmt_aout32.c linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/binfmt_aout32.c
--- linux-2.6.22.10/arch/sparc64/kernel/binfmt_aout32.c 2007-02-06 03:00:18 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/binfmt_aout32.c      2007-08-05 20:53:12 +0200
@@ -27,6 +27,7 @@
 #include <linux/binfmts.h>
 #include <linux/personality.h>
 #include <linux/init.h>
+#include <linux/vs_memory.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
diff -NurpP --minimal linux-2.6.22.10/arch/sparc64/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/process.c
--- linux-2.6.22.10/arch/sparc64/kernel/process.c       2007-07-09 13:18:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/process.c    2007-08-05 20:53:12 +0200
@@ -707,7 +707,8 @@ pid_t kernel_thread(int (*fn)(void *), v
                             /* Notreached by child. */
                             "1:" :
                             "=r" (retval) :
-                            "i" (__NR_clone), "r" (flags | CLONE_VM | CLONE_UNTRACED),
+                            "i" (__NR_clone), "r" (flags |
+                               CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD),
                             "i" (__NR_exit),  "r" (fn), "r" (arg) :
                             "g1", "g2", "g3", "o0", "o1", "memory", "cc");
        return retval;
diff -NurpP --minimal linux-2.6.22.10/arch/sparc64/kernel/ptrace.c linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/ptrace.c
--- linux-2.6.22.10/arch/sparc64/kernel/ptrace.c        2007-02-06 03:00:18 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/ptrace.c     2007-08-05 20:53:12 +0200
@@ -22,6 +22,7 @@
 #include <linux/seccomp.h>
 #include <linux/audit.h>
 #include <linux/signal.h>
+#include <linux/vs_base.h>
 
 #include <asm/asi.h>
 #include <asm/pgtable.h>
@@ -215,6 +216,10 @@ asmlinkage void do_ptrace(struct pt_regs
                pt_error_return(regs, -ret);
                goto out;
        }
+       if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT)) {
+               pt_error_return(regs, ESRCH);
+               goto out_tsk;
+       }
 
        if ((current->personality == PER_SUNOS && request == PTRACE_SUNATTACH)
            || (current->personality != PER_SUNOS && request == PTRACE_ATTACH)) {
diff -NurpP --minimal linux-2.6.22.10/arch/sparc64/kernel/sys_sparc32.c linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/sys_sparc32.c
--- linux-2.6.22.10/arch/sparc64/kernel/sys_sparc32.c   2007-07-09 13:18:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/sys_sparc32.c        2007-08-05 20:53:12 +0200
@@ -729,7 +729,7 @@ asmlinkage long sys32_gettimeofday(struc
 {
        if (tv) {
                struct timeval ktv;
-               do_gettimeofday(&ktv);
+               vx_gettimeofday(&ktv);
                if (put_tv32(tv, &ktv))
                        return -EFAULT;
        }
diff -NurpP --minimal linux-2.6.22.10/arch/sparc64/kernel/systbls.S linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/systbls.S
--- linux-2.6.22.10/arch/sparc64/kernel/systbls.S       2007-07-09 13:18:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/systbls.S    2007-08-05 20:53:12 +0200
@@ -72,7 +72,7 @@ sys_call_table32:
 /*250*/        .word sys32_mremap, sys32_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl
        .word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep
 /*260*/        .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun
-       .word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
+       .word sys_timer_delete, compat_sys_timer_create, sys32_vserver, compat_sys_io_setup, sys_io_destroy
 /*270*/        .word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink
        .word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid
 /*280*/        .word sys32_tee, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat
@@ -144,7 +144,7 @@ sys_call_table:
 /*250*/        .word sys64_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl
        .word sys_sync_file_range, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep
 /*260*/        .word sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun
-       .word sys_timer_delete, sys_timer_create, sys_ni_syscall, sys_io_setup, sys_io_destroy
+       .word sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy
 /*270*/        .word sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
        .word sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
 /*280*/        .word sys_tee, sys_add_key, sys_request_key, sys_keyctl, sys_openat
diff -NurpP --minimal linux-2.6.22.10/arch/sparc64/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/traps.c
--- linux-2.6.22.10/arch/sparc64/kernel/traps.c 2007-10-30 01:57:12 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc64/kernel/traps.c      2007-09-05 03:06:11 +0200
@@ -2225,7 +2225,8 @@ void die_if_kernel(char *str, struct pt_
 "              /_| \\__/ |_\\\n"
 "                 \\__U_/\n");
 
-       printk("%s(%d): %s [#%d]\n", current->comm, current->pid, str, ++die_counter);
+       printk("%s(%d[#%u]): %s [#%d]\n", current->comm,
+               current->pid, current->xid, str, ++die_counter);
        notify_die(DIE_OOPS, str, regs, 0, 255, SIGSEGV);
        __asm__ __volatile__("flushw");
        __show_regs(regs);
diff -NurpP --minimal linux-2.6.22.10/arch/sparc64/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/sparc64/mm/fault.c
--- linux-2.6.22.10/arch/sparc64/mm/fault.c     2007-10-30 01:57:12 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc64/mm/fault.c  2007-09-05 03:06:11 +0200
@@ -463,7 +463,8 @@ handle_kernel_fault:
 out_of_memory:
        insn = get_fault_insn(regs, insn);
        up_read(&mm->mmap_sem);
-       printk("VM: killing process %s\n", current->comm);
+       printk("VM: killing process %s(%d:#%u)\n",
+               current->comm, current->pid, current->xid);
        if (!(regs->tstate & TSTATE_PRIV))
                do_exit(SIGKILL);
        goto handle_kernel_fault;
diff -NurpP --minimal linux-2.6.22.10/arch/sparc64/solaris/fs.c linux-2.6.22.10-vs2.3.0.29/arch/sparc64/solaris/fs.c
--- linux-2.6.22.10/arch/sparc64/solaris/fs.c   2007-02-06 03:00:21 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/sparc64/solaris/fs.c        2007-08-05 20:53:12 +0200
@@ -368,7 +368,7 @@ static int report_statvfs(struct vfsmoun
                int j = strlen (p);
                
                if (j > 15) j = 15;
-               if (IS_RDONLY(inode)) i = 1;
+               if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt)) i = 1;
                if (mnt->mnt_flags & MNT_NOSUID) i |= 2;
                if (!sysv_valid_dev(inode->i_sb->s_dev))
                        return -EOVERFLOW;
@@ -404,7 +404,7 @@ static int report_statvfs64(struct vfsmo
                int j = strlen (p);
                
                if (j > 15) j = 15;
-               if (IS_RDONLY(inode)) i = 1;
+               if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt)) i = 1;
                if (mnt->mnt_flags & MNT_NOSUID) i |= 2;
                if (!sysv_valid_dev(inode->i_sb->s_dev))
                        return -EOVERFLOW;
diff -NurpP --minimal linux-2.6.22.10/arch/um/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/um/Kconfig
--- linux-2.6.22.10/arch/um/Kconfig     2007-07-09 13:18:07 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/um/Kconfig  2007-08-05 20:53:12 +0200
@@ -316,6 +316,8 @@ source "drivers/connector/Kconfig"
 
 source "fs/Kconfig"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/um/kernel/trap.c linux-2.6.22.10-vs2.3.0.29/arch/um/kernel/trap.c
--- linux-2.6.22.10/arch/um/kernel/trap.c       2007-07-09 13:18:07 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/um/kernel/trap.c    2007-08-05 20:53:12 +0200
@@ -210,7 +210,8 @@ unsigned long segv(struct faultinfo fi, 
                current->thread.arch.faultinfo = fi;
                force_sig_info(SIGBUS, &si, current);
        } else if (err == -ENOMEM) {
-               printk("VM: killing process %s\n", current->comm);
+               printk("VM: killing process %s(%d:#%u)\n",
+                       current->comm, current->pid, current->xid);
                do_exit(SIGKILL);
        } else {
                BUG_ON(err != -EFAULT);
diff -NurpP --minimal linux-2.6.22.10/arch/v850/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/v850/Kconfig
--- linux-2.6.22.10/arch/v850/Kconfig   2007-07-09 13:18:08 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/v850/Kconfig        2007-08-05 20:53:12 +0200
@@ -333,6 +333,8 @@ source "drivers/usb/Kconfig"
 
 source "arch/v850/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/v850/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/v850/kernel/process.c
--- linux-2.6.22.10/arch/v850/kernel/process.c  2007-07-09 13:18:08 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/v850/kernel/process.c       2007-08-05 20:53:12 +0200
@@ -82,7 +82,7 @@ int kernel_thread (int (*fn)(void *), vo
        /* Clone this thread.  Note that we don't pass the clone syscall's
           second argument -- it's ignored for calls from kernel mode (the
           child's SP is always set to the top of the kernel stack).  */
-       arg0 = flags | CLONE_VM;
+       arg0 = flags | CLONE_VM | CLONE_KTHREAD;
        syscall = __NR_clone;
        asm volatile ("trap " SYSCALL_SHORT_TRAP
                      : "=r" (ret), "=r" (syscall)
diff -NurpP --minimal linux-2.6.22.10/arch/v850/kernel/ptrace.c linux-2.6.22.10-vs2.3.0.29/arch/v850/kernel/ptrace.c
--- linux-2.6.22.10/arch/v850/kernel/ptrace.c   2007-07-09 13:18:08 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/v850/kernel/ptrace.c        2007-08-05 20:53:12 +0200
@@ -23,6 +23,7 @@
 #include <linux/sched.h>
 #include <linux/ptrace.h>
 #include <linux/signal.h>
+#include <linux/vs_base.h>
 
 #include <asm/errno.h>
 #include <asm/ptrace.h>
@@ -116,6 +117,9 @@ long arch_ptrace(struct task_struct *chi
 {
        int rval;
 
+       if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT))
+               goto out;
+
        switch (request) {
                unsigned long val, copied;
 
diff -NurpP --minimal linux-2.6.22.10/arch/x86_64/Kconfig linux-2.6.22.10-vs2.3.0.29/arch/x86_64/Kconfig
--- linux-2.6.22.10/arch/x86_64/Kconfig 2007-07-09 13:18:08 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/x86_64/Kconfig      2007-08-05 20:53:12 +0200
@@ -782,6 +782,8 @@ endmenu
 
 source "arch/x86_64/Kconfig.debug"
 
+source "kernel/vserver/Kconfig"
+
 source "security/Kconfig"
 
 source "crypto/Kconfig"
diff -NurpP --minimal linux-2.6.22.10/arch/x86_64/ia32/ia32_aout.c linux-2.6.22.10-vs2.3.0.29/arch/x86_64/ia32/ia32_aout.c
--- linux-2.6.22.10/arch/x86_64/ia32/ia32_aout.c        2007-02-06 03:00:21 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/x86_64/ia32/ia32_aout.c     2007-08-05 20:53:12 +0200
@@ -25,6 +25,7 @@
 #include <linux/binfmts.h>
 #include <linux/personality.h>
 #include <linux/init.h>
+#include <linux/vs_memory.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
diff -NurpP --minimal linux-2.6.22.10/arch/x86_64/ia32/ia32_binfmt.c linux-2.6.22.10-vs2.3.0.29/arch/x86_64/ia32/ia32_binfmt.c
--- linux-2.6.22.10/arch/x86_64/ia32/ia32_binfmt.c      2007-07-09 13:18:08 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/x86_64/ia32/ia32_binfmt.c   2007-08-05 20:53:12 +0200
@@ -324,7 +324,8 @@ int ia32_setup_arg_pages(struct linux_bi
                        kmem_cache_free(vm_area_cachep, mpnt);
                        return ret;
                }
-               mm->stack_vm = mm->total_vm = vma_pages(mpnt);
+               vx_vmpages_sub(mm, mm->total_vm - vma_pages(mpnt));
+               mm->stack_vm = mm->total_vm;
        } 
 
        for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
diff -NurpP --minimal linux-2.6.22.10/arch/x86_64/ia32/ia32entry.S linux-2.6.22.10-vs2.3.0.29/arch/x86_64/ia32/ia32entry.S
--- linux-2.6.22.10/arch/x86_64/ia32/ia32entry.S        2007-10-30 01:57:12 +0100
+++ linux-2.6.22.10-vs2.3.0.29/arch/x86_64/ia32/ia32entry.S     2007-09-30 14:57:59 +0200
@@ -680,7 +680,7 @@ ia32_sys_call_table:
        .quad sys_tgkill                /* 270 */
        .quad compat_sys_utimes
        .quad sys32_fadvise64_64
-       .quad quiet_ni_syscall  /* sys_vserver */
+       .quad sys32_vserver
        .quad sys_mbind
        .quad compat_sys_get_mempolicy  /* 275 */
        .quad sys_set_mempolicy
diff -NurpP --minimal linux-2.6.22.10/arch/x86_64/ia32/sys_ia32.c linux-2.6.22.10-vs2.3.0.29/arch/x86_64/ia32/sys_ia32.c
--- linux-2.6.22.10/arch/x86_64/ia32/sys_ia32.c 2007-07-09 13:18:08 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/x86_64/ia32/sys_ia32.c      2007-08-05 20:53:12 +0200
@@ -454,7 +454,7 @@ sys32_gettimeofday(struct compat_timeval
 {
        if (tv) {
                struct timeval ktv;
-               do_gettimeofday(&ktv);
+               vx_gettimeofday(&ktv);
                if (put_tv32(tv, &ktv))
                        return -EFAULT;
        }
diff -NurpP --minimal linux-2.6.22.10/arch/x86_64/ia32/syscall32.c linux-2.6.22.10-vs2.3.0.29/arch/x86_64/ia32/syscall32.c
--- linux-2.6.22.10/arch/x86_64/ia32/syscall32.c        2007-07-09 13:18:08 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/x86_64/ia32/syscall32.c     2007-08-05 20:53:12 +0200
@@ -10,6 +10,7 @@
 #include <linux/init.h>
 #include <linux/stringify.h>
 #include <linux/security.h>
+#include <linux/vs_memory.h>
 #include <asm/proto.h>
 #include <asm/tlbflush.h>
 #include <asm/ia32_unistd.h>
diff -NurpP --minimal linux-2.6.22.10/arch/x86_64/kernel/process.c linux-2.6.22.10-vs2.3.0.29/arch/x86_64/kernel/process.c
--- linux-2.6.22.10/arch/x86_64/kernel/process.c        2007-07-09 13:18:08 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/x86_64/kernel/process.c     2007-08-05 20:53:12 +0200
@@ -54,7 +54,8 @@
 
 asmlinkage extern void ret_from_fork(void);
 
-unsigned long kernel_thread_flags = CLONE_VM | CLONE_UNTRACED;
+unsigned long kernel_thread_flags =
+       CLONE_VM | CLONE_UNTRACED | CLONE_KTHREAD;
 
 unsigned long boot_option_idle_override = 0;
 EXPORT_SYMBOL(boot_option_idle_override);
@@ -310,8 +311,8 @@ void __show_regs(struct pt_regs * regs)
 
        printk("\n");
        print_modules();
-       printk("Pid: %d, comm: %.20s %s %s %.*s\n",
-               current->pid, current->comm, print_tainted(),
+       printk("Pid: %d:#%u, comm: %.20s %s %s %.*s\n",
+               current->pid, current->xid, current->comm, print_tainted(),
                init_utsname()->release,
                (int)strcspn(init_utsname()->version, " "),
                init_utsname()->version);
diff -NurpP --minimal linux-2.6.22.10/arch/x86_64/kernel/traps.c linux-2.6.22.10-vs2.3.0.29/arch/x86_64/kernel/traps.c
--- linux-2.6.22.10/arch/x86_64/kernel/traps.c  2007-07-09 13:18:08 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/x86_64/kernel/traps.c       2007-09-30 17:11:18 +0200
@@ -33,6 +33,8 @@
 #include <linux/uaccess.h>
 #include <linux/bug.h>
 #include <linux/kdebug.h>
+#include <linux/vs_context.h>
+#include <linux/vserver/history.h>
 
 #include <asm/system.h>
 #include <asm/io.h>
@@ -413,8 +415,9 @@ void show_registers(struct pt_regs *regs
        rsp = regs->rsp;
        printk("CPU %d ", cpu);
        __show_regs(regs);
-       printk("Process %s (pid: %d, threadinfo %p, task %p)\n",
-               cur->comm, cur->pid, task_thread_info(cur), cur);
+       printk("Process %s (pid: %d[#%u], threadinfo %p, task %p)\n",
+               cur->comm, cur->pid, cur->xid,
+               task_thread_info(cur), cur);
 
        /*
         * When in-kernel, we also print out the stack and code at the
@@ -518,6 +521,7 @@ void __kprobes __die(const char * str, s
        printk("\n");
        notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV);
        show_registers(regs);
+       vxh_dump_history();
        /* Executive summary in case the oops scrolled away */
        printk(KERN_ALERT "RIP ");
        printk_address(regs->rip); 
@@ -530,6 +534,7 @@ void die(const char * str, struct pt_reg
 {
        unsigned long flags = oops_begin();
 
+       vxh_throw_oops();
        if (!user_mode(regs))
                report_bug(regs->rip);
 
@@ -542,12 +547,14 @@ void __kprobes die_nmi(char *str, struct
 {
        unsigned long flags = oops_begin();
 
+       vxh_throw_oops();
        /*
         * We are in trouble anyway, lets at least try
         * to get a message out.
         */
        printk(str, smp_processor_id());
        show_registers(regs);
+       vxh_dump_history();
        if (kexec_should_crash(current))
                crash_kexec(regs);
        if (do_panic || panic_on_oops)
@@ -580,8 +587,8 @@ static void __kprobes do_trap(int trapnr
 
                if (exception_trace && unhandled_signal(tsk, signr))
                        printk(KERN_INFO
-                              "%s[%d] trap %s rip:%lx rsp:%lx error:%lx\n",
-                              tsk->comm, tsk->pid, str,
+                              "%s[%d:#%u] trap %s rip:%lx rsp:%lx error:%lx\n",
+                              tsk->comm, tsk->pid, tsk->xid, str,
                               regs->rip, regs->rsp, error_code); 
 
                if (info)
@@ -684,8 +691,8 @@ asmlinkage void __kprobes do_general_pro
 
                if (exception_trace && unhandled_signal(tsk, SIGSEGV))
                        printk(KERN_INFO
-                      "%s[%d] general protection rip:%lx rsp:%lx error:%lx\n",
-                              tsk->comm, tsk->pid,
+                      "%s[%d:#%u] general protection rip:%lx rsp:%lx error:%lx\n",
+                              tsk->comm, tsk->pid, tsk->xid,
                               regs->rip, regs->rsp, error_code); 
 
                force_sig(SIGSEGV, tsk);
diff -NurpP --minimal linux-2.6.22.10/arch/x86_64/mm/fault.c linux-2.6.22.10-vs2.3.0.29/arch/x86_64/mm/fault.c
--- linux-2.6.22.10/arch/x86_64/mm/fault.c      2007-07-09 13:18:08 +0200
+++ linux-2.6.22.10-vs2.3.0.29/arch/x86_64/mm/fault.c   2007-08-05 20:53:12 +0200
@@ -497,10 +497,10 @@ bad_area_nosemaphore:
 
                if (exception_trace && unhandled_signal(tsk, SIGSEGV)) {
                        printk(
-                      "%s%s[%d]: segfault at %016lx rip %016lx rsp %016lx error %lx\n",
+                      "%s%s[%d:#%u]: segfault at %016lx rip %016lx rsp %016lx error %lx\n",
                                        tsk->pid > 1 ? KERN_INFO : KERN_EMERG,
-                                       tsk->comm, tsk->pid, address, regs->rip,
-                                       regs->rsp, error_code);
+                                       tsk->comm, tsk->pid, tsk->xid, address,
+                                       regs->rip, regs->rsp, error_code);
                }
        
                tsk->thread.cr2 = address;
@@ -567,7 +567,8 @@ out_of_memory:
                yield();
                goto again;
        }
-       printk("VM: killing process %s\n", tsk->comm);
+       printk("VM: killing process %s(%d:#%u)\n",
+               tsk->comm, tsk->pid, tsk->xid);
        if (error_code & 4)
                do_exit(SIGKILL);
        goto no_context;
Files linux-2.6.22.10/core and linux-2.6.22.10-vs2.3.0.29/core differ
diff -NurpP --minimal linux-2.6.22.10/drivers/block/Kconfig linux-2.6.22.10-vs2.3.0.29/drivers/block/Kconfig
--- linux-2.6.22.10/drivers/block/Kconfig       2007-07-09 13:18:16 +0200
+++ linux-2.6.22.10-vs2.3.0.29/drivers/block/Kconfig    2007-08-05 20:53:12 +0200
@@ -311,6 +311,13 @@ config BLK_DEV_CRYPTOLOOP
          instead, which can be configured to be on-disk compatible with the
          cryptoloop device.
 
+config BLK_DEV_VROOT
+       tristate "Virtual Root device support"
+       depends on QUOTACTL
+       ---help---
+         Saying Y here will allow you to use quota/fs ioctls on a shared
+         partition within a virtual server without compromising security.
+
 config BLK_DEV_NBD
        tristate "Network block device support"
        depends on NET
diff -NurpP --minimal linux-2.6.22.10/drivers/block/Makefile linux-2.6.22.10-vs2.3.0.29/drivers/block/Makefile
--- linux-2.6.22.10/drivers/block/Makefile      2007-02-06 03:00:26 +0100
+++ linux-2.6.22.10-vs2.3.0.29/drivers/block/Makefile   2007-08-05 20:53:12 +0200
@@ -28,4 +28,5 @@ obj-$(CONFIG_BLK_DEV_CRYPTOLOOP) += cryp
 obj-$(CONFIG_VIODASD)          += viodasd.o
 obj-$(CONFIG_BLK_DEV_SX8)      += sx8.o
 obj-$(CONFIG_BLK_DEV_UB)       += ub.o
+obj-$(CONFIG_BLK_DEV_VROOT)    += vroot.o
 
diff -NurpP --minimal linux-2.6.22.10/drivers/block/loop.c linux-2.6.22.10-vs2.3.0.29/drivers/block/loop.c
--- linux-2.6.22.10/drivers/block/loop.c        2007-07-09 13:18:16 +0200
+++ linux-2.6.22.10-vs2.3.0.29/drivers/block/loop.c     2007-08-16 04:06:51 +0200
@@ -74,6 +74,7 @@
 #include <linux/highmem.h>
 #include <linux/gfp.h>
 #include <linux/kthread.h>
+#include <linux/vs_context.h>
 
 #include <asm/uaccess.h>
 
@@ -790,6 +791,7 @@ static int loop_set_fd(struct loop_devic
        lo->lo_blocksize = lo_blocksize;
        lo->lo_device = bdev;
        lo->lo_flags = lo_flags;
+       lo->lo_xid = vx_current_xid();
        lo->lo_backing_file = file;
        lo->transfer = transfer_none;
        lo->ioctl = NULL;
@@ -909,6 +911,7 @@ static int loop_clr_fd(struct loop_devic
        lo->lo_encrypt_key_size = 0;
        lo->lo_flags = 0;
        lo->lo_thread = NULL;
+       lo->lo_xid = 0;
        memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE);
        memset(lo->lo_crypt_name, 0, LO_NAME_SIZE);
        memset(lo->lo_file_name, 0, LO_NAME_SIZE);
@@ -930,7 +933,7 @@ loop_set_status(struct loop_device *lo, 
        struct loop_func_table *xfer;
 
        if (lo->lo_encrypt_key_size && lo->lo_key_owner != current->uid &&
-           !capable(CAP_SYS_ADMIN))
+           !vx_capable(CAP_SYS_ADMIN, VXC_ADMIN_CLOOP))
                return -EPERM;
        if (lo->lo_state != Lo_bound)
                return -ENXIO;
@@ -1010,7 +1013,8 @@ loop_get_status(struct loop_device *lo, 
        memcpy(info->lo_crypt_name, lo->lo_crypt_name, LO_NAME_SIZE);
        info->lo_encrypt_type =
                lo->lo_encryption ? lo->lo_encryption->number : 0;
-       if (lo->lo_encrypt_key_size && capable(CAP_SYS_ADMIN)) {
+       if (lo->lo_encrypt_key_size &&
+               vx_capable(CAP_SYS_ADMIN, VXC_ADMIN_CLOOP)) {
                info->lo_encrypt_key_size = lo->lo_encrypt_key_size;
                memcpy(info->lo_encrypt_key, lo->lo_encrypt_key,
                       lo->lo_encrypt_key_size);
@@ -1321,6 +1325,9 @@ static int lo_open(struct inode *inode, 
 {
        struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
 
+       if (!vx_check(lo->lo_xid, VS_IDENT|VS_HOSTID))
+               return -EACCES;
+
        mutex_lock(&lo->lo_ctl_mutex);
        lo->lo_refcnt++;
        mutex_unlock(&lo->lo_ctl_mutex);
diff -NurpP --minimal linux-2.6.22.10/drivers/block/vroot.c linux-2.6.22.10-vs2.3.0.29/drivers/block/vroot.c
--- linux-2.6.22.10/drivers/block/vroot.c       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/drivers/block/vroot.c    2007-08-05 20:53:12 +0200
@@ -0,0 +1,281 @@
+/*
+ *  linux/drivers/block/vroot.c
+ *
+ *  written by Herbert Pötzl, 9/11/2002
+ *  ported to 2.6.10 by Herbert Pötzl, 30/12/2004
+ *
+ *  based on the loop.c code by Theodore Ts'o.
+ *
+ * Copyright (C) 2002-2007 by Herbert Pötzl.
+ * Redistribution of this file is permitted under the
+ * GNU General Public License.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/file.h>
+#include <linux/major.h>
+#include <linux/blkdev.h>
+
+#include <linux/vroot.h>
+#include <linux/vs_context.h>
+
+
+static int max_vroot = 8;
+
+static struct vroot_device *vroot_dev;
+static struct gendisk **disks;
+
+
+static int vroot_set_dev(
+       struct vroot_device *vr,
+       struct file *vr_file,
+       struct block_device *bdev,
+       unsigned int arg)
+{
+       struct block_device *real_bdev;
+       struct file *file;
+       struct inode *inode;
+       int error;
+
+       error = -EBUSY;
+       if (vr->vr_state != Vr_unbound)
+               goto out;
+
+       error = -EBADF;
+       file = fget(arg);
+       if (!file)
+               goto out;
+
+       error = -EINVAL;
+       inode = file->f_dentry->d_inode;
+
+
+       if (S_ISBLK(inode->i_mode)) {
+               real_bdev = inode->i_bdev;
+               vr->vr_device = real_bdev;
+               __iget(real_bdev->bd_inode);
+       } else
+               goto out_fput;
+
+       vxdprintk(VXD_CBIT(misc, 0),
+               "vroot[%d]_set_dev: dev=" VXF_DEV,
+               vr->vr_number, VXD_DEV(real_bdev));
+
+       vr->vr_state = Vr_bound;
+       error = 0;
+
+ out_fput:
+       fput(file);
+ out:
+       return error;
+}
+
+static int vroot_clr_dev(
+       struct vroot_device *vr,
+       struct file *vr_file,
+       struct block_device *bdev)
+{
+       struct block_device *real_bdev;
+
+       if (vr->vr_state != Vr_bound)
+               return -ENXIO;
+       if (vr->vr_refcnt > 1)  /* we needed one fd for the ioctl */
+               return -EBUSY;
+
+       real_bdev = vr->vr_device;
+
+       vxdprintk(VXD_CBIT(misc, 0),
+               "vroot[%d]_clr_dev: dev=" VXF_DEV,
+               vr->vr_number, VXD_DEV(real_bdev));
+
+       bdput(real_bdev);
+       vr->vr_state = Vr_unbound;
+       vr->vr_device = NULL;
+       return 0;
+}
+
+
+static int vr_ioctl(struct inode *inode, struct file *file,
+       unsigned int cmd, unsigned long arg)
+{
+       struct vroot_device *vr = inode->i_bdev->bd_disk->private_data;
+       int err;
+
+       down(&vr->vr_ctl_mutex);
+       switch (cmd) {
+       case VROOT_SET_DEV:
+               err = vroot_set_dev(vr, file, inode->i_bdev, arg);
+               break;
+       case VROOT_CLR_DEV:
+               err = vroot_clr_dev(vr, file, inode->i_bdev);
+               break;
+       default:
+               err = -EINVAL;
+               break;
+       }
+       up(&vr->vr_ctl_mutex);
+       return err;
+}
+
+static int vr_open(struct inode *inode, struct file *file)
+{
+       struct vroot_device *vr = inode->i_bdev->bd_disk->private_data;
+
+       down(&vr->vr_ctl_mutex);
+       vr->vr_refcnt++;
+       up(&vr->vr_ctl_mutex);
+       return 0;
+}
+
+static int vr_release(struct inode *inode, struct file *file)
+{
+       struct vroot_device *vr = inode->i_bdev->bd_disk->private_data;
+
+       down(&vr->vr_ctl_mutex);
+       --vr->vr_refcnt;
+       up(&vr->vr_ctl_mutex);
+       return 0;
+}
+
+static struct block_device_operations vr_fops = {
+       .owner =        THIS_MODULE,
+       .open =         vr_open,
+       .release =      vr_release,
+       .ioctl =        vr_ioctl,
+};
+
+struct block_device *__vroot_get_real_bdev(struct block_device *bdev)
+{
+       struct inode *inode = bdev->bd_inode;
+       struct vroot_device *vr;
+       struct block_device *real_bdev;
+       int minor = iminor(inode);
+
+       vr = &vroot_dev[minor];
+       real_bdev = vr->vr_device;
+
+       vxdprintk(VXD_CBIT(misc, 0),
+               "vroot[%d]_get_real_bdev: dev=" VXF_DEV,
+               vr->vr_number, VXD_DEV(real_bdev));
+
+       if (vr->vr_state != Vr_bound)
+               return ERR_PTR(-ENXIO);
+
+       __iget(real_bdev->bd_inode);
+       return real_bdev;
+}
+
+/*
+ * And now the modules code and kernel interface.
+ */
+
+module_param(max_vroot, int, 0);
+
+MODULE_PARM_DESC(max_vroot, "Maximum number of vroot devices (1-256)");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_BLOCKDEV_MAJOR(VROOT_MAJOR);
+
+MODULE_AUTHOR ("Herbert Pötzl");
+MODULE_DESCRIPTION ("Virtual Root Device Mapper");
+
+
+int __init vroot_init(void)
+{
+       int err, i;
+
+       if (max_vroot < 1 || max_vroot > 256) {
+               max_vroot = MAX_VROOT_DEFAULT;
+               printk(KERN_WARNING "vroot: invalid max_vroot "
+                       "(must be between 1 and 256), "
+                       "using default (%d)\n", max_vroot);
+       }
+
+       if (register_blkdev(VROOT_MAJOR, "vroot"))
+               return -EIO;
+
+       err = -ENOMEM;
+       vroot_dev = kmalloc(max_vroot * sizeof(struct vroot_device), GFP_KERNEL);
+       if (!vroot_dev)
+               goto out_mem1;
+       memset(vroot_dev, 0, max_vroot * sizeof(struct vroot_device));
+
+       disks = kmalloc(max_vroot * sizeof(struct gendisk *), GFP_KERNEL);
+       if (!disks)
+               goto out_mem2;
+
+       for (i = 0; i < max_vroot; i++) {
+               disks[i] = alloc_disk(1);
+               if (!disks[i])
+                       goto out_mem3;
+       }
+
+       for (i = 0; i < max_vroot; i++) {
+               struct vroot_device *vr = &vroot_dev[i];
+               struct gendisk *disk = disks[i];
+
+               memset(vr, 0, sizeof(*vr));
+               init_MUTEX(&vr->vr_ctl_mutex);
+               vr->vr_number = i;
+               disk->major = VROOT_MAJOR;
+               disk->first_minor = i;
+               disk->fops = &vr_fops;
+               sprintf(disk->disk_name, "vroot%d", i);
+               disk->private_data = vr;
+       }
+
+       err = register_vroot_grb(&__vroot_get_real_bdev);
+       if (err)
+               goto out_mem3;
+
+       for (i = 0; i < max_vroot; i++)
+               add_disk(disks[i]);
+       printk(KERN_INFO "vroot: loaded (max %d devices)\n", max_vroot);
+       return 0;
+
+out_mem3:
+       while (i--)
+               put_disk(disks[i]);
+       kfree(disks);
+out_mem2:
+       kfree(vroot_dev);
+out_mem1:
+       unregister_blkdev(VROOT_MAJOR, "vroot");
+       printk(KERN_ERR "vroot: ran out of memory\n");
+       return err;
+}
+
+void vroot_exit(void)
+{
+       int i;
+
+       if (unregister_vroot_grb(&__vroot_get_real_bdev))
+               printk(KERN_WARNING "vroot: cannot unregister grb\n");
+
+       for (i = 0; i < max_vroot; i++) {
+               del_gendisk(disks[i]);
+               put_disk(disks[i]);
+       }
+       if (unregister_blkdev(VROOT_MAJOR, "vroot"))
+               printk(KERN_WARNING "vroot: cannot unregister blkdev\n");
+
+       kfree(disks);
+       kfree(vroot_dev);
+}
+
+module_init(vroot_init);
+module_exit(vroot_exit);
+
+#ifndef MODULE
+
+static int __init max_vroot_setup(char *str)
+{
+       max_vroot = simple_strtol(str, NULL, 0);
+       return 1;
+}
+
+__setup("max_vroot=", max_vroot_setup);
+
+#endif
+
diff -NurpP --minimal linux-2.6.22.10/drivers/char/sysrq.c linux-2.6.22.10-vs2.3.0.29/drivers/char/sysrq.c
--- linux-2.6.22.10/drivers/char/sysrq.c        2007-07-09 13:18:20 +0200
+++ linux-2.6.22.10-vs2.3.0.29/drivers/char/sysrq.c     2007-08-05 20:53:12 +0200
@@ -36,6 +36,7 @@
 #include <linux/kexec.h>
 #include <linux/irq.h>
 #include <linux/hrtimer.h>
+#include <linux/vserver/debug.h>
 
 #include <asm/ptrace.h>
 #include <asm/irq_regs.h>
@@ -309,6 +310,21 @@ static struct sysrq_key_op sysrq_unrt_op
        .enable_mask    = SYSRQ_ENABLE_RTNICE,
 };
 
+
+#ifdef CONFIG_VSERVER_DEBUG
+static void sysrq_handle_vxinfo(int key, struct tty_struct *tty)
+{
+       dump_vx_info_inactive((key == 'x')?0:1);
+}
+
+static struct sysrq_key_op sysrq_showvxinfo_op = {
+       .handler        = sysrq_handle_vxinfo,
+       .help_msg       = "conteXt",
+       .action_msg     = "Show Context Info",
+       .enable_mask    = SYSRQ_ENABLE_DUMP,
+};
+#endif
+
 /* Key Operations table and lock */
 static DEFINE_SPINLOCK(sysrq_key_table_lock);
 
@@ -357,7 +373,11 @@ static struct sysrq_key_op *sysrq_key_ta
        /* x: May be registered on ppc/powerpc for xmon */
        NULL,                           /* x */
        NULL,                           /* y */
-       NULL                            /* z */
+#ifdef CONFIG_VSERVER_DEBUG
+       &sysrq_showvxinfo_op,           /* z */
+#else
+       NULL,                           /* z */
+#endif
 };
 
 /* key2index calculation, -1 on invalid index */
@@ -369,6 +389,8 @@ static int sysrq_key_table_key2index(int
                retval = key - '0';
        else if ((key >= 'a') && (key <= 'z'))
                retval = key + 10 - 'a';
+       else if ((key >= 'A') && (key <= 'Z'))
+               retval = key + 10 - 'A';
        else
                retval = -1;
        return retval;
diff -NurpP --minimal linux-2.6.22.10/drivers/char/tty_io.c linux-2.6.22.10-vs2.3.0.29/drivers/char/tty_io.c
--- linux-2.6.22.10/drivers/char/tty_io.c       2007-07-09 13:18:20 +0200
+++ linux-2.6.22.10-vs2.3.0.29/drivers/char/tty_io.c    2007-08-05 20:53:12 +0200
@@ -103,6 +103,7 @@
 #include <linux/selection.h>
 
 #include <linux/kmod.h>
+#include <linux/vs_pid.h>
 
 #undef TTY_DEBUG_HANGUP
 
@@ -3049,13 +3050,15 @@ unlock:
 
 static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p)
 {
+       pid_t pgrp;
        /*
         * (tty == real_tty) is a cheap way of
         * testing if the tty is NOT a master pty.
         */
        if (tty == real_tty && current->signal->tty != real_tty)
                return -ENOTTY;
-       return put_user(pid_nr(real_tty->pgrp), p);
+       pgrp = vx_map_pid(pid_nr(real_tty->pgrp));
+       return put_user(pgrp, p);
 }
 
 /**
@@ -3086,6 +3089,7 @@ static int tiocspgrp(struct tty_struct *
                return -ENOTTY;
        if (get_user(pgrp_nr, p))
                return -EFAULT;
+       pgrp_nr = vx_rmap_pid(pgrp_nr);
        if (pgrp_nr < 0)
                return -EINVAL;
        rcu_read_lock();
diff -NurpP --minimal linux-2.6.22.10/drivers/infiniband/hw/ipath/ipath_user_pages.c linux-2.6.22.10-vs2.3.0.29/drivers/infiniband/hw/ipath/ipath_user_pages.c
--- linux-2.6.22.10/drivers/infiniband/hw/ipath/ipath_user_pages.c      2007-02-06 03:00:37 +0100
+++ linux-2.6.22.10-vs2.3.0.29/drivers/infiniband/hw/ipath/ipath_user_pages.c   2007-08-05 20:53:12 +0200
@@ -33,6 +33,7 @@
 
 #include <linux/mm.h>
 #include <linux/device.h>
+#include <linux/vs_memory.h>
 
 #include "ipath_kernel.h"
 
@@ -61,7 +62,8 @@ static int __get_user_pages(unsigned lon
        lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur >>
                PAGE_SHIFT;
 
-       if (num_pages > lock_limit) {
+       if (num_pages > lock_limit ||
+               !vx_vmlocked_avail(current->mm, num_pages)) {
                ret = -ENOMEM;
                goto bail;
        }
@@ -78,7 +80,7 @@ static int __get_user_pages(unsigned lon
                        goto bail_release;
        }
 
-       current->mm->locked_vm += num_pages;
+       vx_vmlocked_add(current->mm, num_pages);
 
        ret = 0;
        goto bail;
@@ -203,7 +205,7 @@ void ipath_release_user_pages(struct pag
 
        __ipath_release_user_pages(p, num_pages, 1);
 
-       current->mm->locked_vm -= num_pages;
+       vx_vmlocked_sub(current->mm, num_pages);
 
        up_write(&current->mm->mmap_sem);
 }
@@ -220,7 +222,7 @@ static void user_pages_account(struct wo
                container_of(_work, struct ipath_user_pages_work, work);
 
        down_write(&work->mm->mmap_sem);
-       work->mm->locked_vm -= work->num_pages;
+       vx_vmlocked_sub(work->mm, work->num_pages);
        up_write(&work->mm->mmap_sem);
        mmput(work->mm);
        kfree(work);
diff -NurpP --minimal linux-2.6.22.10/drivers/md/dm-ioctl.c linux-2.6.22.10-vs2.3.0.29/drivers/md/dm-ioctl.c
--- linux-2.6.22.10/drivers/md/dm-ioctl.c       2007-05-02 19:24:50 +0200
+++ linux-2.6.22.10-vs2.3.0.29/drivers/md/dm-ioctl.c    2007-08-05 20:53:12 +0200
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/dm-ioctl.h>
 #include <linux/hdreg.h>
+#include <linux/vs_context.h>
 
 #include <asm/uaccess.h>
 
@@ -100,7 +101,8 @@ static struct hash_cell *__get_name_cell
        unsigned int h = hash_str(str);
 
        list_for_each_entry (hc, _name_buckets + h, name_list)
-               if (!strcmp(hc->name, str)) {
+               if (vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT) &&
+                       !strcmp(hc->name, str)) {
                        dm_get(hc->md);
                        return hc;
                }
@@ -114,7 +116,8 @@ static struct hash_cell *__get_uuid_cell
        unsigned int h = hash_str(str);
 
        list_for_each_entry (hc, _uuid_buckets + h, uuid_list)
-               if (!strcmp(hc->uuid, str)) {
+               if (vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT) &&
+                       !strcmp(hc->uuid, str)) {
                        dm_get(hc->md);
                        return hc;
                }
@@ -349,6 +352,9 @@ typedef int (*ioctl_fn)(struct dm_ioctl 
 
 static int remove_all(struct dm_ioctl *param, size_t param_size)
 {
+       if (!vx_check(0, VS_ADMIN))
+               return -EPERM;
+
        dm_hash_remove_all(1);
        param->data_size = 0;
        return 0;
@@ -396,6 +402,8 @@ static int list_devices(struct dm_ioctl 
         */
        for (i = 0; i < NUM_BUCKETS; i++) {
                list_for_each_entry (hc, _name_buckets + i, name_list) {
+                       if (!vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT))
+                               continue;
                        needed += sizeof(struct dm_name_list);
                        needed += strlen(hc->name) + 1;
                        needed += ALIGN_MASK;
@@ -419,6 +427,8 @@ static int list_devices(struct dm_ioctl 
         */
        for (i = 0; i < NUM_BUCKETS; i++) {
                list_for_each_entry (hc, _name_buckets + i, name_list) {
+                       if (!vx_check(dm_get_xid(hc->md), VS_WATCH_P | VS_IDENT))
+                               continue;
                        if (old_nl)
                                old_nl->next = (uint32_t) ((void *) nl -
                                                           (void *) old_nl);
@@ -609,10 +619,11 @@ static struct hash_cell *__find_device_h
        if (!md)
                goto out;
 
-       mdptr = dm_get_mdptr(md);
+       if (vx_check(dm_get_xid(md), VS_WATCH_P | VS_IDENT))
+               mdptr = dm_get_mdptr(md);
+
        if (!mdptr)
                dm_put(md);
-
 out:
        return mdptr;
 }
@@ -1409,8 +1420,8 @@ static int ctl_ioctl(struct inode *inode
        ioctl_fn fn = NULL;
        size_t param_size;
 
-       /* only root can play with this */
-       if (!capable(CAP_SYS_ADMIN))
+       /* only root and certain contexts can play with this */
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_ADMIN_MAPPER))
                return -EACCES;
 
        if (_IOC_TYPE(command) != DM_IOCTL)
diff -NurpP --minimal linux-2.6.22.10/drivers/md/dm.c linux-2.6.22.10-vs2.3.0.29/drivers/md/dm.c
--- linux-2.6.22.10/drivers/md/dm.c     2007-10-30 01:57:13 +0100
+++ linux-2.6.22.10-vs2.3.0.29/drivers/md/dm.c  2007-08-11 22:41:50 +0200
@@ -21,6 +21,7 @@
 #include <linux/hdreg.h>
 #include <linux/blktrace_api.h>
 #include <linux/smp_lock.h>
+#include <linux/vs_base.h>
 
 #define DM_MSG_PREFIX "core"
 
@@ -77,6 +78,7 @@ struct mapped_device {
        rwlock_t map_lock;
        atomic_t holders;
        atomic_t open_count;
+       xid_t xid;
 
        unsigned long flags;
 
@@ -223,6 +225,7 @@ static void __exit dm_exit(void)
 static int dm_blk_open(struct inode *inode, struct file *file)
 {
        struct mapped_device *md;
+       int ret = -ENXIO;
 
        spin_lock(&_minor_lock);
 
@@ -231,18 +234,19 @@ static int dm_blk_open(struct inode *ino
                goto out;
 
        if (test_bit(DMF_FREEING, &md->flags) ||
-           test_bit(DMF_DELETING, &md->flags)) {
-               md = NULL;
+           test_bit(DMF_DELETING, &md->flags))
+               goto out;
+
+       ret = -EACCES;
+       if (!vx_check(md->xid, VS_IDENT|VS_HOSTID))
                goto out;
-       }
 
        dm_get(md);
        atomic_inc(&md->open_count);
-
+       ret = 0;
 out:
        spin_unlock(&_minor_lock);
-
-       return md ? 0 : -ENXIO;
+       return ret;
 }
 
 static int dm_blk_close(struct inode *inode, struct file *file)
@@ -438,6 +442,14 @@ int dm_set_geometry(struct mapped_device
        return 0;
 }
 
+/*
+ * Get the xid associated with a dm device
+ */
+xid_t dm_get_xid(struct mapped_device *md)
+{
+       return md->xid;
+}
+
 /*-----------------------------------------------------------------
  * CRUD START:
  *   A more elegant soln is in the works that uses the queue
@@ -1000,6 +1012,7 @@ static struct mapped_device *alloc_dev(i
        atomic_set(&md->holders, 1);
        atomic_set(&md->open_count, 0);
        atomic_set(&md->event_nr, 0);
+       md->xid = vx_current_xid();
 
        md->queue = blk_alloc_queue(GFP_KERNEL);
        if (!md->queue)
diff -NurpP --minimal linux-2.6.22.10/drivers/md/dm.h linux-2.6.22.10-vs2.3.0.29/drivers/md/dm.h
--- linux-2.6.22.10/drivers/md/dm.h     2007-02-06 03:00:41 +0100
+++ linux-2.6.22.10-vs2.3.0.29/drivers/md/dm.h  2007-08-05 20:53:12 +0200
@@ -91,6 +91,8 @@ void dm_put_target_type(struct target_ty
 int dm_target_iterate(void (*iter_func)(struct target_type *tt,
                                        void *param), void *param);
 
+xid_t dm_get_xid(struct mapped_device *md);
+
 /*-----------------------------------------------------------------
  * Useful inlines.
  *---------------------------------------------------------------*/
diff -NurpP --minimal linux-2.6.22.10/fs/attr.c linux-2.6.22.10-vs2.3.0.29/fs/attr.c
--- linux-2.6.22.10/fs/attr.c   2007-07-09 13:19:22 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/attr.c        2007-10-25 17:05:55 +0200
@@ -14,6 +14,9 @@
 #include <linux/fcntl.h>
 #include <linux/quotaops.h>
 #include <linux/security.h>
+#include <linux/proc_fs.h>
+#include <linux/devpts_fs.h>
+#include <linux/vs_base.h>
 
 /* Taken over from the old code... */
 
@@ -55,6 +58,27 @@ int inode_change_ok(struct inode *inode,
                if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
                        goto error;
        }
+
+       /* Check for evil vserver activity */
+       if (vx_check(0, VS_ADMIN))
+               goto fine;
+
+       if (IS_BARRIER(inode)) {
+               vxwprintk_task(1, "messing with the barrier.");
+               goto error;
+       }
+       switch (inode->i_sb->s_magic) {
+               case PROC_SUPER_MAGIC:
+                       /* maybe allow that in the future? */
+                       vxwprintk_task(1, "messing with the procfs.");
+                       goto error;
+               case DEVPTS_SUPER_MAGIC:
+                       /* devpts is xid tagged */
+                       if (vx_check((xid_t)inode->i_tag, VS_IDENT))
+                               goto fine;
+                       vxwprintk_task(1, "messing with the devpts.");
+                       goto error;
+       }
 fine:
        retval = 0;
 error:
@@ -78,6 +102,8 @@ int inode_setattr(struct inode * inode, 
                inode->i_uid = attr->ia_uid;
        if (ia_valid & ATTR_GID)
                inode->i_gid = attr->ia_gid;
+       if ((ia_valid & ATTR_TAG) && IS_TAGGED(inode))
+               inode->i_tag = attr->ia_tag;
        if (ia_valid & ATTR_ATIME)
                inode->i_atime = timespec_trunc(attr->ia_atime,
                                                inode->i_sb->s_time_gran);
@@ -152,7 +178,8 @@ int notify_change(struct dentry * dentry
                        error = security_inode_setattr(dentry, attr);
                if (!error) {
                        if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
-                           (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid))
+                           (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
+                           (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag))
                                error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
                        if (!error)
                                error = inode_setattr(inode, attr);
diff -NurpP --minimal linux-2.6.22.10/fs/binfmt_aout.c linux-2.6.22.10-vs2.3.0.29/fs/binfmt_aout.c
--- linux-2.6.22.10/fs/binfmt_aout.c    2007-02-06 03:01:16 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/binfmt_aout.c 2007-08-05 20:53:12 +0200
@@ -24,6 +24,7 @@
 #include <linux/binfmts.h>
 #include <linux/personality.h>
 #include <linux/init.h>
+#include <linux/vs_memory.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
diff -NurpP --minimal linux-2.6.22.10/fs/binfmt_elf.c linux-2.6.22.10-vs2.3.0.29/fs/binfmt_elf.c
--- linux-2.6.22.10/fs/binfmt_elf.c     2007-07-09 13:19:22 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/binfmt_elf.c  2007-08-05 20:53:12 +0200
@@ -39,6 +39,7 @@
 #include <linux/random.h>
 #include <linux/elf.h>
 #include <linux/utsname.h>
+#include <linux/vs_memory.h>
 #include <asm/uaccess.h>
 #include <asm/param.h>
 #include <asm/page.h>
diff -NurpP --minimal linux-2.6.22.10/fs/binfmt_flat.c linux-2.6.22.10-vs2.3.0.29/fs/binfmt_flat.c
--- linux-2.6.22.10/fs/binfmt_flat.c    2007-07-09 13:19:22 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/binfmt_flat.c 2007-08-05 20:53:12 +0200
@@ -36,6 +36,7 @@
 #include <linux/init.h>
 #include <linux/flat.h>
 #include <linux/syscalls.h>
+#include <linux/vs_memory.h>
 
 #include <asm/byteorder.h>
 #include <asm/system.h>
diff -NurpP --minimal linux-2.6.22.10/fs/binfmt_som.c linux-2.6.22.10-vs2.3.0.29/fs/binfmt_som.c
--- linux-2.6.22.10/fs/binfmt_som.c     2006-11-30 21:19:19 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/binfmt_som.c  2007-08-05 20:53:12 +0200
@@ -28,6 +28,7 @@
 #include <linux/shm.h>
 #include <linux/personality.h>
 #include <linux/init.h>
+#include <linux/vs_memory.h>
 
 #include <asm/a.out.h>
 #include <asm/uaccess.h>
diff -NurpP --minimal linux-2.6.22.10/fs/block_dev.c linux-2.6.22.10-vs2.3.0.29/fs/block_dev.c
--- linux-2.6.22.10/fs/block_dev.c      2007-07-09 13:19:22 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/block_dev.c   2007-10-11 01:10:22 +0200
@@ -23,6 +23,7 @@
 #include <linux/uio.h>
 #include <linux/namei.h>
 #include <linux/log2.h>
+#include <linux/vs_device.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 
@@ -572,6 +573,7 @@ struct block_device *bdget(dev_t dev)
                bdev->bd_invalidated = 0;
                inode->i_mode = S_IFBLK;
                inode->i_rdev = dev;
+               inode->i_mdev = dev;
                inode->i_bdev = bdev;
                inode->i_data.a_ops = &def_blk_aops;
                mapping_set_gfp_mask(&inode->i_data, GFP_USER);
@@ -610,6 +612,11 @@ EXPORT_SYMBOL(bdput);
 static struct block_device *bd_acquire(struct inode *inode)
 {
        struct block_device *bdev;
+       dev_t mdev;
+
+       if (!vs_map_blkdev(inode->i_rdev, &mdev, DATTR_OPEN))
+               return NULL;
+       inode->i_mdev = mdev;
 
        spin_lock(&bdev_lock);
        bdev = inode->i_bdev;
@@ -620,7 +627,7 @@ static struct block_device *bd_acquire(s
        }
        spin_unlock(&bdev_lock);
 
-       bdev = bdget(inode->i_rdev);
+       bdev = bdget(mdev);
        if (bdev) {
                spin_lock(&bdev_lock);
                if (!inode->i_bdev) {
diff -NurpP --minimal linux-2.6.22.10/fs/char_dev.c linux-2.6.22.10-vs2.3.0.29/fs/char_dev.c
--- linux-2.6.22.10/fs/char_dev.c       2007-05-02 19:25:16 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/char_dev.c    2007-10-11 01:10:22 +0200
@@ -21,6 +21,7 @@
 #include <linux/cdev.h>
 #include <linux/mutex.h>
 #include <linux/backing-dev.h>
+#include <linux/vs_device.h>
 
 #ifdef CONFIG_KMOD
 #include <linux/kmod.h>
@@ -363,14 +364,21 @@ int chrdev_open(struct inode * inode, st
        struct cdev *p;
        struct cdev *new = NULL;
        int ret = 0;
+       dev_t mdev;
+
+       if (!vs_map_chrdev(inode->i_rdev, &mdev, DATTR_OPEN))
+               return -EPERM;
+       inode->i_mdev = mdev;
 
        spin_lock(&cdev_lock);
        p = inode->i_cdev;
        if (!p) {
                struct kobject *kobj;
                int idx;
+
                spin_unlock(&cdev_lock);
-               kobj = kobj_lookup(cdev_map, inode->i_rdev, &idx);
+
+               kobj = kobj_lookup(cdev_map, mdev, &idx);
                if (!kobj)
                        return -ENXIO;
                new = container_of(kobj, struct cdev, kobj);
diff -NurpP --minimal linux-2.6.22.10/fs/dcache.c linux-2.6.22.10-vs2.3.0.29/fs/dcache.c
--- linux-2.6.22.10/fs/dcache.c 2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/dcache.c      2007-08-05 20:53:12 +0200
@@ -31,6 +31,7 @@
 #include <linux/seqlock.h>
 #include <linux/swap.h>
 #include <linux/bootmem.h>
+#include <linux/vs_limit.h>
 #include "internal.h"
 
 
@@ -176,6 +177,7 @@ void dput(struct dentry *dentry)
        if (!dentry)
                return;
 
+       vx_dentry_dec(dentry);
 repeat:
        if (atomic_read(&dentry->d_count) == 1)
                might_sleep();
@@ -189,6 +191,8 @@ repeat:
                return;
        }
 
+       vx_dentry_dec(dentry);
+
        /*
         * AV: ->d_delete() is _NOT_ allowed to block now.
         */
@@ -288,6 +292,7 @@ static inline struct dentry * __dget_loc
        if (!list_empty(&dentry->d_lru)) {
                dentry_stat.nr_unused--;
                list_del_init(&dentry->d_lru);
+               vx_dentry_inc(dentry);
        }
        return dentry;
 }
@@ -898,6 +903,9 @@ struct dentry *d_alloc(struct dentry * p
        struct dentry *dentry;
        char *dname;
 
+       if (!vx_dentry_avail(1))
+               return NULL;
+
        dentry = kmem_cache_alloc(dentry_cache, GFP_KERNEL); 
        if (!dentry)
                return NULL;
@@ -946,6 +954,7 @@ struct dentry *d_alloc(struct dentry * p
        if (parent)
                list_add(&dentry->d_u.d_child, &parent->d_subdirs);
        dentry_stat.nr_dentry++;
+       vx_dentry_inc(dentry);
        spin_unlock(&dcache_lock);
 
        return dentry;
@@ -1295,6 +1304,7 @@ struct dentry * __d_lookup(struct dentry
 
                if (!d_unhashed(dentry)) {
                        atomic_inc(&dentry->d_count);
+                       vx_dentry_inc(dentry);
                        found = dentry;
                }
                spin_unlock(&dentry->d_lock);
diff -NurpP --minimal linux-2.6.22.10/fs/devpts/inode.c linux-2.6.22.10-vs2.3.0.29/fs/devpts/inode.c
--- linux-2.6.22.10/fs/devpts/inode.c   2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/devpts/inode.c        2007-10-18 00:59:53 +0200
@@ -17,11 +17,26 @@
 #include <linux/namei.h>
 #include <linux/mount.h>
 #include <linux/tty.h>
+#include <linux/magic.h>
 #include <linux/devpts_fs.h>
 #include <linux/parser.h>
 #include <linux/fsnotify.h>
+#include <linux/vs_base.h>
 
-#define DEVPTS_SUPER_MAGIC 0x1cd1
+
+static int devpts_permission(struct inode *inode, int mask, struct nameidata *nd)
+{
+       int ret = -EACCES;
+
+       /* devpts is xid tagged */
+       if (vx_check((xid_t)inode->i_tag, VS_WATCH_P | VS_IDENT))
+               ret = generic_permission(inode, mask, NULL);
+       return ret;
+}
+
+static struct inode_operations devpts_file_inode_operations = {
+       .permission     = devpts_permission,
+};
 
 static struct vfsmount *devpts_mnt;
 static struct dentry *devpts_root;
@@ -92,6 +107,25 @@ static int devpts_remount(struct super_b
        return 0;
 }
 
+static int devpts_filter(struct dentry *de)
+{
+       /* devpts is xid tagged */
+       return vx_check((xid_t)de->d_inode->i_tag, VS_WATCH_P | VS_IDENT);
+}
+
+static int devpts_readdir(struct file * filp, void * dirent, filldir_t filldir)
+{
+       return dcache_readdir_filter(filp, dirent, filldir, devpts_filter);
+}
+
+static struct file_operations devpts_dir_operations = {
+       .open           = dcache_dir_open,
+       .release        = dcache_dir_close,
+       .llseek         = dcache_dir_lseek,
+       .read           = generic_read_dir,
+       .readdir        = devpts_readdir,
+};
+
 static const struct super_operations devpts_sops = {
        .statfs         = simple_statfs,
        .remount_fs     = devpts_remount,
@@ -117,8 +151,10 @@ devpts_fill_super(struct super_block *s,
        inode->i_uid = inode->i_gid = 0;
        inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
        inode->i_op = &simple_dir_inode_operations;
-       inode->i_fop = &simple_dir_operations;
+       inode->i_fop = &devpts_dir_operations;
        inode->i_nlink = 2;
+       /* devpts is xid tagged */
+       inode->i_tag = (tag_t)vx_current_xid();
 
        devpts_root = s->s_root = d_alloc_root(inode);
        if (s->s_root)
@@ -176,6 +212,9 @@ int devpts_pty_new(struct tty_struct *tt
        inode->i_gid = config.setgid ? config.gid : current->fsgid;
        inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
        init_special_inode(inode, S_IFCHR|config.mode, device);
+       /* devpts is xid tagged */
+       inode->i_tag = (tag_t)vx_current_xid();
+       inode->i_op = &devpts_file_inode_operations;
        inode->i_private = tty;
 
        dentry = get_node(number);
diff -NurpP --minimal linux-2.6.22.10/fs/ecryptfs/inode.c linux-2.6.22.10-vs2.3.0.29/fs/ecryptfs/inode.c
--- linux-2.6.22.10/fs/ecryptfs/inode.c 2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/ecryptfs/inode.c      2007-08-11 22:41:51 +0200
@@ -423,7 +423,7 @@ static int ecryptfs_link(struct dentry *
        dget(lower_new_dentry);
        lower_dir_dentry = lock_parent(lower_new_dentry);
        rc = vfs_link(lower_old_dentry, lower_dir_dentry->d_inode,
-                     lower_new_dentry);
+                     lower_new_dentry, NULL);
        if (rc || !lower_new_dentry->d_inode)
                goto out_lock;
        rc = ecryptfs_interpose(lower_new_dentry, new_dentry, dir->i_sb, 0);
@@ -451,7 +451,7 @@ static int ecryptfs_unlink(struct inode 
        struct inode *lower_dir_inode = ecryptfs_inode_to_lower(dir);
 
        lock_parent(lower_dentry);
-       rc = vfs_unlink(lower_dir_inode, lower_dentry);
+       rc = vfs_unlink(lower_dir_inode, lower_dentry, NULL);
        if (rc) {
                printk(KERN_ERR "Error in vfs_unlink; rc = [%d]\n", rc);
                goto out_unlock;
@@ -488,7 +488,7 @@ static int ecryptfs_symlink(struct inode
                goto out_lock;
        }
        rc = vfs_symlink(lower_dir_dentry->d_inode, lower_dentry,
-                        encoded_symname, mode);
+                        encoded_symname, mode, NULL);
        kfree(encoded_symname);
        if (rc || !lower_dentry->d_inode)
                goto out_lock;
@@ -513,7 +513,7 @@ static int ecryptfs_mkdir(struct inode *
 
        lower_dentry = ecryptfs_dentry_to_lower(dentry);
        lower_dir_dentry = lock_parent(lower_dentry);
-       rc = vfs_mkdir(lower_dir_dentry->d_inode, lower_dentry, mode);
+       rc = vfs_mkdir(lower_dir_dentry->d_inode, lower_dentry, mode, NULL);
        if (rc || !lower_dentry->d_inode)
                goto out;
        rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb, 0);
@@ -539,7 +539,7 @@ static int ecryptfs_rmdir(struct inode *
        dget(dentry);
        lower_dir_dentry = lock_parent(lower_dentry);
        dget(lower_dentry);
-       rc = vfs_rmdir(lower_dir_dentry->d_inode, lower_dentry);
+       rc = vfs_rmdir(lower_dir_dentry->d_inode, lower_dentry, NULL);
        dput(lower_dentry);
        if (!rc)
                d_delete(lower_dentry);
@@ -561,7 +561,7 @@ ecryptfs_mknod(struct inode *dir, struct
 
        lower_dentry = ecryptfs_dentry_to_lower(dentry);
        lower_dir_dentry = lock_parent(lower_dentry);
-       rc = vfs_mknod(lower_dir_dentry->d_inode, lower_dentry, mode, dev);
+       rc = vfs_mknod(lower_dir_dentry->d_inode, lower_dentry, mode, dev, NULL);
        if (rc || !lower_dentry->d_inode)
                goto out;
        rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb, 0);
diff -NurpP --minimal linux-2.6.22.10/fs/exec.c linux-2.6.22.10-vs2.3.0.29/fs/exec.c
--- linux-2.6.22.10/fs/exec.c   2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/exec.c        2007-10-04 23:47:06 +0200
@@ -51,6 +51,7 @@
 #include <linux/cn_proc.h>
 #include <linux/audit.h>
 #include <linux/signalfd.h>
+#include <linux/vs_memory.h>
 
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
@@ -440,7 +441,8 @@ int setup_arg_pages(struct linux_binprm 
                        kmem_cache_free(vm_area_cachep, mpnt);
                        return ret;
                }
-               mm->stack_vm = mm->total_vm = vma_pages(mpnt);
+               vx_vmpages_sub(mm, mm->total_vm - vma_pages(mpnt));
+               mm->stack_vm = mm->total_vm;
        }
 
        for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
@@ -1336,7 +1338,7 @@ static int format_corename(char *corenam
                        /* UNIX time of coredump */
                        case 't': {
                                struct timeval tv;
-                               do_gettimeofday(&tv);
+                               vx_gettimeofday(&tv);
                                rc = snprintf(out_ptr, out_end - out_ptr,
                                              "%lu", tv.tv_sec);
                                if (rc > out_end - out_ptr)
diff -NurpP --minimal linux-2.6.22.10/fs/ext2/balloc.c linux-2.6.22.10-vs2.3.0.29/fs/ext2/balloc.c
--- linux-2.6.22.10/fs/ext2/balloc.c    2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext2/balloc.c 2007-08-05 20:53:12 +0200
@@ -16,6 +16,8 @@
 #include <linux/sched.h>
 #include <linux/buffer_head.h>
 #include <linux/capability.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vs_tag.h>
 
 /*
  * balloc.c contains the blocks allocation and deallocation routines
@@ -102,12 +104,13 @@ static int reserve_blocks(struct super_b
 {
        struct ext2_sb_info *sbi = EXT2_SB(sb);
        struct ext2_super_block *es = sbi->s_es;
-       unsigned free_blocks;
-       unsigned root_blocks;
+       unsigned long long free_blocks, root_blocks;
 
        free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
        root_blocks = le32_to_cpu(es->s_r_blocks_count);
 
+       DLIMIT_ADJUST_BLOCK(sb, dx_current_tag(), &free_blocks, &root_blocks);
+
        if (free_blocks < count)
                count = free_blocks;
 
@@ -258,6 +261,7 @@ do_more:
        }
 error_return:
        brelse(bitmap_bh);
+       DLIMIT_FREE_BLOCK(inode, freed);
        release_blocks(sb, freed);
        DQUOT_FREE_BLOCK(inode, freed);
 }
@@ -361,6 +365,10 @@ int ext2_new_block(struct inode *inode, 
                *err = -ENOSPC;
                goto out_dquot;
        }
+       if (DLIMIT_ALLOC_BLOCK(inode, es_alloc)) {
+               *err = -ENOSPC;
+               goto out_dlimit;
+       }
 
        ext2_debug ("goal=%lu.\n", goal);
 
@@ -508,6 +516,8 @@ got_block:
        *err = 0;
 out_release:
        group_release_blocks(sb, group_no, desc, gdp_bh, group_alloc);
+       DLIMIT_FREE_BLOCK(inode, es_alloc);
+out_dlimit:
        release_blocks(sb, es_alloc);
 out_dquot:
        DQUOT_FREE_BLOCK(inode, dq_alloc);
diff -NurpP --minimal linux-2.6.22.10/fs/ext2/ext2.h linux-2.6.22.10-vs2.3.0.29/fs/ext2/ext2.h
--- linux-2.6.22.10/fs/ext2/ext2.h      2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext2/ext2.h   2007-08-05 20:53:12 +0200
@@ -167,6 +167,7 @@ extern const struct file_operations ext2
 extern const struct address_space_operations ext2_aops;
 extern const struct address_space_operations ext2_aops_xip;
 extern const struct address_space_operations ext2_nobh_aops;
+extern int ext2_sync_flags(struct inode *inode);
 
 /* namei.c */
 extern const struct inode_operations ext2_dir_inode_operations;
diff -NurpP --minimal linux-2.6.22.10/fs/ext2/file.c linux-2.6.22.10-vs2.3.0.29/fs/ext2/file.c
--- linux-2.6.22.10/fs/ext2/file.c      2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext2/file.c   2007-09-12 20:04:16 +0200
@@ -85,4 +85,5 @@ const struct inode_operations ext2_file_
 #endif
        .setattr        = ext2_setattr,
        .permission     = ext2_permission,
+       .sync_flags     = ext2_sync_flags,
 };
diff -NurpP --minimal linux-2.6.22.10/fs/ext2/ialloc.c linux-2.6.22.10-vs2.3.0.29/fs/ext2/ialloc.c
--- linux-2.6.22.10/fs/ext2/ialloc.c    2006-11-30 21:19:19 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext2/ialloc.c 2007-08-05 20:53:12 +0200
@@ -17,6 +17,8 @@
 #include <linux/backing-dev.h>
 #include <linux/buffer_head.h>
 #include <linux/random.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vs_tag.h>
 #include "ext2.h"
 #include "xattr.h"
 #include "acl.h"
@@ -125,6 +127,7 @@ void ext2_free_inode (struct inode * ino
                ext2_xattr_delete_inode(inode);
                DQUOT_FREE_INODE(inode);
                DQUOT_DROP(inode);
+               DLIMIT_FREE_INODE(inode);
        }
 
        es = EXT2_SB(sb)->s_es;
@@ -464,6 +467,11 @@ struct inode *ext2_new_inode(struct inod
        if (!inode)
                return ERR_PTR(-ENOMEM);
 
+       inode->i_tag = dx_current_fstag(sb);
+       if (DLIMIT_ALLOC_INODE(inode)) {
+               err = -ENOSPC;
+               goto fail_dlim;
+       }
        ei = EXT2_I(inode);
        sbi = EXT2_SB(sb);
        es = sbi->s_es;
@@ -577,7 +585,8 @@ got:
        inode->i_blocks = 0;
        inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
        memset(ei->i_data, 0, sizeof(ei->i_data));
-       ei->i_flags = EXT2_I(dir)->i_flags & ~EXT2_BTREE_FL;
+       ei->i_flags = EXT2_I(dir)->i_flags &
+               ~(EXT2_BTREE_FL|EXT2_IUNLINK_FL|EXT2_BARRIER_FL);
        if (S_ISLNK(mode))
                ei->i_flags &= ~(EXT2_IMMUTABLE_FL|EXT2_APPEND_FL);
        /* dirsync is only applied to directories */
@@ -625,12 +634,15 @@ fail_free_drop:
 
 fail_drop:
        DQUOT_DROP(inode);
+       DLIMIT_FREE_INODE(inode);
        inode->i_flags |= S_NOQUOTA;
        inode->i_nlink = 0;
        iput(inode);
        return ERR_PTR(err);
 
 fail:
+       DLIMIT_FREE_INODE(inode);
+fail_dlim:
        make_bad_inode(inode);
        iput(inode);
        return ERR_PTR(err);
diff -NurpP --minimal linux-2.6.22.10/fs/ext2/inode.c linux-2.6.22.10-vs2.3.0.29/fs/ext2/inode.c
--- linux-2.6.22.10/fs/ext2/inode.c     2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext2/inode.c  2007-08-18 02:52:34 +0200
@@ -31,6 +31,7 @@
 #include <linux/writeback.h>
 #include <linux/buffer_head.h>
 #include <linux/mpage.h>
+#include <linux/vs_tag.h>
 #include "ext2.h"
 #include "acl.h"
 #include "xip.h"
@@ -913,7 +914,7 @@ void ext2_truncate (struct inode * inode
                return;
        if (ext2_inode_is_fast_symlink(inode))
                return;
-       if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+       if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
                return;
 
        ext2_discard_prealloc(inode);
@@ -1042,13 +1043,20 @@ void ext2_set_inode_flags(struct inode *
 {
        unsigned int flags = EXT2_I(inode)->i_flags;
 
-       inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
+       inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER |
+               S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+       if (flags & EXT2_IMMUTABLE_FL)
+               inode->i_flags |= S_IMMUTABLE;
+       if (flags & EXT2_IUNLINK_FL)
+               inode->i_flags |= S_IUNLINK;
+       if (flags & EXT2_BARRIER_FL)
+               inode->i_flags |= S_BARRIER;
+
        if (flags & EXT2_SYNC_FL)
                inode->i_flags |= S_SYNC;
        if (flags & EXT2_APPEND_FL)
                inode->i_flags |= S_APPEND;
-       if (flags & EXT2_IMMUTABLE_FL)
-               inode->i_flags |= S_IMMUTABLE;
        if (flags & EXT2_NOATIME_FL)
                inode->i_flags |= S_NOATIME;
        if (flags & EXT2_DIRSYNC_FL)
@@ -1074,12 +1082,37 @@ void ext2_get_inode_flags(struct ext2_in
                ei->i_flags |= EXT2_DIRSYNC_FL;
 }
 
+int ext2_sync_flags(struct inode *inode)
+{
+       unsigned int oldflags, newflags;
+
+       oldflags = EXT2_I(inode)->i_flags;
+       newflags = oldflags & ~(EXT2_IMMUTABLE_FL |
+               EXT2_IUNLINK_FL | EXT2_BARRIER_FL);
+
+       if (IS_IMMUTABLE(inode))
+               newflags |= EXT2_IMMUTABLE_FL;
+       if (IS_IUNLINK(inode))
+               newflags |= EXT2_IUNLINK_FL;
+       if (IS_BARRIER(inode))
+               newflags |= EXT2_BARRIER_FL;
+
+       if (oldflags ^ newflags) {
+               EXT2_I(inode)->i_flags = newflags;
+               inode->i_ctime = CURRENT_TIME;
+               mark_inode_dirty(inode);
+       }
+       return 0;
+}
+
 void ext2_read_inode (struct inode * inode)
 {
        struct ext2_inode_info *ei = EXT2_I(inode);
        ino_t ino = inode->i_ino;
        struct buffer_head * bh;
        struct ext2_inode * raw_inode = ext2_get_inode(inode->i_sb, ino, &bh);
+       uid_t uid;
+       gid_t gid;
        int n;
 
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
@@ -1090,12 +1123,17 @@ void ext2_read_inode (struct inode * ino
                goto bad_inode;
 
        inode->i_mode = le16_to_cpu(raw_inode->i_mode);
-       inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
-       inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+       uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+       gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
        if (!(test_opt (inode->i_sb, NO_UID32))) {
-               inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
-               inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+               uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+               gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
        }
+       inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
+       inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
+       inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
+               le16_to_cpu(raw_inode->i_raw_tag));
+
        inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
        inode->i_size = le32_to_cpu(raw_inode->i_size);
        inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
@@ -1192,8 +1230,8 @@ static int ext2_update_inode(struct inod
        struct ext2_inode_info *ei = EXT2_I(inode);
        struct super_block *sb = inode->i_sb;
        ino_t ino = inode->i_ino;
-       uid_t uid = inode->i_uid;
-       gid_t gid = inode->i_gid;
+       uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
+       gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
        struct buffer_head * bh;
        struct ext2_inode * raw_inode = ext2_get_inode(sb, ino, &bh);
        int n;
@@ -1229,6 +1267,9 @@ static int ext2_update_inode(struct inod
                raw_inode->i_uid_high = 0;
                raw_inode->i_gid_high = 0;
        }
+#ifdef CONFIG_TAGGING_INTERN
+       raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag);
+#endif
        raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
        raw_inode->i_size = cpu_to_le32(inode->i_size);
        raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
@@ -1315,7 +1356,8 @@ int ext2_setattr(struct dentry *dentry, 
        if (error)
                return error;
        if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
-           (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
+           (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) ||
+           (iattr->ia_valid & ATTR_TAG && iattr->ia_tag != inode->i_tag)) {
                error = DQUOT_TRANSFER(inode, iattr) ? -EDQUOT : 0;
                if (error)
                        return error;
diff -NurpP --minimal linux-2.6.22.10/fs/ext2/ioctl.c linux-2.6.22.10-vs2.3.0.29/fs/ext2/ioctl.c
--- linux-2.6.22.10/fs/ext2/ioctl.c     2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext2/ioctl.c  2007-08-05 20:53:12 +0200
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/compat.h>
 #include <linux/smp_lock.h>
+#include <linux/mount.h>
 #include <asm/current.h>
 #include <asm/uaccess.h>
 
@@ -33,7 +34,8 @@ int ext2_ioctl (struct inode * inode, st
        case EXT2_IOC_SETFLAGS: {
                unsigned int oldflags;
 
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
@@ -54,7 +56,9 @@ int ext2_ioctl (struct inode * inode, st
                 *
                 * This test looks nicer. Thanks to Pauline Middelink
                 */
-               if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) {
+               if ((oldflags & EXT2_IMMUTABLE_FL) ||
+                       ((flags ^ oldflags) & (EXT2_APPEND_FL |
+                       EXT2_IMMUTABLE_FL | EXT2_IUNLINK_FL))) {
                        if (!capable(CAP_LINUX_IMMUTABLE)) {
                                mutex_unlock(&inode->i_mutex);
                                return -EPERM;
@@ -76,7 +80,8 @@ int ext2_ioctl (struct inode * inode, st
        case EXT2_IOC_SETVERSION:
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
                        return -EPERM;
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
                if (get_user(inode->i_generation, (int __user *) arg))
                        return -EFAULT; 
diff -NurpP --minimal linux-2.6.22.10/fs/ext2/namei.c linux-2.6.22.10-vs2.3.0.29/fs/ext2/namei.c
--- linux-2.6.22.10/fs/ext2/namei.c     2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext2/namei.c  2007-08-05 20:53:12 +0200
@@ -31,6 +31,7 @@
  */
 
 #include <linux/pagemap.h>
+#include <linux/vs_tag.h>
 #include "ext2.h"
 #include "xattr.h"
 #include "acl.h"
@@ -66,6 +67,7 @@ static struct dentry *ext2_lookup(struct
                inode = iget(dir->i_sb, ino);
                if (!inode)
                        return ERR_PTR(-EACCES);
+               dx_propagate_tag(nd, inode);
        }
        return d_splice_alias(inode, dentry);
 }
@@ -391,6 +393,7 @@ const struct inode_operations ext2_dir_i
 #endif
        .setattr        = ext2_setattr,
        .permission     = ext2_permission,
+       .sync_flags     = ext2_sync_flags,
 };
 
 const struct inode_operations ext2_special_inode_operations = {
@@ -402,4 +405,5 @@ const struct inode_operations ext2_speci
 #endif
        .setattr        = ext2_setattr,
        .permission     = ext2_permission,
+       .sync_flags     = ext2_sync_flags,
 };
diff -NurpP --minimal linux-2.6.22.10/fs/ext2/super.c linux-2.6.22.10-vs2.3.0.29/fs/ext2/super.c
--- linux-2.6.22.10/fs/ext2/super.c     2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext2/super.c  2007-08-05 20:53:12 +0200
@@ -321,7 +321,7 @@ enum {
        Opt_err_ro, Opt_nouid32, Opt_nocheck, Opt_debug,
        Opt_oldalloc, Opt_orlov, Opt_nobh, Opt_user_xattr, Opt_nouser_xattr,
        Opt_acl, Opt_noacl, Opt_xip, Opt_ignore, Opt_err, Opt_quota,
-       Opt_usrquota, Opt_grpquota
+       Opt_usrquota, Opt_grpquota, Opt_tag, Opt_notag, Opt_tagid
 };
 
 static match_table_t tokens = {
@@ -349,6 +349,9 @@ static match_table_t tokens = {
        {Opt_acl, "acl"},
        {Opt_noacl, "noacl"},
        {Opt_xip, "xip"},
+       {Opt_tag, "tag"},
+       {Opt_notag, "notag"},
+       {Opt_tagid, "tagid=%u"},
        {Opt_grpquota, "grpquota"},
        {Opt_ignore, "noquota"},
        {Opt_quota, "quota"},
@@ -417,6 +420,20 @@ static int parse_options (char * options
                case Opt_nouid32:
                        set_opt (sbi->s_mount_opt, NO_UID32);
                        break;
+#ifndef CONFIG_TAGGING_NONE
+               case Opt_tag:
+                       set_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+               case Opt_notag:
+                       clear_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+#endif
+#ifdef CONFIG_PROPAGATE
+               case Opt_tagid:
+                       /* use args[0] */
+                       set_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+#endif
                case Opt_nocheck:
                        clear_opt (sbi->s_mount_opt, CHECK);
                        break;
@@ -727,6 +744,8 @@ static int ext2_fill_super(struct super_
        if (!parse_options ((char *) data, sbi))
                goto failed_mount;
 
+       if (EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_TAGGED)
+               sb->s_flags |= MS_TAGGED;
        sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
                ((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ?
                 MS_POSIXACL : 0);
@@ -1035,6 +1054,13 @@ static int ext2_remount (struct super_bl
                goto restore_opts;
        }
 
+       if ((sbi->s_mount_opt & EXT2_MOUNT_TAGGED) &&
+               !(sb->s_flags & MS_TAGGED)) {
+               printk("EXT2-fs: %s: tagging not permitted on remount.\n",
+                      sb->s_id);
+               return -EINVAL;
+       }
+
        sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
                ((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
 
diff -NurpP --minimal linux-2.6.22.10/fs/ext2/symlink.c linux-2.6.22.10-vs2.3.0.29/fs/ext2/symlink.c
--- linux-2.6.22.10/fs/ext2/symlink.c   2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext2/symlink.c        2007-08-05 20:53:12 +0200
@@ -38,6 +38,7 @@ const struct inode_operations ext2_symli
        .listxattr      = ext2_listxattr,
        .removexattr    = generic_removexattr,
 #endif
+       .sync_flags     = ext2_sync_flags,
 };
  
 const struct inode_operations ext2_fast_symlink_inode_operations = {
@@ -49,4 +50,5 @@ const struct inode_operations ext2_fast_
        .listxattr      = ext2_listxattr,
        .removexattr    = generic_removexattr,
 #endif
+       .sync_flags     = ext2_sync_flags,
 };
diff -NurpP --minimal linux-2.6.22.10/fs/ext2/xattr.c linux-2.6.22.10-vs2.3.0.29/fs/ext2/xattr.c
--- linux-2.6.22.10/fs/ext2/xattr.c     2007-02-06 03:01:18 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext2/xattr.c  2007-08-05 20:53:12 +0200
@@ -60,6 +60,7 @@
 #include <linux/mbcache.h>
 #include <linux/quotaops.h>
 #include <linux/rwsem.h>
+#include <linux/vs_dlimit.h>
 #include "ext2.h"
 #include "xattr.h"
 #include "acl.h"
@@ -641,8 +642,12 @@ ext2_xattr_set2(struct inode *inode, str
                                   the inode.  */
                                ea_bdebug(new_bh, "reusing block");
 
+                               error = -ENOSPC;
+                               if (DLIMIT_ALLOC_BLOCK(inode, 1))
+                                       goto cleanup;
                                error = -EDQUOT;
                                if (DQUOT_ALLOC_BLOCK(inode, 1)) {
+                                       DLIMIT_FREE_BLOCK(inode, 1);
                                        unlock_buffer(new_bh);
                                        goto cleanup;
                                }
@@ -736,6 +741,7 @@ ext2_xattr_set2(struct inode *inode, str
                                le32_to_cpu(HDR(old_bh)->h_refcount) - 1);
                        if (ce)
                                mb_cache_entry_release(ce);
+                       DLIMIT_FREE_BLOCK(inode, 1);
                        DQUOT_FREE_BLOCK(inode, 1);
                        mark_buffer_dirty(old_bh);
                        ea_bdebug(old_bh, "refcount now=%d",
@@ -800,6 +806,7 @@ ext2_xattr_delete_inode(struct inode *in
                mark_buffer_dirty(bh);
                if (IS_SYNC(inode))
                        sync_dirty_buffer(bh);
+               DLIMIT_FREE_BLOCK(inode, 1);
                DQUOT_FREE_BLOCK(inode, 1);
        }
        EXT2_I(inode)->i_file_acl = 0;
diff -NurpP --minimal linux-2.6.22.10/fs/ext3/balloc.c linux-2.6.22.10-vs2.3.0.29/fs/ext3/balloc.c
--- linux-2.6.22.10/fs/ext3/balloc.c    2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext3/balloc.c 2007-08-05 20:53:12 +0200
@@ -19,6 +19,8 @@
 #include <linux/ext3_jbd.h>
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vs_tag.h>
 
 /*
  * balloc.c contains the blocks allocation and deallocation routines
@@ -613,8 +615,10 @@ void ext3_free_blocks(handle_t *handle, 
                return;
        }
        ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
-       if (dquot_freed_blocks)
+       if (dquot_freed_blocks) {
+               DLIMIT_FREE_BLOCK(inode, dquot_freed_blocks);
                DQUOT_FREE_BLOCK(inode, dquot_freed_blocks);
+       }
        return;
 }
 
@@ -1353,18 +1357,33 @@ out:
  *
  * Check if filesystem has at least 1 free block available for allocation.
  */
-static int ext3_has_free_blocks(struct ext3_sb_info *sbi)
+static int ext3_has_free_blocks(struct super_block *sb)
 {
-       ext3_fsblk_t free_blocks, root_blocks;
+       struct ext3_sb_info *sbi = EXT3_SB(sb);
+       unsigned long long free_blocks, root_blocks;
+       int cond;
 
        free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
        root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
-       if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
+
+       vxdprintk(VXD_CBIT(dlim, 3),
+               "ext3_has_free_blocks(%p): free=%llu, root=%llu",
+               sb, free_blocks, root_blocks);
+
+       DLIMIT_ADJUST_BLOCK(sb, dx_current_tag(), &free_blocks, &root_blocks);
+
+       cond = (free_blocks < root_blocks + 1 &&
+               !capable(CAP_SYS_RESOURCE) &&
                sbi->s_resuid != current->fsuid &&
-               (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
-               return 0;
-       }
-       return 1;
+               (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid)));
+
+       vxdprintk(VXD_CBIT(dlim, 3),
+               "ext3_has_free_blocks(%p): %llu<%llu+1, %c, %u!=%u r=%d",
+               sb, free_blocks, root_blocks,
+               !capable(CAP_SYS_RESOURCE)?'1':'0',
+               sbi->s_resuid, current->fsuid, cond?0:1);
+
+       return (cond ? 0 : 1);
 }
 
 /**
@@ -1381,7 +1400,7 @@ static int ext3_has_free_blocks(struct e
  */
 int ext3_should_retry_alloc(struct super_block *sb, int *retries)
 {
-       if (!ext3_has_free_blocks(EXT3_SB(sb)) || (*retries)++ > 3)
+       if (!ext3_has_free_blocks(sb) || (*retries)++ > 3)
                return 0;
 
        jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
@@ -1444,6 +1463,8 @@ ext3_fsblk_t ext3_new_blocks(handle_t *h
                *errp = -EDQUOT;
                return 0;
        }
+       if (DLIMIT_ALLOC_BLOCK(inode, num))
+           goto out_dlimit;
 
        sbi = EXT3_SB(sb);
        es = EXT3_SB(sb)->s_es;
@@ -1460,7 +1481,7 @@ ext3_fsblk_t ext3_new_blocks(handle_t *h
        if (block_i && ((windowsz = block_i->rsv_window_node.rsv_goal_size) > 0))
                my_rsv = &block_i->rsv_window_node;
 
-       if (!ext3_has_free_blocks(sbi)) {
+       if (!ext3_has_free_blocks(sb)) {
                *errp = -ENOSPC;
                goto out;
        }
@@ -1647,12 +1668,16 @@ allocated:
        *errp = 0;
        brelse(bitmap_bh);
        DQUOT_FREE_BLOCK(inode, *count-num);
+       DLIMIT_FREE_BLOCK(inode, *count-num);
        *count = num;
        return ret_block;
 
 io_error:
        *errp = -EIO;
 out:
+       if (!performed_allocation)
+               DLIMIT_FREE_BLOCK(inode, *count);
+out_dlimit:
        if (fatal) {
                *errp = fatal;
                ext3_std_error(sb, fatal);
diff -NurpP --minimal linux-2.6.22.10/fs/ext3/file.c linux-2.6.22.10-vs2.3.0.29/fs/ext3/file.c
--- linux-2.6.22.10/fs/ext3/file.c      2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext3/file.c   2007-09-12 20:04:16 +0200
@@ -135,5 +135,6 @@ const struct inode_operations ext3_file_
        .removexattr    = generic_removexattr,
 #endif
        .permission     = ext3_permission,
+       .sync_flags     = ext3_sync_flags,
 };
 
diff -NurpP --minimal linux-2.6.22.10/fs/ext3/ialloc.c linux-2.6.22.10-vs2.3.0.29/fs/ext3/ialloc.c
--- linux-2.6.22.10/fs/ext3/ialloc.c    2006-11-30 21:19:19 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext3/ialloc.c 2007-08-05 20:53:12 +0200
@@ -23,6 +23,8 @@
 #include <linux/buffer_head.h>
 #include <linux/random.h>
 #include <linux/bitops.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vs_tag.h>
 
 #include <asm/byteorder.h>
 
@@ -127,6 +129,7 @@ void ext3_free_inode (handle_t *handle, 
        ext3_xattr_delete_inode(handle, inode);
        DQUOT_FREE_INODE(inode);
        DQUOT_DROP(inode);
+       DLIMIT_FREE_INODE(inode);
 
        is_directory = S_ISDIR(inode->i_mode);
 
@@ -445,6 +448,12 @@ struct inode *ext3_new_inode(handle_t *h
        inode = new_inode(sb);
        if (!inode)
                return ERR_PTR(-ENOMEM);
+
+       inode->i_tag = dx_current_fstag(sb);
+       if (DLIMIT_ALLOC_INODE(inode)) {
+               err = -ENOSPC;
+               goto out_dlimit;
+       }
        ei = EXT3_I(inode);
 
        sbi = EXT3_SB(sb);
@@ -566,7 +575,8 @@ got:
        ei->i_dir_start_lookup = 0;
        ei->i_disksize = 0;
 
-       ei->i_flags = EXT3_I(dir)->i_flags & ~EXT3_INDEX_FL;
+       ei->i_flags = EXT3_I(dir)->i_flags &
+               ~(EXT3_INDEX_FL|EXT3_IUNLINK_FL|EXT3_BARRIER_FL);
        if (S_ISLNK(mode))
                ei->i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);
        /* dirsync only applies to directories */
@@ -621,6 +631,8 @@ got:
 fail:
        ext3_std_error(sb, err);
 out:
+       DLIMIT_FREE_INODE(inode);
+out_dlimit:
        iput(inode);
        ret = ERR_PTR(err);
 really_out:
@@ -632,6 +644,7 @@ fail_free_drop:
 
 fail_drop:
        DQUOT_DROP(inode);
+       DLIMIT_FREE_INODE(inode);
        inode->i_flags |= S_NOQUOTA;
        inode->i_nlink = 0;
        iput(inode);
diff -NurpP --minimal linux-2.6.22.10/fs/ext3/inode.c linux-2.6.22.10-vs2.3.0.29/fs/ext3/inode.c
--- linux-2.6.22.10/fs/ext3/inode.c     2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext3/inode.c  2007-08-18 02:52:34 +0200
@@ -36,6 +36,7 @@
 #include <linux/mpage.h>
 #include <linux/uio.h>
 #include <linux/bio.h>
+#include <linux/vs_tag.h>
 #include "xattr.h"
 #include "acl.h"
 
@@ -2237,7 +2238,7 @@ void ext3_truncate(struct inode *inode)
                return;
        if (ext3_inode_is_fast_symlink(inode))
                return;
-       if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+       if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
                return;
 
        /*
@@ -2559,13 +2560,20 @@ void ext3_set_inode_flags(struct inode *
 {
        unsigned int flags = EXT3_I(inode)->i_flags;
 
-       inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
+       inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER |
+               S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+       if (flags & EXT3_IMMUTABLE_FL)
+               inode->i_flags |= S_IMMUTABLE;
+       if (flags & EXT3_IUNLINK_FL)
+               inode->i_flags |= S_IUNLINK;
+       if (flags & EXT3_BARRIER_FL)
+               inode->i_flags |= S_BARRIER;
+
        if (flags & EXT3_SYNC_FL)
                inode->i_flags |= S_SYNC;
        if (flags & EXT3_APPEND_FL)
                inode->i_flags |= S_APPEND;
-       if (flags & EXT3_IMMUTABLE_FL)
-               inode->i_flags |= S_IMMUTABLE;
        if (flags & EXT3_NOATIME_FL)
                inode->i_flags |= S_NOATIME;
        if (flags & EXT3_DIRSYNC_FL)
@@ -2591,6 +2599,45 @@ void ext3_get_inode_flags(struct ext3_in
                ei->i_flags |= EXT3_DIRSYNC_FL;
 }
 
+int ext3_sync_flags(struct inode *inode)
+{
+       unsigned int oldflags, newflags;
+       int err = 0;
+
+       oldflags = EXT3_I(inode)->i_flags;
+       newflags = oldflags & ~(EXT3_IMMUTABLE_FL |
+               EXT3_IUNLINK_FL | EXT3_BARRIER_FL);
+
+       if (IS_IMMUTABLE(inode))
+               newflags |= EXT3_IMMUTABLE_FL;
+       if (IS_IUNLINK(inode))
+               newflags |= EXT3_IUNLINK_FL;
+       if (IS_BARRIER(inode))
+               newflags |= EXT3_BARRIER_FL;
+
+       if (oldflags ^ newflags) {
+               handle_t *handle;
+               struct ext3_iloc iloc;
+
+               handle = ext3_journal_start(inode, 1);
+               if (IS_ERR(handle))
+                       return PTR_ERR(handle);
+               if (IS_SYNC(inode))
+                       handle->h_sync = 1;
+               err = ext3_reserve_inode_write(handle, inode, &iloc);
+               if (err)
+                       goto flags_err;
+
+               EXT3_I(inode)->i_flags = newflags;
+               inode->i_ctime = CURRENT_TIME;
+
+               err = ext3_mark_iloc_dirty(handle, inode, &iloc);
+       flags_err:
+               ext3_journal_stop(handle);
+       }
+       return err;
+}
+
 void ext3_read_inode(struct inode * inode)
 {
        struct ext3_iloc iloc;
@@ -2598,6 +2645,8 @@ void ext3_read_inode(struct inode * inod
        struct ext3_inode_info *ei = EXT3_I(inode);
        struct buffer_head *bh;
        int block;
+       uid_t uid;
+       gid_t gid;
 
 #ifdef CONFIG_EXT3_FS_POSIX_ACL
        ei->i_acl = EXT3_ACL_NOT_CACHED;
@@ -2610,12 +2659,17 @@ void ext3_read_inode(struct inode * inod
        bh = iloc.bh;
        raw_inode = ext3_raw_inode(&iloc);
        inode->i_mode = le16_to_cpu(raw_inode->i_mode);
-       inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
-       inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+       uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+       gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
        if(!(test_opt (inode->i_sb, NO_UID32))) {
-               inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
-               inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+               uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+               gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
        }
+       inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
+       inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
+       inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
+               le16_to_cpu(raw_inode->i_raw_tag));
+
        inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
        inode->i_size = le32_to_cpu(raw_inode->i_size);
        inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
@@ -2741,6 +2795,8 @@ static int ext3_do_update_inode(handle_t
        struct ext3_inode *raw_inode = ext3_raw_inode(iloc);
        struct ext3_inode_info *ei = EXT3_I(inode);
        struct buffer_head *bh = iloc->bh;
+       uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
+       gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
        int err = 0, rc, block;
 
        /* For fields not not tracking in the in-memory inode,
@@ -2751,29 +2807,32 @@ static int ext3_do_update_inode(handle_t
        ext3_get_inode_flags(ei);
        raw_inode->i_mode = cpu_to_le16(inode->i_mode);
        if(!(test_opt(inode->i_sb, NO_UID32))) {
-               raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid));
-               raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid));
+               raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid));
+               raw_inode->i_gid_low = cpu_to_le16(low_16_bits(gid));
 /*
  * Fix up interoperability with old kernels. Otherwise, old inodes get
  * re-used with the upper 16 bits of the uid/gid intact
  */
                if(!ei->i_dtime) {
                        raw_inode->i_uid_high =
-                               cpu_to_le16(high_16_bits(inode->i_uid));
+                               cpu_to_le16(high_16_bits(uid));
                        raw_inode->i_gid_high =
-                               cpu_to_le16(high_16_bits(inode->i_gid));
+                               cpu_to_le16(high_16_bits(gid));
                } else {
                        raw_inode->i_uid_high = 0;
                        raw_inode->i_gid_high = 0;
                }
        } else {
                raw_inode->i_uid_low =
-                       cpu_to_le16(fs_high2lowuid(inode->i_uid));
+                       cpu_to_le16(fs_high2lowuid(uid));
                raw_inode->i_gid_low =
-                       cpu_to_le16(fs_high2lowgid(inode->i_gid));
+                       cpu_to_le16(fs_high2lowgid(gid));
                raw_inode->i_uid_high = 0;
                raw_inode->i_gid_high = 0;
        }
+#ifdef CONFIG_TAGGING_INTERN
+       raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag);
+#endif
        raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
        raw_inode->i_size = cpu_to_le32(ei->i_disksize);
        raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
@@ -2926,7 +2985,8 @@ int ext3_setattr(struct dentry *dentry, 
                return error;
 
        if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
-               (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
+               (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
+               (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) {
                handle_t *handle;
 
                /* (user+group)*(old+new) structure, inode write (sb,
@@ -2948,6 +3008,8 @@ int ext3_setattr(struct dentry *dentry, 
                        inode->i_uid = attr->ia_uid;
                if (attr->ia_valid & ATTR_GID)
                        inode->i_gid = attr->ia_gid;
+               if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode))
+                       inode->i_tag = attr->ia_tag;
                error = ext3_mark_inode_dirty(handle, inode);
                ext3_journal_stop(handle);
        }
diff -NurpP --minimal linux-2.6.22.10/fs/ext3/ioctl.c linux-2.6.22.10-vs2.3.0.29/fs/ext3/ioctl.c
--- linux-2.6.22.10/fs/ext3/ioctl.c     2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext3/ioctl.c  2007-08-05 20:53:12 +0200
@@ -8,6 +8,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/mount.h>
 #include <linux/jbd.h>
 #include <linux/capability.h>
 #include <linux/ext3_fs.h>
@@ -15,6 +16,7 @@
 #include <linux/time.h>
 #include <linux/compat.h>
 #include <linux/smp_lock.h>
+#include <linux/vs_tag.h>
 #include <asm/uaccess.h>
 
 int ext3_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
@@ -38,7 +40,8 @@ int ext3_ioctl (struct inode * inode, st
                unsigned int oldflags;
                unsigned int jflag;
 
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
@@ -62,7 +65,9 @@ int ext3_ioctl (struct inode * inode, st
                 *
                 * This test looks nicer. Thanks to Pauline Middelink
                 */
-               if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) {
+               if ((oldflags & EXT3_IMMUTABLE_FL) ||
+                       ((flags ^ oldflags) & (EXT3_APPEND_FL |
+                       EXT3_IMMUTABLE_FL | EXT3_IUNLINK_FL))) {
                        if (!capable(CAP_LINUX_IMMUTABLE)) {
                                mutex_unlock(&inode->i_mutex);
                                return -EPERM;
@@ -124,7 +129,8 @@ flags_err:
 
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
                        return -EPERM;
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
                if (get_user(generation, (int __user *) arg))
                        return -EFAULT;
@@ -178,7 +184,8 @@ flags_err:
                if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode))
                        return -ENOTTY;
 
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
@@ -213,7 +220,8 @@ flags_err:
                if (!capable(CAP_SYS_RESOURCE))
                        return -EPERM;
 
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if (get_user(n_blocks_count, (__u32 __user *)arg))
@@ -234,7 +242,8 @@ flags_err:
                if (!capable(CAP_SYS_RESOURCE))
                        return -EPERM;
 
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if (copy_from_user(&input, (struct ext3_new_group_input __user *)arg,
diff -NurpP --minimal linux-2.6.22.10/fs/ext3/namei.c linux-2.6.22.10-vs2.3.0.29/fs/ext3/namei.c
--- linux-2.6.22.10/fs/ext3/namei.c     2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext3/namei.c  2007-09-30 14:58:01 +0200
@@ -36,6 +36,7 @@
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
 #include <linux/bio.h>
+#include <linux/vs_tag.h>
 
 #include "namei.h"
 #include "xattr.h"
@@ -1052,6 +1053,7 @@ static struct dentry *ext3_lookup(struct
 
                if (!inode)
                        return ERR_PTR(-EACCES);
+               dx_propagate_tag(nd, inode);
        }
        return d_splice_alias(inode, dentry);
 }
@@ -2443,6 +2445,7 @@ const struct inode_operations ext3_dir_i
        .removexattr    = generic_removexattr,
 #endif
        .permission     = ext3_permission,
+       .sync_flags     = ext3_sync_flags,
 };
 
 const struct inode_operations ext3_special_inode_operations = {
@@ -2454,4 +2457,5 @@ const struct inode_operations ext3_speci
        .removexattr    = generic_removexattr,
 #endif
        .permission     = ext3_permission,
+       .sync_flags     = ext3_sync_flags,
 };
diff -NurpP --minimal linux-2.6.22.10/fs/ext3/super.c linux-2.6.22.10-vs2.3.0.29/fs/ext3/super.c
--- linux-2.6.22.10/fs/ext3/super.c     2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext3/super.c  2007-08-05 20:53:12 +0200
@@ -674,7 +674,7 @@ enum {
        Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
        Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
        Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
-       Opt_grpquota
+       Opt_grpquota, Opt_tag, Opt_notag, Opt_tagid
 };
 
 static match_table_t tokens = {
@@ -724,6 +724,9 @@ static match_table_t tokens = {
        {Opt_quota, "quota"},
        {Opt_usrquota, "usrquota"},
        {Opt_barrier, "barrier=%u"},
+       {Opt_tag, "tag"},
+       {Opt_notag, "notag"},
+       {Opt_tagid, "tagid=%u"},
        {Opt_err, NULL},
        {Opt_resize, "resize"},
 };
@@ -817,6 +820,20 @@ static int parse_options (char *options,
                case Opt_nouid32:
                        set_opt (sbi->s_mount_opt, NO_UID32);
                        break;
+#ifndef CONFIG_TAGGING_NONE
+               case Opt_tag:
+                       set_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+               case Opt_notag:
+                       clear_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+#endif
+#ifdef CONFIG_PROPAGATE
+               case Opt_tagid:
+                       /* use args[0] */
+                       set_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+#endif
                case Opt_nocheck:
                        clear_opt (sbi->s_mount_opt, CHECK);
                        break;
@@ -1487,6 +1504,9 @@ static int ext3_fill_super (struct super
                            NULL, 0))
                goto failed_mount;
 
+       if (EXT3_SB(sb)->s_mount_opt & EXT3_MOUNT_TAGGED)
+               sb->s_flags |= MS_TAGGED;
+
        sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
                ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
 
@@ -2302,6 +2322,12 @@ static int ext3_remount (struct super_bl
 
        if (sbi->s_mount_opt & EXT3_MOUNT_ABORT)
                ext3_abort(sb, __FUNCTION__, "Abort forced by user");
+       if ((sbi->s_mount_opt & EXT3_MOUNT_TAGGED) &&
+               !(sb->s_flags & MS_TAGGED)) {
+               printk("EXT3-fs: %s: tagging not permitted on remount.\n",
+                       sb->s_id);
+               return -EINVAL;
+       }
 
        sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
                ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
diff -NurpP --minimal linux-2.6.22.10/fs/ext3/symlink.c linux-2.6.22.10-vs2.3.0.29/fs/ext3/symlink.c
--- linux-2.6.22.10/fs/ext3/symlink.c   2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext3/symlink.c        2007-08-05 20:53:12 +0200
@@ -40,6 +40,7 @@ const struct inode_operations ext3_symli
        .listxattr      = ext3_listxattr,
        .removexattr    = generic_removexattr,
 #endif
+       .sync_flags     = ext3_sync_flags,
 };
 
 const struct inode_operations ext3_fast_symlink_inode_operations = {
@@ -51,4 +52,5 @@ const struct inode_operations ext3_fast_
        .listxattr      = ext3_listxattr,
        .removexattr    = generic_removexattr,
 #endif
+       .sync_flags     = ext3_sync_flags,
 };
diff -NurpP --minimal linux-2.6.22.10/fs/ext3/xattr.c linux-2.6.22.10-vs2.3.0.29/fs/ext3/xattr.c
--- linux-2.6.22.10/fs/ext3/xattr.c     2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext3/xattr.c  2007-08-05 20:53:12 +0200
@@ -58,6 +58,7 @@
 #include <linux/mbcache.h>
 #include <linux/quotaops.h>
 #include <linux/rwsem.h>
+#include <linux/vs_dlimit.h>
 #include "xattr.h"
 #include "acl.h"
 
@@ -497,6 +498,7 @@ ext3_xattr_release_block(handle_t *handl
                error = ext3_journal_dirty_metadata(handle, bh);
                if (IS_SYNC(inode))
                        handle->h_sync = 1;
+                       DLIMIT_FREE_BLOCK(inode, 1);
                DQUOT_FREE_BLOCK(inode, 1);
                ea_bdebug(bh, "refcount now=%d; releasing",
                          le32_to_cpu(BHDR(bh)->h_refcount));
@@ -771,11 +773,14 @@ inserted:
                        if (new_bh == bs->bh)
                                ea_bdebug(new_bh, "keeping");
                        else {
+                               error = -ENOSPC;
+                               if (DLIMIT_ALLOC_BLOCK(inode, 1))
+                                       goto cleanup;
                                /* The old block is released after updating
                                   the inode. */
                                error = -EDQUOT;
                                if (DQUOT_ALLOC_BLOCK(inode, 1))
-                                       goto cleanup;
+                                       goto cleanup_dlimit;
                                error = ext3_journal_get_write_access(handle,
                                                                      new_bh);
                                if (error)
@@ -852,6 +857,8 @@ cleanup:
 
 cleanup_dquot:
        DQUOT_FREE_BLOCK(inode, 1);
+cleanup_dlimit:
+       DLIMIT_FREE_BLOCK(inode, 1);
        goto cleanup;
 
 bad_block:
diff -NurpP --minimal linux-2.6.22.10/fs/ext4/balloc.c linux-2.6.22.10-vs2.3.0.29/fs/ext4/balloc.c
--- linux-2.6.22.10/fs/ext4/balloc.c    2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext4/balloc.c 2007-08-05 20:53:12 +0200
@@ -19,6 +19,8 @@
 #include <linux/ext4_jbd2.h>
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vs_tag.h>
 
 /*
  * balloc.c contains the blocks allocation and deallocation routines
@@ -630,8 +632,10 @@ void ext4_free_blocks(handle_t *handle, 
                return;
        }
        ext4_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
-       if (dquot_freed_blocks)
+       if (dquot_freed_blocks) {
+               DLIMIT_FREE_BLOCK(inode, dquot_freed_blocks);
                DQUOT_FREE_BLOCK(inode, dquot_freed_blocks);
+       }
        return;
 }
 
@@ -1370,18 +1374,33 @@ out:
  *
  * Check if filesystem has at least 1 free block available for allocation.
  */
-static int ext4_has_free_blocks(struct ext4_sb_info *sbi)
+static int ext4_has_free_blocks(struct super_block *sb)
 {
+       struct ext4_sb_info *sbi = EXT4_SB(sb);
        ext4_fsblk_t free_blocks, root_blocks;
+       int cond;
 
        free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
        root_blocks = ext4_r_blocks_count(sbi->s_es);
-       if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
+
+       vxdprintk(VXD_CBIT(dlim, 3),
+               "ext4_has_free_blocks(%p): free=%llu, root=%llu",
+               sb, free_blocks, root_blocks);
+
+       DLIMIT_ADJUST_BLOCK(sb, dx_current_tag(), &free_blocks, &root_blocks);
+
+       cond = (free_blocks < root_blocks + 1 &&
+               !capable(CAP_SYS_RESOURCE) &&
                sbi->s_resuid != current->fsuid &&
-               (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
-               return 0;
-       }
-       return 1;
+               (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid)));
+
+       vxdprintk(VXD_CBIT(dlim, 3),
+               "ext4_has_free_blocks(%p): %llu<%llu+1, %c, %u!=%u r=%d",
+               sb, free_blocks, root_blocks,
+               !capable(CAP_SYS_RESOURCE)?'1':'0',
+               sbi->s_resuid, current->fsuid, cond?0:1);
+
+       return (cond ? 0 : 1);
 }
 
 /**
@@ -1398,7 +1417,7 @@ static int ext4_has_free_blocks(struct e
  */
 int ext4_should_retry_alloc(struct super_block *sb, int *retries)
 {
-       if (!ext4_has_free_blocks(EXT4_SB(sb)) || (*retries)++ > 3)
+       if (!ext4_has_free_blocks(sb) || (*retries)++ > 3)
                return 0;
 
        jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
@@ -1461,6 +1480,8 @@ ext4_fsblk_t ext4_new_blocks(handle_t *h
                *errp = -EDQUOT;
                return 0;
        }
+       if (DLIMIT_ALLOC_BLOCK(inode, num))
+           goto out_dlimit;
 
        sbi = EXT4_SB(sb);
        es = EXT4_SB(sb)->s_es;
@@ -1477,7 +1498,7 @@ ext4_fsblk_t ext4_new_blocks(handle_t *h
        if (block_i && ((windowsz = block_i->rsv_window_node.rsv_goal_size) > 0))
                my_rsv = &block_i->rsv_window_node;
 
-       if (!ext4_has_free_blocks(sbi)) {
+       if (!ext4_has_free_blocks(sb)) {
                *errp = -ENOSPC;
                goto out;
        }
@@ -1661,12 +1682,16 @@ allocated:
        *errp = 0;
        brelse(bitmap_bh);
        DQUOT_FREE_BLOCK(inode, *count-num);
+       DLIMIT_FREE_BLOCK(inode, *count-num);
        *count = num;
        return ret_block;
 
 io_error:
        *errp = -EIO;
 out:
+       if (!performed_allocation)
+               DLIMIT_FREE_BLOCK(inode, *count);
+out_dlimit:
        if (fatal) {
                *errp = fatal;
                ext4_std_error(sb, fatal);
diff -NurpP --minimal linux-2.6.22.10/fs/ext4/file.c linux-2.6.22.10-vs2.3.0.29/fs/ext4/file.c
--- linux-2.6.22.10/fs/ext4/file.c      2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext4/file.c   2007-09-12 20:04:16 +0200
@@ -135,5 +135,6 @@ const struct inode_operations ext4_file_
        .removexattr    = generic_removexattr,
 #endif
        .permission     = ext4_permission,
+       .sync_flags     = ext4_sync_flags,
 };
 
diff -NurpP --minimal linux-2.6.22.10/fs/ext4/ialloc.c linux-2.6.22.10-vs2.3.0.29/fs/ext4/ialloc.c
--- linux-2.6.22.10/fs/ext4/ialloc.c    2006-11-30 21:19:20 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext4/ialloc.c 2007-08-05 20:53:12 +0200
@@ -24,6 +24,8 @@
 #include <linux/random.h>
 #include <linux/bitops.h>
 #include <linux/blkdev.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vs_tag.h>
 #include <asm/byteorder.h>
 
 #include "xattr.h"
@@ -127,6 +129,7 @@ void ext4_free_inode (handle_t *handle, 
        ext4_xattr_delete_inode(handle, inode);
        DQUOT_FREE_INODE(inode);
        DQUOT_DROP(inode);
+       DLIMIT_FREE_INODE(inode);
 
        is_directory = S_ISDIR(inode->i_mode);
 
@@ -448,6 +451,12 @@ struct inode *ext4_new_inode(handle_t *h
        inode = new_inode(sb);
        if (!inode)
                return ERR_PTR(-ENOMEM);
+
+       inode->i_tag = dx_current_fstag(sb);
+       if (DLIMIT_ALLOC_INODE(inode)) {
+               err = -ENOSPC;
+               goto out_dlimit;
+       }
        ei = EXT4_I(inode);
 
        sbi = EXT4_SB(sb);
@@ -569,7 +578,8 @@ got:
        ei->i_dir_start_lookup = 0;
        ei->i_disksize = 0;
 
-       ei->i_flags = EXT4_I(dir)->i_flags & ~EXT4_INDEX_FL;
+       ei->i_flags = EXT4_I(dir)->i_flags &
+               ~(EXT4_INDEX_FL|EXT4_IUNLINK_FL|EXT4_BARRIER_FL);
        if (S_ISLNK(mode))
                ei->i_flags &= ~(EXT4_IMMUTABLE_FL|EXT4_APPEND_FL);
        /* dirsync only applies to directories */
@@ -635,6 +645,8 @@ got:
 fail:
        ext4_std_error(sb, err);
 out:
+       DLIMIT_FREE_INODE(inode);
+out_dlimit:
        iput(inode);
        ret = ERR_PTR(err);
 really_out:
@@ -646,6 +658,7 @@ fail_free_drop:
 
 fail_drop:
        DQUOT_DROP(inode);
+       DLIMIT_FREE_INODE(inode);
        inode->i_flags |= S_NOQUOTA;
        inode->i_nlink = 0;
        iput(inode);
diff -NurpP --minimal linux-2.6.22.10/fs/ext4/inode.c linux-2.6.22.10-vs2.3.0.29/fs/ext4/inode.c
--- linux-2.6.22.10/fs/ext4/inode.c     2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext4/inode.c  2007-08-18 02:52:34 +0200
@@ -36,6 +36,7 @@
 #include <linux/mpage.h>
 #include <linux/uio.h>
 #include <linux/bio.h>
+#include <linux/vs_tag.h>
 #include "xattr.h"
 #include "acl.h"
 
@@ -2244,7 +2245,7 @@ void ext4_truncate(struct inode *inode)
                return;
        if (ext4_inode_is_fast_symlink(inode))
                return;
-       if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+       if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
                return;
 
        /*
@@ -2570,19 +2571,65 @@ void ext4_set_inode_flags(struct inode *
 {
        unsigned int flags = EXT4_I(inode)->i_flags;
 
-       inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
+       inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER |
+               S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
+
+       if (flags & EXT4_IMMUTABLE_FL)
+               inode->i_flags |= S_IMMUTABLE;
+       if (flags & EXT4_IUNLINK_FL)
+               inode->i_flags |= S_IUNLINK;
+       if (flags & EXT4_BARRIER_FL)
+               inode->i_flags |= S_BARRIER;
+
        if (flags & EXT4_SYNC_FL)
                inode->i_flags |= S_SYNC;
        if (flags & EXT4_APPEND_FL)
                inode->i_flags |= S_APPEND;
-       if (flags & EXT4_IMMUTABLE_FL)
-               inode->i_flags |= S_IMMUTABLE;
        if (flags & EXT4_NOATIME_FL)
                inode->i_flags |= S_NOATIME;
        if (flags & EXT4_DIRSYNC_FL)
                inode->i_flags |= S_DIRSYNC;
 }
 
+int ext4_sync_flags(struct inode *inode)
+{
+       unsigned int oldflags, newflags;
+       int err = 0;
+
+       oldflags = EXT4_I(inode)->i_flags;
+       newflags = oldflags & ~(EXT4_IMMUTABLE_FL |
+               EXT4_IUNLINK_FL | EXT4_BARRIER_FL);
+
+       if (IS_IMMUTABLE(inode))
+               newflags |= EXT4_IMMUTABLE_FL;
+       if (IS_IUNLINK(inode))
+               newflags |= EXT4_IUNLINK_FL;
+       if (IS_BARRIER(inode))
+               newflags |= EXT4_BARRIER_FL;
+
+       if (oldflags ^ newflags) {
+               handle_t *handle;
+               struct ext4_iloc iloc;
+
+               handle = ext4_journal_start(inode, 1);
+               if (IS_ERR(handle))
+                       return PTR_ERR(handle);
+               if (IS_SYNC(inode))
+                       handle->h_sync = 1;
+               err = ext4_reserve_inode_write(handle, inode, &iloc);
+               if (err)
+                       goto flags_err;
+
+               EXT4_I(inode)->i_flags = newflags;
+               inode->i_ctime = CURRENT_TIME;
+
+               err = ext4_mark_iloc_dirty(handle, inode, &iloc);
+       flags_err:
+               ext4_journal_stop(handle);
+       }
+       return err;
+}
+
 void ext4_read_inode(struct inode * inode)
 {
        struct ext4_iloc iloc;
@@ -2590,6 +2637,8 @@ void ext4_read_inode(struct inode * inod
        struct ext4_inode_info *ei = EXT4_I(inode);
        struct buffer_head *bh;
        int block;
+       uid_t uid;
+       gid_t gid;
 
 #ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
        ei->i_acl = EXT4_ACL_NOT_CACHED;
@@ -2602,12 +2651,17 @@ void ext4_read_inode(struct inode * inod
        bh = iloc.bh;
        raw_inode = ext4_raw_inode(&iloc);
        inode->i_mode = le16_to_cpu(raw_inode->i_mode);
-       inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
-       inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+       uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+       gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
        if(!(test_opt (inode->i_sb, NO_UID32))) {
-               inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
-               inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+               uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+               gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
        }
+       inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
+       inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
+       inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
+               le16_to_cpu(raw_inode->i_raw_tag));
+
        inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
        inode->i_size = le32_to_cpu(raw_inode->i_size);
        inode->i_atime.tv_sec = (signed)le32_to_cpu(raw_inode->i_atime);
@@ -2737,6 +2791,8 @@ static int ext4_do_update_inode(handle_t
        struct ext4_inode *raw_inode = ext4_raw_inode(iloc);
        struct ext4_inode_info *ei = EXT4_I(inode);
        struct buffer_head *bh = iloc->bh;
+       uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
+       gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
        int err = 0, rc, block;
 
        /* For fields not not tracking in the in-memory inode,
@@ -2746,29 +2802,32 @@ static int ext4_do_update_inode(handle_t
 
        raw_inode->i_mode = cpu_to_le16(inode->i_mode);
        if(!(test_opt(inode->i_sb, NO_UID32))) {
-               raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid));
-               raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid));
+               raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid));
+               raw_inode->i_gid_low = cpu_to_le16(low_16_bits(gid));
 /*
  * Fix up interoperability with old kernels. Otherwise, old inodes get
  * re-used with the upper 16 bits of the uid/gid intact
  */
                if(!ei->i_dtime) {
                        raw_inode->i_uid_high =
-                               cpu_to_le16(high_16_bits(inode->i_uid));
+                               cpu_to_le16(high_16_bits(uid));
                        raw_inode->i_gid_high =
-                               cpu_to_le16(high_16_bits(inode->i_gid));
+                               cpu_to_le16(high_16_bits(gid));
                } else {
                        raw_inode->i_uid_high = 0;
                        raw_inode->i_gid_high = 0;
                }
        } else {
                raw_inode->i_uid_low =
-                       cpu_to_le16(fs_high2lowuid(inode->i_uid));
+                       cpu_to_le16(fs_high2lowuid(uid));
                raw_inode->i_gid_low =
-                       cpu_to_le16(fs_high2lowgid(inode->i_gid));
+                       cpu_to_le16(fs_high2lowgid(gid));
                raw_inode->i_uid_high = 0;
                raw_inode->i_gid_high = 0;
        }
+#ifdef CONFIG_TAGGING_INTERN
+       raw_inode->i_raw_tag = cpu_to_le16(inode->i_tag);
+#endif
        raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
        raw_inode->i_size = cpu_to_le32(ei->i_disksize);
        raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
@@ -2925,7 +2984,8 @@ int ext4_setattr(struct dentry *dentry, 
                return error;
 
        if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
-               (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
+               (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
+               (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) {
                handle_t *handle;
 
                /* (user+group)*(old+new) structure, inode write (sb,
@@ -2947,6 +3007,8 @@ int ext4_setattr(struct dentry *dentry, 
                        inode->i_uid = attr->ia_uid;
                if (attr->ia_valid & ATTR_GID)
                        inode->i_gid = attr->ia_gid;
+               if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode))
+                       inode->i_tag = attr->ia_tag;
                error = ext4_mark_inode_dirty(handle, inode);
                ext4_journal_stop(handle);
        }
diff -NurpP --minimal linux-2.6.22.10/fs/ext4/ioctl.c linux-2.6.22.10-vs2.3.0.29/fs/ext4/ioctl.c
--- linux-2.6.22.10/fs/ext4/ioctl.c     2007-02-06 03:01:18 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext4/ioctl.c  2007-08-05 20:53:12 +0200
@@ -8,6 +8,7 @@
  */
 
 #include <linux/fs.h>
+#include <linux/mount.h>
 #include <linux/jbd2.h>
 #include <linux/capability.h>
 #include <linux/ext4_fs.h>
@@ -15,6 +16,7 @@
 #include <linux/time.h>
 #include <linux/compat.h>
 #include <linux/smp_lock.h>
+#include <linux/vs_tag.h>
 #include <asm/uaccess.h>
 
 int ext4_ioctl (struct inode * inode, struct file * filp, unsigned int cmd,
@@ -37,7 +39,8 @@ int ext4_ioctl (struct inode * inode, st
                unsigned int oldflags;
                unsigned int jflag;
 
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
@@ -61,7 +64,9 @@ int ext4_ioctl (struct inode * inode, st
                 *
                 * This test looks nicer. Thanks to Pauline Middelink
                 */
-               if ((flags ^ oldflags) & (EXT4_APPEND_FL | EXT4_IMMUTABLE_FL)) {
+               if ((oldflags & EXT4_IMMUTABLE_FL) ||
+                       ((flags ^ oldflags) & (EXT4_APPEND_FL |
+                       EXT4_IMMUTABLE_FL | EXT4_IUNLINK_FL))) {
                        if (!capable(CAP_LINUX_IMMUTABLE)) {
                                mutex_unlock(&inode->i_mutex);
                                return -EPERM;
@@ -123,7 +128,8 @@ flags_err:
 
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
                        return -EPERM;
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
                if (get_user(generation, (int __user *) arg))
                        return -EFAULT;
@@ -177,7 +183,8 @@ flags_err:
                if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode))
                        return -ENOTTY;
 
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
@@ -212,7 +219,8 @@ flags_err:
                if (!capable(CAP_SYS_RESOURCE))
                        return -EPERM;
 
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if (get_user(n_blocks_count, (__u32 __user *)arg))
@@ -233,7 +241,8 @@ flags_err:
                if (!capable(CAP_SYS_RESOURCE))
                        return -EPERM;
 
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if (copy_from_user(&input, (struct ext4_new_group_input __user *)arg,
diff -NurpP --minimal linux-2.6.22.10/fs/ext4/namei.c linux-2.6.22.10-vs2.3.0.29/fs/ext4/namei.c
--- linux-2.6.22.10/fs/ext4/namei.c     2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext4/namei.c  2007-09-30 14:58:01 +0200
@@ -36,6 +36,7 @@
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
 #include <linux/bio.h>
+#include <linux/vs_tag.h>
 
 #include "namei.h"
 #include "xattr.h"
@@ -1050,6 +1051,7 @@ static struct dentry *ext4_lookup(struct
 
                if (!inode)
                        return ERR_PTR(-EACCES);
+               dx_propagate_tag(nd, inode);
        }
        return d_splice_alias(inode, dentry);
 }
@@ -2441,6 +2443,7 @@ const struct inode_operations ext4_dir_i
        .removexattr    = generic_removexattr,
 #endif
        .permission     = ext4_permission,
+       .sync_flags     = ext4_sync_flags,
 };
 
 const struct inode_operations ext4_special_inode_operations = {
@@ -2452,4 +2455,5 @@ const struct inode_operations ext4_speci
        .removexattr    = generic_removexattr,
 #endif
        .permission     = ext4_permission,
+       .sync_flags     = ext4_sync_flags,
 };
diff -NurpP --minimal linux-2.6.22.10/fs/ext4/super.c linux-2.6.22.10-vs2.3.0.29/fs/ext4/super.c
--- linux-2.6.22.10/fs/ext4/super.c     2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext4/super.c  2007-08-05 20:53:12 +0200
@@ -725,7 +725,7 @@ enum {
        Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
        Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
        Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
-       Opt_grpquota, Opt_extents,
+       Opt_grpquota, Opt_extents, Opt_tag, Opt_notag, Opt_tagid
 };
 
 static match_table_t tokens = {
@@ -776,6 +776,9 @@ static match_table_t tokens = {
        {Opt_usrquota, "usrquota"},
        {Opt_barrier, "barrier=%u"},
        {Opt_extents, "extents"},
+       {Opt_tag, "tag"},
+       {Opt_notag, "notag"},
+       {Opt_tagid, "tagid=%u"},
        {Opt_err, NULL},
        {Opt_resize, "resize"},
 };
@@ -869,6 +872,20 @@ static int parse_options (char *options,
                case Opt_nouid32:
                        set_opt (sbi->s_mount_opt, NO_UID32);
                        break;
+#ifndef CONFIG_TAGGING_NONE
+               case Opt_tag:
+                       set_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+               case Opt_notag:
+                       clear_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+#endif
+#ifdef CONFIG_PROPAGATE
+               case Opt_tagid:
+                       /* use args[0] */
+                       set_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+#endif
                case Opt_nocheck:
                        clear_opt (sbi->s_mount_opt, CHECK);
                        break;
@@ -1546,6 +1563,9 @@ static int ext4_fill_super (struct super
                            NULL, 0))
                goto failed_mount;
 
+       if (EXT4_SB(sb)->s_mount_opt & EXT4_MOUNT_TAGGED)
+               sb->s_flags |= MS_TAGGED;
+
        sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
                ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
 
@@ -2377,6 +2397,12 @@ static int ext4_remount (struct super_bl
 
        if (sbi->s_mount_opt & EXT4_MOUNT_ABORT)
                ext4_abort(sb, __FUNCTION__, "Abort forced by user");
+       if ((sbi->s_mount_opt & EXT4_MOUNT_TAGGED) &&
+               !(sb->s_flags & MS_TAGGED)) {
+               printk("EXT4-fs: %s: tagging not permitted on remount.\n",
+                       sb->s_id);
+               return -EINVAL;
+       }
 
        sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
                ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
diff -NurpP --minimal linux-2.6.22.10/fs/ext4/symlink.c linux-2.6.22.10-vs2.3.0.29/fs/ext4/symlink.c
--- linux-2.6.22.10/fs/ext4/symlink.c   2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext4/symlink.c        2007-08-05 20:53:12 +0200
@@ -40,6 +40,7 @@ const struct inode_operations ext4_symli
        .listxattr      = ext4_listxattr,
        .removexattr    = generic_removexattr,
 #endif
+       .sync_flags     = ext4_sync_flags,
 };
 
 const struct inode_operations ext4_fast_symlink_inode_operations = {
@@ -51,4 +52,5 @@ const struct inode_operations ext4_fast_
        .listxattr      = ext4_listxattr,
        .removexattr    = generic_removexattr,
 #endif
+       .sync_flags     = ext4_sync_flags,
 };
diff -NurpP --minimal linux-2.6.22.10/fs/ext4/xattr.c linux-2.6.22.10-vs2.3.0.29/fs/ext4/xattr.c
--- linux-2.6.22.10/fs/ext4/xattr.c     2007-05-02 19:25:17 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ext4/xattr.c  2007-08-05 20:53:12 +0200
@@ -58,6 +58,7 @@
 #include <linux/mbcache.h>
 #include <linux/quotaops.h>
 #include <linux/rwsem.h>
+#include <linux/vs_dlimit.h>
 #include "xattr.h"
 #include "acl.h"
 
@@ -496,6 +497,7 @@ ext4_xattr_release_block(handle_t *handl
                error = ext4_journal_dirty_metadata(handle, bh);
                if (IS_SYNC(inode))
                        handle->h_sync = 1;
+                       DLIMIT_FREE_BLOCK(inode, 1);
                DQUOT_FREE_BLOCK(inode, 1);
                ea_bdebug(bh, "refcount now=%d; releasing",
                          le32_to_cpu(BHDR(bh)->h_refcount));
@@ -769,11 +771,14 @@ inserted:
                        if (new_bh == bs->bh)
                                ea_bdebug(new_bh, "keeping");
                        else {
+                               error = -ENOSPC;
+                               if (DLIMIT_ALLOC_BLOCK(inode, 1))
+                                       goto cleanup;
                                /* The old block is released after updating
                                   the inode. */
                                error = -EDQUOT;
                                if (DQUOT_ALLOC_BLOCK(inode, 1))
-                                       goto cleanup;
+                                       goto cleanup_dlimit;
                                error = ext4_journal_get_write_access(handle,
                                                                      new_bh);
                                if (error)
@@ -850,6 +855,8 @@ cleanup:
 
 cleanup_dquot:
        DQUOT_FREE_BLOCK(inode, 1);
+cleanup_dlimit:
+       DLIMIT_FREE_BLOCK(inode, 1);
        goto cleanup;
 
 bad_block:
diff -NurpP --minimal linux-2.6.22.10/fs/fcntl.c linux-2.6.22.10-vs2.3.0.29/fs/fcntl.c
--- linux-2.6.22.10/fs/fcntl.c  2007-02-06 03:01:18 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/fcntl.c       2007-08-05 20:53:12 +0200
@@ -18,6 +18,7 @@
 #include <linux/ptrace.h>
 #include <linux/signal.h>
 #include <linux/rcupdate.h>
+#include <linux/vs_limit.h>
 
 #include <asm/poll.h>
 #include <asm/siginfo.h>
@@ -84,6 +85,8 @@ repeat:
        error = -EMFILE;
        if (newfd >= current->signal->rlim[RLIMIT_NOFILE].rlim_cur)
                goto out;
+       if (!vx_files_avail(1))
+               goto out;
 
        error = expand_files(files, newfd);
        if (error < 0)
@@ -124,6 +127,7 @@ static int dupfd(struct file *file, unsi
                FD_SET(fd, fdt->open_fds);
                FD_CLR(fd, fdt->close_on_exec);
                spin_unlock(&files->file_lock);
+               vx_openfd_inc(fd);
                fd_install(fd, file);
        } else {
                spin_unlock(&files->file_lock);
@@ -176,6 +180,9 @@ asmlinkage long sys_dup2(unsigned int ol
 
        if (tofree)
                filp_close(tofree, files);
+       else
+               vx_openfd_inc(newfd);   /* fd was unused */
+
        err = newfd;
 out:
        return err;
diff -NurpP --minimal linux-2.6.22.10/fs/file_table.c linux-2.6.22.10-vs2.3.0.29/fs/file_table.c
--- linux-2.6.22.10/fs/file_table.c     2007-07-09 13:19:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/file_table.c  2007-08-05 20:53:12 +0200
@@ -20,6 +20,8 @@
 #include <linux/fsnotify.h>
 #include <linux/sysctl.h>
 #include <linux/percpu_counter.h>
+#include <linux/vs_limit.h>
+#include <linux/vs_context.h>
 
 #include <asm/atomic.h>
 
@@ -119,6 +121,8 @@ struct file *get_empty_filp(void)
        f->f_gid = tsk->fsgid;
        eventpoll_init_file(f);
        /* f->f_version: 0 */
+       f->f_xid = vx_current_xid();
+       vx_files_inc(f);
        return f;
 
 over:
@@ -174,6 +178,8 @@ void fastcall __fput(struct file *file)
        if (file->f_mode & FMODE_WRITE)
                put_write_access(inode);
        put_pid(file->f_owner.pid);
+       vx_files_dec(file);
+       file->f_xid = 0;
        file_kill(file);
        file->f_path.dentry = NULL;
        file->f_path.mnt = NULL;
@@ -239,6 +245,8 @@ void put_filp(struct file *file)
 {
        if (atomic_dec_and_test(&file->f_count)) {
                security_file_free(file);
+               vx_files_dec(file);
+               file->f_xid = 0;
                file_kill(file);
                file_free(file);
        }
diff -NurpP --minimal linux-2.6.22.10/fs/hfsplus/ioctl.c linux-2.6.22.10-vs2.3.0.29/fs/hfsplus/ioctl.c
--- linux-2.6.22.10/fs/hfsplus/ioctl.c  2006-11-30 21:19:25 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/hfsplus/ioctl.c       2007-08-05 20:53:12 +0200
@@ -16,6 +16,7 @@
 #include <linux/fs.h>
 #include <linux/sched.h>
 #include <linux/xattr.h>
+#include <linux/mount.h>
 #include <asm/uaccess.h>
 #include "hfsplus_fs.h"
 
@@ -35,7 +36,8 @@ int hfsplus_ioctl(struct inode *inode, s
                        flags |= FS_NODUMP_FL; /* EXT2_NODUMP_FL */
                return put_user(flags, (int __user *)arg);
        case HFSPLUS_IOC_EXT2_SETFLAGS: {
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
diff -NurpP --minimal linux-2.6.22.10/fs/inode.c linux-2.6.22.10-vs2.3.0.29/fs/inode.c
--- linux-2.6.22.10/fs/inode.c  2007-07-09 13:19:24 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/inode.c       2007-10-11 01:10:22 +0200
@@ -115,6 +115,9 @@ static struct inode *alloc_inode(struct 
                struct address_space * const mapping = &inode->i_data;
 
                inode->i_sb = sb;
+
+               /* essential because of inode slab reuse */
+               inode->i_tag = 0;
                inode->i_blkbits = sb->s_blocksize_bits;
                inode->i_flags = 0;
                atomic_set(&inode->i_count, 1);
@@ -133,6 +136,7 @@ static struct inode *alloc_inode(struct 
                inode->i_bdev = NULL;
                inode->i_cdev = NULL;
                inode->i_rdev = 0;
+               inode->i_mdev = 0;
                inode->dirtied_when = 0;
                if (security_inode_alloc(inode)) {
                        if (inode->i_sb->s_op->destroy_inode)
@@ -231,6 +235,8 @@ void __iget(struct inode * inode)
        inodes_stat.nr_unused--;
 }
 
+EXPORT_SYMBOL_GPL(__iget);
+
 /**
  * clear_inode - clear an inode
  * @inode: inode to clear
@@ -1405,9 +1411,11 @@ void init_special_inode(struct inode *in
        if (S_ISCHR(mode)) {
                inode->i_fop = &def_chr_fops;
                inode->i_rdev = rdev;
+               inode->i_mdev = rdev;
        } else if (S_ISBLK(mode)) {
                inode->i_fop = &def_blk_fops;
                inode->i_rdev = rdev;
+               inode->i_mdev = rdev;
        } else if (S_ISFIFO(mode))
                inode->i_fop = &def_fifo_fops;
        else if (S_ISSOCK(mode))
diff -NurpP --minimal linux-2.6.22.10/fs/ioctl.c linux-2.6.22.10-vs2.3.0.29/fs/ioctl.c
--- linux-2.6.22.10/fs/ioctl.c  2007-07-09 13:19:24 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ioctl.c       2007-08-05 20:53:12 +0200
@@ -13,6 +13,9 @@
 #include <linux/security.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
+#include <linux/proc_fs.h>
+#include <linux/vserver/inode.h>
+#include <linux/vs_tag.h>
 
 #include <asm/uaccess.h>
 #include <asm/ioctls.h>
diff -NurpP --minimal linux-2.6.22.10/fs/ioprio.c linux-2.6.22.10-vs2.3.0.29/fs/ioprio.c
--- linux-2.6.22.10/fs/ioprio.c 2007-05-02 19:25:18 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ioprio.c      2007-08-05 20:53:12 +0200
@@ -25,6 +25,7 @@
 #include <linux/capability.h>
 #include <linux/syscalls.h>
 #include <linux/security.h>
+#include <linux/vs_base.h>
 
 static int set_task_ioprio(struct task_struct *task, int ioprio)
 {
@@ -103,6 +104,8 @@ asmlinkage long sys_ioprio_set(int which
                        else
                                pgrp = find_pid(who);
                        do_each_pid_task(pgrp, PIDTYPE_PGID, p) {
+                               if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
+                                       continue;
                                ret = set_task_ioprio(p, ioprio);
                                if (ret)
                                        break;
@@ -112,7 +115,7 @@ asmlinkage long sys_ioprio_set(int which
                        if (!who)
                                user = current->user;
                        else
-                               user = find_user(who);
+                               user = find_user(vx_current_xid(), who);
 
                        if (!user)
                                break;
@@ -190,6 +193,8 @@ asmlinkage long sys_ioprio_get(int which
                        else
                                pgrp = find_pid(who);
                        do_each_pid_task(pgrp, PIDTYPE_PGID, p) {
+                               if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
+                                       continue;
                                tmpio = get_task_ioprio(p);
                                if (tmpio < 0)
                                        continue;
@@ -203,7 +208,7 @@ asmlinkage long sys_ioprio_get(int which
                        if (!who)
                                user = current->user;
                        else
-                               user = find_user(who);
+                               user = find_user(vx_current_xid(), who);
 
                        if (!user)
                                break;
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/dir.c linux-2.6.22.10-vs2.3.0.29/fs/jffs2/dir.c
--- linux-2.6.22.10/fs/jffs2/dir.c      2007-07-09 13:19:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/dir.c   2007-10-05 15:07:22 +0200
@@ -32,7 +32,9 @@ static int jffs2_mkdir (struct inode *,s
 static int jffs2_rmdir (struct inode *,struct dentry *);
 static int jffs2_mknod (struct inode *,struct dentry *,int,dev_t);
 static int jffs2_rename (struct inode *, struct dentry *,
-                        struct inode *, struct dentry *);
+                        struct inode *, struct dentry *);
+
+extern int jffs2_sync_flags(struct inode *);
 
 const struct file_operations jffs2_dir_operations =
 {
@@ -56,6 +58,7 @@ const struct inode_operations jffs2_dir_
        .rename =       jffs2_rename,
        .permission =   jffs2_permission,
        .setattr =      jffs2_setattr,
+       .sync_flags =   jffs2_sync_flags,
        .setxattr =     jffs2_setxattr,
        .getxattr =     jffs2_getxattr,
        .listxattr =    jffs2_listxattr,
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/file.c linux-2.6.22.10-vs2.3.0.29/fs/jffs2/file.c
--- linux-2.6.22.10/fs/jffs2/file.c     2007-07-09 13:19:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/file.c  2007-10-01 20:52:25 +0200
@@ -17,6 +17,7 @@
 #include <linux/highmem.h>
 #include <linux/crc32.h>
 #include <linux/jffs2.h>
+#include <linux/vs_tag.h>
 #include "nodelist.h"
 
 static int jffs2_commit_write (struct file *filp, struct page *pg,
@@ -25,6 +26,9 @@ static int jffs2_prepare_write (struct f
                                unsigned start, unsigned end);
 static int jffs2_readpage (struct file *filp, struct page *pg);
 
+extern int jffs2_sync_flags(struct inode *);
+
+
 int jffs2_fsync(struct file *filp, struct dentry *dentry, int datasync)
 {
        struct inode *inode = dentry->d_inode;
@@ -47,7 +51,9 @@ const struct file_operations jffs2_file_
        .ioctl =        jffs2_ioctl,
        .mmap =         generic_file_readonly_mmap,
        .fsync =        jffs2_fsync,
-       .sendfile =     generic_file_sendfile
+       .sendfile =     generic_file_sendfile,
+       .splice_read =  generic_file_splice_read,
+       .splice_write = generic_file_splice_write
 };
 
 /* jffs2_file_inode_operations */
@@ -56,6 +62,7 @@ const struct inode_operations jffs2_file
 {
        .permission =   jffs2_permission,
        .setattr =      jffs2_setattr,
+       .sync_flags =   jffs2_sync_flags,
        .setxattr =     jffs2_setxattr,
        .getxattr =     jffs2_getxattr,
        .listxattr =    jffs2_listxattr,
@@ -157,12 +164,14 @@ static int jffs2_prepare_write (struct f
                ri.mode = cpu_to_jemode(inode->i_mode);
                ri.uid = cpu_to_je16(inode->i_uid);
                ri.gid = cpu_to_je16(inode->i_gid);
+               ri.tag = cpu_to_je16(TAGINO_TAG(DX_TAG(inode), inode->i_tag));
                ri.isize = cpu_to_je32(max((uint32_t)inode->i_size, pageofs));
                ri.atime = ri.ctime = ri.mtime = cpu_to_je32(get_seconds());
                ri.offset = cpu_to_je32(inode->i_size);
                ri.dsize = cpu_to_je32(pageofs - inode->i_size);
                ri.csize = cpu_to_je32(0);
                ri.compr = JFFS2_COMPR_ZERO;
+               ri.flags = cpu_to_je16(f->flags);
                ri.node_crc = cpu_to_je32(crc32(0, &ri, sizeof(ri)-8));
                ri.data_crc = cpu_to_je32(0);
 
@@ -248,8 +257,10 @@ static int jffs2_commit_write (struct fi
        ri->mode = cpu_to_jemode(inode->i_mode);
        ri->uid = cpu_to_je16(inode->i_uid);
        ri->gid = cpu_to_je16(inode->i_gid);
+       ri->tag = cpu_to_je16(TAGINO_TAG(DX_TAG(inode), inode->i_tag));
        ri->isize = cpu_to_je32((uint32_t)inode->i_size);
        ri->atime = ri->ctime = ri->mtime = cpu_to_je32(get_seconds());
+       ri->flags = cpu_to_je16(f->flags);
 
        /* In 2.4, it was already kmapped by generic_file_write(). Doesn't
           hurt to do it again. The alternative is ifdefs, which are ugly. */
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/fs.c linux-2.6.22.10-vs2.3.0.29/fs/jffs2/fs.c
--- linux-2.6.22.10/fs/jffs2/fs.c       2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/fs.c    2007-09-30 14:58:01 +0200
@@ -20,6 +20,7 @@
 #include <linux/vmalloc.h>
 #include <linux/vfs.h>
 #include <linux/crc32.h>
+#include <linux/vs_tag.h>
 #include "nodelist.h"
 
 static int jffs2_flash_setup(struct jffs2_sb_info *c);
@@ -97,6 +98,7 @@ static int jffs2_do_setattr (struct inod
 
        ri->uid = cpu_to_je16((ivalid & ATTR_UID)?iattr->ia_uid:inode->i_uid);
        ri->gid = cpu_to_je16((ivalid & ATTR_GID)?iattr->ia_gid:inode->i_gid);
+       ri->tag = cpu_to_je16((ivalid & ATTR_TAG)?iattr->ia_tag:inode->i_tag);
 
        if (ivalid & ATTR_MODE)
                if (iattr->ia_mode & S_ISGID &&
@@ -116,6 +118,8 @@ static int jffs2_do_setattr (struct inod
        ri->offset = cpu_to_je32(0);
        ri->csize = ri->dsize = cpu_to_je32(mdatalen);
        ri->compr = JFFS2_COMPR_NONE;
+       ri->flags = cpu_to_je16(f->flags);
+
        if (ivalid & ATTR_SIZE && inode->i_size < iattr->ia_size) {
                /* It's an extension. Make it a hole node */
                ri->compr = JFFS2_COMPR_ZERO;
@@ -145,6 +149,7 @@ static int jffs2_do_setattr (struct inod
        inode->i_mode = jemode_to_cpu(ri->mode);
        inode->i_uid = je16_to_cpu(ri->uid);
        inode->i_gid = je16_to_cpu(ri->gid);
+       inode->i_tag = INOTAG_TAG(DX_TAG(inode), 0, 0, je16_to_cpu(ri->tag));
 
 
        old_metadata = f->metadata;
@@ -179,6 +184,48 @@ static int jffs2_do_setattr (struct inod
        return 0;
 }
 
+void jffs2_set_inode_flags(struct inode *inode)
+{
+       struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+       unsigned int flags = f->flags;
+
+       inode->i_flags &= ~(JFFS2_INO_FLAG_IMMUTABLE |
+               JFFS2_INO_FLAG_IUNLINK | JFFS2_INO_FLAG_BARRIER);
+
+       if (flags & JFFS2_INO_FLAG_IMMUTABLE)
+               inode->i_flags |= S_IMMUTABLE;
+       if (flags & JFFS2_INO_FLAG_IUNLINK)
+               inode->i_flags |= S_IUNLINK;
+       if (flags & JFFS2_INO_FLAG_BARRIER)
+               inode->i_flags |= S_BARRIER;
+}
+
+int jffs2_sync_flags(struct inode *inode)
+{
+       struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+       unsigned int oldflags, newflags;
+
+       oldflags = f->flags;
+       newflags = oldflags & ~(JFFS2_INO_FLAG_IMMUTABLE |
+               JFFS2_INO_FLAG_IUNLINK | JFFS2_INO_FLAG_BARRIER);
+
+       if (IS_IMMUTABLE(inode))
+               newflags |= JFFS2_INO_FLAG_IMMUTABLE;
+       if (IS_IUNLINK(inode))
+               newflags |= JFFS2_INO_FLAG_IUNLINK;
+       if (IS_BARRIER(inode))
+               newflags |= JFFS2_INO_FLAG_BARRIER;
+
+       if (oldflags ^ newflags) {
+               f->flags = newflags;
+               inode->i_ctime = CURRENT_TIME;
+               /* strange requirement, see jffs2_dirty_inode() */
+               inode->i_state |= I_DIRTY_DATASYNC;
+               mark_inode_dirty(inode);
+       }
+       return 0;
+}
+
 int jffs2_setattr(struct dentry *dentry, struct iattr *iattr)
 {
        int rc;
@@ -254,6 +301,8 @@ void jffs2_read_inode (struct inode *ino
        inode->i_mode = jemode_to_cpu(latest_node.mode);
        inode->i_uid = je16_to_cpu(latest_node.uid);
        inode->i_gid = je16_to_cpu(latest_node.gid);
+       inode->i_tag = INOTAG_TAG(DX_TAG(inode), 0, 0,
+               je16_to_cpu(latest_node.tag));
        inode->i_size = je32_to_cpu(latest_node.isize);
        inode->i_atime = ITIME(je32_to_cpu(latest_node.atime));
        inode->i_mtime = ITIME(je32_to_cpu(latest_node.mtime));
@@ -285,6 +334,7 @@ void jffs2_read_inode (struct inode *ino
 
                inode->i_op = &jffs2_dir_inode_operations;
                inode->i_fop = &jffs2_dir_operations;
+               f->flags = je16_to_cpu(latest_node.flags);
                break;
        }
        case S_IFREG:
@@ -292,6 +342,7 @@ void jffs2_read_inode (struct inode *ino
                inode->i_fop = &jffs2_file_operations;
                inode->i_mapping->a_ops = &jffs2_file_address_operations;
                inode->i_mapping->nrpages = 0;
+               f->flags = je16_to_cpu(latest_node.flags);
                break;
 
        case S_IFBLK:
@@ -328,7 +379,7 @@ void jffs2_read_inode (struct inode *ino
        default:
                printk(KERN_WARNING "jffs2_read_inode(): Bogus imode %o for ino %lu\n", inode->i_mode, (unsigned long)inode->i_ino);
        }
-
+       jffs2_set_inode_flags(inode);
        up(&f->sem);
 
        D1(printk(KERN_DEBUG "jffs2_read_inode() returning\n"));
@@ -345,10 +396,11 @@ void jffs2_dirty_inode(struct inode *ino
 
        D1(printk(KERN_DEBUG "jffs2_dirty_inode() calling setattr() for ino #%lu\n", inode->i_ino));
 
-       iattr.ia_valid = ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_MTIME|ATTR_CTIME;
+       iattr.ia_valid = ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_MTIME|ATTR_CTIME|ATTR_TAG;
        iattr.ia_mode = inode->i_mode;
        iattr.ia_uid = inode->i_uid;
        iattr.ia_gid = inode->i_gid;
+       iattr.ia_tag = inode->i_tag;
        iattr.ia_atime = inode->i_atime;
        iattr.ia_mtime = inode->i_mtime;
        iattr.ia_ctime = inode->i_ctime;
@@ -422,6 +474,7 @@ struct inode *jffs2_new_inode (struct in
 
        memset(ri, 0, sizeof(*ri));
        /* Set OS-specific defaults for new inodes */
+       ri->tag = cpu_to_je16(dx_current_tag());
        ri->uid = cpu_to_je16(current->fsuid);
 
        if (dir_i->i_mode & S_ISGID) {
@@ -443,14 +496,16 @@ struct inode *jffs2_new_inode (struct in
        inode->i_mode = jemode_to_cpu(ri->mode);
        inode->i_gid = je16_to_cpu(ri->gid);
        inode->i_uid = je16_to_cpu(ri->uid);
+       inode->i_tag = INOTAG_TAG(DX_TAG(inode), 0, 0, je16_to_cpu(ri->tag));
        inode->i_atime = inode->i_ctime = inode->i_mtime = CURRENT_TIME_SEC;
        ri->atime = ri->mtime = ri->ctime = cpu_to_je32(I_SEC(inode->i_mtime));
 
        inode->i_blocks = 0;
        inode->i_size = 0;
 
+       f->flags = je16_to_cpu(ri->flags);
+       jffs2_set_inode_flags(inode);
        insert_inode_hash(inode);
-
        return inode;
 }
 
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/gc.c linux-2.6.22.10-vs2.3.0.29/fs/jffs2/gc.c
--- linux-2.6.22.10/fs/jffs2/gc.c       2007-07-09 13:19:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/gc.c    2007-08-05 20:53:12 +0200
@@ -735,6 +735,7 @@ static int jffs2_garbage_collect_metadat
        ri.mode = cpu_to_jemode(JFFS2_F_I_MODE(f));
        ri.uid = cpu_to_je16(JFFS2_F_I_UID(f));
        ri.gid = cpu_to_je16(JFFS2_F_I_GID(f));
+       ri.tag = cpu_to_je16(JFFS2_F_I_TAG(f));
        ri.isize = cpu_to_je32(ilen);
        ri.atime = cpu_to_je32(JFFS2_F_I_ATIME(f));
        ri.ctime = cpu_to_je32(JFFS2_F_I_CTIME(f));
@@ -998,6 +999,7 @@ static int jffs2_garbage_collect_hole(st
        ri.mode = cpu_to_jemode(JFFS2_F_I_MODE(f));
        ri.uid = cpu_to_je16(JFFS2_F_I_UID(f));
        ri.gid = cpu_to_je16(JFFS2_F_I_GID(f));
+       ri.tag = cpu_to_je16(JFFS2_F_I_TAG(f));
        ri.isize = cpu_to_je32(ilen);
        ri.atime = cpu_to_je32(JFFS2_F_I_ATIME(f));
        ri.ctime = cpu_to_je32(JFFS2_F_I_CTIME(f));
@@ -1256,6 +1258,7 @@ static int jffs2_garbage_collect_dnode(s
                ri.mode = cpu_to_jemode(JFFS2_F_I_MODE(f));
                ri.uid = cpu_to_je16(JFFS2_F_I_UID(f));
                ri.gid = cpu_to_je16(JFFS2_F_I_GID(f));
+               ri.tag = cpu_to_je16(JFFS2_F_I_TAG(f));
                ri.isize = cpu_to_je32(JFFS2_F_I_SIZE(f));
                ri.atime = cpu_to_je32(JFFS2_F_I_ATIME(f));
                ri.ctime = cpu_to_je32(JFFS2_F_I_CTIME(f));
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/ioctl.c linux-2.6.22.10-vs2.3.0.29/fs/jffs2/ioctl.c
--- linux-2.6.22.10/fs/jffs2/ioctl.c    2007-07-09 13:19:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/ioctl.c 2007-08-05 20:53:12 +0200
@@ -10,12 +10,67 @@
  */
 
 #include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/mount.h>
+#include <linux/jffs2.h>
+#include <linux/uaccess.h>
+#include <linux/vs_base.h>
+#include "jffs2_fs_sb.h"
+#include "jffs2_fs_i.h"
+#include "acl.h"
+#include "os-linux.h"
+
+extern void jffs2_set_inode_flags(struct inode *);
 
 int jffs2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
                unsigned long arg)
 {
-       /* Later, this will provide for lsattr.jffs2 and chattr.jffs2, which
-          will include compression support etc. */
-       return -ENOTTY;
+       struct jffs2_inode_info *j = JFFS2_INODE_INFO(inode);
+       unsigned int flags, oldflags, newflags;
+
+       switch (cmd) {
+       case JFFS2_IOC_GETFLAGS:
+               flags = j->flags & JFFS2_USER_VISIBLE;
+               return put_user(flags, (int __user *) arg);
+
+       case JFFS2_IOC_SETFLAGS:
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
+                       return -EROFS;
+
+               if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
+                       return -EACCES;
+
+               if (get_user(flags, (int __user *) arg))
+                       return -EFAULT;
+
+               oldflags = j->flags;
+               newflags = flags & JFFS2_USER_MODIFIABLE;
+               newflags |= oldflags & ~JFFS2_USER_MODIFIABLE;
+
+               /*
+                * The IMMUTABLE flags can only be changed by
+                * the relevant capability.
+                */
+               if (((oldflags ^ newflags) &
+                       (JFFS2_INO_FLAG_IMMUTABLE | JFFS2_INO_FLAG_IUNLINK)) ||
+                       (oldflags & JFFS2_INO_FLAG_IMMUTABLE)) {
+                       if (!capable(CAP_LINUX_IMMUTABLE))
+                               return -EPERM;
+               }
+
+               if (oldflags ^ newflags) {
+                       j->flags = newflags;
+                       inode->i_ctime = CURRENT_TIME;
+                       /* strange requirement, see jffs2_dirty_inode() */
+                       inode->i_state |= I_DIRTY_DATASYNC;
+                       mark_inode_dirty(inode);
+                       jffs2_set_inode_flags(inode);
+               }
+               return 0;
+
+       default:
+               return -ENOTTY;
+       }
 }
 
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/jffs2_fs_sb.h linux-2.6.22.10-vs2.3.0.29/fs/jffs2/jffs2_fs_sb.h
--- linux-2.6.22.10/fs/jffs2/jffs2_fs_sb.h      2007-07-09 13:19:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/jffs2_fs_sb.h   2007-08-05 20:53:12 +0200
@@ -39,6 +39,7 @@ struct jffs2_sb_info {
        uint32_t checked_ino;
 
        unsigned int flags;
+       unsigned int s_mount_opt;
 
        struct task_struct *gc_task;    /* GC task struct */
        struct completion gc_thread_start; /* GC thread start completion */
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/nodelist.h linux-2.6.22.10-vs2.3.0.29/fs/jffs2/nodelist.h
--- linux-2.6.22.10/fs/jffs2/nodelist.h 2007-07-09 13:19:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/nodelist.h      2007-08-05 20:53:12 +0200
@@ -47,25 +47,25 @@
 #elif defined(JFFS2_BIG_ENDIAN)
 #define cpu_to_je16(x) ((jint16_t){cpu_to_be16(x)})
 #define cpu_to_je32(x) ((jint32_t){cpu_to_be32(x)})
-#define cpu_to_jemode(x) ((jmode_t){cpu_to_be32(os_to_jffs2_mode(x))})
+#define cpu_to_jemode(x) ((jmode_t){cpu_to_be16(os_to_jffs2_mode(x))})
 
 #define constant_cpu_to_je16(x) ((jint16_t){__constant_cpu_to_be16(x)})
 #define constant_cpu_to_je32(x) ((jint32_t){__constant_cpu_to_be32(x)})
 
 #define je16_to_cpu(x) (be16_to_cpu(x.v16))
 #define je32_to_cpu(x) (be32_to_cpu(x.v32))
-#define jemode_to_cpu(x) (be32_to_cpu(jffs2_to_os_mode((x).m)))
+#define jemode_to_cpu(x) (be16_to_cpu(jffs2_to_os_mode((x).m)))
 #elif defined(JFFS2_LITTLE_ENDIAN)
 #define cpu_to_je16(x) ((jint16_t){cpu_to_le16(x)})
 #define cpu_to_je32(x) ((jint32_t){cpu_to_le32(x)})
-#define cpu_to_jemode(x) ((jmode_t){cpu_to_le32(os_to_jffs2_mode(x))})
+#define cpu_to_jemode(x) ((jmode_t){cpu_to_le16(os_to_jffs2_mode(x))})
 
 #define constant_cpu_to_je16(x) ((jint16_t){__constant_cpu_to_le16(x)})
 #define constant_cpu_to_je32(x) ((jint32_t){__constant_cpu_to_le32(x)})
 
 #define je16_to_cpu(x) (le16_to_cpu(x.v16))
 #define je32_to_cpu(x) (le32_to_cpu(x.v32))
-#define jemode_to_cpu(x) (le32_to_cpu(jffs2_to_os_mode((x).m)))
+#define jemode_to_cpu(x) (le16_to_cpu(jffs2_to_os_mode((x).m)))
 #else
 #error wibble
 #endif
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/os-linux.h linux-2.6.22.10-vs2.3.0.29/fs/jffs2/os-linux.h
--- linux-2.6.22.10/fs/jffs2/os-linux.h 2007-07-09 13:19:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/os-linux.h      2007-08-05 20:53:12 +0200
@@ -29,6 +29,7 @@ struct kvec;
 #define JFFS2_F_I_MODE(f) (OFNI_EDONI_2SFFJ(f)->i_mode)
 #define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid)
 #define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid)
+#define JFFS2_F_I_TAG(f) (OFNI_EDONI_2SFFJ(f)->i_tag)
 #define JFFS2_F_I_RDEV(f) (OFNI_EDONI_2SFFJ(f)->i_rdev)
 
 #define ITIME(sec) ((struct timespec){sec, 0})
@@ -204,6 +205,9 @@ int jffs2_flash_direct_writev(struct jff
 int jffs2_flash_direct_write(struct jffs2_sb_info *c, loff_t ofs, size_t len,
                        size_t *retlen, const u_char *buf);
 
+#define JFFS2_IOC_GETFLAGS             FS_IOC_GETFLAGS
+#define JFFS2_IOC_SETFLAGS             FS_IOC_SETFLAGS
+
 #endif /* __JFFS2_OS_LINUX_H__ */
 
 
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/readinode.c linux-2.6.22.10-vs2.3.0.29/fs/jffs2/readinode.c
--- linux-2.6.22.10/fs/jffs2/readinode.c        2007-07-09 13:19:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/readinode.c     2007-08-05 20:53:12 +0200
@@ -1182,6 +1182,8 @@ static int jffs2_do_read_inode_internal(
                latest_node->isize = cpu_to_je32(0);
                latest_node->gid = cpu_to_je16(0);
                latest_node->uid = cpu_to_je16(0);
+               latest_node->tag = cpu_to_je16(0);
+               latest_node->flags = cpu_to_je16(0);
                if (f->inocache->state == INO_STATE_READING)
                        jffs2_set_inocache_state(c, f->inocache, INO_STATE_PRESENT);
                return 0;
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/super.c linux-2.6.22.10-vs2.3.0.29/fs/jffs2/super.c
--- linux-2.6.22.10/fs/jffs2/super.c    2007-07-09 13:19:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/super.c 2007-08-05 20:53:12 +0200
@@ -22,6 +22,7 @@
 #include <linux/mtd/super.h>
 #include <linux/ctype.h>
 #include <linux/namei.h>
+#include <linux/parser.h>
 #include "compr.h"
 #include "nodelist.h"
 
@@ -75,6 +76,49 @@ static const struct super_operations jff
        .sync_fs =      jffs2_sync_fs,
 };
 
+enum {
+       Opt_tag, Opt_notag, Opt_ignore, Opt_err
+};
+
+static match_table_t tokens = {
+       {Opt_tag, "tag"},
+       {Opt_notag, "notag"},
+       {Opt_err, NULL}
+};
+
+static int parse_options (char * options,
+                         struct jffs2_sb_info *sbi)
+{
+       char * p;
+       substring_t args[MAX_OPT_ARGS];
+
+       if (!options)
+               return 1;
+
+       while ((p = strsep (&options, ",")) != NULL) {
+               int token;
+               if (!*p)
+                       continue;
+
+               token = match_token(p, tokens, args);
+               switch (token) {
+#ifndef CONFIG_TAGGING_NONE
+               case Opt_tag:
+                       set_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+               case Opt_notag:
+                       clear_opt (sbi->s_mount_opt, TAGGED);
+                       break;
+#endif
+               case Opt_ignore:
+                       break;
+               default:
+                       return 0;
+               }
+       }
+       return 1;
+}
+
 /*
  * fill in the superblock
  */
@@ -109,6 +153,12 @@ static int jffs2_fill_super(struct super
 #ifdef CONFIG_JFFS2_FS_POSIX_ACL
        sb->s_flags |= MS_POSIXACL;
 #endif
+       if (!parse_options ((char *) data, c))
+               return -EINVAL;
+
+       if (c->s_mount_opt & JFFS2_MOUNT_TAGGED)
+               sb->s_flags |= MS_TAGGED;
+
        return jffs2_do_fill_super(sb, data, silent);
 }
 
diff -NurpP --minimal linux-2.6.22.10/fs/jffs2/write.c linux-2.6.22.10-vs2.3.0.29/fs/jffs2/write.c
--- linux-2.6.22.10/fs/jffs2/write.c    2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/jffs2/write.c 2007-09-05 03:06:11 +0200
@@ -44,6 +44,7 @@ int jffs2_do_new_inode(struct jffs2_sb_i
        ri->totlen = cpu_to_je32(PAD(sizeof(*ri)));
        ri->hdr_crc = cpu_to_je32(crc32(0, ri, sizeof(struct jffs2_unknown_node)-4));
        ri->mode = cpu_to_jemode(mode);
+       ri->flags = cpu_to_je16(0);
 
        f->highest_version = 1;
        ri->version = cpu_to_je32(f->highest_version);
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/acl.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/acl.c
--- linux-2.6.22.10/fs/jfs/acl.c        2006-11-30 21:19:25 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/acl.c     2007-08-05 20:53:12 +0200
@@ -232,7 +232,8 @@ int jfs_setattr(struct dentry *dentry, s
                return rc;
 
        if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
-           (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
+           (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) ||
+           (iattr->ia_valid & ATTR_TAG && iattr->ia_tag != inode->i_tag)) {
                if (DQUOT_TRANSFER(inode, iattr))
                        return -EDQUOT;
        }
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/file.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/file.c
--- linux-2.6.22.10/fs/jfs/file.c       2007-05-02 19:25:18 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/file.c    2007-09-12 20:04:16 +0200
@@ -98,6 +98,7 @@ const struct inode_operations jfs_file_i
        .setattr        = jfs_setattr,
        .permission     = jfs_permission,
 #endif
+       .sync_flags     = jfs_sync_flags,
 };
 
 const struct file_operations jfs_file_operations = {
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/inode.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/inode.c
--- linux-2.6.22.10/fs/jfs/inode.c      2007-07-09 13:19:26 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/inode.c   2007-08-05 20:53:12 +0200
@@ -22,6 +22,7 @@
 #include <linux/buffer_head.h>
 #include <linux/pagemap.h>
 #include <linux/quotaops.h>
+#include <linux/vs_dlimit.h>
 #include "jfs_incore.h"
 #include "jfs_inode.h"
 #include "jfs_filsys.h"
@@ -143,6 +144,7 @@ void jfs_delete_inode(struct inode *inod
                DQUOT_INIT(inode);
                DQUOT_FREE_INODE(inode);
                DQUOT_DROP(inode);
+               DLIMIT_FREE_INODE(inode);
        }
 
        clear_inode(inode);
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/ioctl.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/ioctl.c
--- linux-2.6.22.10/fs/jfs/ioctl.c      2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/ioctl.c   2007-08-05 20:53:12 +0200
@@ -10,6 +10,7 @@
 #include <linux/capability.h>
 #include <linux/time.h>
 #include <linux/sched.h>
+#include <linux/mount.h>
 #include <asm/current.h>
 #include <asm/uaccess.h>
 
@@ -66,7 +67,8 @@ int jfs_ioctl(struct inode * inode, stru
        case JFS_IOC_SETFLAGS: {
                unsigned int oldflags;
 
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
 
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
@@ -87,8 +89,8 @@ int jfs_ioctl(struct inode * inode, stru
                 * the relevant capability.
                 */
                if ((oldflags & JFS_IMMUTABLE_FL) ||
-                       ((flags ^ oldflags) &
-                       (JFS_APPEND_FL | JFS_IMMUTABLE_FL))) {
+                       ((flags ^ oldflags) & (JFS_APPEND_FL |
+                       JFS_IMMUTABLE_FL | JFS_IUNLINK_FL))) {
                        if (!capable(CAP_LINUX_IMMUTABLE))
                                return -EPERM;
                }
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/jfs_dinode.h linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_dinode.h
--- linux-2.6.22.10/fs/jfs/jfs_dinode.h 2006-11-30 21:19:25 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_dinode.h      2007-08-05 20:53:12 +0200
@@ -162,9 +162,12 @@ struct dinode {
 #define JFS_APPEND_FL          0x01000000 /* writes to file may only append */
 #define JFS_IMMUTABLE_FL       0x02000000 /* Immutable file */
 
-#define JFS_FL_USER_VISIBLE    0x03F80000
+#define JFS_BARRIER_FL         0x04000000 /* Barrier for chroot() */
+#define JFS_IUNLINK_FL         0x08000000 /* Immutable unlink */
+
+#define JFS_FL_USER_VISIBLE    0x0FF80000
 #define JFS_FL_USER_MODIFIABLE 0x03F80000
-#define JFS_FL_INHERIT         0x03C80000
+#define JFS_FL_INHERIT         0x0BC80000
 
 /* These are identical to EXT[23]_IOC_GETFLAGS/SETFLAGS */
 #define JFS_IOC_GETFLAGS       _IOR('f', 1, long)
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/jfs_dtree.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_dtree.c
--- linux-2.6.22.10/fs/jfs/jfs_dtree.c  2007-02-06 03:01:24 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_dtree.c       2007-08-05 20:53:12 +0200
@@ -102,6 +102,7 @@
 
 #include <linux/fs.h>
 #include <linux/quotaops.h>
+#include <linux/vs_dlimit.h>
 #include "jfs_incore.h"
 #include "jfs_superblock.h"
 #include "jfs_filsys.h"
@@ -383,10 +384,10 @@ static u32 add_index(tid_t tid, struct i
                 */
                if (DQUOT_ALLOC_BLOCK(ip, sbi->nbperpage))
                        goto clean_up;
-               if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) {
-                       DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
-                       goto clean_up;
-               }
+               if (DLIMIT_ALLOC_BLOCK(ip, sbi->nbperpage))
+                       goto clean_up_dquot;
+               if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr))
+                       goto clean_up_dlimit;
 
                /*
                 * Save the table, we're going to overwrite it with the
@@ -479,6 +480,12 @@ static u32 add_index(tid_t tid, struct i
 
        return index;
 
+      clean_up_dlimit:
+       DLIMIT_FREE_BLOCK(ip, sbi->nbperpage);
+
+      clean_up_dquot:
+       DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
+
       clean_up:
 
        jfs_ip->next_index--;
@@ -952,6 +959,7 @@ static int dtSplitUp(tid_t tid,
        struct tlock *tlck;
        struct lv *lv;
        int quota_allocation = 0;
+       int dlimit_allocation = 0;
 
        /* get split page */
        smp = split->mp;
@@ -1036,6 +1044,12 @@ static int dtSplitUp(tid_t tid,
                }
                quota_allocation += n;
 
+               if (DLIMIT_ALLOC_BLOCK(ip, n)) {
+                       rc = -ENOSPC;
+                       goto extendOut;
+               }
+               dlimit_allocation += n;
+
                if ((rc = dbReAlloc(sbi->ipbmap, xaddr, (s64) xlen,
                                    (s64) n, &nxaddr)))
                        goto extendOut;
@@ -1309,6 +1323,9 @@ static int dtSplitUp(tid_t tid,
       freeKeyName:
        kfree(key.name);
 
+       /* Rollback dlimit allocation */
+       if (rc && dlimit_allocation)
+               DLIMIT_FREE_BLOCK(ip, dlimit_allocation);
        /* Rollback quota allocation */
        if (rc && quota_allocation)
                DQUOT_FREE_BLOCK(ip, quota_allocation);
@@ -1376,6 +1393,12 @@ static int dtSplitPage(tid_t tid, struct
                release_metapage(rmp);
                return -EDQUOT;
        }
+       /* Allocate blocks to dlimit. */
+       if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+               DQUOT_FREE_BLOCK(ip, lengthPXD(pxd));
+               release_metapage(rmp);
+               return -ENOSPC;
+       }
 
        jfs_info("dtSplitPage: ip:0x%p smp:0x%p rmp:0x%p", ip, smp, rmp);
 
@@ -1926,6 +1949,12 @@ static int dtSplitRoot(tid_t tid,
                release_metapage(rmp);
                return -EDQUOT;
        }
+       /* Allocate blocks to dlimit. */
+       if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+               DQUOT_FREE_BLOCK(ip, lengthPXD(pxd));
+               release_metapage(rmp);
+               return -ENOSPC;
+       }
 
        BT_MARK_DIRTY(rmp, ip);
        /*
@@ -2292,6 +2321,8 @@ static int dtDeleteUp(tid_t tid, struct 
 
        xlen = lengthPXD(&fp->header.self);
 
+       /* Free dlimit allocation. */
+       DLIMIT_FREE_BLOCK(ip, xlen);
        /* Free quota allocation. */
        DQUOT_FREE_BLOCK(ip, xlen);
 
@@ -2368,6 +2399,8 @@ static int dtDeleteUp(tid_t tid, struct 
 
                                xlen = lengthPXD(&p->header.self);
 
+                               /* Free dlimit allocation */
+                               DLIMIT_FREE_BLOCK(ip, xlen);
                                /* Free quota allocation */
                                DQUOT_FREE_BLOCK(ip, xlen);
 
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/jfs_extent.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_extent.c
--- linux-2.6.22.10/fs/jfs/jfs_extent.c 2006-11-30 21:19:25 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_extent.c      2007-08-05 20:53:12 +0200
@@ -18,6 +18,7 @@
 
 #include <linux/fs.h>
 #include <linux/quotaops.h>
+#include <linux/vs_dlimit.h>
 #include "jfs_incore.h"
 #include "jfs_inode.h"
 #include "jfs_superblock.h"
@@ -147,6 +148,14 @@ extAlloc(struct inode *ip, s64 xlen, s64
                return -EDQUOT;
        }
 
+       /* Allocate blocks to dlimit. */
+       if (DLIMIT_ALLOC_BLOCK(ip, nxlen)) {
+               DQUOT_FREE_BLOCK(ip, nxlen);
+               dbFree(ip, nxaddr, (s64) nxlen);
+               mutex_unlock(&JFS_IP(ip)->commit_mutex);
+               return -ENOSPC;
+       }
+
        /* determine the value of the extent flag */
        xflag = abnr ? XAD_NOTRECORDED : 0;
 
@@ -164,6 +173,7 @@ extAlloc(struct inode *ip, s64 xlen, s64
         */
        if (rc) {
                dbFree(ip, nxaddr, nxlen);
+               DLIMIT_FREE_BLOCK(ip, nxlen);
                DQUOT_FREE_BLOCK(ip, nxlen);
                mutex_unlock(&JFS_IP(ip)->commit_mutex);
                return (rc);
@@ -261,6 +271,13 @@ int extRealloc(struct inode *ip, s64 nxl
                mutex_unlock(&JFS_IP(ip)->commit_mutex);
                return -EDQUOT;
        }
+       /* Allocate blocks to dlimit. */
+       if (DLIMIT_ALLOC_BLOCK(ip, nxlen)) {
+               DQUOT_FREE_BLOCK(ip, nxlen);
+               dbFree(ip, nxaddr, (s64) nxlen);
+               up(&JFS_IP(ip)->commit_sem);
+               return -ENOSPC;
+       }
 
        delta = nxlen - xlen;
 
@@ -297,6 +314,7 @@ int extRealloc(struct inode *ip, s64 nxl
                /* extend the extent */
                if ((rc = xtExtend(0, ip, xoff + xlen, (int) nextend, 0))) {
                        dbFree(ip, xaddr + xlen, delta);
+                       DLIMIT_FREE_BLOCK(ip, nxlen);
                        DQUOT_FREE_BLOCK(ip, nxlen);
                        goto exit;
                }
@@ -308,6 +326,7 @@ int extRealloc(struct inode *ip, s64 nxl
                 */
                if ((rc = xtTailgate(0, ip, xoff, (int) ntail, nxaddr, 0))) {
                        dbFree(ip, nxaddr, nxlen);
+                       DLIMIT_FREE_BLOCK(ip, nxlen);
                        DQUOT_FREE_BLOCK(ip, nxlen);
                        goto exit;
                }
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/jfs_filsys.h linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_filsys.h
--- linux-2.6.22.10/fs/jfs/jfs_filsys.h 2007-02-06 03:01:24 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_filsys.h      2007-08-05 20:53:12 +0200
@@ -264,6 +264,7 @@
 #define JFS_NAME_MAX   255
 #define JFS_PATH_MAX   BPSIZE
 
+#define JFS_TAGGED             0x00800000      /* Context Tagging */
 
 /*
  *     file system state (superblock state)
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/jfs_imap.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_imap.c
--- linux-2.6.22.10/fs/jfs/jfs_imap.c   2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_imap.c        2007-08-05 20:53:12 +0200
@@ -45,6 +45,7 @@
 #include <linux/buffer_head.h>
 #include <linux/pagemap.h>
 #include <linux/quotaops.h>
+#include <linux/vs_tag.h>
 
 #include "jfs_incore.h"
 #include "jfs_inode.h"
@@ -3075,6 +3076,8 @@ static int copy_from_dinode(struct dinod
 {
        struct jfs_inode_info *jfs_ip = JFS_IP(ip);
        struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
+       uid_t uid;
+       gid_t gid;
 
        jfs_ip->fileset = le32_to_cpu(dip->di_fileset);
        jfs_ip->mode2 = le32_to_cpu(dip->di_mode);
@@ -3095,14 +3098,18 @@ static int copy_from_dinode(struct dinod
        }
        ip->i_nlink = le32_to_cpu(dip->di_nlink);
 
-       jfs_ip->saved_uid = le32_to_cpu(dip->di_uid);
+       uid = le32_to_cpu(dip->di_uid);
+       gid = le32_to_cpu(dip->di_gid);
+       ip->i_tag = INOTAG_TAG(DX_TAG(ip), uid, gid, 0);
+
+       jfs_ip->saved_uid = INOTAG_UID(DX_TAG(ip), uid, gid);
        if (sbi->uid == -1)
                ip->i_uid = jfs_ip->saved_uid;
        else {
                ip->i_uid = sbi->uid;
        }
 
-       jfs_ip->saved_gid = le32_to_cpu(dip->di_gid);
+       jfs_ip->saved_gid = INOTAG_GID(DX_TAG(ip), uid, gid);
        if (sbi->gid == -1)
                ip->i_gid = jfs_ip->saved_gid;
        else {
@@ -3167,14 +3174,12 @@ static void copy_to_dinode(struct dinode
        dip->di_size = cpu_to_le64(ip->i_size);
        dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks));
        dip->di_nlink = cpu_to_le32(ip->i_nlink);
-       if (sbi->uid == -1)
-               dip->di_uid = cpu_to_le32(ip->i_uid);
-       else
-               dip->di_uid = cpu_to_le32(jfs_ip->saved_uid);
-       if (sbi->gid == -1)
-               dip->di_gid = cpu_to_le32(ip->i_gid);
-       else
-               dip->di_gid = cpu_to_le32(jfs_ip->saved_gid);
+
+       dip->di_uid = cpu_to_le32(TAGINO_UID(DX_TAG(ip),
+               (sbi->uid == -1) ? ip->i_uid : jfs_ip->saved_uid, ip->i_tag));
+       dip->di_gid = cpu_to_le32(TAGINO_GID(DX_TAG(ip),
+               (sbi->gid == -1) ? ip->i_gid : jfs_ip->saved_gid, ip->i_tag));
+
        jfs_get_inode_flags(jfs_ip);
        /*
         * mode2 is only needed for storing the higher order bits.
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/jfs_inode.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_inode.c
--- linux-2.6.22.10/fs/jfs/jfs_inode.c  2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_inode.c       2007-08-05 20:53:12 +0200
@@ -18,6 +18,8 @@
 
 #include <linux/fs.h>
 #include <linux/quotaops.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vs_tag.h>
 #include "jfs_incore.h"
 #include "jfs_inode.h"
 #include "jfs_filsys.h"
@@ -30,19 +32,47 @@ void jfs_set_inode_flags(struct inode *i
 {
        unsigned int flags = JFS_IP(inode)->mode2;
 
-       inode->i_flags &= ~(S_IMMUTABLE | S_APPEND |
-               S_NOATIME | S_DIRSYNC | S_SYNC);
+       inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER |
+               S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
 
        if (flags & JFS_IMMUTABLE_FL)
                inode->i_flags |= S_IMMUTABLE;
+       if (flags & JFS_IUNLINK_FL)
+               inode->i_flags |= S_IUNLINK;
+       if (flags & JFS_BARRIER_FL)
+               inode->i_flags |= S_BARRIER;
+
+       if (flags & JFS_SYNC_FL)
+               inode->i_flags |= S_SYNC;
        if (flags & JFS_APPEND_FL)
                inode->i_flags |= S_APPEND;
        if (flags & JFS_NOATIME_FL)
                inode->i_flags |= S_NOATIME;
        if (flags & JFS_DIRSYNC_FL)
                inode->i_flags |= S_DIRSYNC;
-       if (flags & JFS_SYNC_FL)
-               inode->i_flags |= S_SYNC;
+}
+
+int jfs_sync_flags(struct inode *inode)
+{
+       unsigned int oldflags, newflags;
+
+       oldflags = JFS_IP(inode)->mode2;
+       newflags = oldflags & ~(JFS_IMMUTABLE_FL |
+               JFS_IUNLINK_FL | JFS_BARRIER_FL);
+
+       if (IS_IMMUTABLE(inode))
+               newflags |= JFS_IMMUTABLE_FL;
+       if (IS_IUNLINK(inode))
+               newflags |= JFS_IUNLINK_FL;
+       if (IS_BARRIER(inode))
+               newflags |= JFS_BARRIER_FL;
+
+       if (oldflags ^ newflags) {
+               JFS_IP(inode)->mode2 = newflags;
+               inode->i_ctime = CURRENT_TIME;
+               mark_inode_dirty(inode);
+       }
+       return 0;
 }
 
 void jfs_get_inode_flags(struct jfs_inode_info *jfs_ip)
@@ -108,10 +138,17 @@ struct inode *ialloc(struct inode *paren
        jfs_inode->saved_uid = inode->i_uid;
        jfs_inode->saved_gid = inode->i_gid;
 
+       inode->i_tag = dx_current_fstag(sb);
+       if (DLIMIT_ALLOC_INODE(inode)) {
+               iput(inode);
+               return ERR_PTR(-ENOSPC);
+       }
+
        /*
         * Allocate inode to quota.
         */
        if (DQUOT_ALLOC_INODE(inode)) {
+               DLIMIT_FREE_INODE(inode);
                DQUOT_DROP(inode);
                inode->i_flags |= S_NOQUOTA;
                inode->i_nlink = 0;
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/jfs_inode.h linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_inode.h
--- linux-2.6.22.10/fs/jfs/jfs_inode.h  2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_inode.h       2007-08-05 20:53:12 +0200
@@ -33,6 +33,7 @@ extern void jfs_free_zero_link(struct in
 extern struct dentry *jfs_get_parent(struct dentry *dentry);
 extern void jfs_get_inode_flags(struct jfs_inode_info *);
 extern void jfs_set_inode_flags(struct inode *);
+extern int jfs_sync_flags(struct inode *);
 extern int jfs_get_block(struct inode *, sector_t, struct buffer_head *, int);
 
 extern const struct address_space_operations jfs_aops;
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/jfs_xtree.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_xtree.c
--- linux-2.6.22.10/fs/jfs/jfs_xtree.c  2007-05-02 19:25:18 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/jfs_xtree.c       2007-08-05 20:53:12 +0200
@@ -21,6 +21,7 @@
 
 #include <linux/fs.h>
 #include <linux/quotaops.h>
+#include <linux/vs_dlimit.h>
 #include "jfs_incore.h"
 #include "jfs_filsys.h"
 #include "jfs_metapage.h"
@@ -846,7 +847,12 @@ int xtInsert(tid_t tid,            /* transaction 
                        hint = 0;
                if ((rc = DQUOT_ALLOC_BLOCK(ip, xlen)))
                        goto out;
+               if ((rc = DLIMIT_ALLOC_BLOCK(ip, xlen))) {
+                       DQUOT_FREE_BLOCK(ip, xlen);
+                       goto out;
+               }
                if ((rc = dbAlloc(ip, hint, (s64) xlen, &xaddr))) {
+                       DLIMIT_FREE_BLOCK(ip, xlen);
                        DQUOT_FREE_BLOCK(ip, xlen);
                        goto out;
                }
@@ -876,6 +882,7 @@ int xtInsert(tid_t tid,             /* transaction 
                        /* undo data extent allocation */
                        if (*xaddrp == 0) {
                                dbFree(ip, xaddr, (s64) xlen);
+                               DLIMIT_FREE_BLOCK(ip, xlen);
                                DQUOT_FREE_BLOCK(ip, xlen);
                        }
                        return rc;
@@ -1236,6 +1243,7 @@ xtSplitPage(tid_t tid, struct inode *ip,
        struct tlock *tlck;
        struct xtlock *sxtlck = NULL, *rxtlck = NULL;
        int quota_allocation = 0;
+       int dlimit_allocation = 0;
 
        smp = split->mp;
        sp = XT_PAGE(ip, smp);
@@ -1255,6 +1263,13 @@ xtSplitPage(tid_t tid, struct inode *ip,
 
        quota_allocation += lengthPXD(pxd);
 
+       /* Allocate blocks to dlimit. */
+       if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+              rc = -ENOSPC;
+              goto clean_up;
+       }
+       dlimit_allocation += lengthPXD(pxd);
+
        /*
         * allocate the new right page for the split
         */
@@ -1456,6 +1471,9 @@ xtSplitPage(tid_t tid, struct inode *ip,
 
       clean_up:
 
+       /* Rollback dlimit allocation. */
+       if (dlimit_allocation)
+               DLIMIT_FREE_BLOCK(ip, dlimit_allocation);
        /* Rollback quota allocation. */
        if (quota_allocation)
                DQUOT_FREE_BLOCK(ip, quota_allocation);
@@ -1520,6 +1538,12 @@ xtSplitRoot(tid_t tid,
                release_metapage(rmp);
                return -EDQUOT;
        }
+       /* Allocate blocks to dlimit. */
+       if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+               DQUOT_FREE_BLOCK(ip, lengthPXD(pxd));
+               release_metapage(rmp);
+               return -ENOSPC;
+       }
 
        jfs_info("xtSplitRoot: ip:0x%p rmp:0x%p", ip, rmp);
 
@@ -3951,6 +3975,8 @@ s64 xtTruncate(tid_t tid, struct inode *
        else
                ip->i_size = newsize;
 
+       /* update dlimit allocation to reflect freed blocks */
+       DLIMIT_FREE_BLOCK(ip, nfreed);
        /* update quota allocation to reflect freed blocks */
        DQUOT_FREE_BLOCK(ip, nfreed);
 
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/namei.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/namei.c
--- linux-2.6.22.10/fs/jfs/namei.c      2007-05-02 19:25:18 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/namei.c   2007-08-05 20:53:12 +0200
@@ -20,6 +20,7 @@
 #include <linux/fs.h>
 #include <linux/ctype.h>
 #include <linux/quotaops.h>
+#include <linux/vs_tag.h>
 #include "jfs_incore.h"
 #include "jfs_superblock.h"
 #include "jfs_inode.h"
@@ -1469,6 +1470,7 @@ static struct dentry *jfs_lookup(struct 
                return ERR_PTR(-EACCES);
        }
 
+       dx_propagate_tag(nd, ip);
        dentry = d_splice_alias(ip, dentry);
 
        if (dentry && (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2))
@@ -1521,6 +1523,7 @@ const struct inode_operations jfs_dir_in
        .setattr        = jfs_setattr,
        .permission     = jfs_permission,
 #endif
+       .sync_flags     = jfs_sync_flags,
 };
 
 const struct file_operations jfs_dir_operations = {
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/super.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/super.c
--- linux-2.6.22.10/fs/jfs/super.c      2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/super.c   2007-08-05 20:53:12 +0200
@@ -194,7 +194,8 @@ static void jfs_put_super(struct super_b
 enum {
        Opt_integrity, Opt_nointegrity, Opt_iocharset, Opt_resize,
        Opt_resize_nosize, Opt_errors, Opt_ignore, Opt_err, Opt_quota,
-       Opt_usrquota, Opt_grpquota, Opt_uid, Opt_gid, Opt_umask
+       Opt_usrquota, Opt_grpquota, Opt_uid, Opt_gid, Opt_umask,
+       Opt_tag, Opt_notag, Opt_tagid
 };
 
 static match_table_t tokens = {
@@ -204,6 +205,10 @@ static match_table_t tokens = {
        {Opt_resize, "resize=%u"},
        {Opt_resize_nosize, "resize"},
        {Opt_errors, "errors=%s"},
+       {Opt_tag, "tag"},
+       {Opt_notag, "notag"},
+       {Opt_tagid, "tagid=%u"},
+       {Opt_tag, "tagxid"},
        {Opt_ignore, "noquota"},
        {Opt_ignore, "quota"},
        {Opt_usrquota, "usrquota"},
@@ -338,6 +343,20 @@ static int parse_options(char *options, 
                        }
                        break;
                }
+#ifndef CONFIG_TAGGING_NONE
+               case Opt_tag:
+                       *flag |= JFS_TAGGED;
+                       break;
+               case Opt_notag:
+                       *flag &= JFS_TAGGED;
+                       break;
+#endif
+#ifdef CONFIG_PROPAGATE
+               case Opt_tagid:
+                       /* use args[0] */
+                       *flag |= JFS_TAGGED;
+                       break;
+#endif
                default:
                        printk("jfs: Unrecognized mount option \"%s\" "
                                        " or missing value\n", p);
@@ -368,6 +387,13 @@ static int jfs_remount(struct super_bloc
        if (!parse_options(data, sb, &newLVSize, &flag)) {
                return -EINVAL;
        }
+
+       if ((flag & JFS_TAGGED) && !(sb->s_flags & MS_TAGGED)) {
+               printk(KERN_ERR "JFS: %s: tagging not permitted on remount.\n",
+                       sb->s_id);
+               return -EINVAL;
+       }
+
        if (newLVSize) {
                if (sb->s_flags & MS_RDONLY) {
                        printk(KERN_ERR
@@ -439,6 +465,9 @@ static int jfs_fill_super(struct super_b
 #ifdef CONFIG_JFS_POSIX_ACL
        sb->s_flags |= MS_POSIXACL;
 #endif
+       /* map mount option tagxid */
+       if (sbi->flag & JFS_TAGGED)
+               sb->s_flags |= MS_TAGGED;
 
        if (newLVSize) {
                printk(KERN_ERR "resize option for remount only\n");
diff -NurpP --minimal linux-2.6.22.10/fs/jfs/xattr.c linux-2.6.22.10-vs2.3.0.29/fs/jfs/xattr.c
--- linux-2.6.22.10/fs/jfs/xattr.c      2006-11-30 21:19:26 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/jfs/xattr.c   2007-08-05 20:53:12 +0200
@@ -23,6 +23,7 @@
 #include <linux/posix_acl_xattr.h>
 #include <linux/quotaops.h>
 #include <linux/security.h>
+#include <linux/vs_dlimit.h>
 #include "jfs_incore.h"
 #include "jfs_superblock.h"
 #include "jfs_dmap.h"
@@ -263,9 +264,16 @@ static int ea_write(struct inode *ip, st
        if (DQUOT_ALLOC_BLOCK(ip, nblocks)) {
                return -EDQUOT;
        }
+       /* Allocate new blocks to dlimit. */
+       if (DLIMIT_ALLOC_BLOCK(ip, nblocks)) {
+               DQUOT_FREE_BLOCK(ip, nblocks);
+               return -ENOSPC;
+       }
 
        rc = dbAlloc(ip, INOHINT(ip), nblocks, &blkno);
        if (rc) {
+               /*Rollback dlimit allocation. */
+               DLIMIT_FREE_BLOCK(ip, nblocks);
                /*Rollback quota allocation. */
                DQUOT_FREE_BLOCK(ip, nblocks);
                return rc;
@@ -332,6 +340,8 @@ static int ea_write(struct inode *ip, st
 
       failed:
        /* Rollback quota allocation. */
+       DLIMIT_FREE_BLOCK(ip, nblocks);
+       /* Rollback quota allocation. */
        DQUOT_FREE_BLOCK(ip, nblocks);
 
        dbFree(ip, blkno, nblocks);
@@ -468,6 +478,7 @@ static int ea_get(struct inode *inode, s
        s64 blkno;
        int rc;
        int quota_allocation = 0;
+       int dlimit_allocation = 0;
 
        /* When fsck.jfs clears a bad ea, it doesn't clear the size */
        if (ji->ea.flag == 0)
@@ -543,6 +554,12 @@ static int ea_get(struct inode *inode, s
 
                quota_allocation = blocks_needed;
 
+               /* Allocate new blocks to dlimit. */
+               rc = -ENOSPC;
+               if (DLIMIT_ALLOC_BLOCK(inode, blocks_needed))
+                       goto clean_up;
+               dlimit_allocation = blocks_needed;
+
                rc = dbAlloc(inode, INOHINT(inode), (s64) blocks_needed,
                             &blkno);
                if (rc)
@@ -599,6 +616,9 @@ static int ea_get(struct inode *inode, s
        return ea_size;
 
       clean_up:
+       /* Rollback dlimit allocation */
+       if (dlimit_allocation)
+               DLIMIT_FREE_BLOCK(inode, dlimit_allocation);
        /* Rollback quota allocation */
        if (quota_allocation)
                DQUOT_FREE_BLOCK(inode, quota_allocation);
@@ -675,8 +695,10 @@ static int ea_put(tid_t tid, struct inod
        }
 
        /* If old blocks exist, they must be removed from quota allocation. */
-       if (old_blocks)
+       if (old_blocks) {
+               DLIMIT_FREE_BLOCK(inode, old_blocks);
                DQUOT_FREE_BLOCK(inode, old_blocks);
+       }
 
        inode->i_ctime = CURRENT_TIME;
 
diff -NurpP --minimal linux-2.6.22.10/fs/libfs.c linux-2.6.22.10-vs2.3.0.29/fs/libfs.c
--- linux-2.6.22.10/fs/libfs.c  2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/libfs.c       2007-08-05 20:53:12 +0200
@@ -124,7 +124,8 @@ static inline unsigned char dt_type(stru
  * both impossible due to the lock on directory.
  */
 
-int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
+static inline int do_dcache_readdir_filter(struct file *filp,
+       void *dirent, filldir_t filldir, int (*filter)(struct dentry *dentry))
 {
        struct dentry *dentry = filp->f_path.dentry;
        struct dentry *cursor = filp->private_data;
@@ -157,6 +158,8 @@ int dcache_readdir(struct file * filp, v
                                next = list_entry(p, struct dentry, d_u.d_child);
                                if (d_unhashed(next) || !next->d_inode)
                                        continue;
+                               if (filter && !filter(next))
+                                       continue;
 
                                spin_unlock(&dcache_lock);
                                if (filldir(dirent, next->d_name.name, 
@@ -175,6 +178,18 @@ int dcache_readdir(struct file * filp, v
        return 0;
 }
 
+int dcache_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+       return do_dcache_readdir_filter(filp, dirent, filldir, NULL);
+}
+
+int dcache_readdir_filter(struct file *filp, void *dirent, filldir_t filldir,
+       int (*filter)(struct dentry *))
+{
+       return do_dcache_readdir_filter(filp, dirent, filldir, filter);
+}
+
+
 ssize_t generic_read_dir(struct file *filp, char __user *buf, size_t siz, loff_t *ppos)
 {
        return -EISDIR;
@@ -640,6 +655,7 @@ EXPORT_SYMBOL(dcache_dir_close);
 EXPORT_SYMBOL(dcache_dir_lseek);
 EXPORT_SYMBOL(dcache_dir_open);
 EXPORT_SYMBOL(dcache_readdir);
+EXPORT_SYMBOL(dcache_readdir_filter);
 EXPORT_SYMBOL(generic_read_dir);
 EXPORT_SYMBOL(get_sb_pseudo);
 EXPORT_SYMBOL(simple_commit_write);
diff -NurpP --minimal linux-2.6.22.10/fs/locks.c linux-2.6.22.10-vs2.3.0.29/fs/locks.c
--- linux-2.6.22.10/fs/locks.c  2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/locks.c       2007-10-05 15:07:22 +0200
@@ -125,6 +125,8 @@
 #include <linux/syscalls.h>
 #include <linux/time.h>
 #include <linux/rcupdate.h>
+#include <linux/vs_base.h>
+#include <linux/vs_limit.h>
 
 #include <asm/semaphore.h>
 #include <asm/uaccess.h>
@@ -147,6 +149,8 @@ static struct kmem_cache *filelock_cache
 /* Allocate an empty lock structure. */
 static struct file_lock *locks_alloc_lock(void)
 {
+       if (!vx_locks_avail(1))
+               return NULL;
        return kmem_cache_alloc(filelock_cache, GFP_KERNEL);
 }
 
@@ -172,6 +176,7 @@ static void locks_free_lock(struct file_
        BUG_ON(!list_empty(&fl->fl_block));
        BUG_ON(!list_empty(&fl->fl_link));
 
+       vx_locks_dec(fl);
        locks_release_private(fl);
        kmem_cache_free(filelock_cache, fl);
 }
@@ -191,6 +196,7 @@ void locks_init_lock(struct file_lock *f
        fl->fl_start = fl->fl_end = 0;
        fl->fl_ops = NULL;
        fl->fl_lmops = NULL;
+       fl->fl_xid = -1;
 }
 
 EXPORT_SYMBOL(locks_init_lock);
@@ -244,6 +250,7 @@ void locks_copy_lock(struct file_lock *n
        new->fl_file = fl->fl_file;
        new->fl_ops = fl->fl_ops;
        new->fl_lmops = fl->fl_lmops;
+       new->fl_xid = fl->fl_xid;
 
        locks_copy_private(new, fl);
 }
@@ -282,6 +289,11 @@ static int flock_make_lock(struct file *
        fl->fl_flags = FL_FLOCK;
        fl->fl_type = type;
        fl->fl_end = OFFSET_MAX;
+
+       vxd_assert(filp->f_xid == vx_current_xid(),
+               "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
+       fl->fl_xid = filp->f_xid;
+       vx_locks_inc(fl);
        
        *lock = fl;
        return 0;
@@ -447,6 +459,7 @@ static int lease_init(struct file *filp,
 
        fl->fl_owner = current->files;
        fl->fl_pid = current->tgid;
+       fl->fl_xid = vx_current_xid();
 
        fl->fl_file = filp;
        fl->fl_flags = FL_LEASE;
@@ -466,6 +479,11 @@ static int lease_alloc(struct file *filp
        if (fl == NULL)
                goto out;
 
+       fl->fl_xid = vx_current_xid();
+       if (filp)
+               vxd_assert(filp->f_xid == fl->fl_xid,
+                       "f_xid(%d) == fl_xid(%d)", filp->f_xid, fl->fl_xid);
+       vx_locks_inc(fl);
        error = lease_init(filp, type, fl);
        if (error) {
                locks_free_lock(fl);
@@ -769,6 +787,7 @@ static int flock_lock_file(struct file *
        if (found)
                cond_resched();
 
+       new_fl->fl_xid = -1;
 find_conflict:
        for_each_lock(inode, before) {
                struct file_lock *fl = *before;
@@ -787,6 +806,7 @@ find_conflict:
                goto out;
        locks_copy_lock(new_fl, request);
        locks_insert_lock(before, new_fl);
+       vx_locks_inc(new_fl);
        new_fl = NULL;
        error = 0;
 
@@ -797,7 +817,8 @@ out:
        return error;
 }
 
-static int __posix_lock_file(struct inode *inode, struct file_lock *request, struct file_lock *conflock)
+static int __posix_lock_file(struct inode *inode, struct file_lock *request,
+       struct file_lock *conflock, xid_t xid)
 {
        struct file_lock *fl;
        struct file_lock *new_fl = NULL;
@@ -807,6 +828,8 @@ static int __posix_lock_file(struct inod
        struct file_lock **before;
        int error, added = 0;
 
+       vxd_assert(xid == vx_current_xid(),
+               "xid(%d) == current(%d)", xid, vx_current_xid());
        /*
         * We may need two file_lock structures for this operation,
         * so we get them in advance to avoid races.
@@ -817,7 +840,11 @@ static int __posix_lock_file(struct inod
            (request->fl_type != F_UNLCK ||
             request->fl_start != 0 || request->fl_end != OFFSET_MAX)) {
                new_fl = locks_alloc_lock();
+               new_fl->fl_xid = xid;
+               vx_locks_inc(new_fl);
                new_fl2 = locks_alloc_lock();
+               new_fl2->fl_xid = xid;
+               vx_locks_inc(new_fl2);
        }
 
        lock_kernel();
@@ -1016,7 +1043,8 @@ static int __posix_lock_file(struct inod
 int posix_lock_file(struct file *filp, struct file_lock *fl,
                        struct file_lock *conflock)
 {
-       return __posix_lock_file(filp->f_path.dentry->d_inode, fl, conflock);
+       return __posix_lock_file(filp->f_path.dentry->d_inode,
+               fl, conflock, filp->f_xid);
 }
 EXPORT_SYMBOL(posix_lock_file);
 
@@ -1106,7 +1134,7 @@ int locks_mandatory_area(int read_write,
        fl.fl_end = offset + count - 1;
 
        for (;;) {
-               error = __posix_lock_file(inode, &fl, NULL);
+               error = __posix_lock_file(inode, &fl, NULL, filp->f_xid);
                if (error != -EAGAIN)
                        break;
                if (!(fl.fl_flags & FL_SLEEP))
@@ -1410,8 +1438,8 @@ static int __setlease(struct file *filp,
                goto out;
 
        locks_copy_lock(fl, lease);
-
        locks_insert_lock(before, fl);
+       vx_locks_inc(fl);
 
        *flp = fl;
        error = 0;
@@ -1738,6 +1766,11 @@ int fcntl_setlk(unsigned int fd, struct 
        if (file_lock == NULL)
                return -ENOLCK;
 
+       vxd_assert(filp->f_xid == vx_current_xid(),
+               "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
+       file_lock->fl_xid = filp->f_xid;
+       vx_locks_inc(file_lock);
+
        /*
         * This might block, so we do it before checking the inode.
         */
@@ -1864,6 +1897,11 @@ int fcntl_setlk64(unsigned int fd, struc
        if (file_lock == NULL)
                return -ENOLCK;
 
+       vxd_assert(filp->f_xid == vx_current_xid(),
+               "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
+       file_lock->fl_xid = filp->f_xid;
+       vx_locks_inc(file_lock);
+
        /*
         * This might block, so we do it before checking the inode.
         */
@@ -2168,6 +2206,10 @@ int get_locks_status(char *buffer, char 
        list_for_each(tmp, &file_lock_list) {
                struct list_head *btmp;
                struct file_lock *fl = list_entry(tmp, struct file_lock, fl_link);
+
+               if (!vx_check(fl->fl_xid, VS_WATCH_P | VS_IDENT))
+                       continue;
+
                lock_get_status(q, fl, ++i, "");
                move_lock_status(&q, &pos, offset);
 
diff -NurpP --minimal linux-2.6.22.10/fs/namei.c linux-2.6.22.10-vs2.3.0.29/fs/namei.c
--- linux-2.6.22.10/fs/namei.c  2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/namei.c       2007-10-29 23:41:56 +0100
@@ -31,6 +31,13 @@
 #include <linux/file.h>
 #include <linux/fcntl.h>
 #include <linux/namei.h>
+#include <linux/proc_fs.h>
+#include <linux/vserver/inode.h>
+#include <linux/vs_base.h>
+#include <linux/vs_tag.h>
+#include <linux/vs_cowbl.h>
+#include <linux/vs_device.h>
+#include <linux/vs_context.h>
 #include <asm/namei.h>
 #include <asm/uaccess.h>
 
@@ -224,6 +231,28 @@ int generic_permission(struct inode *ino
        return -EACCES;
 }
 
+static inline int dx_barrier(struct inode *inode)
+{
+       if (IS_BARRIER(inode) && !vx_check(0, VS_ADMIN)) {
+               vxwprintk_task(1, "did hit the barrier.");
+               return 1;
+       }
+       return 0;
+}
+
+static inline int dx_permission(struct inode *inode, int mask, struct nameidata *nd)
+{
+       if (dx_barrier(inode))
+               return -EACCES;
+       if (dx_notagcheck(nd) ||
+           dx_check(inode->i_tag, DX_HOSTID|DX_ADMIN|DX_WATCH|DX_IDENT))
+               return 0;
+
+       vxwprintk_task(1, "denied access to %p[#%d,%lu] »%s«.",
+               inode, inode->i_tag, inode->i_ino, vxd_cond_path(nd));
+       return -EACCES;
+}
+
 int permission(struct inode *inode, int mask, struct nameidata *nd)
 {
        umode_t mode = inode->i_mode;
@@ -234,14 +263,14 @@ int permission(struct inode *inode, int 
                /*
                 * Nobody gets write access to a read-only fs.
                 */
-               if (IS_RDONLY(inode) &&
+               if ((IS_RDONLY(inode) || (nd && MNT_IS_RDONLY(nd->mnt))) &&
                    (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)))
                        return -EROFS;
 
                /*
                 * Nobody gets write access to an immutable file.
                 */
-               if (IS_IMMUTABLE(inode))
+               if (IS_IMMUTABLE(inode) && !IS_COW(inode))
                        return -EACCES;
        }
 
@@ -257,6 +286,12 @@ int permission(struct inode *inode, int 
 
        /* Ordinary permission routines do not understand MAY_APPEND. */
        submask = mask & ~MAY_APPEND;
+
+       if ((inode->i_sb->s_magic != DEVPTS_SUPER_MAGIC) &&
+               (inode->i_sb->s_magic != PROC_SUPER_MAGIC) &&
+               (retval = dx_permission(inode, mask, nd)))
+               return retval;
+
        if (inode->i_op && inode->i_op->permission)
                retval = inode->i_op->permission(inode, submask, nd);
        else
@@ -432,6 +467,8 @@ static int exec_permission_lite(struct i
 {
        umode_t mode = inode->i_mode;
 
+       if (dx_barrier(inode))
+               return -EACCES;
        if (inode->i_op && inode->i_op->permission)
                return -EAGAIN;
 
@@ -732,7 +769,8 @@ static __always_inline void follow_dotdo
                if (nd->dentry == fs->root &&
                    nd->mnt == fs->rootmnt) {
                         read_unlock(&fs->lock);
-                       break;
+                       /* for sane '/' avoid follow_mount() */
+                       return;
                }
                 read_unlock(&fs->lock);
                spin_lock(&dcache_lock);
@@ -769,16 +807,39 @@ static int do_lookup(struct nameidata *n
 {
        struct vfsmount *mnt = nd->mnt;
        struct dentry *dentry = __d_lookup(nd->dentry, name);
+       struct inode *inode;
 
        if (!dentry)
                goto need_lookup;
        if (dentry->d_op && dentry->d_op->d_revalidate)
                goto need_revalidate;
+       inode = dentry->d_inode;
+       if (!inode)
+               goto done;
+
+       if (inode->i_sb->s_magic == PROC_SUPER_MAGIC) {
+               struct proc_dir_entry *de = PDE(inode);
+
+               if (de && !vx_hide_check(0, de->vx_flags))
+                       goto hidden;
+       } else if (inode->i_sb->s_magic == DEVPTS_SUPER_MAGIC) {
+               if (!vx_check((xid_t)inode->i_tag, VS_WATCH_P | VS_IDENT))
+                       goto hidden;
+       } else {
+               if (!dx_notagcheck(nd) && !dx_check(inode->i_tag,
+                       DX_WATCH | DX_ADMIN | DX_HOSTID | DX_IDENT))
+                       goto hidden;
+       }
 done:
        path->mnt = mnt;
        path->dentry = dentry;
        __follow_mount(path);
        return 0;
+hidden:
+       vxwprintk_task(1, "did lookup hidden %p[#%d,%lu] »%s«.",
+               inode, inode->i_tag, inode->i_ino, vxd_path(dentry, mnt));
+       dput(dentry);
+       return -ENOENT;
 
 need_lookup:
        dentry = real_lookup(nd->dentry, name, nd);
@@ -1399,7 +1460,8 @@ static inline int check_sticky(struct in
  * 10. We don't allow removal of NFS sillyrenamed files; it's handled by
  *     nfs_async_unlink().
  */
-static int may_delete(struct inode *dir,struct dentry *victim,int isdir)
+static int may_delete(struct inode *dir, struct dentry *victim,
+       int isdir, struct nameidata *nd)
 {
        int error;
 
@@ -1409,13 +1471,13 @@ static int may_delete(struct inode *dir,
        BUG_ON(victim->d_parent->d_inode != dir);
        audit_inode_child(victim->d_name.name, victim->d_inode, dir);
 
-       error = permission(dir,MAY_WRITE | MAY_EXEC, NULL);
+       error = permission(dir,MAY_WRITE | MAY_EXEC, nd);
        if (error)
                return error;
        if (IS_APPEND(dir))
                return -EPERM;
        if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||
-           IS_IMMUTABLE(victim->d_inode))
+               IS_IXORUNLINK(victim->d_inode))
                return -EPERM;
        if (isdir) {
                if (!S_ISDIR(victim->d_inode->i_mode))
@@ -1546,6 +1608,14 @@ int may_open(struct nameidata *nd, int a
        if (S_ISDIR(inode->i_mode) && (flag & FMODE_WRITE))
                return -EISDIR;
 
+#ifdef CONFIG_VSERVER_COWBL
+       if (IS_COW(inode) && (flag & FMODE_WRITE)) {
+               if (IS_COW_LINK(inode))
+                       return -EMLINK;
+               inode->i_flags &= ~(S_IUNLINK|S_IMMUTABLE);
+               mark_inode_dirty(inode);
+       }
+#endif
        error = vfs_permission(nd, acc_mode);
        if (error)
                return error;
@@ -1562,7 +1632,8 @@ int may_open(struct nameidata *nd, int a
                        return -EACCES;
 
                flag &= ~O_TRUNC;
-       } else if (IS_RDONLY(inode) && (flag & FMODE_WRITE))
+       } else if ((IS_RDONLY(inode) || MNT_IS_RDONLY(nd->mnt))
+               && (flag & FMODE_WRITE))
                return -EROFS;
        /*
         * An append-only file must be opened in append mode for writing.
@@ -1650,6 +1721,11 @@ int open_namei(int dfd, const char *path
        struct dentry *dir;
        int count = 0;
 
+#ifdef CONFIG_VSERVER_COWBL
+       int rflag = flag;
+       int rmode = mode;
+restart:
+#endif
        acc_mode = ACC_MODE(flag);
 
        /* O_TRUNC implies we need access checks for write permissions */
@@ -1743,6 +1819,22 @@ do_last:
                goto exit;
 ok:
        error = may_open(nd, acc_mode, flag);
+#ifdef CONFIG_VSERVER_COWBL
+       if (error == -EMLINK) {
+               struct dentry *dentry;
+               dentry = cow_break_link(pathname);
+               if (IS_ERR(dentry)) {
+                       error = PTR_ERR(dentry);
+                       goto exit;
+               }
+               dput(dentry);
+               release_open_intent(nd);
+               path_release(nd);
+               flag = rflag;
+               mode = rmode;
+               goto restart;
+       }
+#endif
        if (error)
                goto exit;
        return 0;
@@ -1854,16 +1946,25 @@ fail:
 }
 EXPORT_SYMBOL_GPL(lookup_create);
 
-int vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+int vfs_mknod(struct inode *dir, struct dentry *dentry,
+       int mode, dev_t dev, struct nameidata *nd)
 {
-       int error = may_create(dir, dentry, NULL);
+       int error = may_create(dir, dentry, nd);
 
        if (error)
                return error;
 
-       if ((S_ISCHR(mode) || S_ISBLK(mode)) && !capable(CAP_MKNOD))
+       if (!(S_ISCHR(mode) || S_ISBLK(mode)))
+               goto okay;
+
+       if (!capable(CAP_MKNOD))
                return -EPERM;
 
+       if (S_ISCHR(mode) && !vs_chrdev_perm(dev, DATTR_CREATE))
+               return -EPERM;
+       if (S_ISBLK(mode) && !vs_blkdev_perm(dev, DATTR_CREATE))
+               return -EPERM;
+okay:
        if (!dir->i_op || !dir->i_op->mknod)
                return -EPERM;
 
@@ -1906,11 +2007,12 @@ asmlinkage long sys_mknodat(int dfd, con
                        error = vfs_create(nd.dentry->d_inode,dentry,mode,&nd);
                        break;
                case S_IFCHR: case S_IFBLK:
-                       error = vfs_mknod(nd.dentry->d_inode,dentry,mode,
-                                       new_decode_dev(dev));
+                       error = vfs_mknod(nd.dentry->d_inode, dentry, mode,
+                                       new_decode_dev(dev), &nd);
                        break;
                case S_IFIFO: case S_IFSOCK:
-                       error = vfs_mknod(nd.dentry->d_inode,dentry,mode,0);
+                       error = vfs_mknod(nd.dentry->d_inode, dentry, mode,
+                                       0, &nd);
                        break;
                case S_IFDIR:
                        error = -EPERM;
@@ -1933,9 +2035,10 @@ asmlinkage long sys_mknod(const char __u
        return sys_mknodat(AT_FDCWD, filename, mode, dev);
 }
 
-int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
+int vfs_mkdir(struct inode *dir, struct dentry *dentry,
+       int mode, struct nameidata *nd)
 {
-       int error = may_create(dir, dentry, NULL);
+       int error = may_create(dir, dentry, nd);
 
        if (error)
                return error;
@@ -1977,7 +2080,7 @@ asmlinkage long sys_mkdirat(int dfd, con
 
        if (!IS_POSIXACL(nd.dentry->d_inode))
                mode &= ~current->fs->umask;
-       error = vfs_mkdir(nd.dentry->d_inode, dentry, mode);
+       error = vfs_mkdir(nd.dentry->d_inode, dentry, mode, &nd);
        dput(dentry);
 out_unlock:
        mutex_unlock(&nd.dentry->d_inode->i_mutex);
@@ -2020,9 +2123,10 @@ void dentry_unhash(struct dentry *dentry
        spin_unlock(&dcache_lock);
 }
 
-int vfs_rmdir(struct inode *dir, struct dentry *dentry)
+int vfs_rmdir(struct inode *dir, struct dentry *dentry,
+       struct nameidata *nd)
 {
-       int error = may_delete(dir, dentry, 1);
+       int error = may_delete(dir, dentry, 1, nd);
 
        if (error)
                return error;
@@ -2084,7 +2188,7 @@ static long do_rmdir(int dfd, const char
        error = PTR_ERR(dentry);
        if (IS_ERR(dentry))
                goto exit2;
-       error = vfs_rmdir(nd.dentry->d_inode, dentry);
+       error = vfs_rmdir(nd.dentry->d_inode, dentry, &nd);
        dput(dentry);
 exit2:
        mutex_unlock(&nd.dentry->d_inode->i_mutex);
@@ -2100,9 +2204,10 @@ asmlinkage long sys_rmdir(const char __u
        return do_rmdir(AT_FDCWD, pathname);
 }
 
-int vfs_unlink(struct inode *dir, struct dentry *dentry)
+int vfs_unlink(struct inode *dir, struct dentry *dentry,
+       struct nameidata *nd)
 {
-       int error = may_delete(dir, dentry, 0);
+       int error = may_delete(dir, dentry, 0, nd);
 
        if (error)
                return error;
@@ -2164,7 +2269,7 @@ static long do_unlinkat(int dfd, const c
                inode = dentry->d_inode;
                if (inode)
                        atomic_inc(&inode->i_count);
-               error = vfs_unlink(nd.dentry->d_inode, dentry);
+               error = vfs_unlink(nd.dentry->d_inode, dentry, &nd);
        exit2:
                dput(dentry);
        }
@@ -2199,9 +2304,10 @@ asmlinkage long sys_unlink(const char __
        return do_unlinkat(AT_FDCWD, pathname);
 }
 
-int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname, int mode)
+int vfs_symlink(struct inode *dir, struct dentry *dentry,
+       const char *oldname, int mode, struct nameidata *nd)
 {
-       int error = may_create(dir, dentry, NULL);
+       int error = may_create(dir, dentry, nd);
 
        if (error)
                return error;
@@ -2245,7 +2351,7 @@ asmlinkage long sys_symlinkat(const char
        if (IS_ERR(dentry))
                goto out_unlock;
 
-       error = vfs_symlink(nd.dentry->d_inode, dentry, from, S_IALLUGO);
+       error = vfs_symlink(nd.dentry->d_inode, dentry, from, S_IALLUGO, &nd);
        dput(dentry);
 out_unlock:
        mutex_unlock(&nd.dentry->d_inode->i_mutex);
@@ -2262,7 +2368,8 @@ asmlinkage long sys_symlink(const char _
        return sys_symlinkat(oldname, AT_FDCWD, newname);
 }
 
-int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry)
+int vfs_link(struct dentry *old_dentry, struct inode *dir,
+       struct dentry *new_dentry, struct nameidata *nd)
 {
        struct inode *inode = old_dentry->d_inode;
        int error;
@@ -2270,7 +2377,7 @@ int vfs_link(struct dentry *old_dentry, 
        if (!inode)
                return -ENOENT;
 
-       error = may_create(dir, new_dentry, NULL);
+       error = may_create(dir, new_dentry, nd);
        if (error)
                return error;
 
@@ -2280,7 +2387,7 @@ int vfs_link(struct dentry *old_dentry, 
        /*
         * A link to an append-only or immutable file cannot be created.
         */
-       if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+       if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
                return -EPERM;
        if (!dir->i_op || !dir->i_op->link)
                return -EPERM;
@@ -2340,7 +2447,7 @@ asmlinkage long sys_linkat(int olddfd, c
        error = PTR_ERR(new_dentry);
        if (IS_ERR(new_dentry))
                goto out_unlock;
-       error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry);
+       error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry, &nd);
        dput(new_dentry);
 out_unlock:
        mutex_unlock(&nd.dentry->d_inode->i_mutex);
@@ -2472,14 +2579,14 @@ int vfs_rename(struct inode *old_dir, st
        if (old_dentry->d_inode == new_dentry->d_inode)
                return 0;
  
-       error = may_delete(old_dir, old_dentry, is_dir);
+       error = may_delete(old_dir, old_dentry, is_dir, NULL);
        if (error)
                return error;
 
        if (!new_dentry->d_inode)
                error = may_create(new_dir, new_dentry, NULL);
        else
-               error = may_delete(new_dir, new_dentry, is_dir);
+               error = may_delete(new_dir, new_dentry, is_dir, NULL);
        if (error)
                return error;
 
@@ -2557,6 +2664,9 @@ static int do_rename(int olddfd, const c
        error = -EINVAL;
        if (old_dentry == trap)
                goto exit4;
+       error = -EROFS;
+       if (MNT_IS_RDONLY(newnd.mnt))
+               goto exit4;
        new_dentry = lookup_hash(&newnd);
        error = PTR_ERR(new_dentry);
        if (IS_ERR(new_dentry))
@@ -2650,6 +2760,216 @@ int vfs_follow_link(struct nameidata *nd
        return __vfs_follow_link(nd, link);
 }
 
+
+#ifdef CONFIG_VSERVER_COWBL
+
+#include <linux/file.h>
+
+static inline
+long do_cow_splice(struct file *in, struct file *out, size_t len)
+{
+       loff_t ppos = 0;
+
+       return do_splice_direct(in, &ppos, out, len, 0);
+}
+
+struct dentry *cow_break_link(const char *pathname)
+{
+       int ret, mode, pathlen, redo = 0;
+       struct nameidata old_nd, dir_nd;
+       struct dentry *old_dentry, *new_dentry;
+       struct dentry *dir, *res = NULL;
+       struct vfsmount *old_mnt, *new_mnt;
+       struct file *old_file;
+       struct file *new_file;
+       char *to, *path, pad='\251';
+       loff_t size;
+
+       vxdprintk(VXD_CBIT(misc, 1), "cow_break_link(»%s«)", pathname);
+       path = kmalloc(PATH_MAX, GFP_KERNEL);
+       ret = -ENOMEM;
+       if (!path)
+               goto out;
+
+       /* old_nd will have refs to dentry and mnt */
+       ret = path_lookup(pathname, LOOKUP_FOLLOW, &old_nd);
+       vxdprintk(VXD_CBIT(misc, 2), "path_lookup(old): %d", ret);
+       if (ret < 0)
+               goto out_free_path;
+
+       old_dentry = old_nd.dentry;
+       old_mnt = old_nd.mnt;
+       mode = old_dentry->d_inode->i_mode;
+
+       to = d_path(old_dentry, old_mnt, path, PATH_MAX-2);
+       pathlen = strlen(to);
+       vxdprintk(VXD_CBIT(misc, 2), "old path »%s« [»%.*s«:%d]", to,
+               old_dentry->d_name.len, old_dentry->d_name.name,
+               old_dentry->d_name.len);
+
+       to[pathlen + 1] = 0;
+retry:
+       to[pathlen] = pad--;
+       ret = -EMLINK;
+       if (pad <= '\240')
+               goto out_rel_old;
+
+       vxdprintk(VXD_CBIT(misc, 1), "temp copy »%s«", to);
+       /* dir_nd will have refs to dentry and mnt */
+       ret = path_lookup(to,
+               LOOKUP_PARENT | LOOKUP_OPEN | LOOKUP_CREATE, &dir_nd);
+       vxdprintk(VXD_CBIT(misc, 2),
+               "path_lookup(new): %d", ret);
+       if (ret < 0)
+               goto retry;
+
+       /* this puppy downs the inode mutex */
+       new_dentry = lookup_create(&dir_nd, 0);
+       vxdprintk(VXD_CBIT(misc, 2),
+               "lookup_create(new): %p [»%.*s«:%d]", new_dentry,
+               new_dentry->d_name.len, new_dentry->d_name.name,
+               new_dentry->d_name.len);
+       if (!new_dentry || IS_ERR(new_dentry)) {
+               path_release(&dir_nd);
+               goto retry;
+       }
+       dir = dir_nd.dentry;
+
+       ret = vfs_create(dir_nd.dentry->d_inode, new_dentry, mode, &dir_nd);
+       vxdprintk(VXD_CBIT(misc, 2),
+               "vfs_create(new): %d", ret);
+       if (ret == -EEXIST) {
+               mutex_unlock(&dir->d_inode->i_mutex);
+               dput(new_dentry);
+               path_release(&dir_nd);
+               goto retry;
+       }
+       else if (ret < 0)
+               goto out_unlock_new;
+
+       /* drop out early, ret passes ENOENT */
+       ret = -ENOENT;
+       if ((redo = d_unhashed(old_dentry)))
+               goto out_unlock_new;
+
+       new_mnt = dir_nd.mnt;
+       dget(old_dentry);
+       mntget(old_mnt);
+       /* this one cleans up the dentry/mnt in case of failure */
+       old_file = dentry_open(old_dentry, old_mnt, O_RDONLY);
+       vxdprintk(VXD_CBIT(misc, 2),
+               "dentry_open(old): %p", old_file);
+       if (!old_file || IS_ERR(old_file)) {
+               res = IS_ERR(old_file) ? (void *) old_file : res;
+               goto out_unlock_new;
+       }
+
+       dget(new_dentry);
+       mntget(new_mnt);
+       /* this one cleans up the dentry/mnt in case of failure */
+       new_file = dentry_open(new_dentry, new_mnt, O_WRONLY);
+       vxdprintk(VXD_CBIT(misc, 2),
+               "dentry_open(new): %p", new_file);
+
+       ret = IS_ERR(new_file) ? PTR_ERR(new_file) : -ENOENT;
+       if (!new_file || IS_ERR(new_file))
+               goto out_fput_old;
+
+       size = i_size_read(old_file->f_dentry->d_inode);
+       ret = do_cow_splice(old_file, new_file, size);
+       vxdprintk(VXD_CBIT(misc, 2), "do_splice_direct: %d", ret);
+       if (ret < 0) {
+               goto out_fput_both;
+       } else if (ret < size) {
+               ret = -ENOSPC;
+               goto out_fput_both;
+       } else {
+               struct inode *old_inode = old_dentry->d_inode;
+               struct inode *new_inode = new_dentry->d_inode;
+               struct iattr attr = {
+                       .ia_uid = old_inode->i_uid,
+                       .ia_gid = old_inode->i_gid,
+                       .ia_valid = ATTR_UID | ATTR_GID
+                       };
+
+               ret = inode_setattr(new_inode, &attr);
+               if (ret)
+                       goto out_fput_both;
+       }
+
+       mutex_lock(&old_dentry->d_inode->i_sb->s_vfs_rename_mutex);
+
+       /* drop out late */
+       ret = -ENOENT;
+       if ((redo = d_unhashed(old_dentry)))
+               goto out_unlock;
+
+       vxdprintk(VXD_CBIT(misc, 2),
+               "vfs_rename: [»%*s«:%d] -> [»%*s«:%d]",
+               new_dentry->d_name.len, new_dentry->d_name.name,
+               new_dentry->d_name.len,
+               old_dentry->d_name.len, old_dentry->d_name.name,
+               old_dentry->d_name.len);
+       ret = vfs_rename(dir_nd.dentry->d_inode, new_dentry,
+               old_nd.dentry->d_parent->d_inode, old_dentry);
+       vxdprintk(VXD_CBIT(misc, 2), "vfs_rename: %d", ret);
+       res = new_dentry;
+
+out_unlock:
+       mutex_unlock(&old_dentry->d_inode->i_sb->s_vfs_rename_mutex);
+
+out_fput_both:
+       vxdprintk(VXD_CBIT(misc, 3),
+               "fput(new_file=%p[#%d])", new_file,
+               atomic_read(&new_file->f_count));
+       fput(new_file);
+
+out_fput_old:
+       vxdprintk(VXD_CBIT(misc, 3),
+               "fput(old_file=%p[#%d])", old_file,
+               atomic_read(&old_file->f_count));
+       fput(old_file);
+
+out_unlock_new:
+       mutex_unlock(&dir->d_inode->i_mutex);
+       if (!ret)
+               goto out_redo;
+
+       /* error path cleanup */
+       vfs_unlink(dir->d_inode, new_dentry, &dir_nd);
+       dput(new_dentry);
+
+out_redo:
+       if (!redo)
+               goto out_rel_both;
+       /* lookup dentry once again */
+       path_release(&old_nd);
+       ret = path_lookup(pathname, LOOKUP_FOLLOW, &old_nd);
+       if (ret)
+               goto out_rel_both;
+
+       new_dentry = old_nd.dentry;
+       vxdprintk(VXD_CBIT(misc, 2),
+               "path_lookup(redo): %p [»%.*s«:%d]", new_dentry,
+               new_dentry->d_name.len, new_dentry->d_name.name,
+               new_dentry->d_name.len);
+       dget(new_dentry);
+       res = new_dentry;
+
+out_rel_both:
+       path_release(&dir_nd);
+out_rel_old:
+       path_release(&old_nd);
+out_free_path:
+       kfree(path);
+out:
+       if (ret)
+               res = ERR_PTR(ret);
+       return res;
+}
+
+#endif
+
 /* get the link contents into pagecache */
 static char *page_getlink(struct dentry * dentry, struct page **ppage)
 {
diff -NurpP --minimal linux-2.6.22.10/fs/namespace.c linux-2.6.22.10-vs2.3.0.29/fs/namespace.c
--- linux-2.6.22.10/fs/namespace.c      2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/namespace.c   2007-09-05 02:29:17 +0200
@@ -25,6 +25,11 @@
 #include <linux/security.h>
 #include <linux/mount.h>
 #include <linux/ramfs.h>
+#include <linux/vs_base.h>
+#include <linux/vs_context.h>
+#include <linux/vs_tag.h>
+#include <linux/vserver/space.h>
+#include <linux/vserver/global.h>
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 #include "pnode.h"
@@ -240,6 +245,7 @@ static struct vfsmount *clone_mnt(struct
                mnt->mnt_root = dget(root);
                mnt->mnt_mountpoint = mnt->mnt_root;
                mnt->mnt_parent = mnt;
+               mnt->mnt_tag = old->mnt_tag;
 
                if (flag & CL_SLAVE) {
                        list_add(&mnt->mnt_slave, &old->mnt_slave_list);
@@ -348,48 +354,91 @@ static inline void mangle(struct seq_fil
        seq_escape(m, s, " \t\n\\");
 }
 
+static int mnt_is_reachable(struct vfsmount *mnt)
+{
+       struct vfsmount *root_mnt;
+       struct dentry *root, *point;
+       int ret;
+
+       if (mnt == mnt->mnt_ns->root)
+               return 1;
+
+       spin_lock(&vfsmount_lock);
+       root_mnt = current->fs->rootmnt;
+       root = current->fs->root;
+       point = root;
+
+       while ((mnt != mnt->mnt_parent) && (mnt != root_mnt)) {
+               point = mnt->mnt_mountpoint;
+               mnt = mnt->mnt_parent;
+       }
+
+       ret = (mnt == root_mnt) && is_subdir(point, root);
+
+       spin_unlock(&vfsmount_lock);
+
+       return ret;
+}
+
 static int show_vfsmnt(struct seq_file *m, void *v)
 {
        struct vfsmount *mnt = v;
        int err = 0;
        static struct proc_fs_info {
-               int flag;
-               char *str;
+               int s_flag;
+               int mnt_flag;
+               char *set_str;
+               char *unset_str;
        } fs_info[] = {
-               { MS_SYNCHRONOUS, ",sync" },
-               { MS_DIRSYNC, ",dirsync" },
-               { MS_MANDLOCK, ",mand" },
-               { 0, NULL }
-       };
-       static struct proc_fs_info mnt_info[] = {
-               { MNT_NOSUID, ",nosuid" },
-               { MNT_NODEV, ",nodev" },
-               { MNT_NOEXEC, ",noexec" },
-               { MNT_NOATIME, ",noatime" },
-               { MNT_NODIRATIME, ",nodiratime" },
-               { MNT_RELATIME, ",relatime" },
-               { 0, NULL }
+               { MS_RDONLY, MNT_RDONLY, "ro", "rw" },
+               { MS_SYNCHRONOUS, 0, ",sync", NULL },
+               { MS_DIRSYNC, 0, ",dirsync", NULL },
+               { MS_MANDLOCK, 0, ",mand", NULL },
+               { MS_TAGGED, 0, ",tag", NULL },
+               { MS_NOATIME, MNT_NOATIME, ",noatime", NULL },
+               { MS_NODIRATIME, MNT_NODIRATIME, ",nodiratime", NULL },
+               { MS_RELATIME, MNT_RELATIME, ",relatime", NULL },
+               { 0, MNT_NOSUID, ",nosuid", NULL },
+               { 0, MNT_NODEV, ",nodev", NULL },
+               { 0, MNT_NOEXEC, ",noexec", NULL },
+               { 0, 0, NULL, NULL }
        };
-       struct proc_fs_info *fs_infop;
+       struct proc_fs_info *p;
+       unsigned long s_flags = mnt->mnt_sb->s_flags;
+       int mnt_flags = mnt->mnt_flags;
 
-       mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
-       seq_putc(m, ' ');
-       seq_path(m, mnt, mnt->mnt_root, " \t\n\\");
-       seq_putc(m, ' ');
-       mangle(m, mnt->mnt_sb->s_type->name);
-       if (mnt->mnt_sb->s_subtype && mnt->mnt_sb->s_subtype[0]) {
-               seq_putc(m, '.');
-               mangle(m, mnt->mnt_sb->s_subtype);
-       }
-       seq_puts(m, mnt->mnt_sb->s_flags & MS_RDONLY ? " ro" : " rw");
-       for (fs_infop = fs_info; fs_infop->flag; fs_infop++) {
-               if (mnt->mnt_sb->s_flags & fs_infop->flag)
-                       seq_puts(m, fs_infop->str);
+       if (vx_flags(VXF_HIDE_MOUNT, 0))
+               return 0;
+       if (!mnt_is_reachable(mnt) && !vx_check(0, VS_WATCH_P))
+               return 0;
+
+       if (!vx_check(0, VS_ADMIN|VS_WATCH) &&
+               mnt == current->fs->rootmnt) {
+               seq_puts(m, "/dev/root / ");
+       } else {
+               mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
+               seq_putc(m, ' ');
+               seq_path(m, mnt, mnt->mnt_root, " \t\n\\");
+               seq_putc(m, ' ');
+
+               if (mnt->mnt_sb->s_subtype && mnt->mnt_sb->s_subtype[0]) {
+                       seq_putc(m, '.');
+                       mangle(m, mnt->mnt_sb->s_subtype);
+               }
        }
-       for (fs_infop = mnt_info; fs_infop->flag; fs_infop++) {
-               if (mnt->mnt_flags & fs_infop->flag)
-                       seq_puts(m, fs_infop->str);
+       mangle(m, mnt->mnt_sb->s_type->name);
+       seq_putc(m, ' ');
+       for (p = fs_info; (p->s_flag | p->mnt_flag) ; p++) {
+               if ((s_flags & p->s_flag) || (mnt_flags & p->mnt_flag)) {
+                       if (p->set_str)
+                               seq_puts(m, p->set_str);
+               } else {
+                       if (p->unset_str)
+                               seq_puts(m, p->unset_str);
+               }
        }
+       if (mnt->mnt_flags & MNT_TAGID)
+               seq_printf(m, ",tag=%d", mnt->mnt_tag);
        if (mnt->mnt_sb->s_op->show_options)
                err = mnt->mnt_sb->s_op->show_options(m, mnt);
        seq_puts(m, " 0 0\n");
@@ -408,17 +457,27 @@ static int show_vfsstat(struct seq_file 
        struct vfsmount *mnt = v;
        int err = 0;
 
-       /* device */
-       if (mnt->mnt_devname) {
-               seq_puts(m, "device ");
-               mangle(m, mnt->mnt_devname);
-       } else
-               seq_puts(m, "no device");
+       if (vx_flags(VXF_HIDE_MOUNT, 0))
+               return 0;
+       if (!mnt_is_reachable(mnt) && !vx_check(0, VS_WATCH_P))
+               return 0;
 
-       /* mount point */
-       seq_puts(m, " mounted on ");
-       seq_path(m, mnt, mnt->mnt_root, " \t\n\\");
-       seq_putc(m, ' ');
+       if (!vx_check(0, VS_ADMIN|VS_WATCH) &&
+               mnt == current->fs->rootmnt) {
+               seq_puts(m, "device /dev/root mounted on / ");
+       } else {
+               /* device */
+               if (mnt->mnt_devname) {
+                       seq_puts(m, "device ");
+                       mangle(m, mnt->mnt_devname);
+               } else
+                       seq_puts(m, "no device");
+
+               /* mount point */
+               seq_puts(m, " mounted on ");
+               seq_path(m, mnt, mnt->mnt_root, " \t\n\\");
+               seq_putc(m, ' ');
+       }
 
        /* file system type */
        seq_puts(m, "with fstype ");
@@ -648,7 +707,7 @@ asmlinkage long sys_umount(char __user *
                goto dput_and_out;
 
        retval = -EPERM;
-       if (!capable(CAP_SYS_ADMIN))
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
                goto dput_and_out;
 
        retval = do_umount(nd.mnt, flags);
@@ -672,7 +731,7 @@ asmlinkage long sys_oldumount(char __use
 
 static int mount_is_safe(struct nameidata *nd)
 {
-       if (capable(CAP_SYS_ADMIN))
+       if (vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
                return 0;
        return -EPERM;
 #ifdef notyet
@@ -904,11 +963,13 @@ static int do_change_type(struct nameida
 /*
  * do loopback mount.
  */
-static int do_loopback(struct nameidata *nd, char *old_name, int recurse)
+static int do_loopback(struct nameidata *nd, char *old_name, tag_t tag,
+       unsigned long flags, int mnt_flags)
 {
        struct nameidata old_nd;
        struct vfsmount *mnt = NULL;
        int err = mount_is_safe(nd);
+       int recurse = flags & MS_REC;
        if (err)
                return err;
        if (!old_name || !*old_name)
@@ -934,6 +995,12 @@ static int do_loopback(struct nameidata 
        if (!mnt)
                goto out;
 
+       mnt->mnt_flags = mnt_flags;
+       if (flags & MS_TAGID) {
+               mnt->mnt_tag = tag;
+               mnt->mnt_flags |= MNT_TAGID;
+       }
+
        err = graft_tree(mnt, nd);
        if (err) {
                LIST_HEAD(umount_list);
@@ -942,6 +1009,7 @@ static int do_loopback(struct nameidata 
                spin_unlock(&vfsmount_lock);
                release_mounts(&umount_list);
        }
+       mnt->mnt_flags = mnt_flags;
 
 out:
        up_write(&namespace_sem);
@@ -955,12 +1023,12 @@ out:
  * on it - tough luck.
  */
 static int do_remount(struct nameidata *nd, int flags, int mnt_flags,
-                     void *data)
+                     void *data, xid_t xid)
 {
        int err;
        struct super_block *sb = nd->mnt->mnt_sb;
 
-       if (!capable(CAP_SYS_ADMIN))
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_REMOUNT))
                return -EPERM;
 
        if (!check_mnt(nd->mnt))
@@ -994,7 +1062,7 @@ static int do_move_mount(struct nameidat
        struct nameidata old_nd, parent_nd;
        struct vfsmount *p;
        int err = 0;
-       if (!capable(CAP_SYS_ADMIN))
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
                return -EPERM;
        if (!old_name || !*old_name)
                return -EINVAL;
@@ -1074,7 +1142,7 @@ static int do_new_mount(struct nameidata
                return -EINVAL;
 
        /* we need capabilities... */
-       if (!capable(CAP_SYS_ADMIN))
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_SECURE_MOUNT))
                return -EPERM;
 
        mnt = do_kern_mount(type, flags, name, data);
@@ -1386,6 +1454,7 @@ long do_mount(char *dev_name, char *dir_
        struct nameidata nd;
        int retval = 0;
        int mnt_flags = 0;
+       tag_t tag = 0;
 
        /* Discard magic */
        if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
@@ -1401,7 +1470,17 @@ long do_mount(char *dev_name, char *dir_
        if (data_page)
                ((char *)data_page)[PAGE_SIZE - 1] = 0;
 
+       retval = dx_parse_tag(data_page, &tag, 1);
+       if (retval) {
+               mnt_flags |= retval;
+               /* FIXME: bind and re-mounts get the tag flag? */
+               if (flags & (MS_BIND|MS_REMOUNT))
+                       flags |= MS_TAGID;
+       }
+
        /* Separate the per-mountpoint flags */
+       if (flags & MS_RDONLY)
+               mnt_flags |= MNT_RDONLY;
        if (flags & MS_NOSUID)
                mnt_flags |= MNT_NOSUID;
        if (flags & MS_NODEV)
@@ -1415,6 +1494,8 @@ long do_mount(char *dev_name, char *dir_
        if (flags & MS_RELATIME)
                mnt_flags |= MNT_RELATIME;
 
+       if (!capable(CAP_SYS_ADMIN))
+               mnt_flags |= MNT_NODEV;
        flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE |
                   MS_NOATIME | MS_NODIRATIME | MS_RELATIME);
 
@@ -1429,9 +1510,9 @@ long do_mount(char *dev_name, char *dir_
 
        if (flags & MS_REMOUNT)
                retval = do_remount(&nd, flags & ~MS_REMOUNT, mnt_flags,
-                                   data_page);
+                                   data_page, tag);
        else if (flags & MS_BIND)
-               retval = do_loopback(&nd, dev_name, flags & MS_REC);
+               retval = do_loopback(&nd, dev_name, tag, flags, mnt_flags);
        else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
                retval = do_change_type(&nd, flags);
        else if (flags & MS_MOVE)
@@ -1504,6 +1585,7 @@ static struct mnt_namespace *dup_mnt_ns(
                q = next_mnt(q, new_ns->root);
        }
        up_write(&namespace_sem);
+       atomic_inc(&vs_global_mnt_ns);
 
        if (rootmnt)
                mntput(rootmnt);
@@ -1866,5 +1948,6 @@ void __put_mnt_ns(struct mnt_namespace *
        spin_unlock(&vfsmount_lock);
        up_write(&namespace_sem);
        release_mounts(&umount_list);
+       atomic_dec(&vs_global_mnt_ns);
        kfree(ns);
 }
diff -NurpP --minimal linux-2.6.22.10/fs/nfs/client.c linux-2.6.22.10-vs2.3.0.29/fs/nfs/client.c
--- linux-2.6.22.10/fs/nfs/client.c     2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfs/client.c  2007-08-05 20:53:13 +0200
@@ -521,6 +521,9 @@ static int nfs_init_server_rpcclient(str
        if (server->flags & NFS4_MOUNT_INTR)
                server->client->cl_intr = 1;
 
+       server->client->cl_tag = 0;
+       if (server->flags & NFS_MOUNT_TAGGED)
+               server->client->cl_tag = 1;
        return 0;
 }
 
@@ -678,6 +681,10 @@ static void nfs_server_set_fsinfo(struct
                server->acdirmin = server->acdirmax = 0;
        }
 
+       /* FIXME: needs fsinfo
+       if (server->flags & NFS_MOUNT_TAGGED)
+               sb->s_flags |= MS_TAGGED;       */
+
        server->maxfilesize = fsinfo->maxfilesize;
 
        /* We're airborne Set socket buffersize */
diff -NurpP --minimal linux-2.6.22.10/fs/nfs/dir.c linux-2.6.22.10-vs2.3.0.29/fs/nfs/dir.c
--- linux-2.6.22.10/fs/nfs/dir.c        2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfs/dir.c     2007-08-05 20:53:13 +0200
@@ -34,6 +34,7 @@
 #include <linux/namei.h>
 #include <linux/mount.h>
 #include <linux/sched.h>
+#include <linux/vs_tag.h>
 
 #include "nfs4_fs.h"
 #include "delegation.h"
@@ -956,6 +957,7 @@ static struct dentry *nfs_lookup(struct 
        if (IS_ERR(res))
                goto out_unlock;
 
+       dx_propagate_tag(nd, inode);
 no_entry:
        res = d_materialise_unique(dentry, inode);
        if (res != NULL) {
@@ -998,7 +1000,8 @@ static int is_atomic_open(struct inode *
        if (nd->flags & LOOKUP_DIRECTORY)
                return 0;
        /* Are we trying to write to a read only partition? */
-       if (IS_RDONLY(dir) && (nd->intent.open.flags & (O_CREAT|O_TRUNC|FMODE_WRITE)))
+       if ((IS_RDONLY(dir) || MNT_IS_RDONLY(nd->mnt)) &&
+               (nd->intent.open.flags & (O_CREAT|O_TRUNC|FMODE_WRITE)))
                return 0;
        return 1;
 }
diff -NurpP --minimal linux-2.6.22.10/fs/nfs/inode.c linux-2.6.22.10-vs2.3.0.29/fs/nfs/inode.c
--- linux-2.6.22.10/fs/nfs/inode.c      2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfs/inode.c   2007-08-05 20:53:13 +0200
@@ -37,6 +37,7 @@
 #include <linux/vfs.h>
 #include <linux/inet.h>
 #include <linux/nfs_xdr.h>
+#include <linux/vs_tag.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -285,8 +286,10 @@ nfs_fhget(struct super_block *sb, struct
                        nfsi->change_attr = fattr->change_attr;
                inode->i_size = nfs_size_to_loff_t(fattr->size);
                inode->i_nlink = fattr->nlink;
-               inode->i_uid = fattr->uid;
-               inode->i_gid = fattr->gid;
+               inode->i_uid = INOTAG_UID(DX_TAG(inode), fattr->uid, fattr->gid);
+               inode->i_gid = INOTAG_GID(DX_TAG(inode), fattr->uid, fattr->gid);
+               inode->i_tag = INOTAG_TAG(DX_TAG(inode), fattr->uid, fattr->gid, 0);
+                                        /* maybe fattr->xid someday */
                if (fattr->valid & (NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4)) {
                        /*
                         * report the blocks in 512byte units
@@ -377,6 +380,8 @@ void nfs_setattr_update_inode(struct ino
                        inode->i_uid = attr->ia_uid;
                if ((attr->ia_valid & ATTR_GID) != 0)
                        inode->i_gid = attr->ia_gid;
+               if ((attr->ia_valid & ATTR_TAG) && IS_TAGGED(inode))
+                       inode->i_tag = attr->ia_tag;
                spin_lock(&inode->i_lock);
                NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
                spin_unlock(&inode->i_lock);
@@ -825,6 +830,9 @@ static int nfs_check_inode_attributes(st
        struct nfs_inode *nfsi = NFS_I(inode);
        loff_t cur_size, new_isize;
        int data_unstable;
+       uid_t uid;
+       gid_t gid;
+       tag_t tag;
 
 
        /* Has the inode gone and changed behind our back? */
@@ -852,10 +860,15 @@ static int nfs_check_inode_attributes(st
        if (cur_size != new_isize && nfsi->npages == 0)
                nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE;
 
+       uid = INOTAG_UID(DX_TAG(inode), fattr->uid, fattr->gid);
+       gid = INOTAG_GID(DX_TAG(inode), fattr->uid, fattr->gid);
+       tag = INOTAG_TAG(DX_TAG(inode), fattr->uid, fattr->gid, 0);
+
        /* Have any file permissions changed? */
        if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)
-                       || inode->i_uid != fattr->uid
-                       || inode->i_gid != fattr->gid)
+                       || inode->i_uid != uid
+                       || inode->i_gid != gid
+                       || inode->i_tag != tag)
                nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
 
        /* Has the link count changed? */
@@ -946,6 +959,9 @@ static int nfs_update_inode(struct inode
        unsigned int    invalid = 0;
        unsigned long now = jiffies;
        int data_stable;
+       uid_t uid;
+       gid_t gid;
+       tag_t tag;
 
        dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
                        __FUNCTION__, inode->i_sb->s_id, inode->i_ino,
@@ -1022,15 +1038,21 @@ static int nfs_update_inode(struct inode
        }
        memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
 
+       uid = INOTAG_UID(DX_TAG(inode), fattr->uid, fattr->gid);
+       gid = INOTAG_GID(DX_TAG(inode), fattr->uid, fattr->gid);
+       tag = INOTAG_TAG(DX_TAG(inode), fattr->uid, fattr->gid, 0);
+
        if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) ||
-           inode->i_uid != fattr->uid ||
-           inode->i_gid != fattr->gid)
+           inode->i_uid != uid ||
+           inode->i_gid != gid ||
+           inode->i_tag != tag)
                invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
 
        inode->i_mode = fattr->mode;
        inode->i_nlink = fattr->nlink;
-       inode->i_uid = fattr->uid;
-       inode->i_gid = fattr->gid;
+       inode->i_uid = uid;
+       inode->i_gid = gid;
+       inode->i_tag = tag;
 
        if (fattr->valid & (NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4)) {
                /*
diff -NurpP --minimal linux-2.6.22.10/fs/nfs/nfs3xdr.c linux-2.6.22.10-vs2.3.0.29/fs/nfs/nfs3xdr.c
--- linux-2.6.22.10/fs/nfs/nfs3xdr.c    2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfs/nfs3xdr.c 2007-08-05 20:53:13 +0200
@@ -22,6 +22,7 @@
 #include <linux/nfs3.h>
 #include <linux/nfs_fs.h>
 #include <linux/nfsacl.h>
+#include <linux/vs_tag.h>
 #include "internal.h"
 
 #define NFSDBG_FACILITY                NFSDBG_XDR
@@ -178,7 +179,7 @@ xdr_decode_fattr(__be32 *p, struct nfs_f
 }
 
 static inline __be32 *
-xdr_encode_sattr(__be32 *p, struct iattr *attr)
+xdr_encode_sattr(__be32 *p, struct iattr *attr, int tag)
 {
        if (attr->ia_valid & ATTR_MODE) {
                *p++ = xdr_one;
@@ -186,15 +187,17 @@ xdr_encode_sattr(__be32 *p, struct iattr
        } else {
                *p++ = xdr_zero;
        }
-       if (attr->ia_valid & ATTR_UID) {
+       if (attr->ia_valid & ATTR_UID ||
+               (tag && (attr->ia_valid & ATTR_TAG))) {
                *p++ = xdr_one;
-               *p++ = htonl(attr->ia_uid);
+               *p++ = htonl(TAGINO_UID(tag, attr->ia_uid, attr->ia_tag));
        } else {
                *p++ = xdr_zero;
        }
-       if (attr->ia_valid & ATTR_GID) {
+       if (attr->ia_valid & ATTR_GID ||
+               (tag && (attr->ia_valid & ATTR_TAG))) {
                *p++ = xdr_one;
-               *p++ = htonl(attr->ia_gid);
+               *p++ = htonl(TAGINO_GID(tag, attr->ia_gid, attr->ia_tag));
        } else {
                *p++ = xdr_zero;
        }
@@ -279,7 +282,8 @@ static int
 nfs3_xdr_sattrargs(struct rpc_rqst *req, __be32 *p, struct nfs3_sattrargs *args)
 {
        p = xdr_encode_fhandle(p, args->fh);
-       p = xdr_encode_sattr(p, args->sattr);
+       p = xdr_encode_sattr(p, args->sattr,
+               req->rq_task->tk_client->cl_tag);
        *p++ = htonl(args->guard);
        if (args->guard)
                p = xdr_encode_time3(p, &args->guardtime);
@@ -370,7 +374,8 @@ nfs3_xdr_createargs(struct rpc_rqst *req
                *p++ = args->verifier[0];
                *p++ = args->verifier[1];
        } else
-               p = xdr_encode_sattr(p, args->sattr);
+               p = xdr_encode_sattr(p, args->sattr,
+                       req->rq_task->tk_client->cl_tag);
 
        req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
        return 0;
@@ -384,7 +389,8 @@ nfs3_xdr_mkdirargs(struct rpc_rqst *req,
 {
        p = xdr_encode_fhandle(p, args->fh);
        p = xdr_encode_array(p, args->name, args->len);
-       p = xdr_encode_sattr(p, args->sattr);
+       p = xdr_encode_sattr(p, args->sattr,
+               req->rq_task->tk_client->cl_tag);
        req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
        return 0;
 }
@@ -397,7 +403,8 @@ nfs3_xdr_symlinkargs(struct rpc_rqst *re
 {
        p = xdr_encode_fhandle(p, args->fromfh);
        p = xdr_encode_array(p, args->fromname, args->fromlen);
-       p = xdr_encode_sattr(p, args->sattr);
+       p = xdr_encode_sattr(p, args->sattr,
+               req->rq_task->tk_client->cl_tag);
        *p++ = htonl(args->pathlen);
        req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
 
@@ -415,7 +422,8 @@ nfs3_xdr_mknodargs(struct rpc_rqst *req,
        p = xdr_encode_fhandle(p, args->fh);
        p = xdr_encode_array(p, args->name, args->len);
        *p++ = htonl(args->type);
-       p = xdr_encode_sattr(p, args->sattr);
+       p = xdr_encode_sattr(p, args->sattr,
+               req->rq_task->tk_client->cl_tag);
        if (args->type == NF3CHR || args->type == NF3BLK) {
                *p++ = htonl(MAJOR(args->rdev));
                *p++ = htonl(MINOR(args->rdev));
diff -NurpP --minimal linux-2.6.22.10/fs/nfs/nfsroot.c linux-2.6.22.10-vs2.3.0.29/fs/nfs/nfsroot.c
--- linux-2.6.22.10/fs/nfs/nfsroot.c    2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfs/nfsroot.c 2007-08-05 20:53:13 +0200
@@ -118,12 +118,12 @@ static int mount_port __initdata = 0;             /
 enum {
        /* Options that take integer arguments */
        Opt_port, Opt_rsize, Opt_wsize, Opt_timeo, Opt_retrans, Opt_acregmin,
-       Opt_acregmax, Opt_acdirmin, Opt_acdirmax,
+       Opt_acregmax, Opt_acdirmin, Opt_acdirmax, Opt_tagid,
        /* Options that take no arguments */
        Opt_soft, Opt_hard, Opt_intr,
        Opt_nointr, Opt_posix, Opt_noposix, Opt_cto, Opt_nocto, Opt_ac, 
        Opt_noac, Opt_lock, Opt_nolock, Opt_v2, Opt_v3, Opt_udp, Opt_tcp,
-       Opt_acl, Opt_noacl,
+       Opt_acl, Opt_noacl, Opt_tag, Opt_notag,
        /* Error token */
        Opt_err
 };
@@ -160,6 +160,9 @@ static match_table_t __initdata tokens =
        {Opt_tcp, "tcp"},
        {Opt_acl, "acl"},
        {Opt_noacl, "noacl"},
+       {Opt_tag, "tag"},
+       {Opt_notag, "notag"},
+       {Opt_tagid, "tagid=%u"},
        {Opt_err, NULL}
        
 };
@@ -274,6 +277,20 @@ static int __init root_nfs_parse(char *n
                        case Opt_noacl:
                                nfs_data.flags |= NFS_MOUNT_NOACL;
                                break;
+#ifndef CONFIG_TAGGING_NONE
+                       case Opt_tag:
+                               nfs_data.flags |= NFS_MOUNT_TAGGED;
+                               break;
+                       case Opt_notag:
+                               nfs_data.flags &= ~NFS_MOUNT_TAGGED;
+                               break;
+#endif
+#ifdef CONFIG_PROPAGATE
+                       case Opt_tagid:
+                               /* use args[0] */
+                               nfs_data.flags |= NFS_MOUNT_TAGGED;
+                               break;
+#endif
                        default:
                                printk(KERN_WARNING "Root-NFS: unknown "
                                        "option: %s\n", p);
diff -NurpP --minimal linux-2.6.22.10/fs/nfs/super.c linux-2.6.22.10-vs2.3.0.29/fs/nfs/super.c
--- linux-2.6.22.10/fs/nfs/super.c      2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfs/super.c   2007-09-30 14:58:01 +0200
@@ -45,6 +45,7 @@
 #include <linux/nfs_xdr.h>
 #include <linux/magic.h>
 #include <linux/parser.h>
+#include <linux/vs_tag.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -291,6 +292,7 @@ static void nfs_show_mount_options(struc
                { NFS_MOUNT_NOACL, ",noacl", "" },
                { NFS_MOUNT_NORDIRPLUS, ",nordirplus", "" },
                { NFS_MOUNT_UNSHARED, ",nosharecache", ""},
+               { NFS_MOUNT_TAGGED, ",tag", "" },
                { 0, NULL, NULL }
        };
        const struct proc_nfs_info *nfs_infop;
diff -NurpP --minimal linux-2.6.22.10/fs/nfsd/auth.c linux-2.6.22.10-vs2.3.0.29/fs/nfsd/auth.c
--- linux-2.6.22.10/fs/nfsd/auth.c      2006-06-18 04:54:42 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfsd/auth.c   2007-08-05 20:53:13 +0200
@@ -9,6 +9,7 @@
 #include <linux/sunrpc/svc.h>
 #include <linux/sunrpc/svcauth.h>
 #include <linux/nfsd/nfsd.h>
+#include <linux/vs_tag.h>
 
 #define        CAP_NFSD_MASK (CAP_FS_MASK|CAP_TO_MASK(CAP_SYS_RESOURCE))
 
@@ -41,19 +42,22 @@ int nfsd_setuser(struct svc_rqst *rqstp,
                get_group_info(cred.cr_group_info);
 
        if (cred.cr_uid != (uid_t) -1)
-               current->fsuid = cred.cr_uid;
+               current->fsuid = INOTAG_UID(DX_TAG_NFSD, cred.cr_uid, cred.cr_gid);
        else
                current->fsuid = exp->ex_anon_uid;
        if (cred.cr_gid != (gid_t) -1)
-               current->fsgid = cred.cr_gid;
+               current->fsgid = INOTAG_GID(DX_TAG_NFSD, cred.cr_uid, cred.cr_gid);
        else
                current->fsgid = exp->ex_anon_gid;
 
+       /* this desperately needs a tag :) */
+       current->xid = (xid_t)INOTAG_TAG(DX_TAG_NFSD, cred.cr_uid, cred.cr_gid, 0);
+
        if (!cred.cr_group_info)
                return -ENOMEM;
        ret = set_current_groups(cred.cr_group_info);
        put_group_info(cred.cr_group_info);
-       if ((cred.cr_uid)) {
+       if (INOTAG_UID(DX_TAG_NFSD, cred.cr_uid, cred.cr_gid)) {
                cap_t(current->cap_effective) &= ~CAP_NFSD_MASK;
        } else {
                cap_t(current->cap_effective) |= (CAP_NFSD_MASK &
diff -NurpP --minimal linux-2.6.22.10/fs/nfsd/nfs3xdr.c linux-2.6.22.10-vs2.3.0.29/fs/nfsd/nfs3xdr.c
--- linux-2.6.22.10/fs/nfsd/nfs3xdr.c   2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfsd/nfs3xdr.c        2007-08-05 20:53:13 +0200
@@ -21,6 +21,7 @@
 #include <linux/sunrpc/svc.h>
 #include <linux/nfsd/nfsd.h>
 #include <linux/nfsd/xdr3.h>
+#include <linux/vs_tag.h>
 
 #define NFSDDBG_FACILITY               NFSDDBG_XDR
 
@@ -107,6 +108,8 @@ static __be32 *
 decode_sattr3(__be32 *p, struct iattr *iap)
 {
        u32     tmp;
+       uid_t   uid = 0;
+       gid_t   gid = 0;
 
        iap->ia_valid = 0;
 
@@ -116,12 +119,15 @@ decode_sattr3(__be32 *p, struct iattr *i
        }
        if (*p++) {
                iap->ia_valid |= ATTR_UID;
-               iap->ia_uid = ntohl(*p++);
+               uid = ntohl(*p++);
        }
        if (*p++) {
                iap->ia_valid |= ATTR_GID;
-               iap->ia_gid = ntohl(*p++);
+               gid = ntohl(*p++);
        }
+       iap->ia_uid = INOTAG_UID(DX_TAG_NFSD, uid, gid);
+       iap->ia_gid = INOTAG_GID(DX_TAG_NFSD, uid, gid);
+       iap->ia_tag = INOTAG_TAG(DX_TAG_NFSD, uid, gid, 0);
        if (*p++) {
                u64     newsize;
 
@@ -180,8 +186,10 @@ encode_fattr3(struct svc_rqst *rqstp, __
        *p++ = htonl(nfs3_ftypes[(stat->mode & S_IFMT) >> 12]);
        *p++ = htonl((u32) stat->mode);
        *p++ = htonl((u32) stat->nlink);
-       *p++ = htonl((u32) nfsd_ruid(rqstp, stat->uid));
-       *p++ = htonl((u32) nfsd_rgid(rqstp, stat->gid));
+       *p++ = htonl((u32) nfsd_ruid(rqstp,
+               TAGINO_UID(DX_TAG(dentry->d_inode), stat->uid, stat->tag)));
+       *p++ = htonl((u32) nfsd_rgid(rqstp,
+               TAGINO_GID(DX_TAG(dentry->d_inode), stat->gid, stat->tag)));
        if (S_ISLNK(stat->mode) && stat->size > NFS3_MAXPATHLEN) {
                p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN);
        } else {
diff -NurpP --minimal linux-2.6.22.10/fs/nfsd/nfs4recover.c linux-2.6.22.10-vs2.3.0.29/fs/nfsd/nfs4recover.c
--- linux-2.6.22.10/fs/nfsd/nfs4recover.c       2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfsd/nfs4recover.c    2007-08-05 20:53:13 +0200
@@ -156,7 +156,7 @@ nfsd4_create_clid_dir(struct nfs4_client
                dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n");
                goto out_put;
        }
-       status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU);
+       status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU, NULL);
 out_put:
        dput(dentry);
 out_unlock:
@@ -260,7 +260,7 @@ nfsd4_remove_clid_file(struct dentry *di
                return -EINVAL;
        }
        mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
-       status = vfs_unlink(dir->d_inode, dentry);
+       status = vfs_unlink(dir->d_inode, dentry, NULL);
        mutex_unlock(&dir->d_inode->i_mutex);
        return status;
 }
@@ -275,7 +275,7 @@ nfsd4_clear_clid_dir(struct dentry *dir,
         * a kernel from the future.... */
        nfsd4_list_rec_dir(dentry, nfsd4_remove_clid_file);
        mutex_lock_nested(&dir->d_inode->i_mutex, I_MUTEX_PARENT);
-       status = vfs_rmdir(dir->d_inode, dentry);
+       status = vfs_rmdir(dir->d_inode, dentry, NULL);
        mutex_unlock(&dir->d_inode->i_mutex);
        return status;
 }
diff -NurpP --minimal linux-2.6.22.10/fs/nfsd/nfs4xdr.c linux-2.6.22.10-vs2.3.0.29/fs/nfsd/nfs4xdr.c
--- linux-2.6.22.10/fs/nfsd/nfs4xdr.c   2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfsd/nfs4xdr.c        2007-08-05 20:53:13 +0200
@@ -56,6 +56,7 @@
 #include <linux/nfs4_acl.h>
 #include <linux/sunrpc/gss_api.h>
 #include <linux/sunrpc/svcauth_gss.h>
+#include <linux/vs_tag.h>
 
 #define NFSDDBG_FACILITY               NFSDDBG_XDR
 
@@ -1727,14 +1728,18 @@ out_acl:
                WRITE32(stat.nlink);
        }
        if (bmval1 & FATTR4_WORD1_OWNER) {
-               status = nfsd4_encode_user(rqstp, stat.uid, &p, &buflen);
+               status = nfsd4_encode_user(rqstp,
+                       TAGINO_UID(DX_TAG(dentry->d_inode),
+                       stat.uid, stat.tag), &p, &buflen);
                if (status == nfserr_resource)
                        goto out_resource;
                if (status)
                        goto out;
        }
        if (bmval1 & FATTR4_WORD1_OWNER_GROUP) {
-               status = nfsd4_encode_group(rqstp, stat.gid, &p, &buflen);
+               status = nfsd4_encode_group(rqstp,
+                       TAGINO_GID(DX_TAG(dentry->d_inode),
+                       stat.gid, stat.tag), &p, &buflen);
                if (status == nfserr_resource)
                        goto out_resource;
                if (status)
diff -NurpP --minimal linux-2.6.22.10/fs/nfsd/nfsxdr.c linux-2.6.22.10-vs2.3.0.29/fs/nfsd/nfsxdr.c
--- linux-2.6.22.10/fs/nfsd/nfsxdr.c    2007-07-09 13:19:27 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfsd/nfsxdr.c 2007-08-05 20:53:13 +0200
@@ -15,6 +15,7 @@
 #include <linux/nfsd/nfsd.h>
 #include <linux/nfsd/xdr.h>
 #include <linux/mm.h>
+#include <linux/vs_tag.h>
 
 #define NFSDDBG_FACILITY               NFSDDBG_XDR
 
@@ -97,6 +98,8 @@ static __be32 *
 decode_sattr(__be32 *p, struct iattr *iap)
 {
        u32     tmp, tmp1;
+       uid_t   uid = 0;
+       gid_t   gid = 0;
 
        iap->ia_valid = 0;
 
@@ -110,12 +113,15 @@ decode_sattr(__be32 *p, struct iattr *ia
        }
        if ((tmp = ntohl(*p++)) != (u32)-1) {
                iap->ia_valid |= ATTR_UID;
-               iap->ia_uid = tmp;
+               uid = tmp;
        }
        if ((tmp = ntohl(*p++)) != (u32)-1) {
                iap->ia_valid |= ATTR_GID;
-               iap->ia_gid = tmp;
+               gid = tmp;
        }
+       iap->ia_uid = INOTAG_UID(DX_TAG_NFSD, uid, gid);
+       iap->ia_gid = INOTAG_GID(DX_TAG_NFSD, uid, gid);
+       iap->ia_tag = INOTAG_TAG(DX_TAG_NFSD, uid, gid, 0);
        if ((tmp = ntohl(*p++)) != (u32)-1) {
                iap->ia_valid |= ATTR_SIZE;
                iap->ia_size = tmp;
@@ -160,8 +166,10 @@ encode_fattr(struct svc_rqst *rqstp, __b
        *p++ = htonl(nfs_ftypes[type >> 12]);
        *p++ = htonl((u32) stat->mode);
        *p++ = htonl((u32) stat->nlink);
-       *p++ = htonl((u32) nfsd_ruid(rqstp, stat->uid));
-       *p++ = htonl((u32) nfsd_rgid(rqstp, stat->gid));
+       *p++ = htonl((u32) nfsd_ruid(rqstp,
+               TAGINO_UID(DX_TAG(dentry->d_inode), stat->uid, stat->tag)));
+       *p++ = htonl((u32) nfsd_rgid(rqstp,
+               TAGINO_GID(DX_TAG(dentry->d_inode), stat->gid, stat->tag)));
 
        if (S_ISLNK(type) && stat->size > NFS_MAXPATHLEN) {
                *p++ = htonl(NFS_MAXPATHLEN);
diff -NurpP --minimal linux-2.6.22.10/fs/nfsd/vfs.c linux-2.6.22.10-vs2.3.0.29/fs/nfsd/vfs.c
--- linux-2.6.22.10/fs/nfsd/vfs.c       2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/nfsd/vfs.c    2007-08-11 22:41:51 +0200
@@ -1186,13 +1186,13 @@ nfsd_create(struct svc_rqst *rqstp, stru
                host_err = vfs_create(dirp, dchild, iap->ia_mode, NULL);
                break;
        case S_IFDIR:
-               host_err = vfs_mkdir(dirp, dchild, iap->ia_mode);
+               host_err = vfs_mkdir(dirp, dchild, iap->ia_mode, NULL);
                break;
        case S_IFCHR:
        case S_IFBLK:
        case S_IFIFO:
        case S_IFSOCK:
-               host_err = vfs_mknod(dirp, dchild, iap->ia_mode, rdev);
+               host_err = vfs_mknod(dirp, dchild, iap->ia_mode, rdev, NULL);
                break;
        default:
                printk("nfsd: bad file type %o in nfsd_create\n", type);
@@ -1466,11 +1466,13 @@ nfsd_symlink(struct svc_rqst *rqstp, str
                else {
                        strncpy(path_alloced, path, plen);
                        path_alloced[plen] = 0;
-                       host_err = vfs_symlink(dentry->d_inode, dnew, path_alloced, mode);
+                       host_err = vfs_symlink(dentry->d_inode, dnew,
+                               path_alloced, mode, NULL);
                        kfree(path_alloced);
                }
        } else
-               host_err = vfs_symlink(dentry->d_inode, dnew, path, mode);
+               host_err = vfs_symlink(dentry->d_inode, dnew,
+                       path, mode, NULL);
 
        if (!host_err) {
                if (EX_ISSYNC(fhp->fh_export))
@@ -1529,7 +1531,7 @@ nfsd_link(struct svc_rqst *rqstp, struct
        dold = tfhp->fh_dentry;
        dest = dold->d_inode;
 
-       host_err = vfs_link(dold, dirp, dnew);
+       host_err = vfs_link(dold, dirp, dnew, NULL);
        if (!host_err) {
                if (EX_ISSYNC(ffhp->fh_export)) {
                        err = nfserrno(nfsd_sync_dir(ddir));
@@ -1694,9 +1696,9 @@ nfsd_unlink(struct svc_rqst *rqstp, stru
                        host_err = -EPERM;
                } else
 #endif
-               host_err = vfs_unlink(dirp, rdentry);
+               host_err = vfs_unlink(dirp, rdentry, NULL);
        } else { /* It's RMDIR */
-               host_err = vfs_rmdir(dirp, rdentry);
+               host_err = vfs_rmdir(dirp, rdentry, NULL);
        }
 
        dput(rdentry);
@@ -1807,7 +1809,8 @@ nfsd_permission(struct svc_export *exp, 
         */
        if (!(acc & MAY_LOCAL_ACCESS))
                if (acc & (MAY_WRITE | MAY_SATTR | MAY_TRUNC)) {
-                       if (EX_RDONLY(exp, rqstp) || IS_RDONLY(inode))
+                       if (EX_RDONLY(exp, rqstp) || IS_RDONLY(inode)
+                               || MNT_IS_RDONLY(exp->ex_mnt))
                                return nfserr_rofs;
                        if (/* (acc & MAY_WRITE) && */ IS_IMMUTABLE(inode))
                                return nfserr_perm;
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/dlm/dlmfs.c linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/dlm/dlmfs.c
--- linux-2.6.22.10/fs/ocfs2/dlm/dlmfs.c        2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/dlm/dlmfs.c     2007-08-05 20:53:13 +0200
@@ -43,6 +43,7 @@
 #include <linux/init.h>
 #include <linux/string.h>
 #include <linux/backing-dev.h>
+#include <linux/vs_tag.h>
 
 #include <asm/uaccess.h>
 
@@ -331,6 +332,7 @@ static struct inode *dlmfs_get_root_inod
                inode->i_mode = mode;
                inode->i_uid = current->fsuid;
                inode->i_gid = current->fsgid;
+               inode->i_tag = dx_current_fstag(sb);
                inode->i_blocks = 0;
                inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info;
                inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
@@ -357,6 +359,7 @@ static struct inode *dlmfs_get_inode(str
        inode->i_mode = mode;
        inode->i_uid = current->fsuid;
        inode->i_gid = current->fsgid;
+       inode->i_tag = dx_current_fstag(sb);
        inode->i_blocks = 0;
        inode->i_mapping->backing_dev_info = &dlmfs_backing_dev_info;
        inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/dlmglue.c linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/dlmglue.c
--- linux-2.6.22.10/fs/ocfs2/dlmglue.c  2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/dlmglue.c       2007-08-05 20:53:13 +0200
@@ -1475,6 +1475,7 @@ static void __ocfs2_stuff_meta_lvb(struc
        lvb->lvb_iclusters = cpu_to_be32(oi->ip_clusters);
        lvb->lvb_iuid      = cpu_to_be32(inode->i_uid);
        lvb->lvb_igid      = cpu_to_be32(inode->i_gid);
+       lvb->lvb_itag      = cpu_to_be16(inode->i_tag);
        lvb->lvb_imode     = cpu_to_be16(inode->i_mode);
        lvb->lvb_inlink    = cpu_to_be16(inode->i_nlink);
        lvb->lvb_iatime_packed  =
@@ -1527,6 +1528,7 @@ static void ocfs2_refresh_inode_from_lvb
 
        inode->i_uid     = be32_to_cpu(lvb->lvb_iuid);
        inode->i_gid     = be32_to_cpu(lvb->lvb_igid);
+       inode->i_tag     = be16_to_cpu(lvb->lvb_itag);
        inode->i_mode    = be16_to_cpu(lvb->lvb_imode);
        inode->i_nlink   = be16_to_cpu(lvb->lvb_inlink);
        ocfs2_unpack_timespec(&inode->i_atime,
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/dlmglue.h linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/dlmglue.h
--- linux-2.6.22.10/fs/ocfs2/dlmglue.h  2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/dlmglue.h       2007-08-05 20:53:13 +0200
@@ -34,7 +34,7 @@
 struct ocfs2_meta_lvb {
        __u8         lvb_version;
        __u8         lvb_reserved0;
-       __be16       lvb_reserved1;
+       __be16       lvb_itag;
        __be32       lvb_iclusters;
        __be32       lvb_iuid;
        __be32       lvb_igid;
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/file.c linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/file.c
--- linux-2.6.22.10/fs/ocfs2/file.c     2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/file.c  2007-09-05 03:06:11 +0200
@@ -943,13 +943,15 @@ int ocfs2_setattr(struct dentry *dentry,
                mlog(0, "uid change: %d\n", attr->ia_uid);
        if (attr->ia_valid & ATTR_GID)
                mlog(0, "gid change: %d\n", attr->ia_gid);
+       if (attr->ia_valid & ATTR_TAG)
+               mlog(0, "tag change: %d\n", attr->ia_tag);
        if (attr->ia_valid & ATTR_SIZE)
                mlog(0, "size change...\n");
        if (attr->ia_valid & (ATTR_ATIME | ATTR_MTIME | ATTR_CTIME))
                mlog(0, "time change...\n");
 
 #define OCFS2_VALID_ATTRS (ATTR_ATIME | ATTR_MTIME | ATTR_CTIME | ATTR_SIZE \
-                          | ATTR_GID | ATTR_UID | ATTR_MODE)
+                          | ATTR_GID | ATTR_UID | ATTR_TAG | ATTR_MODE)
        if (!(attr->ia_valid & OCFS2_VALID_ATTRS)) {
                mlog(0, "can't handle attrs: 0x%x\n", attr->ia_valid);
                return 0;
@@ -1805,6 +1807,7 @@ bail:
 const struct inode_operations ocfs2_file_iops = {
        .setattr        = ocfs2_setattr,
        .getattr        = ocfs2_getattr,
+       .sync_flags     = ocfs2_sync_flags,
        .permission     = ocfs2_permission,
 };
 
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/inode.c linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/inode.c
--- linux-2.6.22.10/fs/ocfs2/inode.c    2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/inode.c 2007-08-05 20:53:13 +0200
@@ -28,6 +28,7 @@
 #include <linux/slab.h>
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
+#include <linux/vs_tag.h>
 
 #include <asm/byteorder.h>
 
@@ -42,6 +43,7 @@
 #include "file.h"
 #include "heartbeat.h"
 #include "inode.h"
+#include "ioctl.h"
 #include "journal.h"
 #include "namei.h"
 #include "suballoc.h"
@@ -77,6 +79,10 @@ void ocfs2_set_inode_flags(struct inode 
 
        if (flags & OCFS2_IMMUTABLE_FL)
                inode->i_flags |= S_IMMUTABLE;
+       if (flags & OCFS2_IUNLINK_FL)
+               inode->i_flags |= S_IUNLINK;
+       if (flags & OCFS2_BARRIER_FL)
+               inode->i_flags |= S_BARRIER;
 
        if (flags & OCFS2_SYNC_FL)
                inode->i_flags |= S_SYNC;
@@ -107,6 +113,27 @@ void ocfs2_get_inode_flags(struct ocfs2_
                oi->ip_attr |= OCFS2_DIRSYNC_FL;
 }
 
+int ocfs2_sync_flags(struct inode *inode)
+{
+       unsigned int oldflags, newflags;
+
+       oldflags = OCFS2_I(inode)->ip_flags;
+       newflags = oldflags & ~(OCFS2_IMMUTABLE_FL |
+               OCFS2_IUNLINK_FL | OCFS2_BARRIER_FL);
+
+       if (IS_IMMUTABLE(inode))
+               newflags |= OCFS2_IMMUTABLE_FL;
+       if (IS_IUNLINK(inode))
+               newflags |= OCFS2_IUNLINK_FL;
+       if (IS_BARRIER(inode))
+               newflags |= OCFS2_BARRIER_FL;
+
+       if (oldflags ^ newflags)
+               return ocfs2_set_inode_attr(inode,
+                       newflags, OCFS2_FL_MASK);
+       return 0;
+}
+
 struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 blkno, int flags)
 {
        struct inode *inode = NULL;
@@ -212,6 +239,8 @@ int ocfs2_populate_inode(struct inode *i
        struct super_block *sb;
        struct ocfs2_super *osb;
        int status = -EINVAL;
+       uid_t uid;
+       gid_t gid;
 
        mlog_entry("(0x%p, size:%llu)\n", inode,
                   (unsigned long long)le64_to_cpu(fe->i_size));
@@ -246,8 +275,12 @@ int ocfs2_populate_inode(struct inode *i
        inode->i_generation = le32_to_cpu(fe->i_generation);
        inode->i_rdev = huge_decode_dev(le64_to_cpu(fe->id1.dev1.i_rdev));
        inode->i_mode = le16_to_cpu(fe->i_mode);
-       inode->i_uid = le32_to_cpu(fe->i_uid);
-       inode->i_gid = le32_to_cpu(fe->i_gid);
+       uid = le32_to_cpu(fe->i_uid);
+       gid = le32_to_cpu(fe->i_gid);
+       inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
+       inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
+       inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
+               /* le16_to_cpu(raw_inode->i_raw_tag)i */ 0);
 
        /* Fast symlinks will have i_size but no allocated clusters. */
        if (S_ISLNK(inode->i_mode) && !fe->i_clusters)
@@ -1224,8 +1257,11 @@ int ocfs2_mark_inode_dirty(handle_t *han
 
        fe->i_size = cpu_to_le64(i_size_read(inode));
        fe->i_links_count = cpu_to_le16(inode->i_nlink);
-       fe->i_uid = cpu_to_le32(inode->i_uid);
-       fe->i_gid = cpu_to_le32(inode->i_gid);
+       fe->i_uid = cpu_to_le32(TAGINO_UID(DX_TAG(inode),
+               inode->i_uid, inode->i_tag));
+       fe->i_gid = cpu_to_le32(TAGINO_GID(DX_TAG(inode),
+               inode->i_gid, inode->i_tag));
+       /* i_tag = = cpu_to_le16(inode->i_tag); */
        fe->i_mode = cpu_to_le16(inode->i_mode);
        fe->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
        fe->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
@@ -1253,15 +1289,24 @@ leave:
 void ocfs2_refresh_inode(struct inode *inode,
                         struct ocfs2_dinode *fe)
 {
+       uid_t uid;
+       gid_t gid;
+
        spin_lock(&OCFS2_I(inode)->ip_lock);
 
        OCFS2_I(inode)->ip_clusters = le32_to_cpu(fe->i_clusters);
        OCFS2_I(inode)->ip_attr = le32_to_cpu(fe->i_attr);
+       /* OCFS2_I(inode)->ip_flags &= ~OCFS2_FL_MASK;
+          OCFS2_I(inode)->ip_flags |= le32_to_cpu(fe->i_flags) & OCFS2_FL_MASK; */
        ocfs2_set_inode_flags(inode);
        i_size_write(inode, le64_to_cpu(fe->i_size));
        inode->i_nlink = le16_to_cpu(fe->i_links_count);
-       inode->i_uid = le32_to_cpu(fe->i_uid);
-       inode->i_gid = le32_to_cpu(fe->i_gid);
+       uid = le32_to_cpu(fe->i_uid);
+       gid = le32_to_cpu(fe->i_gid);
+       inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
+       inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
+       inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid,
+               /* le16_to_cpu(raw_inode->i_raw_tag)i */ 0);
        inode->i_mode = le16_to_cpu(fe->i_mode);
        if (S_ISLNK(inode->i_mode) && le32_to_cpu(fe->i_clusters) == 0)
                inode->i_blocks = 0;
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/inode.h linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/inode.h
--- linux-2.6.22.10/fs/ocfs2/inode.h    2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/inode.h 2007-08-05 20:53:13 +0200
@@ -142,6 +142,7 @@ int ocfs2_aio_write(struct file *file, s
 
 void ocfs2_set_inode_flags(struct inode *inode);
 void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi);
+int ocfs2_sync_flags(struct inode *inode);
 
 static inline blkcnt_t ocfs2_inode_sector_count(struct inode *inode)
 {
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/ioctl.c linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/ioctl.c
--- linux-2.6.22.10/fs/ocfs2/ioctl.c    2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/ioctl.c 2007-08-05 20:53:13 +0200
@@ -39,7 +39,7 @@ static int ocfs2_get_inode_attr(struct i
        return status;
 }
 
-static int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
+int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
                                unsigned mask)
 {
        struct ocfs2_inode_info *ocfs2_inode = OCFS2_I(inode);
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/ioctl.h linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/ioctl.h
--- linux-2.6.22.10/fs/ocfs2/ioctl.h    2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/ioctl.h 2007-08-05 20:53:13 +0200
@@ -10,6 +10,9 @@
 #ifndef OCFS2_IOCTL_H
 #define OCFS2_IOCTL_H
 
+int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
+                               unsigned mask);
+
 int ocfs2_ioctl(struct inode * inode, struct file * filp,
        unsigned int cmd, unsigned long arg);
 long ocfs2_compat_ioctl(struct file *file, unsigned cmd, unsigned long arg);
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/namei.c linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/namei.c
--- linux-2.6.22.10/fs/ocfs2/namei.c    2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/namei.c 2007-08-05 20:53:13 +0200
@@ -40,6 +40,7 @@
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/highmem.h>
+#include <linux/vs_tag.h>
 
 #define MLOG_MASK_PREFIX ML_NAMEI
 #include <cluster/masklog.h>
@@ -483,6 +484,9 @@ static int ocfs2_mknod_locked(struct ocf
        u64 fe_blkno = 0;
        u16 suballoc_bit;
        struct inode *inode = NULL;
+       uid_t uid;
+       gid_t gid;
+       tag_t tag;
 
        mlog_entry("(0x%p, 0x%p, %d, %lu, '%.*s')\n", dir, dentry, mode,
                   (unsigned long)dev, dentry->d_name.len,
@@ -542,13 +546,19 @@ static int ocfs2_mknod_locked(struct ocf
        fe->i_blkno = cpu_to_le64(fe_blkno);
        fe->i_suballoc_bit = cpu_to_le16(suballoc_bit);
        fe->i_suballoc_slot = cpu_to_le16(osb->slot_num);
-       fe->i_uid = cpu_to_le32(current->fsuid);
+
+       tag = dx_current_fstag(osb->sb);
+       uid = current->fsuid;
        if (dir->i_mode & S_ISGID) {
-               fe->i_gid = cpu_to_le32(dir->i_gid);
+               gid = dir->i_gid;
                if (S_ISDIR(mode))
                        mode |= S_ISGID;
        } else
-               fe->i_gid = cpu_to_le32(current->fsgid);
+               gid = current->fsgid;
+
+       fe->i_uid = cpu_to_le32(TAGINO_UID(DX_TAG(inode), uid, tag));
+       fe->i_gid = cpu_to_le32(TAGINO_GID(DX_TAG(inode), gid, tag));
+       inode->i_tag = tag;
        fe->i_mode = cpu_to_le16(mode);
        if (S_ISCHR(mode) || S_ISBLK(mode))
                fe->id1.dev1.i_rdev = cpu_to_le64(huge_encode_dev(dev));
@@ -2316,5 +2326,6 @@ const struct inode_operations ocfs2_dir_
        .rename         = ocfs2_rename,
        .setattr        = ocfs2_setattr,
        .getattr        = ocfs2_getattr,
+       .sync_flags     = ocfs2_sync_flags,
        .permission     = ocfs2_permission,
 };
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/ocfs2.h linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/ocfs2.h
--- linux-2.6.22.10/fs/ocfs2/ocfs2.h    2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/ocfs2.h 2007-08-05 20:53:13 +0200
@@ -170,6 +170,7 @@ enum ocfs2_mount_options
        OCFS2_MOUNT_NOINTR  = 1 << 2,   /* Don't catch signals */
        OCFS2_MOUNT_ERRORS_PANIC = 1 << 3, /* Panic on errors */
        OCFS2_MOUNT_DATA_WRITEBACK = 1 << 4, /* No data ordering */
+       OCFS2_MOUNT_TAGGED = 1 << 8, /* use tagging */
 };
 
 #define OCFS2_OSB_SOFT_RO      0x0001
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/ocfs2_fs.h linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/ocfs2_fs.h
--- linux-2.6.22.10/fs/ocfs2/ocfs2_fs.h 2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/ocfs2_fs.h      2007-08-05 20:53:13 +0200
@@ -152,8 +152,12 @@
 #define OCFS2_NOATIME_FL       (0x00000080)    /* do not update atime */
 #define OCFS2_DIRSYNC_FL       (0x00010000)    /* dirsync behaviour (directories only) */
 
+#define OCFS2_BARRIER_FL       (0x04000000)    /* Barrier for chroot() */
+#define OCFS2_IUNLINK_FL       (0x08000000)    /* Immutable unlink */
+
 #define OCFS2_FL_VISIBLE       (0x000100FF)    /* User visible flags */
 #define OCFS2_FL_MODIFIABLE    (0x000100FF)    /* User modifiable flags */
+#define OCFS2_FL_MASK          (0x0F0100FF)
 
 /*
  * Extent record flags (e_node.leaf.flags)
diff -NurpP --minimal linux-2.6.22.10/fs/ocfs2/super.c linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/super.c
--- linux-2.6.22.10/fs/ocfs2/super.c    2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/ocfs2/super.c 2007-08-05 20:53:13 +0200
@@ -140,6 +140,7 @@ enum {
        Opt_data_ordered,
        Opt_data_writeback,
        Opt_atime_quantum,
+       Opt_tag, Opt_notag, Opt_tagid,
        Opt_err,
 };
 
@@ -154,6 +155,9 @@ static match_table_t tokens = {
        {Opt_data_ordered, "data=ordered"},
        {Opt_data_writeback, "data=writeback"},
        {Opt_atime_quantum, "atime_quantum=%u"},
+       {Opt_tag, "tag"},
+       {Opt_notag, "notag"},
+       {Opt_tagid, "tagid=%u"},
        {Opt_err, NULL}
 };
 
@@ -362,6 +366,13 @@ static int ocfs2_remount(struct super_bl
                goto out;
        }
 
+       if ((parsed_options & OCFS2_MOUNT_TAGGED) &&
+               !(sb->s_flags & MS_TAGGED)) {
+               ret = -EINVAL;
+               mlog(ML_ERROR, "Cannot change tagging on remount\n");
+               goto out;
+       }
+
        if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) !=
            (parsed_options & OCFS2_MOUNT_HB_LOCAL)) {
                ret = -EINVAL;
@@ -654,6 +665,9 @@ static int ocfs2_fill_super(struct super
 
        ocfs2_complete_mount_recovery(osb);
 
+       if (osb->s_mount_opt & OCFS2_MOUNT_TAGGED)
+               sb->s_flags |= MS_TAGGED;
+
        if (ocfs2_mount_local(osb))
                snprintf(nodestr, sizeof(nodestr), "local");
        else
@@ -782,6 +796,20 @@ static int ocfs2_parse_options(struct su
                        else
                                osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM;
                        break;
+#ifndef CONFIG_TAGGING_NONE
+               case Opt_tag:
+                       *mount_opt |= OCFS2_MOUNT_TAGGED;
+                       break;
+               case Opt_notag:
+                       *mount_opt &= ~OCFS2_MOUNT_TAGGED;
+                       break;
+#endif
+#ifdef CONFIG_PROPAGATE
+               case Opt_tagid:
+                       /* use args[0] */
+                       *mount_opt |= OCFS2_MOUNT_TAGGED;
+                       break;
+#endif
                default:
                        mlog(ML_ERROR,
                             "Unrecognized mount option \"%s\" "
diff -NurpP --minimal linux-2.6.22.10/fs/open.c linux-2.6.22.10-vs2.3.0.29/fs/open.c
--- linux-2.6.22.10/fs/open.c   2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/open.c        2007-08-05 20:53:13 +0200
@@ -26,22 +26,31 @@
 #include <linux/syscalls.h>
 #include <linux/rcupdate.h>
 #include <linux/audit.h>
+#include <linux/vs_base.h>
+#include <linux/vs_limit.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vs_tag.h>
+#include <linux/vs_cowbl.h>
 
 int vfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
        int retval = -ENODEV;
 
        if (dentry) {
+               struct super_block *sb = dentry->d_sb;
+
                retval = -ENOSYS;
-               if (dentry->d_sb->s_op->statfs) {
+               if (sb->s_op->statfs) {
                        memset(buf, 0, sizeof(*buf));
                        retval = security_sb_statfs(dentry);
                        if (retval)
                                return retval;
-                       retval = dentry->d_sb->s_op->statfs(dentry, buf);
+                       retval = sb->s_op->statfs(dentry, buf);
                        if (retval == 0 && buf->f_frsize == 0)
                                buf->f_frsize = buf->f_bsize;
                }
+               if (!vx_check(0, VS_ADMIN|VS_WATCH))
+                       vx_vsi_statfs(sb, buf);
        }
        return retval;
 }
@@ -248,7 +257,7 @@ static long do_sys_truncate(const char _
                goto dput_and_out;
 
        error = -EROFS;
-       if (IS_RDONLY(inode))
+       if (IS_RDONLY(inode) || MNT_IS_RDONLY(nd.mnt))
                goto dput_and_out;
 
        error = -EPERM;
@@ -397,7 +406,7 @@ asmlinkage long sys_faccessat(int dfd, c
           special_file(nd.dentry->d_inode->i_mode))
                goto out_path_release;
 
-       if(IS_RDONLY(nd.dentry->d_inode))
+       if(IS_RDONLY(nd.dentry->d_inode) || MNT_IS_RDONLY(nd.mnt))
                res = -EROFS;
 
 out_path_release:
@@ -511,7 +520,7 @@ asmlinkage long sys_fchmod(unsigned int 
        audit_inode(NULL, inode);
 
        err = -EROFS;
-       if (IS_RDONLY(inode))
+       if (IS_RDONLY(inode) || MNT_IS_RDONLY(file->f_vfsmnt))
                goto out_putf;
        err = -EPERM;
        if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
@@ -541,11 +550,11 @@ asmlinkage long sys_fchmodat(int dfd, co
        error = __user_walk_fd(dfd, filename, LOOKUP_FOLLOW, &nd);
        if (error)
                goto out;
-       inode = nd.dentry->d_inode;
 
-       error = -EROFS;
-       if (IS_RDONLY(inode))
+       error = cow_check_and_break(&nd);
+       if (error)
                goto dput_and_out;
+       inode = nd.dentry->d_inode;
 
        error = -EPERM;
        if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
@@ -570,7 +579,8 @@ asmlinkage long sys_chmod(const char __u
        return sys_fchmodat(AT_FDCWD, filename, mode);
 }
 
-static int chown_common(struct dentry * dentry, uid_t user, gid_t group)
+static int chown_common(struct dentry *dentry, struct vfsmount *mnt,
+       uid_t user, gid_t group)
 {
        struct inode * inode;
        int error;
@@ -582,7 +592,7 @@ static int chown_common(struct dentry * 
                goto out;
        }
        error = -EROFS;
-       if (IS_RDONLY(inode))
+       if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt))
                goto out;
        error = -EPERM;
        if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
@@ -590,11 +600,11 @@ static int chown_common(struct dentry * 
        newattrs.ia_valid =  ATTR_CTIME;
        if (user != (uid_t) -1) {
                newattrs.ia_valid |= ATTR_UID;
-               newattrs.ia_uid = user;
+               newattrs.ia_uid = dx_map_uid(user);
        }
        if (group != (gid_t) -1) {
                newattrs.ia_valid |= ATTR_GID;
-               newattrs.ia_gid = group;
+               newattrs.ia_gid = dx_map_gid(group);
        }
        if (!S_ISDIR(inode->i_mode))
                newattrs.ia_valid |= ATTR_KILL_SUID|ATTR_KILL_SGID;
@@ -613,7 +623,11 @@ asmlinkage long sys_chown(const char __u
        error = user_path_walk(filename, &nd);
        if (error)
                goto out;
-       error = chown_common(nd.dentry, user, group);
+#ifdef CONFIG_VSERVER_COWBL
+       error = cow_check_and_break(&nd);
+       if (!error)
+#endif
+               error = chown_common(nd.dentry, nd.mnt, user, group);
        path_release(&nd);
 out:
        return error;
@@ -633,7 +647,11 @@ asmlinkage long sys_fchownat(int dfd, co
        error = __user_walk_fd(dfd, filename, follow, &nd);
        if (error)
                goto out;
-       error = chown_common(nd.dentry, user, group);
+#ifdef CONFIG_VSERVER_COWBL
+       error = cow_check_and_break(&nd);
+       if (!error)
+#endif
+               error = chown_common(nd.dentry, nd.mnt, user, group);
        path_release(&nd);
 out:
        return error;
@@ -647,7 +665,11 @@ asmlinkage long sys_lchown(const char __
        error = user_path_walk_link(filename, &nd);
        if (error)
                goto out;
-       error = chown_common(nd.dentry, user, group);
+#ifdef CONFIG_VSERVER_COWBL
+       error = cow_check_and_break(&nd);
+       if (!error)
+#endif
+               error = chown_common(nd.dentry, nd.mnt, user, group);
        path_release(&nd);
 out:
        return error;
@@ -666,7 +688,7 @@ asmlinkage long sys_fchown(unsigned int 
 
        dentry = file->f_path.dentry;
        audit_inode(NULL, dentry->d_inode);
-       error = chown_common(dentry, user, group);
+       error = chown_common(dentry, file->f_vfsmnt, user, group);
        fput(file);
 out:
        return error;
@@ -893,6 +915,7 @@ repeat:
        FD_SET(fd, fdt->open_fds);
        FD_CLR(fd, fdt->close_on_exec);
        files->next_fd = fd + 1;
+       vx_openfd_inc(fd);
 #if 1
        /* Sanity check */
        if (fdt->fd[fd] != NULL) {
@@ -915,6 +938,7 @@ static void __put_unused_fd(struct files
        __FD_CLR(fd, fdt->open_fds);
        if (fd < files->next_fd)
                files->next_fd = fd;
+       vx_openfd_dec(fd);
 }
 
 void fastcall put_unused_fd(unsigned int fd)
diff -NurpP --minimal linux-2.6.22.10/fs/proc/array.c linux-2.6.22.10-vs2.3.0.29/fs/proc/array.c
--- linux-2.6.22.10/fs/proc/array.c     2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/proc/array.c  2007-10-05 15:07:22 +0200
@@ -75,6 +75,8 @@
 #include <linux/cpuset.h>
 #include <linux/rcupdate.h>
 #include <linux/delayacct.h>
+#include <linux/vs_context.h>
+#include <linux/vs_network.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -134,8 +136,9 @@ static const char *task_state_array[] = 
        "D (disk sleep)",       /*  2 */
        "T (stopped)",          /*  4 */
        "T (tracing stop)",     /*  8 */
-       "Z (zombie)",           /* 16 */
-       "X (dead)"              /* 32 */
+       "H (on hold)",          /* 16 */
+       "Z (zombie)",           /* 32 */
+       "X (dead)",             /* 64 */
 };
 
 static inline const char * get_task_state(struct task_struct *tsk)
@@ -144,7 +147,8 @@ static inline const char * get_task_stat
                                            TASK_INTERRUPTIBLE |
                                            TASK_UNINTERRUPTIBLE |
                                            TASK_STOPPED |
-                                           TASK_TRACED)) |
+                                          TASK_TRACED |
+                                          TASK_ONHOLD)) |
                        (tsk->exit_state & (EXIT_ZOMBIE |
                                            EXIT_DEAD));
        const char **p = &task_state_array[0];
@@ -161,8 +165,16 @@ static inline char * task_state(struct t
        struct group_info *group_info;
        int g;
        struct fdtable *fdt = NULL;
+       pid_t pid, ptgid, tppid, tgid;
 
        rcu_read_lock();
+       tgid = vx_map_tgid(p->tgid);
+       pid = vx_map_pid(p->pid);
+       ptgid = vx_map_pid(pid_alive(p) ?
+               rcu_dereference(p->real_parent)->tgid : 0);
+       tppid = vx_map_pid(pid_alive(p) && p->ptrace ?
+               rcu_dereference(p->parent)->pid : 0);
+
        buffer += sprintf(buffer,
                "State:\t%s\n"
                "SleepAVG:\t%lu%%\n"
@@ -174,9 +186,7 @@ static inline char * task_state(struct t
                "Gid:\t%d\t%d\t%d\t%d\n",
                get_task_state(p),
                (p->sleep_avg/1024)*100/(1020000000/1024),
-               p->tgid, p->pid,
-               pid_alive(p) ? rcu_dereference(p->real_parent)->tgid : 0,
-               pid_alive(p) && p->ptrace ? rcu_dereference(p->parent)->pid : 0,
+               tgid, pid, (pid > 1) ? ptgid : 0, tppid,
                p->uid, p->euid, p->suid, p->fsuid,
                p->gid, p->egid, p->sgid, p->fsgid);
 
@@ -283,12 +293,15 @@ static inline char * task_sig(struct tas
 
 static inline char *task_cap(struct task_struct *p, char *buffer)
 {
-    return buffer + sprintf(buffer, "CapInh:\t%016x\n"
-                           "CapPrm:\t%016x\n"
-                           "CapEff:\t%016x\n",
-                           cap_t(p->cap_inheritable),
-                           cap_t(p->cap_permitted),
-                           cap_t(p->cap_effective));
+       struct vx_info *vxi = p->vx_info;
+
+       return buffer + sprintf(buffer,
+               "CapInh:\t%016x\n"
+               "CapPrm:\t%016x\n"
+               "CapEff:\t%016x\n",
+               (unsigned)vx_info_mbcap(vxi, p->cap_inheritable),
+               (unsigned)vx_info_mbcap(vxi, p->cap_permitted),
+               (unsigned)vx_info_mbcap(vxi, p->cap_effective));
 }
 
 int proc_pid_status(struct task_struct *task, char * buffer)
@@ -306,6 +319,12 @@ int proc_pid_status(struct task_struct *
        buffer = task_sig(task, buffer);
        buffer = task_cap(task, buffer);
        buffer = cpuset_task_status_allowed(task, buffer);
+
+       if (task_vx_flags(task, VXF_HIDE_VINFO, 0))
+               goto skip;
+       buffer += sprintf (buffer,"VxID: %d\n", vx_task_xid(task));
+       buffer += sprintf (buffer,"NxID: %d\n", nx_task_nid(task));
+skip:
 #if defined(CONFIG_S390)
        buffer = task_show_regs(task, buffer);
 #endif
@@ -320,7 +339,7 @@ static int do_task_stat(struct task_stru
        sigset_t sigign, sigcatch;
        char state;
        int res;
-       pid_t ppid = 0, pgid = -1, sid = -1;
+       pid_t pid = 0, ppid = 0, pgid = -1, sid = -1;
        int num_threads = 0;
        struct mm_struct *mm;
        unsigned long long start_time;
@@ -382,8 +401,10 @@ static int do_task_stat(struct task_stru
                }
 
                sid = signal_session(sig);
-               pgid = process_group(task);
-               ppid = rcu_dereference(task->real_parent)->tgid;
+               pid = vx_info_map_pid(task->vx_info, task->pid);
+               pgid = vx_info_map_pid(task->vx_info, process_group(task));
+               ppid = (pid > 1) ? vx_info_map_tgid(task->vx_info,
+                       rcu_dereference(task->real_parent)->tgid) : 0;
 
                unlock_task_sighand(task, &flags);
        }
@@ -410,10 +431,21 @@ static int do_task_stat(struct task_stru
        /* convert nsec -> ticks */
        start_time = nsec_to_clock_t(start_time);
 
+       /* fixup start time for virt uptime */
+       if (vx_flags(VXF_VIRT_UPTIME, 0)) {
+               unsigned long long bias =
+                       current->vx_info->cvirt.bias_clock;
+
+               if (start_time > bias)
+                       start_time -= bias;
+               else
+                       start_time = 0;
+       }
+
        res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %u %lu \
 %lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \
 %lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu\n",
-               task->pid,
+               pid,
                tcomm,
                state,
                ppid,
diff -NurpP --minimal linux-2.6.22.10/fs/proc/base.c linux-2.6.22.10-vs2.3.0.29/fs/proc/base.c
--- linux-2.6.22.10/fs/proc/base.c      2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/proc/base.c   2007-09-05 02:49:29 +0200
@@ -73,6 +73,9 @@
 #include <linux/poll.h>
 #include <linux/nsproxy.h>
 #include <linux/oom.h>
+#include <linux/vs_context.h>
+#include <linux/vs_network.h>
+
 #include "internal.h"
 
 /* NOTE:
@@ -1049,6 +1052,8 @@ static struct inode *proc_pid_make_inode
                inode->i_uid = task->euid;
                inode->i_gid = task->egid;
        }
+       /* procfs is xid tagged */
+       inode->i_tag = (tag_t)vx_task_xid(task);
        security_task_to_inode(task, inode);
 
 out:
@@ -1082,6 +1087,8 @@ static int pid_getattr(struct vfsmount *
 
 /* dentry stuff */
 
+static unsigned name_to_int(struct dentry *dentry);
+
 /*
  *     Exceptional case: normally we are not allowed to unhash a busy
  * directory. In this case, however, we can do it - no aliasing problems
@@ -1102,6 +1109,12 @@ static int pid_revalidate(struct dentry 
        struct inode *inode = dentry->d_inode;
        struct task_struct *task = get_proc_task(inode);
        if (task) {
+               unsigned pid = name_to_int(dentry);
+               if (pid != ~0U && pid != vx_map_pid(task->pid)) {
+                       put_task_struct(task);
+                       goto drop;
+               }
+
                if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
                    task_dumpable(task)) {
                        inode->i_uid = task->euid;
@@ -1115,6 +1128,7 @@ static int pid_revalidate(struct dentry 
                put_task_struct(task);
                return 1;
        }
+drop:
        d_drop(dentry);
        return 0;
 }
@@ -1595,6 +1609,13 @@ static struct dentry *proc_pident_lookup
        if (!task)
                goto out_no_task;
 
+       /* TODO: maybe we can come up with a generic approach? */
+       if (task_vx_flags(task, VXF_HIDE_VINFO, 0) &&
+               (dentry->d_name.len == 5) &&
+               (!memcmp(dentry->d_name.name, "vinfo", 5) ||
+               !memcmp(dentry->d_name.name, "ninfo", 5)))
+               goto out;
+
        /*
         * Yes, it does not scale. And it should not. Don't add
         * new entries into /proc/<tgid>/ without very good reasons.
@@ -1790,14 +1811,14 @@ static int proc_self_readlink(struct den
                              int buflen)
 {
        char tmp[PROC_NUMBUF];
-       sprintf(tmp, "%d", current->tgid);
+       sprintf(tmp, "%d", vx_map_tgid(current->tgid));
        return vfs_readlink(dentry,buffer,buflen,tmp);
 }
 
 static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
        char tmp[PROC_NUMBUF];
-       sprintf(tmp, "%d", current->tgid);
+       sprintf(tmp, "%d", vx_map_tgid(current->tgid));
        return ERR_PTR(vfs_follow_link(nd,tmp));
 }
 
@@ -1891,7 +1912,7 @@ out_iput:
 static struct dentry *proc_base_lookup(struct inode *dir, struct dentry *dentry)
 {
        struct dentry *error;
-       struct task_struct *task = get_proc_task(dir);
+       struct task_struct *task = get_proc_task_real(dir);
        const struct pid_entry *p, *last;
 
        error = ERR_PTR(-ENOENT);
@@ -1956,6 +1977,9 @@ static int proc_pid_io_accounting(struct
 static const struct file_operations proc_task_operations;
 static const struct inode_operations proc_task_inode_operations;
 
+extern int proc_pid_vx_info(struct task_struct *, char *);
+extern int proc_pid_nx_info(struct task_struct *, char *);
+
 static const struct pid_entry tgid_base_stuff[] = {
        DIR("task",       S_IRUGO|S_IXUGO, task),
        DIR("fd",         S_IRUSR|S_IXUSR, fd),
@@ -1995,6 +2019,8 @@ static const struct pid_entry tgid_base_
 #ifdef CONFIG_CPUSETS
        REG("cpuset",     S_IRUGO, cpuset),
 #endif
+       INF("vinfo",      S_IRUGO, pid_vx_info),
+       INF("ninfo",      S_IRUGO, pid_nx_info),
        INF("oom_score",  S_IRUGO, oom_score),
        REG("oom_adj",    S_IRUGO|S_IWUSR, oom_adjust),
 #ifdef CONFIG_AUDITSYSCALL
@@ -2141,9 +2167,11 @@ struct dentry *proc_pid_lookup(struct in
        tgid = name_to_int(dentry);
        if (tgid == ~0U)
                goto out;
+       if (vx_current_initpid(tgid))
+               goto out;
 
        rcu_read_lock();
-       task = find_task_by_pid(tgid);
+       task = vx_find_proc_task_by_pid(tgid);
        if (task)
                get_task_struct(task);
        rcu_read_unlock();
@@ -2198,7 +2226,7 @@ static int proc_pid_fill_cache(struct fi
        struct task_struct *task, int tgid)
 {
        char name[PROC_NUMBUF];
-       int len = snprintf(name, sizeof(name), "%d", tgid);
+       int len = snprintf(name, sizeof(name), "%d", vx_map_tgid(tgid));
        return proc_fill_cache(filp, dirent, filldir, name, len,
                                proc_pid_instantiate, task, NULL);
 }
@@ -2207,7 +2235,7 @@ static int proc_pid_fill_cache(struct fi
 int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
 {
        unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY;
-       struct task_struct *reaper = get_proc_task(filp->f_path.dentry->d_inode);
+       struct task_struct *reaper = get_proc_task_real(filp->f_path.dentry->d_inode);
        struct task_struct *task;
        int tgid;
 
@@ -2226,6 +2254,8 @@ int proc_pid_readdir(struct file * filp,
             put_task_struct(task), task = next_tgid(tgid + 1)) {
                tgid = task->pid;
                filp->f_pos = tgid + TGID_OFFSET;
+               if (!vx_proc_task_visible(task))
+                       continue;
                if (proc_pid_fill_cache(filp, dirent, filldir, task, tgid) < 0) {
                        put_task_struct(task);
                        goto out;
@@ -2352,9 +2382,11 @@ static struct dentry *proc_task_lookup(s
        tid = name_to_int(dentry);
        if (tid == ~0U)
                goto out;
+       if (vx_current_initpid(tid))
+               goto out;
 
        rcu_read_lock();
-       task = find_task_by_pid(tid);
+       task = vx_find_proc_task_by_pid(tid);
        if (task)
                get_task_struct(task);
        rcu_read_unlock();
@@ -2499,7 +2531,7 @@ static int proc_task_readdir(struct file
        for (task = first_tid(leader, tid, pos - 2);
             task;
             task = next_tid(task), pos++) {
-               tid = task->pid;
+               tid = vx_map_pid(task->pid);
                if (proc_task_fill_cache(filp, dirent, filldir, task, tid) < 0) {
                        /* returning this tgid failed, save it as the first
                         * pid for the next readir call */
diff -NurpP --minimal linux-2.6.22.10/fs/proc/generic.c linux-2.6.22.10-vs2.3.0.29/fs/proc/generic.c
--- linux-2.6.22.10/fs/proc/generic.c   2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/proc/generic.c        2007-08-05 20:53:13 +0200
@@ -20,6 +20,7 @@
 #include <linux/namei.h>
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
+#include <linux/vserver/inode.h>
 #include <asm/uaccess.h>
 
 #include "internal.h"
@@ -395,6 +396,8 @@ struct dentry *proc_lookup(struct inode 
                for (de = de->subdir; de ; de = de->next) {
                        if (de->namelen != dentry->d_name.len)
                                continue;
+                       if (!vx_hide_check(0, de->vx_flags))
+                               continue;
                        if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
                                unsigned int ino = de->low_ino;
 
@@ -402,6 +405,8 @@ struct dentry *proc_lookup(struct inode 
                                spin_unlock(&proc_subdir_lock);
                                error = -EINVAL;
                                inode = proc_get_inode(dir->i_sb, ino, de);
+                               /* generic proc entries belong to the host */
+                               inode->i_tag = 0;
                                spin_lock(&proc_subdir_lock);
                                break;
                        }
@@ -482,6 +487,8 @@ int proc_readdir(struct file * filp,
 
                                /* filldir passes info to user space */
                                de_get(de);
+                               if (!vx_hide_check(0, de->vx_flags))
+                                       goto skip;
                                spin_unlock(&proc_subdir_lock);
                                if (filldir(dirent, de->name, de->namelen, filp->f_pos,
                                            de->low_ino, de->mode >> 12) < 0) {
@@ -489,6 +496,7 @@ int proc_readdir(struct file * filp,
                                        goto out;
                                }
                                spin_lock(&proc_subdir_lock);
+                       skip:
                                filp->f_pos++;
                                next = de->next;
                                de_put(de);
@@ -613,6 +621,7 @@ static struct proc_dir_entry *proc_creat
        ent->namelen = len;
        ent->mode = mode;
        ent->nlink = nlink;
+       ent->vx_flags = IATTR_PROC_DEFAULT;
  out:
        return ent;
 }
@@ -633,7 +642,8 @@ struct proc_dir_entry *proc_symlink(cons
                                kfree(ent->data);
                                kfree(ent);
                                ent = NULL;
-                       }
+                       } else
+                               ent->vx_flags = IATTR_PROC_SYMLINK;
                } else {
                        kfree(ent);
                        ent = NULL;
diff -NurpP --minimal linux-2.6.22.10/fs/proc/inode.c linux-2.6.22.10-vs2.3.0.29/fs/proc/inode.c
--- linux-2.6.22.10/fs/proc/inode.c     2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/proc/inode.c  2007-08-05 20:53:13 +0200
@@ -160,6 +160,8 @@ struct inode *proc_get_inode(struct supe
                        inode->i_uid = de->uid;
                        inode->i_gid = de->gid;
                }
+               if (de->vx_flags)
+                       PROC_I(inode)->vx_flags = de->vx_flags;
                if (de->size)
                        inode->i_size = de->size;
                if (de->nlink)
diff -NurpP --minimal linux-2.6.22.10/fs/proc/internal.h linux-2.6.22.10-vs2.3.0.29/fs/proc/internal.h
--- linux-2.6.22.10/fs/proc/internal.h  2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/proc/internal.h       2007-08-05 20:53:13 +0200
@@ -10,6 +10,7 @@
  */
 
 #include <linux/proc_fs.h>
+#include <linux/vs_pid.h>
 
 #ifdef CONFIG_PROC_SYSCTL
 extern int proc_sys_init(void);
@@ -64,11 +65,16 @@ static inline struct pid *proc_pid(struc
        return PROC_I(inode)->pid;
 }
 
-static inline struct task_struct *get_proc_task(struct inode *inode)
+static inline struct task_struct *get_proc_task_real(struct inode *inode)
 {
        return get_pid_task(proc_pid(inode), PIDTYPE_PID);
 }
 
+static inline struct task_struct *get_proc_task(struct inode *inode)
+{
+       return vx_get_proc_task(inode, proc_pid(inode));
+}
+
 static inline int proc_fd(struct inode *inode)
 {
        return PROC_I(inode)->fd;
diff -NurpP --minimal linux-2.6.22.10/fs/proc/proc_misc.c linux-2.6.22.10-vs2.3.0.29/fs/proc/proc_misc.c
--- linux-2.6.22.10/fs/proc/proc_misc.c 2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/proc/proc_misc.c      2007-08-05 20:53:13 +0200
@@ -53,6 +53,8 @@
 #include <asm/div64.h>
 #include "internal.h"
 
+#include <linux/vs_cvirt.h>
+
 #define LOAD_INT(x) ((x) >> FSHIFT)
 #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
 /*
@@ -82,17 +84,32 @@ static int proc_calc_metrics(char *page,
 static int loadavg_read_proc(char *page, char **start, off_t off,
                                 int count, int *eof, void *data)
 {
+       unsigned int running, threads;
        int a, b, c;
        int len;
 
-       a = avenrun[0] + (FIXED_1/200);
-       b = avenrun[1] + (FIXED_1/200);
-       c = avenrun[2] + (FIXED_1/200);
-       len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n",
+       if (vx_flags(VXF_VIRT_LOAD, 0)) {
+               struct vx_info *vxi = current->vx_info;
+
+               a = vxi->cvirt.load[0] + (FIXED_1/200);
+               b = vxi->cvirt.load[1] + (FIXED_1/200);
+               c = vxi->cvirt.load[2] + (FIXED_1/200);
+
+               running = atomic_read(&vxi->cvirt.nr_running);
+               threads = atomic_read(&vxi->cvirt.nr_threads);
+       } else {
+               a = avenrun[0] + (FIXED_1/200);
+               b = avenrun[1] + (FIXED_1/200);
+               c = avenrun[2] + (FIXED_1/200);
+
+               running = nr_running();
+               threads = nr_threads;
+       }
+       len = sprintf(page,"%d.%02d %d.%02d %d.%02d %d/%d %d\n",
                LOAD_INT(a), LOAD_FRAC(a),
                LOAD_INT(b), LOAD_FRAC(b),
                LOAD_INT(c), LOAD_FRAC(c),
-               nr_running(), nr_threads, current->nsproxy->pid_ns->last_pid);
+               running, threads, current->nsproxy->pid_ns->last_pid);
        return proc_calc_metrics(page, start, off, count, eof, len);
 }
 
@@ -106,6 +123,9 @@ static int uptime_read_proc(char *page, 
 
        do_posix_clock_monotonic_gettime(&uptime);
        cputime_to_timespec(idletime, &idle);
+       if (vx_flags(VXF_VIRT_UPTIME, 0))
+               vx_vsi_uptime(&uptime, &idle);
+
        len = sprintf(page,"%lu.%02lu %lu.%02lu\n",
                        (unsigned long) uptime.tv_sec,
                        (uptime.tv_nsec / (NSEC_PER_SEC / 100)),
@@ -137,7 +157,7 @@ static int meminfo_read_proc(char *page,
 
        cached = global_page_state(NR_FILE_PAGES) -
                        total_swapcache_pages - i.bufferram;
-       if (cached < 0)
+       if (cached < 0 || vx_flags(VXF_VIRT_MEM, 0))
                cached = 0;
 
        get_vmalloc_info(&vmi);
diff -NurpP --minimal linux-2.6.22.10/fs/proc/root.c linux-2.6.22.10-vs2.3.0.29/fs/proc/root.c
--- linux-2.6.22.10/fs/proc/root.c      2007-05-02 19:25:21 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/proc/root.c   2007-08-05 20:53:13 +0200
@@ -22,6 +22,9 @@
 #include "internal.h"
 
 struct proc_dir_entry *proc_net, *proc_net_stat, *proc_bus, *proc_root_fs, *proc_root_driver;
+struct proc_dir_entry *proc_virtual;
+
+extern void proc_vx_init(void);
 
 static int proc_get_sb(struct file_system_type *fs_type,
        int flags, const char *dev_name, void *data, struct vfsmount *mnt)
@@ -79,6 +82,7 @@ void __init proc_root_init(void)
        proc_device_tree_init();
 #endif
        proc_bus = proc_mkdir("bus", NULL);
+       proc_vx_init();
        proc_sys_init();
 }
 
diff -NurpP --minimal linux-2.6.22.10/fs/quota.c linux-2.6.22.10-vs2.3.0.29/fs/quota.c
--- linux-2.6.22.10/fs/quota.c  2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/quota.c       2007-08-05 20:53:13 +0200
@@ -16,6 +16,7 @@
 #include <linux/buffer_head.h>
 #include <linux/capability.h>
 #include <linux/quotaops.h>
+#include <linux/vs_context.h>
 
 /* Check validity of generic quotactl commands */
 static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
@@ -80,11 +81,11 @@ static int generic_quotactl_valid(struct
        if (cmd == Q_GETQUOTA) {
                if (((type == USRQUOTA && current->euid != id) ||
                     (type == GRPQUOTA && !in_egroup_p(id))) &&
-                   !capable(CAP_SYS_ADMIN))
+                   !vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
                        return -EPERM;
        }
        else if (cmd != Q_GETFMT && cmd != Q_SYNC && cmd != Q_GETINFO)
-               if (!capable(CAP_SYS_ADMIN))
+               if (!vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
                        return -EPERM;
 
        return 0;
@@ -131,10 +132,10 @@ static int xqm_quotactl_valid(struct sup
        if (cmd == Q_XGETQUOTA) {
                if (((type == XQM_USRQUOTA && current->euid != id) ||
                     (type == XQM_GRPQUOTA && !in_egroup_p(id))) &&
-                    !capable(CAP_SYS_ADMIN))
+                    !vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
                        return -EPERM;
        } else if (cmd != Q_XGETQSTAT && cmd != Q_XQUOTASYNC) {
-               if (!capable(CAP_SYS_ADMIN))
+               if (!vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
                        return -EPERM;
        }
 
@@ -327,6 +328,46 @@ static int do_quotactl(struct super_bloc
        return 0;
 }
 
+#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE)
+
+#include <linux/vroot.h>
+#include <linux/major.h>
+#include <linux/module.h>
+#include <linux/kallsyms.h>
+#include <linux/vserver/debug.h>
+
+static vroot_grb_func *vroot_get_real_bdev = NULL;
+
+static spinlock_t vroot_grb_lock = SPIN_LOCK_UNLOCKED;
+
+int register_vroot_grb(vroot_grb_func *func) {
+       int ret = -EBUSY;
+
+       spin_lock(&vroot_grb_lock);
+       if (!vroot_get_real_bdev) {
+               vroot_get_real_bdev = func;
+               ret = 0;
+       }
+       spin_unlock(&vroot_grb_lock);
+       return ret;
+}
+EXPORT_SYMBOL(register_vroot_grb);
+
+int unregister_vroot_grb(vroot_grb_func *func) {
+       int ret = -EINVAL;
+
+       spin_lock(&vroot_grb_lock);
+       if (vroot_get_real_bdev) {
+               vroot_get_real_bdev = NULL;
+               ret = 0;
+       }
+       spin_unlock(&vroot_grb_lock);
+       return ret;
+}
+EXPORT_SYMBOL(unregister_vroot_grb);
+
+#endif
+
 /*
  * look up a superblock on which quota ops will be performed
  * - use the name of a block device to find the superblock thereon
@@ -344,6 +385,22 @@ static inline struct super_block *quotac
        putname(tmp);
        if (IS_ERR(bdev))
                return ERR_PTR(PTR_ERR(bdev));
+#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE)
+       if (bdev && bdev->bd_inode &&
+                       imajor(bdev->bd_inode) == VROOT_MAJOR) {
+               struct block_device *bdnew = (void *)-EINVAL;
+
+               if (vroot_get_real_bdev)
+                       bdnew = vroot_get_real_bdev(bdev);
+               else
+                       vxdprintk(VXD_CBIT(misc, 0),
+                                       "vroot_get_real_bdev not set");
+               bdput(bdev);
+               if (IS_ERR(bdnew))
+                       return ERR_PTR(PTR_ERR(bdnew));
+               bdev = bdnew;
+       }
+#endif
        sb = get_super(bdev);
        bdput(bdev);
        if (!sb)
diff -NurpP --minimal linux-2.6.22.10/fs/reiserfs/bitmap.c linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/bitmap.c
--- linux-2.6.22.10/fs/reiserfs/bitmap.c        2007-02-06 03:01:29 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/bitmap.c     2007-10-05 15:07:22 +0200
@@ -13,6 +13,7 @@
 #include <linux/reiserfs_fs_sb.h>
 #include <linux/reiserfs_fs_i.h>
 #include <linux/quotaops.h>
+#include <linux/vs_dlimit.h>
 
 #define PREALLOCATION_SIZE 9
 
@@ -425,8 +426,10 @@ static void _reiserfs_free_block(struct 
        set_sb_free_blocks(rs, sb_free_blocks(rs) + 1);
 
        journal_mark_dirty(th, s, sbh);
-       if (for_unformatted)
+       if (for_unformatted) {
+               DLIMIT_FREE_BLOCK(inode, 1);
                DQUOT_FREE_BLOCK_NODIRTY(inode, 1);
+       }
 }
 
 void reiserfs_free_block(struct reiserfs_transaction_handle *th,
@@ -1034,6 +1037,7 @@ static inline int blocknrs_and_prealloc_
        b_blocknr_t finish = SB_BLOCK_COUNT(s) - 1;
        int passno = 0;
        int nr_allocated = 0;
+       int blocks;
 
        determine_prealloc_size(hint);
        if (!hint->formatted_node) {
@@ -1043,19 +1047,30 @@ static inline int blocknrs_and_prealloc_
                               "reiserquota: allocating %d blocks id=%u",
                               amount_needed, hint->inode->i_uid);
 #endif
-               quota_ret =
-                   DQUOT_ALLOC_BLOCK_NODIRTY(hint->inode, amount_needed);
-               if (quota_ret)  /* Quota exceeded? */
+               quota_ret = DQUOT_ALLOC_BLOCK_NODIRTY(hint->inode,
+                       amount_needed);
+               if (quota_ret)
                        return QUOTA_EXCEEDED;
+               if (DLIMIT_ALLOC_BLOCK(hint->inode, amount_needed)) {
+                       DQUOT_FREE_BLOCK_NODIRTY(hint->inode,
+                               amount_needed);
+                       return NO_DISK_SPACE;
+               }
+
                if (hint->preallocate && hint->prealloc_size) {
 #ifdef REISERQUOTA_DEBUG
                        reiserfs_debug(s, REISERFS_DEBUG_CODE,
                                       "reiserquota: allocating (prealloc) %d blocks id=%u",
                                       hint->prealloc_size, hint->inode->i_uid);
 #endif
-                       quota_ret =
-                           DQUOT_PREALLOC_BLOCK_NODIRTY(hint->inode,
-                                                        hint->prealloc_size);
+                       quota_ret = DQUOT_PREALLOC_BLOCK_NODIRTY(hint->inode,
+                               hint->prealloc_size);
+                       if (!quota_ret &&
+                               DLIMIT_ALLOC_BLOCK(hint->inode, hint->prealloc_size)) {
+                               DQUOT_FREE_BLOCK_NODIRTY(hint->inode,
+                                       hint->prealloc_size);
+                               quota_ret = 1;
+                       }
                        if (quota_ret)
                                hint->preallocate = hint->prealloc_size = 0;
                }
@@ -1087,7 +1102,10 @@ static inline int blocknrs_and_prealloc_
                                               nr_allocated,
                                               hint->inode->i_uid);
 #endif
-                               DQUOT_FREE_BLOCK_NODIRTY(hint->inode, amount_needed + hint->prealloc_size - nr_allocated);      /* Free not allocated blocks */
+                               /* Free not allocated blocks */
+                               blocks = amount_needed + hint->prealloc_size - nr_allocated;
+                               DLIMIT_FREE_BLOCK(hint->inode, blocks);
+                               DQUOT_FREE_BLOCK_NODIRTY(hint->inode, blocks);
                        }
                        while (nr_allocated--)
                                reiserfs_free_block(hint->th, hint->inode,
@@ -1118,10 +1136,10 @@ static inline int blocknrs_and_prealloc_
                               REISERFS_I(hint->inode)->i_prealloc_count,
                               hint->inode->i_uid);
 #endif
-               DQUOT_FREE_BLOCK_NODIRTY(hint->inode, amount_needed +
-                                        hint->prealloc_size - nr_allocated -
-                                        REISERFS_I(hint->inode)->
-                                        i_prealloc_count);
+               blocks = amount_needed + hint->prealloc_size - nr_allocated -
+                       REISERFS_I(hint->inode)->i_prealloc_count;
+               DLIMIT_FREE_BLOCK(hint->inode, blocks);
+               DQUOT_FREE_BLOCK_NODIRTY(hint->inode, blocks);
        }
 
        return CARRY_ON;
diff -NurpP --minimal linux-2.6.22.10/fs/reiserfs/file.c linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/file.c
--- linux-2.6.22.10/fs/reiserfs/file.c  2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/file.c       2007-09-12 20:04:16 +0200
@@ -1546,4 +1546,5 @@ const struct inode_operations reiserfs_f
        .listxattr = reiserfs_listxattr,
        .removexattr = reiserfs_removexattr,
        .permission = reiserfs_permission,
+       .sync_flags = reiserfs_sync_flags,
 };
diff -NurpP --minimal linux-2.6.22.10/fs/reiserfs/inode.c linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/inode.c
--- linux-2.6.22.10/fs/reiserfs/inode.c 2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/inode.c      2007-08-05 20:53:13 +0200
@@ -16,6 +16,8 @@
 #include <linux/mpage.h>
 #include <linux/writeback.h>
 #include <linux/quotaops.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vs_tag.h>
 
 static int reiserfs_commit_write(struct file *f, struct page *page,
                                 unsigned from, unsigned to);
@@ -50,6 +52,7 @@ void reiserfs_delete_inode(struct inode 
                 * stat data deletion */
                if (!err) 
                        DQUOT_FREE_INODE(inode);
+               DLIMIT_FREE_INODE(inode);
 
                if (journal_end(&th, inode->i_sb, jbegin_count))
                        goto out;
@@ -1112,6 +1115,8 @@ static void init_inode(struct inode *ino
        struct buffer_head *bh;
        struct item_head *ih;
        __u32 rdev;
+       uid_t uid;
+       gid_t gid;
        //int version = ITEM_VERSION_1;
 
        bh = PATH_PLAST_BUFFER(path);
@@ -1135,12 +1140,13 @@ static void init_inode(struct inode *ino
                    (struct stat_data_v1 *)B_I_PITEM(bh, ih);
                unsigned long blocks;
 
+               uid = sd_v1_uid(sd);
+               gid = sd_v1_gid(sd);
+
                set_inode_item_key_version(inode, KEY_FORMAT_3_5);
                set_inode_sd_version(inode, STAT_DATA_V1);
                inode->i_mode = sd_v1_mode(sd);
                inode->i_nlink = sd_v1_nlink(sd);
-               inode->i_uid = sd_v1_uid(sd);
-               inode->i_gid = sd_v1_gid(sd);
                inode->i_size = sd_v1_size(sd);
                inode->i_atime.tv_sec = sd_v1_atime(sd);
                inode->i_mtime.tv_sec = sd_v1_mtime(sd);
@@ -1182,11 +1188,12 @@ static void init_inode(struct inode *ino
                // (directories and symlinks)
                struct stat_data *sd = (struct stat_data *)B_I_PITEM(bh, ih);
 
+               uid    = sd_v2_uid(sd);
+               gid    = sd_v2_gid(sd);
+
                inode->i_mode = sd_v2_mode(sd);
                inode->i_nlink = sd_v2_nlink(sd);
-               inode->i_uid = sd_v2_uid(sd);
                inode->i_size = sd_v2_size(sd);
-               inode->i_gid = sd_v2_gid(sd);
                inode->i_mtime.tv_sec = sd_v2_mtime(sd);
                inode->i_atime.tv_sec = sd_v2_atime(sd);
                inode->i_ctime.tv_sec = sd_v2_ctime(sd);
@@ -1216,6 +1223,10 @@ static void init_inode(struct inode *ino
                sd_attrs_to_i_attrs(sd_v2_attrs(sd), inode);
        }
 
+       inode->i_uid = INOTAG_UID(DX_TAG(inode), uid, gid);
+       inode->i_gid = INOTAG_GID(DX_TAG(inode), uid, gid);
+       inode->i_tag = INOTAG_TAG(DX_TAG(inode), uid, gid, 0);
+
        pathrelse(path);
        if (S_ISREG(inode->i_mode)) {
                inode->i_op = &reiserfs_file_inode_operations;
@@ -1238,13 +1249,15 @@ static void init_inode(struct inode *ino
 static void inode2sd(void *sd, struct inode *inode, loff_t size)
 {
        struct stat_data *sd_v2 = (struct stat_data *)sd;
+       uid_t uid = TAGINO_UID(DX_TAG(inode), inode->i_uid, inode->i_tag);
+       gid_t gid = TAGINO_GID(DX_TAG(inode), inode->i_gid, inode->i_tag);
        __u16 flags;
 
+       set_sd_v2_uid(sd_v2, uid);
+       set_sd_v2_gid(sd_v2, gid);
        set_sd_v2_mode(sd_v2, inode->i_mode);
        set_sd_v2_nlink(sd_v2, inode->i_nlink);
-       set_sd_v2_uid(sd_v2, inode->i_uid);
        set_sd_v2_size(sd_v2, size);
-       set_sd_v2_gid(sd_v2, inode->i_gid);
        set_sd_v2_mtime(sd_v2, inode->i_mtime.tv_sec);
        set_sd_v2_atime(sd_v2, inode->i_atime.tv_sec);
        set_sd_v2_ctime(sd_v2, inode->i_ctime.tv_sec);
@@ -1775,6 +1788,10 @@ int reiserfs_new_inode(struct reiserfs_t
 
        BUG_ON(!th->t_trans_id);
 
+       if (DLIMIT_ALLOC_INODE(inode)) {
+               err = -ENOSPC;
+               goto out_bad_dlimit;
+       }
        if (DQUOT_ALLOC_INODE(inode)) {
                err = -EDQUOT;
                goto out_end_trans;
@@ -1960,6 +1977,9 @@ int reiserfs_new_inode(struct reiserfs_t
        DQUOT_FREE_INODE(inode);
 
       out_end_trans:
+       DLIMIT_FREE_INODE(inode);
+
+      out_bad_dlimit:
        journal_end(th, th->t_super, th->t_blocks_allocated);
        /* Drop can be outside and it needs more credits so it's better to have it outside */
        DQUOT_DROP(inode);
@@ -2690,6 +2710,14 @@ void sd_attrs_to_i_attrs(__u16 sd_attrs,
                        inode->i_flags |= S_IMMUTABLE;
                else
                        inode->i_flags &= ~S_IMMUTABLE;
+               if (sd_attrs & REISERFS_IUNLINK_FL)
+                       inode->i_flags |= S_IUNLINK;
+               else
+                       inode->i_flags &= ~S_IUNLINK;
+               if (sd_attrs & REISERFS_BARRIER_FL)
+                       inode->i_flags |= S_BARRIER;
+               else
+                       inode->i_flags &= ~S_BARRIER;
                if (sd_attrs & REISERFS_APPEND_FL)
                        inode->i_flags |= S_APPEND;
                else
@@ -2712,6 +2740,14 @@ void i_attrs_to_sd_attrs(struct inode *i
                        *sd_attrs |= REISERFS_IMMUTABLE_FL;
                else
                        *sd_attrs &= ~REISERFS_IMMUTABLE_FL;
+               if (inode->i_flags & S_IUNLINK)
+                       *sd_attrs |= REISERFS_IUNLINK_FL;
+               else
+                       *sd_attrs &= ~REISERFS_IUNLINK_FL;
+               if (inode->i_flags & S_BARRIER)
+                       *sd_attrs |= REISERFS_BARRIER_FL;
+               else
+                       *sd_attrs &= ~REISERFS_BARRIER_FL;
                if (inode->i_flags & S_SYNC)
                        *sd_attrs |= REISERFS_SYNC_FL;
                else
@@ -2891,6 +2927,22 @@ static ssize_t reiserfs_direct_IO(int rw
                                  reiserfs_get_blocks_direct_io, NULL);
 }
 
+int reiserfs_sync_flags(struct inode *inode)
+{
+       u16 oldflags, newflags;
+
+       oldflags = REISERFS_I(inode)->i_attrs;
+       newflags = oldflags;
+       i_attrs_to_sd_attrs(inode, &newflags);
+
+       if (oldflags ^ newflags) {
+               REISERFS_I(inode)->i_attrs = newflags;
+               inode->i_ctime = CURRENT_TIME_SEC;
+               mark_inode_dirty(inode);
+       }
+       return 0;
+}
+
 int reiserfs_setattr(struct dentry *dentry, struct iattr *attr)
 {
        struct inode *inode = dentry->d_inode;
@@ -2940,9 +2992,11 @@ int reiserfs_setattr(struct dentry *dent
        }
 
        error = inode_change_ok(inode, attr);
+
        if (!error) {
                if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
-                   (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
+                   (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
+                   (ia_valid & ATTR_TAG && attr->ia_tag != inode->i_tag)) {
                        error = reiserfs_chown_xattrs(inode, attr);
 
                        if (!error) {
@@ -2972,6 +3026,9 @@ int reiserfs_setattr(struct dentry *dent
                                        inode->i_uid = attr->ia_uid;
                                if (attr->ia_valid & ATTR_GID)
                                        inode->i_gid = attr->ia_gid;
+                               if ((attr->ia_valid & ATTR_TAG) &&
+                                       IS_TAGGED(inode))
+                                       inode->i_tag = attr->ia_tag;
                                mark_inode_dirty(inode);
                                error =
                                    journal_end(&th, inode->i_sb, jbegin_count);
diff -NurpP --minimal linux-2.6.22.10/fs/reiserfs/ioctl.c linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/ioctl.c
--- linux-2.6.22.10/fs/reiserfs/ioctl.c 2007-02-06 03:01:29 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/ioctl.c      2007-08-05 20:53:13 +0200
@@ -6,6 +6,7 @@
 #include <linux/fs.h>
 #include <linux/reiserfs_fs.h>
 #include <linux/time.h>
+#include <linux/mount.h>
 #include <asm/uaccess.h>
 #include <linux/pagemap.h>
 #include <linux/smp_lock.h>
@@ -24,7 +25,7 @@ static int reiserfs_unpack(struct inode 
 int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
                   unsigned long arg)
 {
-       unsigned int flags;
+       unsigned int flags, oldflags;
 
        switch (cmd) {
        case REISERFS_IOC_UNPACK:
@@ -43,12 +44,14 @@ int reiserfs_ioctl(struct inode *inode, 
 
                flags = REISERFS_I(inode)->i_attrs;
                i_attrs_to_sd_attrs(inode, (__u16 *) & flags);
+               flags &= REISERFS_FL_USER_VISIBLE;
                return put_user(flags, (int __user *)arg);
        case REISERFS_IOC_SETFLAGS:{
                        if (!reiserfs_attrs(inode->i_sb))
                                return -ENOTTY;
 
-                       if (IS_RDONLY(inode))
+                       if (IS_RDONLY(inode) ||
+                               (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                                return -EROFS;
 
                        if ((current->fsuid != inode->i_uid)
@@ -58,10 +61,12 @@ int reiserfs_ioctl(struct inode *inode, 
                        if (get_user(flags, (int __user *)arg))
                                return -EFAULT;
 
-                       if (((flags ^ REISERFS_I(inode)->
-                             i_attrs) & (REISERFS_IMMUTABLE_FL |
-                                         REISERFS_APPEND_FL))
-                           && !capable(CAP_LINUX_IMMUTABLE))
+                       oldflags = REISERFS_I(inode) -> i_attrs;
+                       if (((oldflags & REISERFS_IMMUTABLE_FL) ||
+                               ((flags ^ oldflags) &
+                               (REISERFS_IMMUTABLE_FL | REISERFS_IUNLINK_FL |
+                                REISERFS_APPEND_FL))) &&
+                               !capable(CAP_LINUX_IMMUTABLE))
                                return -EPERM;
 
                        if ((flags & REISERFS_NOTAIL_FL) &&
@@ -72,6 +77,9 @@ int reiserfs_ioctl(struct inode *inode, 
                                if (result)
                                        return result;
                        }
+
+                       flags = flags & REISERFS_FL_USER_MODIFIABLE;
+                       flags |= oldflags & ~REISERFS_FL_USER_MODIFIABLE;
                        sd_attrs_to_i_attrs(flags, inode);
                        REISERFS_I(inode)->i_attrs = flags;
                        inode->i_ctime = CURRENT_TIME_SEC;
@@ -83,7 +91,8 @@ int reiserfs_ioctl(struct inode *inode, 
        case REISERFS_IOC_SETVERSION:
                if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER))
                        return -EPERM;
-               if (IS_RDONLY(inode))
+               if (IS_RDONLY(inode) ||
+                       (filp && MNT_IS_RDONLY(filp->f_vfsmnt)))
                        return -EROFS;
                if (get_user(inode->i_generation, (int __user *)arg))
                        return -EFAULT;
diff -NurpP --minimal linux-2.6.22.10/fs/reiserfs/namei.c linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/namei.c
--- linux-2.6.22.10/fs/reiserfs/namei.c 2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/namei.c      2007-08-05 20:53:13 +0200
@@ -17,6 +17,7 @@
 #include <linux/reiserfs_acl.h>
 #include <linux/reiserfs_xattr.h>
 #include <linux/quotaops.h>
+#include <linux/vs_tag.h>
 
 #define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { inc_nlink(i); if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; }
 #define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) drop_nlink(i);
@@ -360,6 +361,7 @@ static struct dentry *reiserfs_lookup(st
                        reiserfs_write_unlock(dir->i_sb);
                        return ERR_PTR(-EACCES);
                }
+               dx_propagate_tag(nd, inode);
 
                /* Propogate the priv_object flag so we know we're in the priv tree */
                if (is_reiserfs_priv_object(dir))
@@ -595,6 +597,7 @@ static int new_inode_init(struct inode *
        } else {
                inode->i_gid = current->fsgid;
        }
+       inode->i_tag = dx_current_fstag(inode->i_sb);
        DQUOT_INIT(inode);
        return 0;
 }
@@ -1541,6 +1544,7 @@ const struct inode_operations reiserfs_d
        .listxattr = reiserfs_listxattr,
        .removexattr = reiserfs_removexattr,
        .permission = reiserfs_permission,
+       .sync_flags = reiserfs_sync_flags,
 };
 
 /*
@@ -1557,6 +1561,7 @@ const struct inode_operations reiserfs_s
        .listxattr = reiserfs_listxattr,
        .removexattr = reiserfs_removexattr,
        .permission = reiserfs_permission,
+       .sync_flags = reiserfs_sync_flags,
 
 };
 
@@ -1570,5 +1575,6 @@ const struct inode_operations reiserfs_s
        .listxattr = reiserfs_listxattr,
        .removexattr = reiserfs_removexattr,
        .permission = reiserfs_permission,
+       .sync_flags = reiserfs_sync_flags,
 
 };
diff -NurpP --minimal linux-2.6.22.10/fs/reiserfs/stree.c linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/stree.c
--- linux-2.6.22.10/fs/reiserfs/stree.c 2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/stree.c      2007-08-05 20:53:13 +0200
@@ -55,6 +55,7 @@
 #include <linux/reiserfs_fs.h>
 #include <linux/buffer_head.h>
 #include <linux/quotaops.h>
+#include <linux/vs_dlimit.h>
 
 /* Does the buffer contain a disk block which is in the tree. */
 inline int B_IS_IN_TREE(const struct buffer_head *p_s_bh)
@@ -1296,6 +1297,7 @@ int reiserfs_delete_item(struct reiserfs
                       "reiserquota delete_item(): freeing %u, id=%u type=%c",
                       quota_cut_bytes, p_s_inode->i_uid, head2type(&s_ih));
 #endif
+       DLIMIT_FREE_SPACE(p_s_inode, quota_cut_bytes);
        DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes);
 
        /* Return deleted body length */
@@ -1384,6 +1386,7 @@ void reiserfs_delete_solid_item(struct r
 #endif
                                DQUOT_FREE_SPACE_NODIRTY(inode,
                                                         quota_cut_bytes);
+                               DLIMIT_FREE_SPACE(inode, quota_cut_bytes);
                        }
                        break;
                }
@@ -1737,6 +1740,7 @@ int reiserfs_cut_from_item(struct reiser
                       "reiserquota cut_from_item(): freeing %u id=%u type=%c",
                       quota_cut_bytes, p_s_inode->i_uid, '?');
 #endif
+       DLIMIT_FREE_SPACE(p_s_inode, quota_cut_bytes);
        DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes);
        return n_ret_value;
 }
@@ -1978,6 +1982,11 @@ int reiserfs_paste_into_item(struct reis
                pathrelse(p_s_search_path);
                return -EDQUOT;
        }
+       if (DLIMIT_ALLOC_SPACE(inode, n_pasted_size)) {
+               DQUOT_FREE_SPACE_NODIRTY(inode, n_pasted_size);
+               pathrelse(p_s_search_path);
+               return -ENOSPC;
+       }
        init_tb_struct(th, &s_paste_balance, th->t_super, p_s_search_path,
                       n_pasted_size);
 #ifdef DISPLACE_NEW_PACKING_LOCALITIES
@@ -2030,6 +2039,7 @@ int reiserfs_paste_into_item(struct reis
                       n_pasted_size, inode->i_uid,
                       key2type(&(p_s_key->on_disk_key)));
 #endif
+       DLIMIT_FREE_SPACE(inode, n_pasted_size);
        DQUOT_FREE_SPACE_NODIRTY(inode, n_pasted_size);
        return retval;
 }
@@ -2067,6 +2077,11 @@ int reiserfs_insert_item(struct reiserfs
                        pathrelse(p_s_path);
                        return -EDQUOT;
                }
+               if (DLIMIT_ALLOC_SPACE(inode, quota_bytes)) {
+                       DQUOT_FREE_SPACE_NODIRTY(inode, quota_bytes);
+                       pathrelse(p_s_path);
+                       return -ENOSPC;
+               }
        }
        init_tb_struct(th, &s_ins_balance, th->t_super, p_s_path,
                       IH_SIZE + ih_item_len(p_s_ih));
@@ -2114,7 +2129,9 @@ int reiserfs_insert_item(struct reiserfs
                       "reiserquota insert_item(): freeing %u id=%u type=%c",
                       quota_bytes, inode->i_uid, head2type(p_s_ih));
 #endif
-       if (inode)
+       if (inode) {
+               DLIMIT_FREE_SPACE(inode, quota_bytes);
                DQUOT_FREE_SPACE_NODIRTY(inode, quota_bytes);
+       }
        return retval;
 }
diff -NurpP --minimal linux-2.6.22.10/fs/reiserfs/super.c linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/super.c
--- linux-2.6.22.10/fs/reiserfs/super.c 2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/super.c      2007-08-05 20:53:13 +0200
@@ -882,6 +882,14 @@ static int reiserfs_parse_options(struct
                {"user_xattr",.setmask = 1 << REISERFS_UNSUPPORTED_OPT},
                {"nouser_xattr",.clrmask = 1 << REISERFS_UNSUPPORTED_OPT},
 #endif
+#ifndef CONFIG_TAGGING_NONE
+               {"tagxid",.setmask = 1 << REISERFS_TAGGED},
+               {"tag",.setmask = 1 << REISERFS_TAGGED},
+               {"notag",.clrmask = 1 << REISERFS_TAGGED},
+#endif
+#ifdef CONFIG_PROPAGATE
+               {"tag",.arg_required = 'T',.values = NULL},
+#endif
 #ifdef CONFIG_REISERFS_FS_POSIX_ACL
                {"acl",.setmask = 1 << REISERFS_POSIXACL},
                {"noacl",.clrmask = 1 << REISERFS_POSIXACL},
@@ -1143,6 +1151,12 @@ static int reiserfs_remount(struct super
                return -EINVAL;
        }
 
+       if ((mount_options & (1 << REISERFS_TAGGED)) &&
+               !(s->s_flags & MS_TAGGED)) {
+               reiserfs_warning(s, "reiserfs: tagging not permitted on remount.");
+               return -EINVAL;
+       }
+
        handle_attrs(s);
 
        /* Add options that are safe here */
@@ -1591,6 +1605,10 @@ static int reiserfs_fill_super(struct su
                goto error;
        }
 
+       /* map mount option tagxid */
+       if (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_TAGGED))
+               s->s_flags |= MS_TAGGED;
+
        rs = SB_DISK_SUPER_BLOCK(s);
        /* Let's do basic sanity check to verify that underlying device is not
           smaller than the filesystem. If the check fails then abort and scream,
diff -NurpP --minimal linux-2.6.22.10/fs/reiserfs/xattr.c linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/xattr.c
--- linux-2.6.22.10/fs/reiserfs/xattr.c 2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/reiserfs/xattr.c      2007-08-05 20:53:13 +0200
@@ -35,6 +35,7 @@
 #include <linux/namei.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
+#include <linux/mount.h>
 #include <linux/file.h>
 #include <linux/pagemap.h>
 #include <linux/xattr.h>
@@ -775,7 +776,7 @@ int reiserfs_delete_xattrs(struct inode 
        if (dir->d_inode->i_nlink <= 2) {
                root = get_xa_root(inode->i_sb, XATTR_REPLACE);
                reiserfs_write_lock_xattrs(inode->i_sb);
-               err = vfs_rmdir(root->d_inode, dir);
+               err = vfs_rmdir(root->d_inode, dir, NULL);
                reiserfs_write_unlock_xattrs(inode->i_sb);
                dput(root);
        } else {
diff -NurpP --minimal linux-2.6.22.10/fs/stat.c linux-2.6.22.10-vs2.3.0.29/fs/stat.c
--- linux-2.6.22.10/fs/stat.c   2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/stat.c        2007-08-05 20:53:13 +0200
@@ -26,6 +26,7 @@ void generic_fillattr(struct inode *inod
        stat->nlink = inode->i_nlink;
        stat->uid = inode->i_uid;
        stat->gid = inode->i_gid;
+       stat->tag = inode->i_tag;
        stat->rdev = inode->i_rdev;
        stat->atime = inode->i_atime;
        stat->mtime = inode->i_mtime;
diff -NurpP --minimal linux-2.6.22.10/fs/super.c linux-2.6.22.10-vs2.3.0.29/fs/super.c
--- linux-2.6.22.10/fs/super.c  2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/super.c       2007-10-20 00:00:59 +0200
@@ -37,6 +37,9 @@
 #include <linux/idr.h>
 #include <linux/kobject.h>
 #include <linux/mutex.h>
+#include <linux/devpts_fs.h>
+#include <linux/proc_fs.h>
+#include <linux/vs_context.h>
 #include <asm/uaccess.h>
 
 
@@ -860,12 +863,18 @@ struct vfsmount *
 vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void *data)
 {
        struct vfsmount *mnt;
+       struct super_block *sb;
        char *secdata = NULL;
        int error;
 
        if (!type)
                return ERR_PTR(-ENODEV);
 
+       error = -EPERM;
+       if ((type->fs_flags & FS_BINARY_MOUNTDATA) &&
+               !vx_capable(CAP_SYS_ADMIN, VXC_BINARY_MOUNT))
+               goto out;
+
        error = -ENOMEM;
        mnt = alloc_vfsmnt(name);
        if (!mnt)
@@ -885,7 +894,14 @@ vfs_kern_mount(struct file_system_type *
        if (error < 0)
                goto out_free_secdata;
 
-       error = security_sb_kern_mount(mnt->mnt_sb, secdata);
+       sb = mnt->mnt_sb;
+       error = -EPERM;
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_BINARY_MOUNT) && !sb->s_bdev &&
+               (sb->s_magic != PROC_SUPER_MAGIC) &&
+               (sb->s_magic != DEVPTS_SUPER_MAGIC))
+               goto out_sb;
+
+       error = security_sb_kern_mount(sb, secdata);
        if (error)
                goto out_sb;
 
diff -NurpP --minimal linux-2.6.22.10/fs/sysfs/mount.c linux-2.6.22.10-vs2.3.0.29/fs/sysfs/mount.c
--- linux-2.6.22.10/fs/sysfs/mount.c    2007-07-09 13:19:28 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/sysfs/mount.c 2007-08-05 20:53:13 +0200
@@ -12,8 +12,6 @@
 
 #include "sysfs.h"
 
-/* Random magic number */
-#define SYSFS_MAGIC 0x62656572
 
 struct vfsmount *sysfs_mount;
 struct super_block * sysfs_sb = NULL;
@@ -48,7 +46,7 @@ static int sysfs_fill_super(struct super
 
        sb->s_blocksize = PAGE_CACHE_SIZE;
        sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
-       sb->s_magic = SYSFS_MAGIC;
+       sb->s_magic = SYSFS_SUPER_MAGIC;
        sb->s_op = &sysfs_ops;
        sb->s_time_gran = 1;
        sysfs_sb = sb;
diff -NurpP --minimal linux-2.6.22.10/fs/utimes.c linux-2.6.22.10-vs2.3.0.29/fs/utimes.c
--- linux-2.6.22.10/fs/utimes.c 2007-07-09 13:19:29 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/utimes.c      2007-08-05 20:53:13 +0200
@@ -6,6 +6,8 @@
 #include <linux/sched.h>
 #include <linux/stat.h>
 #include <linux/utime.h>
+#include <linux/mount.h>
+#include <linux/vs_cowbl.h>
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 
@@ -70,11 +72,13 @@ long do_utimes(int dfd, char __user *fil
                if (error)
                        goto out;
 
+               error = cow_check_and_break(&nd);
+               if (error)
+                       goto dput_and_out;
                dentry = nd.dentry;
        }
 
        inode = dentry->d_inode;
-
        error = -EROFS;
        if (IS_RDONLY(inode))
                goto dput_and_out;
diff -NurpP --minimal linux-2.6.22.10/fs/xattr.c linux-2.6.22.10-vs2.3.0.29/fs/xattr.c
--- linux-2.6.22.10/fs/xattr.c  2007-07-09 13:19:29 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xattr.c       2007-08-05 20:53:13 +0200
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/fsnotify.h>
 #include <linux/audit.h>
+#include <linux/mount.h>
 #include <asm/uaccess.h>
 
 
@@ -194,7 +195,7 @@ EXPORT_SYMBOL_GPL(vfs_removexattr);
  */
 static long
 setxattr(struct dentry *d, char __user *name, void __user *value,
-        size_t size, int flags)
+        size_t size, int flags, struct vfsmount *mnt)
 {
        int error;
        void *kvalue = NULL;
@@ -221,6 +222,9 @@ setxattr(struct dentry *d, char __user *
                }
        }
 
+       if (MNT_IS_RDONLY(mnt))
+               return -EROFS;
+
        error = vfs_setxattr(d, kname, kvalue, size, flags);
        kfree(kvalue);
        return error;
@@ -236,7 +240,7 @@ sys_setxattr(char __user *path, char __u
        error = user_path_walk(path, &nd);
        if (error)
                return error;
-       error = setxattr(nd.dentry, name, value, size, flags);
+       error = setxattr(nd.dentry, name, value, size, flags, nd.mnt);
        path_release(&nd);
        return error;
 }
@@ -251,7 +255,7 @@ sys_lsetxattr(char __user *path, char __
        error = user_path_walk_link(path, &nd);
        if (error)
                return error;
-       error = setxattr(nd.dentry, name, value, size, flags);
+       error = setxattr(nd.dentry, name, value, size, flags, nd.mnt);
        path_release(&nd);
        return error;
 }
@@ -269,7 +273,7 @@ sys_fsetxattr(int fd, char __user *name,
                return error;
        dentry = f->f_path.dentry;
        audit_inode(NULL, dentry->d_inode);
-       error = setxattr(dentry, name, value, size, flags);
+       error = setxattr(dentry, name, value, size, flags, f->f_vfsmnt);
        fput(f);
        return error;
 }
@@ -433,7 +437,7 @@ sys_flistxattr(int fd, char __user *list
  * Extended attribute REMOVE operations
  */
 static long
-removexattr(struct dentry *d, char __user *name)
+removexattr(struct dentry *d, char __user *name, struct vfsmount *mnt)
 {
        int error;
        char kname[XATTR_NAME_MAX + 1];
@@ -444,6 +448,9 @@ removexattr(struct dentry *d, char __use
        if (error < 0)
                return error;
 
+       if (MNT_IS_RDONLY(mnt))
+               return -EROFS;
+
        return vfs_removexattr(d, kname);
 }
 
@@ -456,7 +463,7 @@ sys_removexattr(char __user *path, char 
        error = user_path_walk(path, &nd);
        if (error)
                return error;
-       error = removexattr(nd.dentry, name);
+       error = removexattr(nd.dentry, name, nd.mnt);
        path_release(&nd);
        return error;
 }
@@ -470,7 +477,7 @@ sys_lremovexattr(char __user *path, char
        error = user_path_walk_link(path, &nd);
        if (error)
                return error;
-       error = removexattr(nd.dentry, name);
+       error = removexattr(nd.dentry, name, nd.mnt);
        path_release(&nd);
        return error;
 }
@@ -487,7 +494,7 @@ sys_fremovexattr(int fd, char __user *na
                return error;
        dentry = f->f_path.dentry;
        audit_inode(NULL, dentry->d_inode);
-       error = removexattr(dentry, name);
+       error = removexattr(dentry, name, f->f_vfsmnt);
        fput(f);
        return error;
 }
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/linux-2.6/xfs_ioctl.c linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_ioctl.c
--- linux-2.6.22.10/fs/xfs/linux-2.6/xfs_ioctl.c        2007-05-02 19:25:22 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_ioctl.c     2007-08-05 20:53:13 +0200
@@ -1128,6 +1128,10 @@ xfs_di2lxflags(
 
        if (di_flags & XFS_DIFLAG_IMMUTABLE)
                flags |= FS_IMMUTABLE_FL;
+       if (di_flags & XFS_DIFLAG_IUNLINK)
+               flags |= FS_IUNLINK_FL;
+       if (di_flags & XFS_DIFLAG_BARRIER)
+               flags |= FS_BARRIER_FL;
        if (di_flags & XFS_DIFLAG_APPEND)
                flags |= FS_APPEND_FL;
        if (di_flags & XFS_DIFLAG_SYNC)
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/linux-2.6/xfs_iops.c linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_iops.c
--- linux-2.6.22.10/fs/xfs/linux-2.6/xfs_iops.c 2007-05-02 19:25:22 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_iops.c      2007-08-05 20:53:13 +0200
@@ -51,6 +51,7 @@
 #include <linux/xattr.h>
 #include <linux/namei.h>
 #include <linux/security.h>
+#include <linux/vs_tag.h>
 
 /*
  * Get a XFS inode from a given vnode.
@@ -400,6 +401,7 @@ xfs_vn_lookup(
                d_add(dentry, NULL);
                return NULL;
        }
+       dx_propagate_tag(nd, vn_to_inode(cvp));
 
        return d_splice_alias(vn_to_inode(cvp), dentry);
 }
@@ -657,6 +659,10 @@ xfs_vn_setattr(
        int             flags = 0;
        int             error;
 
+       error = inode_change_ok(inode, attr);
+       if (error)
+               return error;
+
        if (ia_valid & ATTR_UID) {
                vattr.va_mask |= XFS_AT_UID;
                vattr.va_uid = attr->ia_uid;
@@ -665,6 +671,10 @@ xfs_vn_setattr(
                vattr.va_mask |= XFS_AT_GID;
                vattr.va_gid = attr->ia_gid;
        }
+       if ((ia_valid & ATTR_TAG) && IS_TAGGED(inode)) {
+               vattr.va_mask |= XFS_AT_TAG;
+               vattr.va_tag = attr->ia_tag;
+       }
        if (ia_valid & ATTR_SIZE) {
                vattr.va_mask |= XFS_AT_SIZE;
                vattr.va_size = attr->ia_size;
@@ -710,6 +720,42 @@ xfs_vn_truncate(
 }
 
 STATIC int
+xfs_vn_sync_flags(struct inode *inode)
+{
+       unsigned int oldflags, newflags;
+       int             flags = 0;
+       int             error;
+       bhv_vattr_t     vattr;
+       bhv_vnode_t     *vp = vn_from_inode(inode);
+
+       memset(&vattr, 0, sizeof vattr);
+
+       vattr.va_mask = XFS_AT_XFLAGS;
+       error = bhv_vop_getattr(vp, &vattr, 0, NULL);
+
+       if (error)
+               return error;
+       oldflags = vattr.va_xflags;
+       newflags = oldflags & ~(XFS_XFLAG_IMMUTABLE |
+               XFS_XFLAG_IUNLINK | XFS_XFLAG_BARRIER);
+
+       if (IS_IMMUTABLE(inode))
+               newflags |= XFS_XFLAG_IMMUTABLE;
+       if (IS_IUNLINK(inode))
+               newflags |= XFS_XFLAG_IUNLINK;
+       if (IS_BARRIER(inode))
+               newflags |= XFS_XFLAG_BARRIER;
+
+       if (oldflags ^ newflags) {
+               vattr.va_xflags = newflags;
+               vattr.va_mask |= XFS_AT_XFLAGS;
+               error = bhv_vop_setattr(vp, &vattr, flags, NULL);
+       }
+       vn_revalidate(vp);
+       return error;
+}
+
+STATIC int
 xfs_vn_setxattr(
        struct dentry   *dentry,
        const char      *name,
@@ -822,6 +868,7 @@ const struct inode_operations xfs_inode_
        .getxattr               = xfs_vn_getxattr,
        .listxattr              = xfs_vn_listxattr,
        .removexattr            = xfs_vn_removexattr,
+       .sync_flags             = xfs_vn_sync_flags,
 };
 
 const struct inode_operations xfs_dir_inode_operations = {
@@ -841,6 +888,7 @@ const struct inode_operations xfs_dir_in
        .getxattr               = xfs_vn_getxattr,
        .listxattr              = xfs_vn_listxattr,
        .removexattr            = xfs_vn_removexattr,
+       .sync_flags             = xfs_vn_sync_flags,
 };
 
 const struct inode_operations xfs_symlink_inode_operations = {
@@ -854,4 +902,5 @@ const struct inode_operations xfs_symlin
        .getxattr               = xfs_vn_getxattr,
        .listxattr              = xfs_vn_listxattr,
        .removexattr            = xfs_vn_removexattr,
+       .sync_flags             = xfs_vn_sync_flags,
 };
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/linux-2.6/xfs_linux.h linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_linux.h
--- linux-2.6.22.10/fs/xfs/linux-2.6/xfs_linux.h        2007-05-02 19:25:22 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_linux.h     2007-08-05 20:53:13 +0200
@@ -129,6 +129,7 @@
 #define current_pid()          (current->pid)
 #define current_fsuid(cred)    (current->fsuid)
 #define current_fsgid(cred)    (current->fsgid)
+#define current_fstag(cred,vp) (dx_current_fstag(vn_to_inode(vp)->i_sb))
 #define current_test_flags(f)  (current->flags & (f))
 #define current_set_flags_nested(sp, f)                \
                (*(sp) = current->flags, current->flags |= (f))
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/linux-2.6/xfs_super.c linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_super.c
--- linux-2.6.22.10/fs/xfs/linux-2.6/xfs_super.c        2007-07-09 13:19:29 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_super.c     2007-08-05 20:53:13 +0200
@@ -157,6 +157,7 @@ xfs_revalidate_inode(
        inode->i_nlink  = ip->i_d.di_nlink;
        inode->i_uid    = ip->i_d.di_uid;
        inode->i_gid    = ip->i_d.di_gid;
+       inode->i_tag    = ip->i_d.di_tag;
 
        switch (inode->i_mode & S_IFMT) {
        case S_IFBLK:
@@ -184,6 +185,14 @@ xfs_revalidate_inode(
                inode->i_flags |= S_IMMUTABLE;
        else
                inode->i_flags &= ~S_IMMUTABLE;
+       if (ip->i_d.di_flags & XFS_DIFLAG_IUNLINK)
+               inode->i_flags |= S_IUNLINK;
+       else
+               inode->i_flags &= ~S_IUNLINK;
+       if (ip->i_d.di_flags & XFS_DIFLAG_BARRIER)
+               inode->i_flags |= S_BARRIER;
+       else
+               inode->i_flags &= ~S_BARRIER;
        if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
                inode->i_flags |= S_APPEND;
        else
@@ -712,6 +721,12 @@ xfs_fs_remount(
        int                     error;
 
        error = bhv_vfs_parseargs(vfsp, options, args, 1);
+       if ((args->flags2 & XFSMNT2_TAGGED) &&
+               !(sb->s_flags & MS_TAGGED)) {
+               printk("XFS: %s: tagging not permitted on remount.\n",
+                       sb->s_id);
+               error = EINVAL;
+       }
        if (!error)
                error = bhv_vfs_mntupdate(vfsp, flags, args);
        kmem_free(args, sizeof(*args));
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/linux-2.6/xfs_vnode.c linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_vnode.c
--- linux-2.6.22.10/fs/xfs/linux-2.6/xfs_vnode.c        2007-05-02 19:25:22 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_vnode.c     2007-08-05 20:53:13 +0200
@@ -119,6 +119,7 @@ vn_revalidate_core(
        inode->i_nlink      = vap->va_nlink;
        inode->i_uid        = vap->va_uid;
        inode->i_gid        = vap->va_gid;
+       inode->i_tag        = vap->va_tag;
        inode->i_blocks     = vap->va_nblocks;
        inode->i_mtime      = vap->va_mtime;
        inode->i_ctime      = vap->va_ctime;
@@ -126,6 +127,14 @@ vn_revalidate_core(
                inode->i_flags |= S_IMMUTABLE;
        else
                inode->i_flags &= ~S_IMMUTABLE;
+       if (vap->va_xflags & XFS_XFLAG_IUNLINK)
+               inode->i_flags |= S_IUNLINK;
+       else
+               inode->i_flags &= ~S_IUNLINK;
+       if (vap->va_xflags & XFS_XFLAG_BARRIER)
+               inode->i_flags |= S_BARRIER;
+       else
+               inode->i_flags &= ~S_BARRIER;
        if (vap->va_xflags & XFS_XFLAG_APPEND)
                inode->i_flags |= S_APPEND;
        else
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/linux-2.6/xfs_vnode.h linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_vnode.h
--- linux-2.6.22.10/fs/xfs/linux-2.6/xfs_vnode.h        2007-07-09 13:19:29 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/linux-2.6/xfs_vnode.h     2007-08-05 20:53:13 +0200
@@ -350,6 +350,7 @@ typedef struct bhv_vattr {
        xfs_nlink_t     va_nlink;       /* number of references to file */
        uid_t           va_uid;         /* owner user id */
        gid_t           va_gid;         /* owner group id */
+       tag_t           va_tag;         /* owner group id */
        xfs_ino_t       va_nodeid;      /* file id */
        xfs_off_t       va_size;        /* file size in bytes */
        u_long          va_blocksize;   /* blocksize preferred for i/o */
@@ -398,13 +399,15 @@ typedef struct bhv_vattr {
 #define XFS_AT_PROJID          0x04000000
 #define XFS_AT_SIZE_NOPERM     0x08000000
 #define XFS_AT_GENCOUNT                0x10000000
+#define XFS_AT_TAG             0x20000000
 
 #define XFS_AT_ALL     (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
                XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
                XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\
                XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|XFS_AT_MAC|\
                XFS_AT_ACL|XFS_AT_CAP|XFS_AT_INF|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|\
-               XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT)
+               XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT\
+               XFS_AT_TAG)
 
 #define XFS_AT_STAT    (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
                XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/quota/xfs_qm_syscalls.c linux-2.6.22.10-vs2.3.0.29/fs/xfs/quota/xfs_qm_syscalls.c
--- linux-2.6.22.10/fs/xfs/quota/xfs_qm_syscalls.c      2007-07-09 13:19:29 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/quota/xfs_qm_syscalls.c   2007-08-05 20:53:13 +0200
@@ -17,6 +17,7 @@
  */
 
 #include <linux/capability.h>
+#include <linux/vs_context.h>
 
 #include "xfs.h"
 #include "xfs_fs.h"
@@ -211,7 +212,7 @@ xfs_qm_scall_quotaoff(
        xfs_qoff_logitem_t      *qoffstart;
        int                     nculprits;
 
-       if (!force && !capable(CAP_SYS_ADMIN))
+       if (!force && !vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
                return XFS_ERROR(EPERM);
        /*
         * No file system can have quotas enabled on disk but not in core.
@@ -380,7 +381,7 @@ xfs_qm_scall_trunc_qfiles(
        int             error;
        xfs_inode_t     *qip;
 
-       if (!capable(CAP_SYS_ADMIN))
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
                return XFS_ERROR(EPERM);
        error = 0;
        if (!XFS_SB_VERSION_HASQUOTA(&mp->m_sb) || flags == 0) {
@@ -425,7 +426,7 @@ xfs_qm_scall_quotaon(
        uint            accflags;
        __int64_t       sbflags;
 
-       if (!capable(CAP_SYS_ADMIN))
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
                return XFS_ERROR(EPERM);
 
        flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
@@ -594,7 +595,7 @@ xfs_qm_scall_setqlim(
        int                     error;
        xfs_qcnt_t              hard, soft;
 
-       if (!capable(CAP_SYS_ADMIN))
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_QUOTA_CTL))
                return XFS_ERROR(EPERM);
 
        if ((newlim->d_fieldmask &
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/xfs_clnt.h linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_clnt.h
--- linux-2.6.22.10/fs/xfs/xfs_clnt.h   2006-06-18 04:54:50 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_clnt.h        2007-08-05 20:53:13 +0200
@@ -99,5 +99,7 @@ struct xfs_mount_args {
  */
 #define XFSMNT2_COMPAT_IOSIZE  0x00000001      /* don't report large preferred
                                                 * I/O size in stat(2) */
+#define XFSMNT2_TAGGED         0x80000000      /* context tagging */
+
 
 #endif /* __XFS_CLNT_H__ */
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/xfs_dinode.h linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_dinode.h
--- linux-2.6.22.10/fs/xfs/xfs_dinode.h 2006-09-20 16:58:40 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_dinode.h      2007-08-05 20:53:13 +0200
@@ -53,7 +53,8 @@ typedef struct xfs_dinode_core
        __uint32_t      di_gid;         /* owner's group id */
        __uint32_t      di_nlink;       /* number of links to file */
        __uint16_t      di_projid;      /* owner's project id */
-       __uint8_t       di_pad[8];      /* unused, zeroed space */
+       __uint16_t      di_tag;         /* context tagging */
+       __uint8_t       di_pad[6];      /* unused, zeroed space */
        __uint16_t      di_flushiter;   /* incremented on flush */
        xfs_timestamp_t di_atime;       /* time last accessed */
        xfs_timestamp_t di_mtime;       /* time last modified */
@@ -257,6 +258,9 @@ typedef enum xfs_dinode_fmt
 #define XFS_DIFLAG_EXTSIZE_BIT      11 /* inode extent size allocator hint */
 #define XFS_DIFLAG_EXTSZINHERIT_BIT 12 /* inherit inode extent size */
 #define XFS_DIFLAG_NODEFRAG_BIT     13 /* do not reorganize/defragment */
+#define XFS_DIFLAG_BARRIER_BIT 14      /* chroot() barrier */
+#define XFS_DIFLAG_IUNLINK_BIT 15      /* immutable unlink */
+
 #define XFS_DIFLAG_REALTIME      (1 << XFS_DIFLAG_REALTIME_BIT)
 #define XFS_DIFLAG_PREALLOC      (1 << XFS_DIFLAG_PREALLOC_BIT)
 #define XFS_DIFLAG_NEWRTBM       (1 << XFS_DIFLAG_NEWRTBM_BIT)
@@ -271,12 +275,15 @@ typedef enum xfs_dinode_fmt
 #define XFS_DIFLAG_EXTSIZE       (1 << XFS_DIFLAG_EXTSIZE_BIT)
 #define XFS_DIFLAG_EXTSZINHERIT  (1 << XFS_DIFLAG_EXTSZINHERIT_BIT)
 #define XFS_DIFLAG_NODEFRAG      (1 << XFS_DIFLAG_NODEFRAG_BIT)
+#define XFS_DIFLAG_BARRIER      (1 << XFS_DIFLAG_BARRIER_BIT)
+#define XFS_DIFLAG_IUNLINK      (1 << XFS_DIFLAG_IUNLINK_BIT)
 
 #define XFS_DIFLAG_ANY \
        (XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \
         XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \
         XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \
         XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS | XFS_DIFLAG_EXTSIZE | \
-        XFS_DIFLAG_EXTSZINHERIT | XFS_DIFLAG_NODEFRAG)
+        XFS_DIFLAG_EXTSZINHERIT | XFS_DIFLAG_NODEFRAG | XFS_DIFLAG_BARRIER | \
+        XFS_DIFLAG_IUNLINK)
 
 #endif /* __XFS_DINODE_H__ */
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/xfs_fs.h linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_fs.h
--- linux-2.6.22.10/fs/xfs/xfs_fs.h     2006-11-30 21:19:29 +0100
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_fs.h  2007-08-05 20:53:13 +0200
@@ -66,6 +66,8 @@ struct fsxattr {
 #define XFS_XFLAG_EXTSIZE      0x00000800      /* extent size allocator hint */
 #define XFS_XFLAG_EXTSZINHERIT 0x00001000      /* inherit inode extent size */
 #define XFS_XFLAG_NODEFRAG     0x00002000      /* do not defragment */
+#define XFS_XFLAG_BARRIER      0x00004000      /* chroot() barrier */
+#define XFS_XFLAG_IUNLINK      0x00008000      /* immutable unlink */
 #define XFS_XFLAG_HASATTR      0x80000000      /* no DIFLAG for this   */
 
 /*
@@ -294,7 +296,8 @@ typedef struct xfs_bstat {
        __s32           bs_extents;     /* number of extents            */
        __u32           bs_gen;         /* generation count             */
        __u16           bs_projid;      /* project id                   */
-       unsigned char   bs_pad[14];     /* pad space, unused            */
+       __u16           bs_tag;         /* context tagging              */
+       unsigned char   bs_pad[12];     /* pad space, unused            */
        __u32           bs_dmevmask;    /* DMIG event mask              */
        __u16           bs_dmstate;     /* DMIG state info              */
        __u16           bs_aextents;    /* attribute number of extents  */
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/xfs_inode.c linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_inode.c
--- linux-2.6.22.10/fs/xfs/xfs_inode.c  2007-07-09 13:19:34 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_inode.c       2007-08-05 20:53:13 +0200
@@ -49,6 +49,7 @@
 #include "xfs_quota.h"
 #include "xfs_acl.h"
 
+#include <linux/vs_tag.h>
 
 kmem_zone_t *xfs_ifork_zone;
 kmem_zone_t *xfs_inode_zone;
@@ -736,20 +737,35 @@ xfs_xlate_dinode_core(
        xfs_dinode_core_t       *buf_core = (xfs_dinode_core_t *)buf;
        xfs_dinode_core_t       *mem_core = (xfs_dinode_core_t *)dip;
        xfs_arch_t              arch = ARCH_CONVERT;
+       uint32_t                uid = 0, gid = 0;
+       uint16_t                tag = 0;
 
        ASSERT(dir);
 
+       if (dir < 0) {
+               tag = mem_core->di_tag;
+               /* FIXME: supposed to use superblock flag */
+               uid = TAGINO_UID(1, mem_core->di_uid, tag);
+               gid = TAGINO_GID(1, mem_core->di_gid, tag);
+               tag = TAGINO_TAG(1, tag);
+       }
+
        INT_XLATE(buf_core->di_magic, mem_core->di_magic, dir, arch);
        INT_XLATE(buf_core->di_mode, mem_core->di_mode, dir, arch);
        INT_XLATE(buf_core->di_version, mem_core->di_version, dir, arch);
        INT_XLATE(buf_core->di_format, mem_core->di_format, dir, arch);
        INT_XLATE(buf_core->di_onlink, mem_core->di_onlink, dir, arch);
-       INT_XLATE(buf_core->di_uid, mem_core->di_uid, dir, arch);
-       INT_XLATE(buf_core->di_gid, mem_core->di_gid, dir, arch);
+       INT_XLATE(buf_core->di_uid, uid, dir, arch);
+       INT_XLATE(buf_core->di_gid, gid, dir, arch);
+       INT_XLATE(buf_core->di_tag, tag, dir, arch);
        INT_XLATE(buf_core->di_nlink, mem_core->di_nlink, dir, arch);
        INT_XLATE(buf_core->di_projid, mem_core->di_projid, dir, arch);
 
        if (dir > 0) {
+               /* FIXME: supposed to use superblock flag */
+               mem_core->di_uid = INOTAG_UID(1, uid, gid);
+               mem_core->di_gid = INOTAG_GID(1, uid, gid);
+               mem_core->di_tag = INOTAG_TAG(1, uid, gid, tag);
                memcpy(mem_core->di_pad, buf_core->di_pad,
                        sizeof(buf_core->di_pad));
        } else {
@@ -797,6 +813,10 @@ _xfs_dic2xflags(
                        flags |= XFS_XFLAG_PREALLOC;
                if (di_flags & XFS_DIFLAG_IMMUTABLE)
                        flags |= XFS_XFLAG_IMMUTABLE;
+               if (di_flags & XFS_DIFLAG_IUNLINK)
+                       flags |= XFS_XFLAG_IUNLINK;
+               if (di_flags & XFS_DIFLAG_BARRIER)
+                       flags |= XFS_XFLAG_BARRIER;
                if (di_flags & XFS_DIFLAG_APPEND)
                        flags |= XFS_XFLAG_APPEND;
                if (di_flags & XFS_DIFLAG_SYNC)
@@ -1129,6 +1149,7 @@ xfs_ialloc(
        ASSERT(ip->i_d.di_nlink == nlink);
        ip->i_d.di_uid = current_fsuid(cr);
        ip->i_d.di_gid = current_fsgid(cr);
+       ip->i_d.di_tag = current_fstag(cr, vp);
        ip->i_d.di_projid = prid;
        memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
 
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/xfs_itable.c linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_itable.c
--- linux-2.6.22.10/fs/xfs/xfs_itable.c 2007-07-09 13:19:34 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_itable.c      2007-08-05 20:53:13 +0200
@@ -89,6 +89,7 @@ xfs_bulkstat_one_iget(
        buf->bs_mode = dic->di_mode;
        buf->bs_uid = dic->di_uid;
        buf->bs_gid = dic->di_gid;
+       buf->bs_tag = dic->di_tag;
        buf->bs_size = dic->di_size;
        vn_atime_to_bstime(vp, &buf->bs_atime);
        buf->bs_mtime.tv_sec = dic->di_mtime.t_sec;
@@ -163,6 +164,7 @@ xfs_bulkstat_one_dinode(
        buf->bs_mode = INT_GET(dic->di_mode, ARCH_CONVERT);
        buf->bs_uid = INT_GET(dic->di_uid, ARCH_CONVERT);
        buf->bs_gid = INT_GET(dic->di_gid, ARCH_CONVERT);
+       buf->bs_tag = INT_GET(dic->di_tag, ARCH_CONVERT);
        buf->bs_size = INT_GET(dic->di_size, ARCH_CONVERT);
        buf->bs_atime.tv_sec = INT_GET(dic->di_atime.t_sec, ARCH_CONVERT);
        buf->bs_atime.tv_nsec = INT_GET(dic->di_atime.t_nsec, ARCH_CONVERT);
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/xfs_mount.h linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_mount.h
--- linux-2.6.22.10/fs/xfs/xfs_mount.h  2007-05-02 19:25:23 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_mount.h       2007-08-05 20:53:13 +0200
@@ -464,6 +464,7 @@ typedef struct xfs_mount {
 #define XFS_MOUNT_NO_PERCPU_SB (1ULL << 23)    /* don't use per-cpu superblock
                                                   counters */
 
+#define XFS_MOUNT_TAGGED       (1ULL << 31)    /* context tagging */
 
 /*
  * Default minimum read and write sizes.
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/xfs_vfsops.c linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_vfsops.c
--- linux-2.6.22.10/fs/xfs/xfs_vfsops.c 2007-07-09 13:19:34 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_vfsops.c      2007-08-05 20:53:13 +0200
@@ -300,6 +300,8 @@ xfs_start_flags(
 
        if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE)
                mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
+       if (ap->flags2 & XFSMNT2_TAGGED)
+               mp->m_flags |= XFS_MOUNT_TAGGED;
 
        /*
         * no recovery flag requires a read-only mount
@@ -394,6 +396,8 @@ xfs_finish_flags(
                        return XFS_ERROR(EINVAL);
        }
 
+       if (ap->flags2 & XFSMNT2_TAGGED)
+               vfs->vfs_super->s_flags |= MS_TAGGED;
        return 0;
 }
 
@@ -1645,6 +1649,9 @@ xfs_vget(
                                         * in stat(). */
 #define MNTOPT_ATTR2   "attr2"         /* do use attr2 attribute format */
 #define MNTOPT_NOATTR2 "noattr2"       /* do not use attr2 attribute format */
+#define MNTOPT_TAGXID  "tagxid"        /* context tagging for inodes */
+#define MNTOPT_TAGGED  "tag"           /* context tagging for inodes */
+#define MNTOPT_NOTAGTAG        "notag"         /* do not use context tagging */
 
 STATIC unsigned long
 suffix_strtoul(char *s, char **endp, unsigned int base)
@@ -1831,6 +1838,19 @@ xfs_parseargs(
                        args->flags |= XFSMNT_ATTR2;
                } else if (!strcmp(this_char, MNTOPT_NOATTR2)) {
                        args->flags &= ~XFSMNT_ATTR2;
+#ifndef CONFIG_TAGGING_NONE
+               } else if (!strcmp(this_char, MNTOPT_TAGGED)) {
+                       args->flags2 |= XFSMNT2_TAGGED;
+               } else if (!strcmp(this_char, MNTOPT_NOTAGTAG)) {
+                       args->flags2 &= ~XFSMNT2_TAGGED;
+               } else if (!strcmp(this_char, MNTOPT_TAGXID)) {
+                       args->flags2 |= XFSMNT2_TAGGED;
+#endif
+#ifdef CONFIG_PROPAGATE
+               } else if (!strcmp(this_char, MNTOPT_TAGGED)) {
+                       /* use value */
+                       args->flags2 |= XFSMNT2_TAGGED;
+#endif
                } else if (!strcmp(this_char, "osyncisdsync")) {
                        /* no-op, this is now the default */
                        cmn_err(CE_WARN,
diff -NurpP --minimal linux-2.6.22.10/fs/xfs/xfs_vnodeops.c linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_vnodeops.c
--- linux-2.6.22.10/fs/xfs/xfs_vnodeops.c       2007-07-09 13:19:34 +0200
+++ linux-2.6.22.10-vs2.3.0.29/fs/xfs/xfs_vnodeops.c    2007-08-05 20:53:13 +0200
@@ -159,6 +159,7 @@ xfs_getattr(
        vap->va_mode = ip->i_d.di_mode;
        vap->va_uid = ip->i_d.di_uid;
        vap->va_gid = ip->i_d.di_gid;
+       vap->va_tag = ip->i_d.di_tag;
        vap->va_projid = ip->i_d.di_projid;
 
        /*
@@ -259,6 +260,7 @@ xfs_setattr(
        uint                    commit_flags=0;
        uid_t                   uid=0, iuid=0;
        gid_t                   gid=0, igid=0;
+       tag_t                   tag=0, itag=0;
        int                     timeflags = 0;
        bhv_vnode_t             *vp;
        xfs_prid_t              projid=0, iprojid=0;
@@ -315,6 +317,7 @@ xfs_setattr(
            (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID))) {
                uint    qflags = 0;
 
+               /* TODO: handle tagging? */
                if ((mask & XFS_AT_UID) && XFS_IS_UQUOTA_ON(mp)) {
                        uid = vap->va_uid;
                        qflags |= XFS_QMOPT_UQUOTA;
@@ -394,6 +397,8 @@ xfs_setattr(
        if (mask &
            (XFS_AT_MODE|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_UID|
             XFS_AT_GID|XFS_AT_PROJID)) {
+               /* TODO: handle tagging? */
+
                /*
                 * CAP_FOWNER overrides the following restrictions:
                 *
@@ -442,7 +447,7 @@ xfs_setattr(
         * and can change the group id only to a group of which he
         * or she is a member.
         */
-       if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID)) {
+       if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_TAG|XFS_AT_PROJID)) {
                /*
                 * These IDs could have changed since we last looked at them.
                 * But, we're assured that if the ownership did change
@@ -450,10 +455,12 @@ xfs_setattr(
                 * would have changed also.
                 */
                iuid = ip->i_d.di_uid;
-               iprojid = ip->i_d.di_projid;
                igid = ip->i_d.di_gid;
-               gid = (mask & XFS_AT_GID) ? vap->va_gid : igid;
+               itag = ip->i_d.di_tag;
+               iprojid = ip->i_d.di_projid;
                uid = (mask & XFS_AT_UID) ? vap->va_uid : iuid;
+               gid = (mask & XFS_AT_GID) ? vap->va_gid : igid;
+               tag = (mask & XFS_AT_TAG) ? vap->va_tag : itag;
                projid = (mask & XFS_AT_PROJID) ? (xfs_prid_t)vap->va_projid :
                         iprojid;
 
@@ -481,6 +488,7 @@ xfs_setattr(
                if ((XFS_IS_UQUOTA_ON(mp) && iuid != uid) ||
                    (XFS_IS_PQUOTA_ON(mp) && iprojid != projid) ||
                    (XFS_IS_GQUOTA_ON(mp) && igid != gid)) {
+                       /* TODO: handle tagging? */
                        ASSERT(tp);
                        code = XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, udqp, gdqp,
                                                capable(CAP_FOWNER) ?
@@ -706,7 +714,7 @@ xfs_setattr(
         * and can change the group id only to a group of which he
         * or she is a member.
         */
-       if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID)) {
+       if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_TAG|XFS_AT_PROJID)) {
                /*
                 * CAP_FSETID overrides the following restrictions:
                 *
@@ -722,6 +730,9 @@ xfs_setattr(
                 * Change the ownerships and register quota modifications
                 * in the transaction.
                 */
+               if (itag != tag) {
+                       ip->i_d.di_tag = tag;
+               }
                if (iuid != uid) {
                        if (XFS_IS_UQUOTA_ON(mp)) {
                                ASSERT(mask & XFS_AT_UID);
@@ -802,6 +813,10 @@ xfs_setattr(
                        di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC);
                        if (vap->va_xflags & XFS_XFLAG_IMMUTABLE)
                                di_flags |= XFS_DIFLAG_IMMUTABLE;
+                       if (vap->va_xflags & XFS_XFLAG_IUNLINK)
+                               di_flags |= XFS_DIFLAG_IUNLINK;
+                       if (vap->va_xflags & XFS_XFLAG_BARRIER)
+                               di_flags |= XFS_DIFLAG_BARRIER;
                        if (vap->va_xflags & XFS_XFLAG_APPEND)
                                di_flags |= XFS_DIFLAG_APPEND;
                        if (vap->va_xflags & XFS_XFLAG_SYNC)
diff -NurpP --minimal linux-2.6.22.10/include/asm-alpha/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-alpha/socket.h
--- linux-2.6.22.10/include/asm-alpha/socket.h  2007-07-09 13:19:35 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-alpha/socket.h       2007-08-05 20:53:13 +0200
@@ -55,6 +55,8 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 /* Security levels - as per NRL IPv6 - don't actually do anything */
 #define SO_SECURITY_AUTHENTICATION             19
 #define SO_SECURITY_ENCRYPTION_TRANSPORT       20
diff -NurpP --minimal linux-2.6.22.10/include/asm-arm/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-arm/socket.h
--- linux-2.6.22.10/include/asm-arm/socket.h    2007-07-09 13:19:39 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-arm/socket.h 2007-08-05 20:53:13 +0200
@@ -52,4 +52,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _ASM_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/asm-arm/tlb.h linux-2.6.22.10-vs2.3.0.29/include/asm-arm/tlb.h
--- linux-2.6.22.10/include/asm-arm/tlb.h       2006-06-18 04:54:58 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-arm/tlb.h    2007-08-05 20:53:13 +0200
@@ -28,6 +28,7 @@
 #else /* !CONFIG_MMU */
 
 #include <asm/pgalloc.h>
+#include <linux/vs_memory.h>
 
 /*
  * TLB handling.  This allows us to remove pages from the page
diff -NurpP --minimal linux-2.6.22.10/include/asm-arm26/tlb.h linux-2.6.22.10-vs2.3.0.29/include/asm-arm26/tlb.h
--- linux-2.6.22.10/include/asm-arm26/tlb.h     2006-01-03 17:30:02 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-arm26/tlb.h  2007-08-05 20:53:13 +0200
@@ -3,6 +3,7 @@
 
 #include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
+#include <linux/vs_memory.h>
 
 /*
  * TLB handling.  This allows us to remove pages from the page
diff -NurpP --minimal linux-2.6.22.10/include/asm-arm26/unistd.h linux-2.6.22.10-vs2.3.0.29/include/asm-arm26/unistd.h
--- linux-2.6.22.10/include/asm-arm26/unistd.h  2007-02-06 03:01:35 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-arm26/unistd.h       2007-08-05 20:53:13 +0200
@@ -302,6 +302,8 @@
 #define __NR_mq_getsetattr             (__NR_SYSCALL_BASE+279)
 #define __NR_waitid                    (__NR_SYSCALL_BASE+280)
 
+#define __NR_vserver                   (__NR_SYSCALL_BASE+313)
+
 /*
  * The following SWIs are ARM private. FIXME - make appropriate for arm26
  */
diff -NurpP --minimal linux-2.6.22.10/include/asm-cris/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-cris/socket.h
--- linux-2.6.22.10/include/asm-cris/socket.h   2007-07-09 13:19:40 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-cris/socket.h        2007-08-05 20:53:13 +0200
@@ -54,6 +54,8 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _ASM_SOCKET_H */
 
 
diff -NurpP --minimal linux-2.6.22.10/include/asm-frv/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-frv/socket.h
--- linux-2.6.22.10/include/asm-frv/socket.h    2007-07-09 13:19:40 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-frv/socket.h 2007-08-05 20:53:13 +0200
@@ -52,5 +52,7 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _ASM_SOCKET_H */
 
diff -NurpP --minimal linux-2.6.22.10/include/asm-generic/tlb.h linux-2.6.22.10-vs2.3.0.29/include/asm-generic/tlb.h
--- linux-2.6.22.10/include/asm-generic/tlb.h   2006-11-30 21:19:31 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-generic/tlb.h        2007-08-05 20:53:13 +0200
@@ -14,6 +14,7 @@
 #define _ASM_GENERIC__TLB_H
 
 #include <linux/swap.h>
+#include <linux/vs_memory.h>
 #include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
 
diff -NurpP --minimal linux-2.6.22.10/include/asm-h8300/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-h8300/socket.h
--- linux-2.6.22.10/include/asm-h8300/socket.h  2007-07-09 13:19:40 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-h8300/socket.h       2007-08-05 20:53:13 +0200
@@ -52,4 +52,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _ASM_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/asm-i386/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-i386/socket.h
--- linux-2.6.22.10/include/asm-i386/socket.h   2007-07-09 13:19:42 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-i386/socket.h        2007-08-05 20:53:13 +0200
@@ -52,4 +52,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _ASM_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/asm-ia64/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-ia64/socket.h
--- linux-2.6.22.10/include/asm-ia64/socket.h   2007-07-09 13:19:43 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-ia64/socket.h        2007-08-05 20:53:13 +0200
@@ -61,4 +61,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _ASM_IA64_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/asm-ia64/tlb.h linux-2.6.22.10-vs2.3.0.29/include/asm-ia64/tlb.h
--- linux-2.6.22.10/include/asm-ia64/tlb.h      2006-09-20 16:58:40 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-ia64/tlb.h   2007-08-05 20:53:13 +0200
@@ -40,6 +40,7 @@
 #include <linux/mm.h>
 #include <linux/pagemap.h>
 #include <linux/swap.h>
+#include <linux/vs_memory.h>
 
 #include <asm/pgalloc.h>
 #include <asm/processor.h>
diff -NurpP --minimal linux-2.6.22.10/include/asm-m32r/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-m32r/socket.h
--- linux-2.6.22.10/include/asm-m32r/socket.h   2007-07-09 13:19:43 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-m32r/socket.h        2007-08-05 20:53:13 +0200
@@ -52,4 +52,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _ASM_M32R_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/asm-mips/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-mips/socket.h
--- linux-2.6.22.10/include/asm-mips/socket.h   2007-07-09 13:19:44 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-mips/socket.h        2007-08-05 20:53:13 +0200
@@ -73,6 +73,8 @@ To add: #define SO_REUSEPORT 0x0200   /* A
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #ifdef __KERNEL__
 
 /** sock_type - Socket types
diff -NurpP --minimal linux-2.6.22.10/include/asm-parisc/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-parisc/socket.h
--- linux-2.6.22.10/include/asm-parisc/socket.h 2007-07-09 13:19:44 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-parisc/socket.h      2007-08-05 20:53:13 +0200
@@ -51,5 +51,6 @@
 
 #define SO_PEERSEC             0x401d
 #define SO_PASSSEC             0x401e
+#define SO_PEERTAG             0x401f
 
 #endif /* _ASM_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/asm-powerpc/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-powerpc/socket.h
--- linux-2.6.22.10/include/asm-powerpc/socket.h        2007-07-09 13:19:44 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-powerpc/socket.h     2007-08-05 20:53:13 +0200
@@ -59,4 +59,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _ASM_POWERPC_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/asm-powerpc/systbl.h linux-2.6.22.10-vs2.3.0.29/include/asm-powerpc/systbl.h
--- linux-2.6.22.10/include/asm-powerpc/systbl.h        2007-07-09 13:19:44 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-powerpc/systbl.h     2007-08-05 20:53:13 +0200
@@ -260,7 +260,7 @@ COMPAT_SYS_SPU(fstatfs64)
 SYSX(sys_ni_syscall, ppc_fadvise64_64, ppc_fadvise64_64)
 PPC_SYS_SPU(rtas)
 OLDSYS(debug_setcontext)
-SYSCALL(ni_syscall)
+SYSX(sys_vserver, sys32_vserver, sys_vserver)
 COMPAT_SYS(migrate_pages)
 COMPAT_SYS(mbind)
 COMPAT_SYS(get_mempolicy)
diff -NurpP --minimal linux-2.6.22.10/include/asm-powerpc/unistd.h linux-2.6.22.10-vs2.3.0.29/include/asm-powerpc/unistd.h
--- linux-2.6.22.10/include/asm-powerpc/unistd.h        2007-07-09 13:19:45 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-powerpc/unistd.h     2007-08-05 20:53:13 +0200
@@ -275,7 +275,7 @@
 #endif
 #define __NR_rtas              255
 #define __NR_sys_debug_setcontext 256
-/* Number 257 is reserved for vserver */
+#define __NR_vserver           257
 #define __NR_migrate_pages     258
 #define __NR_mbind             259
 #define __NR_get_mempolicy     260
diff -NurpP --minimal linux-2.6.22.10/include/asm-s390/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-s390/socket.h
--- linux-2.6.22.10/include/asm-s390/socket.h   2007-07-09 13:19:45 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-s390/socket.h        2007-08-05 20:53:13 +0200
@@ -60,4 +60,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _ASM_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/asm-s390/unistd.h linux-2.6.22.10-vs2.3.0.29/include/asm-s390/unistd.h
--- linux-2.6.22.10/include/asm-s390/unistd.h   2007-07-09 13:19:45 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-s390/unistd.h        2007-08-05 20:53:13 +0200
@@ -202,7 +202,7 @@
 #define __NR_clock_gettime     (__NR_timer_create+6)
 #define __NR_clock_getres      (__NR_timer_create+7)
 #define __NR_clock_nanosleep   (__NR_timer_create+8)
-/* Number 263 is reserved for vserver */
+#define __NR_vserver           263
 #define __NR_statfs64          265
 #define __NR_fstatfs64         266
 #define __NR_remap_file_pages  267
diff -NurpP --minimal linux-2.6.22.10/include/asm-sh/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-sh/socket.h
--- linux-2.6.22.10/include/asm-sh/socket.h     2007-07-09 13:19:45 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-sh/socket.h  2007-08-05 20:53:13 +0200
@@ -52,4 +52,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* __ASM_SH_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/asm-sparc/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-sparc/socket.h
--- linux-2.6.22.10/include/asm-sparc/socket.h  2007-07-09 13:19:54 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-sparc/socket.h       2007-08-05 20:53:13 +0200
@@ -52,6 +52,8 @@
 #define SO_TIMESTAMPNS         0x0021
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 /* Security levels - as per NRL IPv6 - don't actually do anything */
 #define SO_SECURITY_AUTHENTICATION             0x5001
 #define SO_SECURITY_ENCRYPTION_TRANSPORT       0x5002
diff -NurpP --minimal linux-2.6.22.10/include/asm-sparc/unistd.h linux-2.6.22.10-vs2.3.0.29/include/asm-sparc/unistd.h
--- linux-2.6.22.10/include/asm-sparc/unistd.h  2007-07-09 13:19:54 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-sparc/unistd.h       2007-08-05 20:53:13 +0200
@@ -283,7 +283,7 @@
 #define __NR_timer_getoverrun  264
 #define __NR_timer_delete      265
 #define __NR_timer_create      266
-/* #define __NR_vserver                267 Reserved for VSERVER */
+#define __NR_vserver           267
 #define __NR_io_setup          268
 #define __NR_io_destroy                269
 #define __NR_io_submit         270
diff -NurpP --minimal linux-2.6.22.10/include/asm-sparc64/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-sparc64/socket.h
--- linux-2.6.22.10/include/asm-sparc64/socket.h        2007-07-09 13:19:54 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-sparc64/socket.h     2007-08-05 20:53:13 +0200
@@ -52,6 +52,8 @@
 #define SO_TIMESTAMPNS         0x0021
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             0x0022
+
 /* Security levels - as per NRL IPv6 - don't actually do anything */
 #define SO_SECURITY_AUTHENTICATION             0x5001
 #define SO_SECURITY_ENCRYPTION_TRANSPORT       0x5002
diff -NurpP --minimal linux-2.6.22.10/include/asm-sparc64/tlb.h linux-2.6.22.10-vs2.3.0.29/include/asm-sparc64/tlb.h
--- linux-2.6.22.10/include/asm-sparc64/tlb.h   2007-07-09 13:19:54 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-sparc64/tlb.h        2007-08-05 20:53:13 +0200
@@ -3,6 +3,7 @@
 
 #include <linux/swap.h>
 #include <linux/pagemap.h>
+#include <linux/vs_memory.h>
 #include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
 #include <asm/mmu_context.h>
diff -NurpP --minimal linux-2.6.22.10/include/asm-sparc64/unistd.h linux-2.6.22.10-vs2.3.0.29/include/asm-sparc64/unistd.h
--- linux-2.6.22.10/include/asm-sparc64/unistd.h        2007-07-09 13:19:54 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-sparc64/unistd.h     2007-08-05 20:53:13 +0200
@@ -285,7 +285,7 @@
 #define __NR_timer_getoverrun  264
 #define __NR_timer_delete      265
 #define __NR_timer_create      266
-/* #define __NR_vserver                267 Reserved for VSERVER */
+#define __NR_vserver           267
 #define __NR_io_setup          268
 #define __NR_io_destroy                269
 #define __NR_io_submit         270
diff -NurpP --minimal linux-2.6.22.10/include/asm-v850/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-v850/socket.h
--- linux-2.6.22.10/include/asm-v850/socket.h   2007-07-09 13:19:55 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-v850/socket.h        2007-08-05 20:53:13 +0200
@@ -52,4 +52,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* __V850_SOCKET_H__ */
diff -NurpP --minimal linux-2.6.22.10/include/asm-x86_64/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-x86_64/socket.h
--- linux-2.6.22.10/include/asm-x86_64/socket.h 2007-07-09 13:19:55 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-x86_64/socket.h      2007-08-05 20:53:13 +0200
@@ -52,4 +52,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _ASM_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/asm-x86_64/unistd.h linux-2.6.22.10-vs2.3.0.29/include/asm-x86_64/unistd.h
--- linux-2.6.22.10/include/asm-x86_64/unistd.h 2007-07-09 13:19:55 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-x86_64/unistd.h      2007-08-05 20:53:13 +0200
@@ -532,7 +532,7 @@ __SYSCALL(__NR_tgkill, sys_tgkill)
 #define __NR_utimes            235
 __SYSCALL(__NR_utimes, sys_utimes)
 #define __NR_vserver           236
-__SYSCALL(__NR_vserver, sys_ni_syscall)
+__SYSCALL(__NR_vserver, sys_vserver)
 #define __NR_mbind             237
 __SYSCALL(__NR_mbind, sys_mbind)
 #define __NR_set_mempolicy     238
diff -NurpP --minimal linux-2.6.22.10/include/asm-xtensa/socket.h linux-2.6.22.10-vs2.3.0.29/include/asm-xtensa/socket.h
--- linux-2.6.22.10/include/asm-xtensa/socket.h 2007-07-09 13:19:55 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/asm-xtensa/socket.h      2007-08-05 20:53:13 +0200
@@ -63,4 +63,6 @@
 #define SO_TIMESTAMPNS         35
 #define SCM_TIMESTAMPNS                SO_TIMESTAMPNS
 
+#define SO_PEERTAG             36
+
 #endif /* _XTENSA_SOCKET_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/Kbuild linux-2.6.22.10-vs2.3.0.29/include/linux/Kbuild
--- linux-2.6.22.10/include/linux/Kbuild        2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/Kbuild     2007-09-30 14:58:01 +0200
@@ -351,3 +351,6 @@ unifdef-y += xattr.h
 unifdef-y += xfrm.h
 
 objhdr-y += version.h
+
+header-y += vserver/
+
diff -NurpP --minimal linux-2.6.22.10/include/linux/capability.h linux-2.6.22.10-vs2.3.0.29/include/linux/capability.h
--- linux-2.6.22.10/include/linux/capability.h  2007-07-09 13:19:55 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/capability.h       2007-08-05 20:53:13 +0200
@@ -237,6 +237,7 @@ typedef __u32 kernel_cap_t;
    arbitrary SCSI commands */
 /* Allow setting encryption key on loopback filesystem */
 /* Allow setting zone reclaim policy */
+/* Allow the selection of a security context */
 
 #define CAP_SYS_ADMIN        21
 
@@ -290,6 +291,11 @@ typedef __u32 kernel_cap_t;
 
 #define CAP_AUDIT_CONTROL    30
 
+/* Allow context manipulations */
+/* Allow changing context info on files */
+
+#define CAP_CONTEXT         31
+
 #ifdef __KERNEL__
 /* 
  * Bounding set
diff -NurpP --minimal linux-2.6.22.10/include/linux/devpts_fs.h linux-2.6.22.10-vs2.3.0.29/include/linux/devpts_fs.h
--- linux-2.6.22.10/include/linux/devpts_fs.h   2004-08-14 12:55:59 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/devpts_fs.h        2007-10-06 18:19:52 +0200
@@ -30,5 +30,4 @@ static inline void devpts_pty_kill(int n
 
 #endif
 
-
 #endif /* _LINUX_DEVPTS_FS_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/ext2_fs.h linux-2.6.22.10-vs2.3.0.29/include/linux/ext2_fs.h
--- linux-2.6.22.10/include/linux/ext2_fs.h     2006-11-30 21:19:37 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/ext2_fs.h  2007-10-05 15:07:22 +0200
@@ -188,6 +188,8 @@ struct ext2_group_desc
 #define EXT2_NOTAIL_FL                 FS_NOTAIL_FL    /* file tail should not be merged */
 #define EXT2_DIRSYNC_FL                        FS_DIRSYNC_FL   /* dirsync behaviour (directories only) */
 #define EXT2_TOPDIR_FL                 FS_TOPDIR_FL    /* Top of directory hierarchies*/
+#define EXT2_BARRIER_FL                        FS_BARRIER_FL   /* Barrier for chroot() */
+#define EXT2_IUNLINK_FL                        FS_IUNLINK_FL   /* Immutable unlink */
 #define EXT2_RESERVED_FL               FS_RESERVED_FL  /* reserved for ext2 lib */
 
 #define EXT2_FL_USER_VISIBLE           FS_FL_USER_VISIBLE      /* User visible flags */
@@ -244,7 +246,7 @@ struct ext2_inode {
                struct {
                        __u8    l_i_frag;       /* Fragment number */
                        __u8    l_i_fsize;      /* Fragment size */
-                       __u16   i_pad1;
+                       __u16   l_i_tag;        /* Context Tag */
                        __le16  l_i_uid_high;   /* these 2 fields    */
                        __le16  l_i_gid_high;   /* were reserved2[0] */
                        __u32   l_i_reserved2;
@@ -276,6 +278,7 @@ struct ext2_inode {
 #define i_gid_low      i_gid
 #define i_uid_high     osd2.linux2.l_i_uid_high
 #define i_gid_high     osd2.linux2.l_i_gid_high
+#define i_raw_tag      osd2.linux2.l_i_tag
 #define i_reserved2    osd2.linux2.l_i_reserved2
 #endif
 
@@ -317,8 +320,9 @@ struct ext2_inode {
 #define EXT2_MOUNT_XATTR_USER          0x004000  /* Extended user attributes */
 #define EXT2_MOUNT_POSIX_ACL           0x008000  /* POSIX Access Control Lists */
 #define EXT2_MOUNT_XIP                 0x010000  /* Execute in place */
-#define EXT2_MOUNT_USRQUOTA            0x020000 /* user quota */
-#define EXT2_MOUNT_GRPQUOTA            0x040000 /* group quota */
+#define EXT2_MOUNT_USRQUOTA            0x020000  /* user quota */
+#define EXT2_MOUNT_GRPQUOTA            0x040000  /* group quota */
+#define EXT2_MOUNT_TAGGED              (1<<24)   /* Enable Context Tags */
 
 
 #define clear_opt(o, opt)              o &= ~EXT2_MOUNT_##opt
diff -NurpP --minimal linux-2.6.22.10/include/linux/ext3_fs.h linux-2.6.22.10-vs2.3.0.29/include/linux/ext3_fs.h
--- linux-2.6.22.10/include/linux/ext3_fs.h     2007-07-09 13:19:56 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/ext3_fs.h  2007-08-05 20:53:13 +0200
@@ -177,6 +177,8 @@ struct ext3_group_desc
 #define EXT3_NOTAIL_FL                 0x00008000 /* file tail should not be merged */
 #define EXT3_DIRSYNC_FL                        0x00010000 /* dirsync behaviour (directories only) */
 #define EXT3_TOPDIR_FL                 0x00020000 /* Top of directory hierarchies*/
+#define EXT3_BARRIER_FL                        0x04000000 /* Barrier for chroot() */
+#define EXT3_IUNLINK_FL                        0x08000000 /* Immutable unlink */
 #define EXT3_RESERVED_FL               0x80000000 /* reserved for ext3 lib */
 
 #define EXT3_FL_USER_VISIBLE           0x0003DFFF /* User visible flags */
@@ -296,7 +298,7 @@ struct ext3_inode {
                struct {
                        __u8    l_i_frag;       /* Fragment number */
                        __u8    l_i_fsize;      /* Fragment size */
-                       __u16   i_pad1;
+                       __u16   l_i_tag;        /* Context Tag */
                        __le16  l_i_uid_high;   /* these 2 fields    */
                        __le16  l_i_gid_high;   /* were reserved2[0] */
                        __u32   l_i_reserved2;
@@ -330,6 +332,7 @@ struct ext3_inode {
 #define i_gid_low      i_gid
 #define i_uid_high     osd2.linux2.l_i_uid_high
 #define i_gid_high     osd2.linux2.l_i_gid_high
+#define i_raw_tag      osd2.linux2.l_i_tag
 #define i_reserved2    osd2.linux2.l_i_reserved2
 
 #elif defined(__GNU__)
@@ -384,6 +387,7 @@ struct ext3_inode {
 #define EXT3_MOUNT_QUOTA               0x80000 /* Some quota option set */
 #define EXT3_MOUNT_USRQUOTA            0x100000 /* "old" user quota */
 #define EXT3_MOUNT_GRPQUOTA            0x200000 /* "old" group quota */
+#define EXT3_MOUNT_TAGGED              (1<<24) /* Enable Context Tags */
 
 /* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
 #ifndef _LINUX_EXT2_FS_H
@@ -812,6 +816,7 @@ struct buffer_head * ext3_bread (handle_
 int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
        sector_t iblock, unsigned long maxblocks, struct buffer_head *bh_result,
        int create, int extend_disksize);
+extern int ext3_sync_flags(struct inode *inode);
 
 extern void ext3_read_inode (struct inode *);
 extern int  ext3_write_inode (struct inode *, int);
diff -NurpP --minimal linux-2.6.22.10/include/linux/ext4_fs.h linux-2.6.22.10-vs2.3.0.29/include/linux/ext4_fs.h
--- linux-2.6.22.10/include/linux/ext4_fs.h     2007-07-09 13:19:56 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/ext4_fs.h  2007-08-05 20:53:13 +0200
@@ -189,8 +189,10 @@ struct ext4_group_desc
 #define EXT4_NOTAIL_FL                 0x00008000 /* file tail should not be merged */
 #define EXT4_DIRSYNC_FL                        0x00010000 /* dirsync behaviour (directories only) */
 #define EXT4_TOPDIR_FL                 0x00020000 /* Top of directory hierarchies*/
-#define EXT4_RESERVED_FL               0x80000000 /* reserved for ext4 lib */
 #define EXT4_EXTENTS_FL                        0x00080000 /* Inode uses extents */
+#define EXT4_BARRIER_FL                        0x04000000 /* Barrier for chroot() */
+#define EXT4_IUNLINK_FL                        0x08000000 /* Immutable unlink */
+#define EXT4_RESERVED_FL               0x80000000 /* reserved for ext4 lib */
 
 #define EXT4_FL_USER_VISIBLE           0x000BDFFF /* User visible flags */
 #define EXT4_FL_USER_MODIFIABLE                0x000380FF /* User modifiable flags */
@@ -312,7 +314,8 @@ struct ext4_inode {
                        __le16  l_i_file_acl_high;
                        __le16  l_i_uid_high;   /* these 2 fields */
                        __le16  l_i_gid_high;   /* were reserved2[0] */
-                       __u32   l_i_reserved2;
+                       __u16   l_i_tag;        /* Context Tag */
+                       __u16   l_i_reserved2;
                } linux2;
                struct {
                        __u8    h_i_frag;       /* Fragment number */
@@ -344,6 +347,7 @@ struct ext4_inode {
 #define i_gid_low      i_gid
 #define i_uid_high     osd2.linux2.l_i_uid_high
 #define i_gid_high     osd2.linux2.l_i_gid_high
+#define i_raw_tag      osd2.linux2.l_i_tag
 #define i_reserved2    osd2.linux2.l_i_reserved2
 
 #elif defined(__GNU__)
@@ -400,6 +404,7 @@ struct ext4_inode {
 #define EXT4_MOUNT_USRQUOTA            0x100000 /* "old" user quota */
 #define EXT4_MOUNT_GRPQUOTA            0x200000 /* "old" group quota */
 #define EXT4_MOUNT_EXTENTS             0x400000 /* Extents support */
+#define EXT4_MOUNT_TAGGED              (1<<24) /* Enable Context Tags */
 
 /* Compatibility, for having both ext2_fs.h and ext4_fs.h included at once */
 #ifndef _LINUX_EXT2_FS_H
@@ -850,6 +855,7 @@ struct buffer_head * ext4_bread (handle_
 int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
        sector_t iblock, unsigned long maxblocks, struct buffer_head *bh_result,
        int create, int extend_disksize);
+extern int ext4_sync_flags(struct inode *inode);
 
 extern void ext4_read_inode (struct inode *);
 extern int  ext4_write_inode (struct inode *, int);
diff -NurpP --minimal linux-2.6.22.10/include/linux/fs.h linux-2.6.22.10-vs2.3.0.29/include/linux/fs.h
--- linux-2.6.22.10/include/linux/fs.h  2007-07-09 13:19:56 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/fs.h       2007-10-20 00:01:05 +0200
@@ -123,6 +123,8 @@ extern int dir_notify_enable;
 #define MS_SLAVE       (1<<19) /* change to slave */
 #define MS_SHARED      (1<<20) /* change to shared */
 #define MS_RELATIME    (1<<21) /* Update atime relative to mtime/ctime. */
+#define MS_TAGGED      (1<<24) /* use generic inode tagging */
+#define MS_TAGID       (1<<25) /* use specific tag for this mount */
 #define MS_ACTIVE      (1<<30)
 #define MS_NOUSER      (1<<31)
 
@@ -149,6 +151,8 @@ extern int dir_notify_enable;
 #define S_NOCMTIME     128     /* Do not update file c/mtime */
 #define S_SWAPFILE     256     /* Do not truncate: swapon got its bmaps */
 #define S_PRIVATE      512     /* Inode is fs-internal */
+#define S_BARRIER      1024    /* Barrier for chroot() */
+#define S_IUNLINK      2048    /* Immutable unlink */
 
 /*
  * Note that nosuid etc flags are inode-specific: setting some file-system
@@ -165,24 +169,36 @@ extern int dir_notify_enable;
  */
 #define __IS_FLG(inode,flg) ((inode)->i_sb->s_flags & (flg))
 
-#define IS_RDONLY(inode) ((inode)->i_sb->s_flags & MS_RDONLY)
+#define IS_RDONLY(inode)       __IS_FLG(inode, MS_RDONLY)
 #define IS_SYNC(inode)         (__IS_FLG(inode, MS_SYNCHRONOUS) || \
                                        ((inode)->i_flags & S_SYNC))
 #define IS_DIRSYNC(inode)      (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \
                                        ((inode)->i_flags & (S_SYNC|S_DIRSYNC)))
 #define IS_MANDLOCK(inode)     __IS_FLG(inode, MS_MANDLOCK)
-#define IS_NOATIME(inode)   __IS_FLG(inode, MS_RDONLY|MS_NOATIME)
+#define IS_NOATIME(inode)      __IS_FLG(inode, MS_RDONLY|MS_NOATIME)
+#define IS_TAGGED(inode)       __IS_FLG(inode, MS_TAGGED)
 
 #define IS_NOQUOTA(inode)      ((inode)->i_flags & S_NOQUOTA)
 #define IS_APPEND(inode)       ((inode)->i_flags & S_APPEND)
 #define IS_IMMUTABLE(inode)    ((inode)->i_flags & S_IMMUTABLE)
+#define IS_IUNLINK(inode)      ((inode)->i_flags & S_IUNLINK)
+#define IS_IXORUNLINK(inode)   ((IS_IUNLINK(inode) ? S_IMMUTABLE : 0) ^ IS_IMMUTABLE(inode))
 #define IS_POSIXACL(inode)     __IS_FLG(inode, MS_POSIXACL)
 
+#define IS_BARRIER(inode)      (S_ISDIR((inode)->i_mode) && ((inode)->i_flags & S_BARRIER))
 #define IS_DEADDIR(inode)      ((inode)->i_flags & S_DEAD)
 #define IS_NOCMTIME(inode)     ((inode)->i_flags & S_NOCMTIME)
 #define IS_SWAPFILE(inode)     ((inode)->i_flags & S_SWAPFILE)
 #define IS_PRIVATE(inode)      ((inode)->i_flags & S_PRIVATE)
 
+#ifdef CONFIG_VSERVER_COWBL
+#  define IS_COW(inode)                (IS_IUNLINK(inode) && IS_IMMUTABLE(inode))
+#  define IS_COW_LINK(inode)   (S_ISREG((inode)->i_mode) && ((inode)->i_nlink > 1))
+#else
+#  define IS_COW(inode)                (0)
+#  define IS_COW_LINK(inode)   (0)
+#endif
+
 /* the read-only stuff doesn't really belong here, but any other place is
    probably as bad and I don't want to create yet another include file. */
 
@@ -256,12 +272,13 @@ extern int dir_notify_enable;
 #define FS_TOPDIR_FL                   0x00020000 /* Top of directory hierarchies*/
 #define FS_EXTENT_FL                   0x00080000 /* Extents */
 #define FS_DIRECTIO_FL                 0x00100000 /* Use direct i/o */
+#define FS_BARRIER_FL                  0x04000000 /* Barrier for chroot() */
+#define FS_IUNLINK_FL                  0x08000000 /* Immutable unlink */
 #define FS_RESERVED_FL                 0x80000000 /* reserved for ext2 lib */
 
 #define FS_FL_USER_VISIBLE             0x0003DFFF /* User visible flags */
 #define FS_FL_USER_MODIFIABLE          0x000380FF /* User modifiable flags */
 
-
 #define SYNC_FILE_RANGE_WAIT_BEFORE    1
 #define SYNC_FILE_RANGE_WRITE          2
 #define SYNC_FILE_RANGE_WAIT_AFTER     4
@@ -327,6 +344,7 @@ typedef void (dio_iodone_t)(struct kiocb
 #define ATTR_KILL_SUID 2048
 #define ATTR_KILL_SGID 4096
 #define ATTR_FILE      8192
+#define ATTR_TAG       16384
 
 /*
  * This is the Inode Attributes structure, used for notify_change().  It
@@ -342,6 +360,7 @@ struct iattr {
        umode_t         ia_mode;
        uid_t           ia_uid;
        gid_t           ia_gid;
+       tag_t           ia_tag;
        loff_t          ia_size;
        struct timespec ia_atime;
        struct timespec ia_mtime;
@@ -355,6 +374,9 @@ struct iattr {
        struct file     *ia_file;
 };
 
+#define ATTR_FLAG_BARRIER      512     /* Barrier for chroot() */
+#define ATTR_FLAG_IUNLINK      1024    /* Immutable unlink */
+
 /*
  * Includes for diskquotas.
  */
@@ -537,7 +559,9 @@ struct inode {
        unsigned int            i_nlink;
        uid_t                   i_uid;
        gid_t                   i_gid;
+       tag_t                   i_tag;
        dev_t                   i_rdev;
+       dev_t                   i_mdev;
        unsigned long           i_version;
        loff_t                  i_size;
 #ifdef __NEED_I_SIZE_ORDERED
@@ -672,12 +696,12 @@ static inline void i_size_write(struct i
 
 static inline unsigned iminor(const struct inode *inode)
 {
-       return MINOR(inode->i_rdev);
+       return MINOR(inode->i_mdev);
 }
 
 static inline unsigned imajor(const struct inode *inode)
 {
-       return MAJOR(inode->i_rdev);
+       return MAJOR(inode->i_mdev);
 }
 
 extern struct block_device *I_BDEV(struct inode *inode);
@@ -728,6 +752,7 @@ struct file {
        loff_t                  f_pos;
        struct fown_struct      f_owner;
        unsigned int            f_uid, f_gid;
+       xid_t                   f_xid;
        struct file_ra_state    f_ra;
 
        unsigned long           f_version;
@@ -811,6 +836,7 @@ struct file_lock {
        unsigned char fl_type;
        loff_t fl_start;
        loff_t fl_end;
+       xid_t fl_xid;
 
        struct fasync_struct *  fl_fasync; /* for lease break notifications */
        unsigned long fl_break_time;    /* for nonblocking lease breaks */
@@ -993,12 +1019,12 @@ extern void unlock_super(struct super_bl
  */
 extern int vfs_permission(struct nameidata *, int);
 extern int vfs_create(struct inode *, struct dentry *, int, struct nameidata *);
-extern int vfs_mkdir(struct inode *, struct dentry *, int);
-extern int vfs_mknod(struct inode *, struct dentry *, int, dev_t);
-extern int vfs_symlink(struct inode *, struct dentry *, const char *, int);
-extern int vfs_link(struct dentry *, struct inode *, struct dentry *);
-extern int vfs_rmdir(struct inode *, struct dentry *);
-extern int vfs_unlink(struct inode *, struct dentry *);
+extern int vfs_mkdir(struct inode *, struct dentry *, int, struct nameidata *);
+extern int vfs_mknod(struct inode *, struct dentry *, int, dev_t, struct nameidata *);
+extern int vfs_symlink(struct inode *, struct dentry *, const char *, int, struct nameidata *);
+extern int vfs_link(struct dentry *, struct inode *, struct dentry *, struct nameidata *);
+extern int vfs_rmdir(struct inode *, struct dentry *, struct nameidata *);
+extern int vfs_unlink(struct inode *, struct dentry *, struct nameidata *);
 extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
 
 /*
@@ -1138,6 +1164,7 @@ struct inode_operations {
        ssize_t (*listxattr) (struct dentry *, char *, size_t);
        int (*removexattr) (struct dentry *, const char *);
        void (*truncate_range)(struct inode *, loff_t, loff_t);
+       int (*sync_flags) (struct inode *);
 };
 
 struct seq_file;
@@ -1153,6 +1180,7 @@ extern ssize_t vfs_readv(struct file *, 
                unsigned long, loff_t *);
 extern ssize_t vfs_writev(struct file *, const struct iovec __user *,
                unsigned long, loff_t *);
+ssize_t vfs_sendfile(struct file *, struct file *, loff_t *, size_t, loff_t);
 
 /*
  * NOTE: write_inode, delete_inode, clear_inode, put_inode can be called
@@ -1898,6 +1926,7 @@ extern int dcache_dir_open(struct inode 
 extern int dcache_dir_close(struct inode *, struct file *);
 extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
 extern int dcache_readdir(struct file *, void *, filldir_t);
+extern int dcache_readdir_filter(struct file *, void *, filldir_t, int (*)(struct dentry *));
 extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *);
 extern int simple_statfs(struct dentry *, struct kstatfs *);
 extern int simple_link(struct dentry *, struct inode *, struct dentry *);
diff -NurpP --minimal linux-2.6.22.10/include/linux/init_task.h linux-2.6.22.10-vs2.3.0.29/include/linux/init_task.h
--- linux-2.6.22.10/include/linux/init_task.h   2007-07-09 13:19:56 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/init_task.h        2007-08-05 20:53:13 +0200
@@ -169,6 +169,10 @@ extern struct group_info init_groups;
        },                                                              \
        INIT_TRACE_IRQFLAGS                                             \
        INIT_LOCKDEP                                                    \
+       .xid            = 0,                                            \
+       .vx_info        = NULL,                                         \
+       .nid            = 0,                                            \
+       .nx_info        = NULL,                                         \
 }
 
 
diff -NurpP --minimal linux-2.6.22.10/include/linux/ipc.h linux-2.6.22.10-vs2.3.0.29/include/linux/ipc.h
--- linux-2.6.22.10/include/linux/ipc.h 2007-07-09 13:19:56 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/ipc.h      2007-08-05 20:53:13 +0200
@@ -63,6 +63,7 @@ struct kern_ipc_perm
        key_t           key;
        uid_t           uid;
        gid_t           gid;
+       xid_t           xid;
        uid_t           cuid;
        gid_t           cgid;
        mode_t          mode; 
diff -NurpP --minimal linux-2.6.22.10/include/linux/jffs2.h linux-2.6.22.10-vs2.3.0.29/include/linux/jffs2.h
--- linux-2.6.22.10/include/linux/jffs2.h       2006-11-30 21:19:38 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/jffs2.h    2007-10-05 15:07:22 +0200
@@ -82,12 +82,36 @@
 //#define JFFS2_NODETYPE_OPTIONS (JFFS2_FEATURE_RWCOMPAT_COPY | JFFS2_NODE_ACCURATE | 4)
 
 
-#define JFFS2_INO_FLAG_PREREAD   1     /* Do read_inode() for this one at
+#define JFFS2_INO_FLAG_PREREAD   0x01  /* Do read_inode() for this one at
                                           mount time, don't wait for it to
                                           happen later */
-#define JFFS2_INO_FLAG_USERCOMPR  2    /* User has requested a specific
+#define JFFS2_INO_FLAG_USERCOMPR 0x02  /* User has requested a specific
                                           compression type */
 
+#define JFFS2_INO_FLAG_IMMUTABLE 0x10  /* immutable node */
+#define JFFS2_INO_FLAG_IUNLINK   0x20  /* immutable unlink */
+#define JFFS2_INO_FLAG_BARRIER   0x40  /* barrier */
+
+#define JFFS2_USER_VISIBLE       0x10
+#define JFFS2_USER_MODIFIABLE    0x10
+
+/*
+ * Mount flags
+ */
+#define JFFS2_MOUNT_TAGGED     (1<<24)   /* Enable Context Tags */
+
+#define clear_opt(o, opt)      o &= ~JFFS2_MOUNT_##opt
+#define set_opt(o, opt)                o |= JFFS2_MOUNT_##opt
+
+/*
+ * Maximal mount counts between two filesystem checks
+ */
+#define EXT2_DFL_MAX_MNT_COUNT         20      /* Allow 20 mounts */
+#define EXT2_DFL_CHECKINTERVAL         0       /* Don't use interval check */
+
+/*
+ * Behaviour when detecting errors
+ */
 
 /* These can go once we've made sure we've caught all uses without
    byteswapping */
@@ -97,7 +121,7 @@ typedef struct {
 } __attribute__((packed)) jint32_t;
 
 typedef struct {
-       uint32_t m;
+       uint16_t m;
 } __attribute__((packed)) jmode_t;
 
 typedef struct {
@@ -145,7 +169,8 @@ struct jffs2_raw_inode
        jint32_t hdr_crc;
        jint32_t ino;        /* Inode number.  */
        jint32_t version;    /* Version number.  */
-       jmode_t mode;       /* The file's type or mode.  */
+       jmode_t mode;        /* The file's type or mode.  */
+       jint16_t tag;        /* context tagging */
        jint16_t uid;        /* The file's owner.  */
        jint16_t gid;        /* The file's group.  */
        jint32_t isize;      /* Total resultant size of this inode (used for truncations)  */
diff -NurpP --minimal linux-2.6.22.10/include/linux/loop.h linux-2.6.22.10-vs2.3.0.29/include/linux/loop.h
--- linux-2.6.22.10/include/linux/loop.h        2007-07-09 13:19:56 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/loop.h     2007-08-05 20:53:13 +0200
@@ -45,6 +45,7 @@ struct loop_device {
        struct loop_func_table *lo_encryption;
        __u32           lo_init[2];
        uid_t           lo_key_owner;   /* Who set the key */
+       xid_t           lo_xid;
        int             (*ioctl)(struct loop_device *, int cmd, 
                                 unsigned long arg); 
 
diff -NurpP --minimal linux-2.6.22.10/include/linux/magic.h linux-2.6.22.10-vs2.3.0.29/include/linux/magic.h
--- linux-2.6.22.10/include/linux/magic.h       2007-07-09 13:19:56 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/magic.h    2007-10-06 18:19:33 +0200
@@ -3,7 +3,7 @@
 
 #define ADFS_SUPER_MAGIC       0xadf5
 #define AFFS_SUPER_MAGIC       0xadff
-#define AFS_SUPER_MAGIC                0x5346414F
+#define AFS_SUPER_MAGIC                0x5346414F
 #define AUTOFS_SUPER_MAGIC     0x0187
 #define CODA_SUPER_MAGIC       0x73757245
 #define EFS_SUPER_MAGIC                0x414A53
@@ -27,6 +27,7 @@
 #define NFS_SUPER_MAGIC                0x6969
 #define OPENPROM_SUPER_MAGIC   0x9fa1
 #define PROC_SUPER_MAGIC       0x9fa0
+#define DEVPTS_SUPER_MAGIC     0x1cd1
 #define QNX4_SUPER_MAGIC       0x002f          /* qnx4 fs detection */
 
 #define REISERFS_SUPER_MAGIC   0x52654973      /* used by gcc */
diff -NurpP --minimal linux-2.6.22.10/include/linux/major.h linux-2.6.22.10-vs2.3.0.29/include/linux/major.h
--- linux-2.6.22.10/include/linux/major.h       2007-07-09 13:19:56 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/major.h    2007-08-05 20:53:13 +0200
@@ -15,6 +15,7 @@
 #define HD_MAJOR               IDE0_MAJOR
 #define PTY_SLAVE_MAJOR                3
 #define TTY_MAJOR              4
+#define VROOT_MAJOR            4
 #define TTYAUX_MAJOR           5
 #define LP_MAJOR               6
 #define VCS_MAJOR              7
diff -NurpP --minimal linux-2.6.22.10/include/linux/mount.h linux-2.6.22.10-vs2.3.0.29/include/linux/mount.h
--- linux-2.6.22.10/include/linux/mount.h       2007-07-09 13:19:56 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/mount.h    2007-09-05 02:29:04 +0200
@@ -28,6 +28,9 @@ struct mnt_namespace;
 #define MNT_NOATIME    0x08
 #define MNT_NODIRATIME 0x10
 #define MNT_RELATIME   0x20
+#define MNT_RDONLY     0x40
+
+#define MNT_IS_RDONLY(m)       ((m) && ((m)->mnt_flags & MNT_RDONLY))
 
 #define MNT_SHRINKABLE 0x100
 
@@ -35,6 +38,10 @@ struct mnt_namespace;
 #define MNT_UNBINDABLE 0x2000  /* if the vfsmount is a unbindable mount */
 #define MNT_PNODE_MASK 0x3000  /* propagation flag mask */
 
+#define MNT_TAGID      0x10000
+#define MNT_NOTAG      0x20000
+#define MNT_NOTAGCHECK 0x40000
+
 struct vfsmount {
        struct list_head mnt_hash;
        struct vfsmount *mnt_parent;    /* fs we are mounted on */
@@ -61,6 +68,7 @@ struct vfsmount {
        atomic_t mnt_count;
        int mnt_expiry_mark;            /* true if marked for expiry */
        int mnt_pinned;
+       tag_t mnt_tag;                  /* tagging used for vfsmount */
 };
 
 static inline struct vfsmount *mntget(struct vfsmount *mnt)
diff -NurpP --minimal linux-2.6.22.10/include/linux/net.h linux-2.6.22.10-vs2.3.0.29/include/linux/net.h
--- linux-2.6.22.10/include/linux/net.h 2007-07-09 13:19:56 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/net.h      2007-08-05 20:53:13 +0200
@@ -63,6 +63,7 @@ typedef enum {
 #define SOCK_NOSPACE           2
 #define SOCK_PASSCRED          3
 #define SOCK_PASSSEC           4
+#define SOCK_USER_SOCKET       5
 
 #ifndef ARCH_HAS_SOCKET_TYPES
 /**
diff -NurpP --minimal linux-2.6.22.10/include/linux/nfs_mount.h linux-2.6.22.10-vs2.3.0.29/include/linux/nfs_mount.h
--- linux-2.6.22.10/include/linux/nfs_mount.h   2007-07-09 13:20:00 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/nfs_mount.h        2007-08-05 20:53:13 +0200
@@ -62,6 +62,7 @@ struct nfs_mount_data {
 #define NFS_MOUNT_SECFLAVOUR   0x2000  /* 5 */
 #define NFS_MOUNT_NORDIRPLUS   0x4000  /* 5 */
 #define NFS_MOUNT_UNSHARED     0x8000  /* 5 */
-#define NFS_MOUNT_FLAGMASK     0xFFFF
+#define NFS_MOUNT_TAGGED       0x10000 /* context tagging */
+#define NFS_MOUNT_FLAGMASK     0x1FFFF
 
 #endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/nsproxy.h linux-2.6.22.10-vs2.3.0.29/include/linux/nsproxy.h
--- linux-2.6.22.10/include/linux/nsproxy.h     2007-07-09 13:20:00 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/nsproxy.h  2007-08-05 20:53:13 +0200
@@ -3,6 +3,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/sched.h>
+#include <linux/vserver/debug.h>
 
 struct mnt_namespace;
 struct uts_namespace;
@@ -32,26 +33,46 @@ struct nsproxy {
 extern struct nsproxy init_nsproxy;
 
 int copy_namespaces(int flags, struct task_struct *tsk);
+struct nsproxy *copy_nsproxy(struct nsproxy *orig);
 void get_task_namespaces(struct task_struct *tsk);
 void free_nsproxy(struct nsproxy *ns);
 int unshare_nsproxy_namespaces(unsigned long, struct nsproxy **,
        struct fs_struct *);
 
-static inline void put_nsproxy(struct nsproxy *ns)
+#define        get_nsproxy(n)  __get_nsproxy(n, __FILE__, __LINE__)
+
+static inline void __get_nsproxy(struct nsproxy *ns,
+       const char *_file, int _line)
 {
+       vxlprintk(VXD_CBIT(space, 0), "get_nsproxy(%p[%u])",
+               ns, atomic_read(&ns->count), _file, _line);
+       atomic_inc(&ns->count);
+}
+
+#define        put_nsproxy(n)  __put_nsproxy(n, __FILE__, __LINE__)
+
+static inline void __put_nsproxy(struct nsproxy *ns,
+       const char *_file, int _line)
+{
+       vxlprintk(VXD_CBIT(space, 0), "put_nsproxy(%p[%u])",
+               ns, atomic_read(&ns->count), _file, _line);
        if (atomic_dec_and_test(&ns->count)) {
                free_nsproxy(ns);
        }
 }
 
-static inline void exit_task_namespaces(struct task_struct *p)
+#define        exit_task_namespaces(p) __exit_task_namespaces(p, __FILE__, __LINE__)
+
+static inline void __exit_task_namespaces(struct task_struct *p,
+       const char *_file, int _line)
 {
        struct nsproxy *ns = p->nsproxy;
        if (ns) {
                task_lock(p);
                p->nsproxy = NULL;
                task_unlock(p);
-               put_nsproxy(ns);
+               __put_nsproxy(ns, _file, _line);
        }
 }
+
 #endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/pid.h linux-2.6.22.10-vs2.3.0.29/include/linux/pid.h
--- linux-2.6.22.10/include/linux/pid.h 2007-07-09 13:20:00 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/pid.h      2007-08-05 20:53:13 +0200
@@ -8,7 +8,8 @@ enum pid_type
        PIDTYPE_PID,
        PIDTYPE_PGID,
        PIDTYPE_SID,
-       PIDTYPE_MAX
+       PIDTYPE_MAX,
+       PIDTYPE_REALPID
 };
 
 /*
diff -NurpP --minimal linux-2.6.22.10/include/linux/proc_fs.h linux-2.6.22.10-vs2.3.0.29/include/linux/proc_fs.h
--- linux-2.6.22.10/include/linux/proc_fs.h     2007-07-09 13:20:00 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/proc_fs.h  2007-08-05 20:53:13 +0200
@@ -54,6 +54,7 @@ struct proc_dir_entry {
        nlink_t nlink;
        uid_t uid;
        gid_t gid;
+       int vx_flags;
        loff_t size;
        const struct inode_operations *proc_iops;
        const struct file_operations *proc_fops;
@@ -246,13 +247,20 @@ static inline void kclist_add(struct kco
 extern void kclist_add(struct kcore_list *, void *, size_t);
 #endif
 
+struct vx_info;
+struct nx_info;
+
 union proc_op {
        int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **);
        int (*proc_read)(struct task_struct *task, char *page);
+       int (*proc_vs_read)(char *page);
+       int (*proc_vxi_read)(struct vx_info *vxi, char *page);
+       int (*proc_nxi_read)(struct nx_info *nxi, char *page);
 };
 
 struct proc_inode {
        struct pid *pid;
+       int vx_flags;
        int fd;
        union proc_op op;
        struct proc_dir_entry *pde;
diff -NurpP --minimal linux-2.6.22.10/include/linux/reiserfs_fs.h linux-2.6.22.10-vs2.3.0.29/include/linux/reiserfs_fs.h
--- linux-2.6.22.10/include/linux/reiserfs_fs.h 2007-05-02 19:25:34 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/reiserfs_fs.h      2007-08-05 20:53:13 +0200
@@ -821,6 +821,10 @@ struct stat_data_v1 {
 #define REISERFS_COMPR_FL     FS_COMPR_FL
 #define REISERFS_NOTAIL_FL    FS_NOTAIL_FL
 
+/* unfortunately reiserfs sdattr is only 16 bit */
+#define REISERFS_BARRIER_FL   (FS_BARRIER_FL >> 16)
+#define REISERFS_IUNLINK_FL   (FS_IUNLINK_FL >> 16)
+
 /* persistent flags that file inherits from the parent directory */
 #define REISERFS_INHERIT_MASK ( REISERFS_IMMUTABLE_FL |        \
                                REISERFS_SYNC_FL |      \
@@ -830,6 +834,9 @@ struct stat_data_v1 {
                                REISERFS_COMPR_FL |     \
                                REISERFS_NOTAIL_FL )
 
+#define REISERFS_FL_USER_VISIBLE       0x80FF
+#define REISERFS_FL_USER_MODIFIABLE    0x80FF
+
 /* Stat Data on disk (reiserfs version of UFS disk inode minus the
    address blocks) */
 struct stat_data {
@@ -1901,6 +1908,7 @@ static inline void reiserfs_update_sd(st
 void sd_attrs_to_i_attrs(__u16 sd_attrs, struct inode *inode);
 void i_attrs_to_sd_attrs(struct inode *inode, __u16 * sd_attrs);
 int reiserfs_setattr(struct dentry *dentry, struct iattr *attr);
+int reiserfs_sync_flags(struct inode *inode);
 
 /* namei.c */
 void set_de_name_and_namelen(struct reiserfs_dir_entry *de);
diff -NurpP --minimal linux-2.6.22.10/include/linux/reiserfs_fs_sb.h linux-2.6.22.10-vs2.3.0.29/include/linux/reiserfs_fs_sb.h
--- linux-2.6.22.10/include/linux/reiserfs_fs_sb.h      2007-07-09 13:20:00 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/reiserfs_fs_sb.h   2007-08-05 20:53:13 +0200
@@ -458,6 +458,7 @@ enum reiserfs_mount_options {
        REISERFS_POSIXACL,
        REISERFS_BARRIER_NONE,
        REISERFS_BARRIER_FLUSH,
+       REISERFS_TAGGED,
 
        /* Actions on error */
        REISERFS_ERROR_PANIC,
diff -NurpP --minimal linux-2.6.22.10/include/linux/sched.h linux-2.6.22.10-vs2.3.0.29/include/linux/sched.h
--- linux-2.6.22.10/include/linux/sched.h       2007-07-09 13:20:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/sched.h    2007-10-04 23:47:06 +0200
@@ -26,6 +26,7 @@
 #define CLONE_STOPPED          0x02000000      /* Start in stopped state */
 #define CLONE_NEWUTS           0x04000000      /* New utsname group? */
 #define CLONE_NEWIPC           0x08000000      /* New ipcs */
+#define CLONE_KTHREAD          0x10000000      /* clone a kernel thread */
 
 /*
  * Scheduling policies
@@ -94,7 +95,7 @@ struct bio;
  * List of flags we want to share for kernel threads,
  * if only because they are not used by them anyway.
  */
-#define CLONE_KERNEL   (CLONE_FS | CLONE_FILES | CLONE_SIGHAND)
+#define CLONE_KERNEL   (CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_KTHREAD)
 
 /*
  * These are the constant used to fake the fixed-point load-average
@@ -146,12 +147,13 @@ extern unsigned long weighted_cpuload(co
 #define TASK_UNINTERRUPTIBLE   2
 #define TASK_STOPPED           4
 #define TASK_TRACED            8
+#define TASK_ONHOLD            16
 /* in tsk->exit_state */
-#define EXIT_ZOMBIE            16
-#define EXIT_DEAD              32
+#define EXIT_ZOMBIE            32
+#define EXIT_DEAD              64
 /* in tsk->state again */
-#define TASK_NONINTERACTIVE    64
-#define TASK_DEAD              128
+#define TASK_NONINTERACTIVE    128
+#define TASK_DEAD              256
 
 #define __set_task_state(tsk, state_value)             \
        do { (tsk)->state = (state_value); } while (0)
@@ -287,27 +289,30 @@ extern void arch_unmap_area_topdown(stru
  * The mm counters are not protected by its page_table_lock,
  * so must be incremented atomically.
  */
-#define set_mm_counter(mm, member, value) atomic_long_set(&(mm)->_##member, value)
-#define get_mm_counter(mm, member) ((unsigned long)atomic_long_read(&(mm)->_##member))
-#define add_mm_counter(mm, member, value) atomic_long_add(value, &(mm)->_##member)
-#define inc_mm_counter(mm, member) atomic_long_inc(&(mm)->_##member)
-#define dec_mm_counter(mm, member) atomic_long_dec(&(mm)->_##member)
 typedef atomic_long_t mm_counter_t;
+#define __set_mm_counter(mm, member, value) \
+       atomic_long_set(&(mm)->_##member, value)
+#define get_mm_counter(mm, member) \
+       ((unsigned long)atomic_long_read(&(mm)->_##member))
 
 #else  /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
 /*
  * The mm counters are protected by its page_table_lock,
  * so can be incremented directly.
  */
-#define set_mm_counter(mm, member, value) (mm)->_##member = (value)
-#define get_mm_counter(mm, member) ((mm)->_##member)
-#define add_mm_counter(mm, member, value) (mm)->_##member += (value)
-#define inc_mm_counter(mm, member) (mm)->_##member++
-#define dec_mm_counter(mm, member) (mm)->_##member--
 typedef unsigned long mm_counter_t;
+#define __set_mm_counter(mm, member, value) (mm)->_##member = (value)
+#define get_mm_counter(mm, member) ((mm)->_##member)
 
 #endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
 
+#define set_mm_counter(mm, member, value) \
+       vx_ ## member ## pages_sub((mm), (get_mm_counter(mm, member) - value))
+#define add_mm_counter(mm, member, value) \
+       vx_ ## member ## pages_add((mm), (value))
+#define inc_mm_counter(mm, member) vx_ ## member ## pages_inc((mm))
+#define dec_mm_counter(mm, member) vx_ ## member ## pages_dec((mm))
+
 #define get_mm_rss(mm)                                 \
        (get_mm_counter(mm, file_rss) + get_mm_counter(mm, anon_rss))
 #define update_hiwater_rss(mm) do {                    \
@@ -365,6 +370,7 @@ struct mm_struct {
 
        /* Architecture-specific MM context */
        mm_context_t context;
+       struct vx_info *mm_vx_info;
 
        /* Swap token stuff */
        /*
@@ -570,9 +576,10 @@ struct user_struct {
        /* Hash table maintenance information */
        struct list_head uidhash_list;
        uid_t uid;
+       xid_t xid;
 };
 
-extern struct user_struct *find_user(uid_t);
+extern struct user_struct *find_user(xid_t, uid_t);
 
 extern struct user_struct root_user;
 #define INIT_USER (&root_user)
@@ -969,6 +976,15 @@ struct task_struct {
        
        void *security;
        struct audit_context *audit_context;
+
+/* vserver context data */
+       struct vx_info *vx_info;
+       struct nx_info *nx_info;
+
+       xid_t xid;
+       nid_t nid;
+       tag_t tag;
+
        seccomp_t seccomp;
 
 /* Thread group tracking */
@@ -1290,12 +1306,16 @@ extern struct task_struct init_task;
 
 extern struct   mm_struct init_mm;
 
-#define find_task_by_pid(nr)   find_task_by_pid_type(PIDTYPE_PID, nr)
+#define find_task_by_real_pid(nr) \
+       find_task_by_pid_type(PIDTYPE_REALPID, nr)
+#define find_task_by_pid(nr) \
+       find_task_by_pid_type(PIDTYPE_PID, nr)
+
 extern struct task_struct *find_task_by_pid_type(int type, int pid);
 extern void __set_special_pids(pid_t session, pid_t pgrp);
 
 /* per-UID process charging. */
-extern struct user_struct * alloc_uid(uid_t);
+extern struct user_struct * alloc_uid(xid_t, uid_t);
 static inline struct user_struct *get_uid(struct user_struct *u)
 {
        atomic_inc(&u->__count);
diff -NurpP --minimal linux-2.6.22.10/include/linux/shmem_fs.h linux-2.6.22.10-vs2.3.0.29/include/linux/shmem_fs.h
--- linux-2.6.22.10/include/linux/shmem_fs.h    2006-11-30 21:19:39 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/shmem_fs.h 2007-08-05 20:53:13 +0200
@@ -8,6 +8,9 @@
 
 #define SHMEM_NR_DIRECT 16
 
+#define TMPFS_SUPER_MAGIC      0x01021994
+
+
 struct shmem_inode_info {
        spinlock_t              lock;
        unsigned long           flags;
diff -NurpP --minimal linux-2.6.22.10/include/linux/stat.h linux-2.6.22.10-vs2.3.0.29/include/linux/stat.h
--- linux-2.6.22.10/include/linux/stat.h        2007-07-09 13:20:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/stat.h     2007-08-05 20:53:13 +0200
@@ -66,6 +66,7 @@ struct kstat {
        unsigned int    nlink;
        uid_t           uid;
        gid_t           gid;
+       tag_t           tag;
        dev_t           rdev;
        loff_t          size;
        struct timespec  atime;
diff -NurpP --minimal linux-2.6.22.10/include/linux/sunrpc/auth.h linux-2.6.22.10-vs2.3.0.29/include/linux/sunrpc/auth.h
--- linux-2.6.22.10/include/linux/sunrpc/auth.h 2006-11-30 21:19:40 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/sunrpc/auth.h      2007-08-05 20:53:13 +0200
@@ -24,6 +24,7 @@
 struct auth_cred {
        uid_t   uid;
        gid_t   gid;
+       tag_t   tag;
        struct group_info *group_info;
 };
 
diff -NurpP --minimal linux-2.6.22.10/include/linux/sunrpc/clnt.h linux-2.6.22.10-vs2.3.0.29/include/linux/sunrpc/clnt.h
--- linux-2.6.22.10/include/linux/sunrpc/clnt.h 2007-07-09 13:20:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/sunrpc/clnt.h      2007-08-05 20:53:13 +0200
@@ -43,7 +43,8 @@ struct rpc_clnt {
        unsigned int            cl_softrtry : 1,/* soft timeouts */
                                cl_intr     : 1,/* interruptible */
                                cl_discrtry : 1,/* disconnect before retry */
-                               cl_autobind : 1;/* use getport() */
+                               cl_autobind : 1,/* use getport() */
+                               cl_tag      : 1;/* context tagging */
 
        struct rpc_rtt *        cl_rtt;         /* RTO estimator data */
 
diff -NurpP --minimal linux-2.6.22.10/include/linux/syscalls.h linux-2.6.22.10-vs2.3.0.29/include/linux/syscalls.h
--- linux-2.6.22.10/include/linux/syscalls.h    2007-07-09 13:20:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/syscalls.h 2007-08-05 20:53:13 +0200
@@ -294,6 +294,8 @@ asmlinkage long sys_symlink(const char _
 asmlinkage long sys_unlink(const char __user *pathname);
 asmlinkage long sys_rename(const char __user *oldname,
                                const char __user *newname);
+asmlinkage long sys_copyfile(const char __user *from, const char __user *to,
+                               umode_t mode);
 asmlinkage long sys_chmod(const char __user *filename, mode_t mode);
 asmlinkage long sys_fchmod(unsigned int fd, mode_t mode);
 
diff -NurpP --minimal linux-2.6.22.10/include/linux/sysctl.h linux-2.6.22.10-vs2.3.0.29/include/linux/sysctl.h
--- linux-2.6.22.10/include/linux/sysctl.h      2007-07-09 13:20:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/sysctl.h   2007-08-05 20:53:13 +0200
@@ -106,6 +106,7 @@ enum
        KERN_CAP_BSET=14,       /* int: capability bounding set */
        KERN_PANIC=15,          /* int: panic timeout */
        KERN_REALROOTDEV=16,    /* real root device to mount after initrd */
+       KERN_VSHELPER=17,       /* string: path to vshelper policy agent */
 
        KERN_SPARC_REBOOT=21,   /* reboot command on Sparc */
        KERN_CTLALTDEL=22,      /* int: allow ctl-alt-del to reboot */
diff -NurpP --minimal linux-2.6.22.10/include/linux/sysfs.h linux-2.6.22.10-vs2.3.0.29/include/linux/sysfs.h
--- linux-2.6.22.10/include/linux/sysfs.h       2007-07-09 13:20:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/sysfs.h    2007-08-05 20:53:13 +0200
@@ -15,6 +15,8 @@
 #include <linux/list.h>
 #include <asm/atomic.h>
 
+#define SYSFS_SUPER_MAGIC      0x62656572
+
 struct kobject;
 struct module;
 struct nameidata;
diff -NurpP --minimal linux-2.6.22.10/include/linux/time.h linux-2.6.22.10-vs2.3.0.29/include/linux/time.h
--- linux-2.6.22.10/include/linux/time.h        2007-07-09 13:20:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/time.h     2007-08-05 20:53:13 +0200
@@ -176,6 +176,9 @@ static inline void timespec_add_ns(struc
        }
        a->tv_nsec = ns;
 }
+
+#include <linux/vs_time.h>
+
 #endif /* __KERNEL__ */
 
 #define NFDBITS                        __NFDBITS
diff -NurpP --minimal linux-2.6.22.10/include/linux/types.h linux-2.6.22.10-vs2.3.0.29/include/linux/types.h
--- linux-2.6.22.10/include/linux/types.h       2007-02-06 03:01:52 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/types.h    2007-08-05 20:53:13 +0200
@@ -39,6 +39,9 @@ typedef __kernel_uid32_t      uid_t;
 typedef __kernel_gid32_t       gid_t;
 typedef __kernel_uid16_t        uid16_t;
 typedef __kernel_gid16_t        gid16_t;
+typedef unsigned int           xid_t;
+typedef unsigned int           nid_t;
+typedef unsigned int           tag_t;
 
 #ifdef CONFIG_UID16
 /* This is defined by include/asm-{arch}/posix_types.h */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vroot.h linux-2.6.22.10-vs2.3.0.29/include/linux/vroot.h
--- linux-2.6.22.10/include/linux/vroot.h       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vroot.h    2007-08-05 20:53:13 +0200
@@ -0,0 +1,51 @@
+
+/*
+ * include/linux/vroot.h
+ *
+ * written by Herbert Pötzl, 9/11/2002
+ * ported to 2.6 by Herbert Pötzl, 30/12/2004
+ *
+ * Copyright (C) 2002-2007 by Herbert Pötzl.
+ * Redistribution of this file is permitted under the
+ * GNU General Public License.
+ */
+
+#ifndef _LINUX_VROOT_H
+#define _LINUX_VROOT_H
+
+
+#ifdef __KERNEL__
+
+/* Possible states of device */
+enum {
+       Vr_unbound,
+       Vr_bound,
+};
+
+struct vroot_device {
+       int             vr_number;
+       int             vr_refcnt;
+
+       struct semaphore        vr_ctl_mutex;
+       struct block_device    *vr_device;
+       int                     vr_state;
+};
+
+
+typedef struct block_device *(vroot_grb_func)(struct block_device *);
+
+extern int register_vroot_grb(vroot_grb_func *);
+extern int unregister_vroot_grb(vroot_grb_func *);
+
+#endif /* __KERNEL__ */
+
+#define MAX_VROOT_DEFAULT      8
+
+/*
+ * IOCTL commands --- we will commandeer 0x56 ('V')
+ */
+
+#define VROOT_SET_DEV          0x5600
+#define VROOT_CLR_DEV          0x5601
+
+#endif /* _LINUX_VROOT_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_base.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_base.h
--- linux-2.6.22.10/include/linux/vs_base.h     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_base.h  2007-08-05 20:53:13 +0200
@@ -0,0 +1,9 @@
+#ifndef _VS_BASE_H
+#define _VS_BASE_H
+
+#include "vserver/base.h"
+#include "vserver/debug.h"
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_context.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_context.h
--- linux-2.6.22.10/include/linux/vs_context.h  1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_context.h       2007-10-01 14:57:41 +0200
@@ -0,0 +1,224 @@
+#ifndef _VS_CONTEXT_H
+#define _VS_CONTEXT_H
+
+#include "vserver/base.h"
+#include "vserver/context.h"
+#include "vserver/history.h"
+#include "vserver/debug.h"
+
+
+#define get_vx_info(i) __get_vx_info(i, __FILE__, __LINE__, __HERE__)
+
+static inline struct vx_info *__get_vx_info(struct vx_info *vxi,
+       const char *_file, int _line, void *_here)
+{
+       if (!vxi)
+               return NULL;
+
+       vxlprintk(VXD_CBIT(xid, 2), "get_vx_info(%p[#%d.%d])",
+               vxi, vxi ? vxi->vx_id : 0,
+               vxi ? atomic_read(&vxi->vx_usecnt) : 0,
+               _file, _line);
+       __vxh_get_vx_info(vxi, _here);
+
+       atomic_inc(&vxi->vx_usecnt);
+       return vxi;
+}
+
+
+extern void free_vx_info(struct vx_info *);
+
+#define put_vx_info(i) __put_vx_info(i, __FILE__, __LINE__, __HERE__)
+
+static inline void __put_vx_info(struct vx_info *vxi,
+       const char *_file, int _line, void *_here)
+{
+       if (!vxi)
+               return;
+
+       vxlprintk(VXD_CBIT(xid, 2), "put_vx_info(%p[#%d.%d])",
+               vxi, vxi ? vxi->vx_id : 0,
+               vxi ? atomic_read(&vxi->vx_usecnt) : 0,
+               _file, _line);
+       __vxh_put_vx_info(vxi, _here);
+
+       if (atomic_dec_and_test(&vxi->vx_usecnt))
+               free_vx_info(vxi);
+}
+
+
+#define init_vx_info(p, i) \
+       __init_vx_info(p, i, __FILE__, __LINE__, __HERE__)
+
+static inline void __init_vx_info(struct vx_info **vxp, struct vx_info *vxi,
+       const char *_file, int _line, void *_here)
+{
+       if (vxi) {
+               vxlprintk(VXD_CBIT(xid, 3),
+                       "init_vx_info(%p[#%d.%d])",
+                       vxi, vxi ? vxi->vx_id : 0,
+                       vxi ? atomic_read(&vxi->vx_usecnt) : 0,
+                       _file, _line);
+               __vxh_init_vx_info(vxi, vxp, _here);
+
+               atomic_inc(&vxi->vx_usecnt);
+       }
+       *vxp = vxi;
+}
+
+
+#define set_vx_info(p, i) \
+       __set_vx_info(p, i, __FILE__, __LINE__, __HERE__)
+
+static inline void __set_vx_info(struct vx_info **vxp, struct vx_info *vxi,
+       const char *_file, int _line, void *_here)
+{
+       struct vx_info *vxo;
+
+       if (!vxi)
+               return;
+
+       vxlprintk(VXD_CBIT(xid, 3), "set_vx_info(%p[#%d.%d])",
+               vxi, vxi ? vxi->vx_id : 0,
+               vxi ? atomic_read(&vxi->vx_usecnt) : 0,
+               _file, _line);
+       __vxh_set_vx_info(vxi, vxp, _here);
+
+       atomic_inc(&vxi->vx_usecnt);
+       vxo = xchg(vxp, vxi);
+       BUG_ON(vxo);
+}
+
+
+#define clr_vx_info(p) __clr_vx_info(p, __FILE__, __LINE__, __HERE__)
+
+static inline void __clr_vx_info(struct vx_info **vxp,
+       const char *_file, int _line, void *_here)
+{
+       struct vx_info *vxo;
+
+       vxo = xchg(vxp, NULL);
+       if (!vxo)
+               return;
+
+       vxlprintk(VXD_CBIT(xid, 3), "clr_vx_info(%p[#%d.%d])",
+               vxo, vxo ? vxo->vx_id : 0,
+               vxo ? atomic_read(&vxo->vx_usecnt) : 0,
+               _file, _line);
+       __vxh_clr_vx_info(vxo, vxp, _here);
+
+       if (atomic_dec_and_test(&vxo->vx_usecnt))
+               free_vx_info(vxo);
+}
+
+
+#define claim_vx_info(v, p) \
+       __claim_vx_info(v, p, __FILE__, __LINE__, __HERE__)
+
+static inline void __claim_vx_info(struct vx_info *vxi,
+       struct task_struct *task,
+       const char *_file, int _line, void *_here)
+{
+       vxlprintk(VXD_CBIT(xid, 3), "claim_vx_info(%p[#%d.%d.%d]) %p",
+               vxi, vxi ? vxi->vx_id : 0,
+               vxi ? atomic_read(&vxi->vx_usecnt) : 0,
+               vxi ? atomic_read(&vxi->vx_tasks) : 0,
+               task, _file, _line);
+       __vxh_claim_vx_info(vxi, task, _here);
+
+       atomic_inc(&vxi->vx_tasks);
+}
+
+
+extern void unhash_vx_info(struct vx_info *);
+
+#define release_vx_info(v, p) \
+       __release_vx_info(v, p, __FILE__, __LINE__, __HERE__)
+
+static inline void __release_vx_info(struct vx_info *vxi,
+       struct task_struct *task,
+       const char *_file, int _line, void *_here)
+{
+       vxlprintk(VXD_CBIT(xid, 3), "release_vx_info(%p[#%d.%d.%d]) %p",
+               vxi, vxi ? vxi->vx_id : 0,
+               vxi ? atomic_read(&vxi->vx_usecnt) : 0,
+               vxi ? atomic_read(&vxi->vx_tasks) : 0,
+               task, _file, _line);
+       __vxh_release_vx_info(vxi, task, _here);
+
+       might_sleep();
+
+       if (atomic_dec_and_test(&vxi->vx_tasks))
+               unhash_vx_info(vxi);
+}
+
+
+#define task_get_vx_info(p) \
+       __task_get_vx_info(p, __FILE__, __LINE__, __HERE__)
+
+static inline struct vx_info *__task_get_vx_info(struct task_struct *p,
+       const char *_file, int _line, void *_here)
+{
+       struct vx_info *vxi;
+
+       task_lock(p);
+       vxlprintk(VXD_CBIT(xid, 5), "task_get_vx_info(%p)",
+               p, _file, _line);
+       vxi = __get_vx_info(p->vx_info, _file, _line, _here);
+       task_unlock(p);
+       return vxi;
+}
+
+
+static inline void __wakeup_vx_info(struct vx_info *vxi)
+{
+       if (waitqueue_active(&vxi->vx_wait))
+               wake_up_interruptible(&vxi->vx_wait);
+}
+
+
+#define enter_vx_info(v, s) __enter_vx_info(v, s, __FILE__, __LINE__)
+
+static inline void __enter_vx_info(struct vx_info *vxi,
+       struct vx_info_save *vxis, const char *_file, int _line)
+{
+       vxlprintk(VXD_CBIT(xid, 5), "enter_vx_info(%p[#%d],%p) %p[#%d,%p]",
+               vxi, vxi ? vxi->vx_id : 0, vxis, current,
+               current->xid, current->vx_info, _file, _line);
+       vxis->vxi = xchg(&current->vx_info, vxi);
+       vxis->xid = current->xid;
+       current->xid = vxi ? vxi->vx_id : 0;
+}
+
+#define leave_vx_info(s) __leave_vx_info(s, __FILE__, __LINE__)
+
+static inline void __leave_vx_info(struct vx_info_save *vxis,
+       const char *_file, int _line)
+{
+       vxlprintk(VXD_CBIT(xid, 5), "leave_vx_info(%p[#%d,%p]) %p[#%d,%p]",
+               vxis, vxis->xid, vxis->vxi, current,
+               current->xid, current->vx_info, _file, _line);
+       (void)xchg(&current->vx_info, vxis->vxi);
+       current->xid = vxis->xid;
+}
+
+
+static inline void __enter_vx_admin(struct vx_info_save *vxis)
+{
+       vxis->vxi = xchg(&current->vx_info, NULL);
+       vxis->xid = xchg(&current->xid, (xid_t)0);
+}
+
+static inline void __leave_vx_admin(struct vx_info_save *vxis)
+{
+       (void)xchg(&current->xid, vxis->xid);
+       (void)xchg(&current->vx_info, vxis->vxi);
+}
+
+extern void exit_vx_info(struct task_struct *, int);
+extern void exit_vx_info_early(struct task_struct *, int);
+
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_cowbl.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_cowbl.h
--- linux-2.6.22.10/include/linux/vs_cowbl.h    1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_cowbl.h 2007-08-05 20:53:13 +0200
@@ -0,0 +1,44 @@
+#ifndef _VS_COWBL_H
+#define _VS_COWBL_H
+
+#include <linux/fs.h>
+#include <linux/dcache.h>
+#include <linux/namei.h>
+
+extern struct dentry *cow_break_link(const char *pathname);
+
+static inline int cow_check_and_break(struct nameidata *nd)
+{
+       struct inode *inode = nd->dentry->d_inode;
+       int error = 0;
+       if (IS_RDONLY(inode) || MNT_IS_RDONLY(nd->mnt))
+               return -EROFS;
+       if (IS_COW(inode)) {
+               if (IS_COW_LINK(inode)) {
+                       struct dentry *new_dentry, *old_dentry = nd->dentry;
+                       char *path, *buf;
+
+                       buf = kmalloc(PATH_MAX, GFP_KERNEL);
+                       if (!buf) {
+                               return -ENOMEM;
+                       }
+                       path = d_path(nd->dentry, nd->mnt, buf, PATH_MAX);
+                       new_dentry = cow_break_link(path);
+                       kfree(buf);
+                       if (!IS_ERR(new_dentry)) {
+                               nd->dentry = new_dentry;
+                               dput(old_dentry);
+                       } else
+                               error = PTR_ERR(new_dentry);
+               } else {
+                       inode->i_flags &= ~(S_IUNLINK | S_IMMUTABLE);
+                       inode->i_ctime = CURRENT_TIME;
+                       mark_inode_dirty(inode);
+               }
+       }
+       return error;
+}
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_cvirt.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_cvirt.h
--- linux-2.6.22.10/include/linux/vs_cvirt.h    1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_cvirt.h 2007-08-05 20:53:13 +0200
@@ -0,0 +1,49 @@
+#ifndef _VS_CVIRT_H
+#define _VS_CVIRT_H
+
+#include "vserver/cvirt.h"
+#include "vserver/context.h"
+#include "vserver/base.h"
+#include "vserver/debug.h"
+
+
+static inline void vx_activate_task(struct task_struct *p)
+{
+       struct vx_info *vxi;
+
+       if ((vxi = p->vx_info)) {
+               vx_update_load(vxi);
+               atomic_inc(&vxi->cvirt.nr_running);
+       }
+}
+
+static inline void vx_deactivate_task(struct task_struct *p)
+{
+       struct vx_info *vxi;
+
+       if ((vxi = p->vx_info)) {
+               vx_update_load(vxi);
+               atomic_dec(&vxi->cvirt.nr_running);
+       }
+}
+
+static inline void vx_uninterruptible_inc(struct task_struct *p)
+{
+       struct vx_info *vxi;
+
+       if ((vxi = p->vx_info))
+               atomic_inc(&vxi->cvirt.nr_uninterruptible);
+}
+
+static inline void vx_uninterruptible_dec(struct task_struct *p)
+{
+       struct vx_info *vxi;
+
+       if ((vxi = p->vx_info))
+               atomic_dec(&vxi->cvirt.nr_uninterruptible);
+}
+
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_device.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_device.h
--- linux-2.6.22.10/include/linux/vs_device.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_device.h        2007-10-11 01:10:22 +0200
@@ -0,0 +1,45 @@
+#ifndef _VS_DEVICE_H
+#define _VS_DEVICE_H
+
+#include "vserver/base.h"
+#include "vserver/device.h"
+#include "vserver/debug.h"
+
+
+#ifdef CONFIG_VSERVER_DEVICE
+
+int vs_map_device(struct vx_info *, dev_t, dev_t *, umode_t);
+
+#define vs_device_perm(v, d, m, p) \
+       ((vs_map_device(current_vx_info(), d, NULL, m) & (p)) == (p))
+
+#else
+
+static inline
+int vs_map_device(struct vx_info *vxi,
+       dev_t device, dev_t *target, umode_t mode)
+{
+       if (target)
+               *target = device;
+       return ~0;
+}
+
+#define vs_device_perm(v, d, m, p) ((p) == (p))
+
+#endif
+
+
+#define vs_map_chrdev(d, t, p) \
+       ((vs_map_device(current_vx_info(), d, t, S_IFCHR) & (p)) == (p))
+#define vs_map_blkdev(d, t, p) \
+       ((vs_map_device(current_vx_info(), d, t, S_IFBLK) & (p)) == (p))
+
+#define vs_chrdev_perm(d, p) \
+       vs_device_perm(current_vx_info(), d, S_IFCHR, p)
+#define vs_blkdev_perm(d, p) \
+       vs_device_perm(current_vx_info(), d, S_IFBLK, p)
+
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_dlimit.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_dlimit.h
--- linux-2.6.22.10/include/linux/vs_dlimit.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_dlimit.h        2007-08-15 22:04:43 +0200
@@ -0,0 +1,211 @@
+#ifndef _VS_DLIMIT_H
+#define _VS_DLIMIT_H
+
+#include <linux/fs.h>
+
+#include "vserver/dlimit.h"
+#include "vserver/base.h"
+#include "vserver/debug.h"
+
+
+#define get_dl_info(i) __get_dl_info(i, __FILE__, __LINE__)
+
+static inline struct dl_info *__get_dl_info(struct dl_info *dli,
+       const char *_file, int _line)
+{
+       if (!dli)
+               return NULL;
+       vxlprintk(VXD_CBIT(dlim, 4), "get_dl_info(%p[#%d.%d])",
+               dli, dli ? dli->dl_tag : 0,
+               dli ? atomic_read(&dli->dl_usecnt) : 0,
+               _file, _line);
+       atomic_inc(&dli->dl_usecnt);
+       return dli;
+}
+
+
+#define free_dl_info(i) \
+       call_rcu(&(i)->dl_rcu, rcu_free_dl_info)
+
+#define put_dl_info(i) __put_dl_info(i, __FILE__, __LINE__)
+
+static inline void __put_dl_info(struct dl_info *dli,
+       const char *_file, int _line)
+{
+       if (!dli)
+               return;
+       vxlprintk(VXD_CBIT(dlim, 4), "put_dl_info(%p[#%d.%d])",
+               dli, dli ? dli->dl_tag : 0,
+               dli ? atomic_read(&dli->dl_usecnt) : 0,
+               _file, _line);
+       if (atomic_dec_and_test(&dli->dl_usecnt))
+               free_dl_info(dli);
+}
+
+
+#define __dlimit_char(d)       ((d) ? '*' : ' ')
+
+static inline int __dl_alloc_space(struct super_block *sb,
+       tag_t tag, dlsize_t nr, const char *file, int line)
+{
+       struct dl_info *dli = NULL;
+       int ret = 0;
+
+       if (nr == 0)
+               goto out;
+       dli = locate_dl_info(sb, tag);
+       if (!dli)
+               goto out;
+
+       spin_lock(&dli->dl_lock);
+       ret = (dli->dl_space_used + nr > dli->dl_space_total);
+       if (!ret)
+               dli->dl_space_used += nr;
+       spin_unlock(&dli->dl_lock);
+       put_dl_info(dli);
+out:
+       vxlprintk(VXD_CBIT(dlim, 1),
+               "ALLOC (%p,#%d)%c %lld bytes (%d)",
+               sb, tag, __dlimit_char(dli), (long long)nr,
+               ret, file, line);
+       return ret;
+}
+
+static inline void __dl_free_space(struct super_block *sb,
+       tag_t tag, dlsize_t nr, const char *_file, int _line)
+{
+       struct dl_info *dli = NULL;
+
+       if (nr == 0)
+               goto out;
+       dli = locate_dl_info(sb, tag);
+       if (!dli)
+               goto out;
+
+       spin_lock(&dli->dl_lock);
+       if (dli->dl_space_used > nr)
+               dli->dl_space_used -= nr;
+       else
+               dli->dl_space_used = 0;
+       spin_unlock(&dli->dl_lock);
+       put_dl_info(dli);
+out:
+       vxlprintk(VXD_CBIT(dlim, 1),
+               "FREE  (%p,#%d)%c %lld bytes",
+               sb, tag, __dlimit_char(dli), (long long)nr,
+               _file, _line);
+}
+
+static inline int __dl_alloc_inode(struct super_block *sb,
+       tag_t tag, const char *_file, int _line)
+{
+       struct dl_info *dli;
+       int ret = 0;
+
+       dli = locate_dl_info(sb, tag);
+       if (!dli)
+               goto out;
+
+       spin_lock(&dli->dl_lock);
+       ret = (dli->dl_inodes_used >= dli->dl_inodes_total);
+       if (!ret)
+               dli->dl_inodes_used++;
+       spin_unlock(&dli->dl_lock);
+       put_dl_info(dli);
+out:
+       vxlprintk(VXD_CBIT(dlim, 0),
+               "ALLOC (%p,#%d)%c inode (%d)",
+               sb, tag, __dlimit_char(dli), ret, _file, _line);
+       return ret;
+}
+
+static inline void __dl_free_inode(struct super_block *sb,
+       tag_t tag, const char *_file, int _line)
+{
+       struct dl_info *dli;
+
+       dli = locate_dl_info(sb, tag);
+       if (!dli)
+               goto out;
+
+       spin_lock(&dli->dl_lock);
+       if (dli->dl_inodes_used > 1)
+               dli->dl_inodes_used--;
+       else
+               dli->dl_inodes_used = 0;
+       spin_unlock(&dli->dl_lock);
+       put_dl_info(dli);
+out:
+       vxlprintk(VXD_CBIT(dlim, 0),
+               "FREE  (%p,#%d)%c inode",
+               sb, tag, __dlimit_char(dli), _file, _line);
+}
+
+static inline void __dl_adjust_block(struct super_block *sb, tag_t tag,
+       unsigned long long *free_blocks, unsigned long long *root_blocks,
+       const char *_file, int _line)
+{
+       struct dl_info *dli;
+       uint64_t broot, bfree;
+
+       dli = locate_dl_info(sb, tag);
+       if (!dli)
+               return;
+
+       spin_lock(&dli->dl_lock);
+       broot = (dli->dl_space_total -
+               (dli->dl_space_total >> 10) * dli->dl_nrlmult)
+               >> sb->s_blocksize_bits;
+       bfree = (dli->dl_space_total - dli->dl_space_used)
+                       >> sb->s_blocksize_bits;
+       spin_unlock(&dli->dl_lock);
+
+       vxlprintk(VXD_CBIT(dlim, 2),
+               "ADJUST: %lld,%lld on %lld,%lld [mult=%d]",
+               (long long)bfree, (long long)broot,
+               *free_blocks, *root_blocks, dli->dl_nrlmult,
+               _file, _line);
+       if (free_blocks) {
+               if (*free_blocks > bfree)
+                       *free_blocks = bfree;
+       }
+       if (root_blocks) {
+               if (*root_blocks > broot)
+                       *root_blocks = broot;
+       }
+       put_dl_info(dli);
+}
+
+#define DLIMIT_ALLOC_SPACE(in, bytes) \
+       __dl_alloc_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
+               __FILE__, __LINE__ )
+
+#define DLIMIT_FREE_SPACE(in, bytes) \
+       __dl_free_space((in)->i_sb, (in)->i_tag, (dlsize_t)(bytes), \
+               __FILE__, __LINE__ )
+
+#define DLIMIT_ALLOC_BLOCK(in, nr) \
+       __dl_alloc_space((in)->i_sb, (in)->i_tag, \
+               ((dlsize_t)(nr)) << (in)->i_sb->s_blocksize_bits, \
+               __FILE__, __LINE__ )
+
+#define DLIMIT_FREE_BLOCK(in, nr) \
+       __dl_free_space((in)->i_sb, (in)->i_tag, \
+               ((dlsize_t)(nr)) << (in)->i_sb->s_blocksize_bits, \
+               __FILE__, __LINE__ )
+
+
+#define DLIMIT_ALLOC_INODE(in) \
+       __dl_alloc_inode((in)->i_sb, (in)->i_tag, __FILE__, __LINE__ )
+
+#define DLIMIT_FREE_INODE(in) \
+       __dl_free_inode((in)->i_sb, (in)->i_tag, __FILE__, __LINE__ )
+
+
+#define DLIMIT_ADJUST_BLOCK(sb, tag, fb, rb) \
+       __dl_adjust_block(sb, tag, fb, rb, __FILE__, __LINE__ )
+
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_inet.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_inet.h
--- linux-2.6.22.10/include/linux/vs_inet.h     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_inet.h  2007-10-05 15:07:22 +0200
@@ -0,0 +1,341 @@
+#ifndef _VS_INET_H
+#define _VS_INET_H
+
+#include "vserver/base.h"
+#include "vserver/network.h"
+#include "vserver/debug.h"
+
+#define IPI_LOOPBACK   htonl(INADDR_LOOPBACK)
+
+#define NXAV4(a)       NIPQUAD((a)->ip[0]), NIPQUAD((a)->ip[1]), \
+                       NIPQUAD((a)->mask), (a)->type
+#define NXAV4_FMT      "[" NIPQUAD_FMT "-" NIPQUAD_FMT "/" NIPQUAD_FMT ":%04x]"
+
+
+static inline
+int v4_addr_match(struct nx_addr_v4 *nxa, __be32 addr, uint16_t tmask)
+{
+       __be32 ip = nxa->ip[0].s_addr;
+       __be32 mask = nxa->mask.s_addr;
+       __be32 bcast = ip | ~mask;
+       int ret = 0;
+
+       switch (nxa->type & tmask) {
+       case NXA_TYPE_MASK:
+               ret = (ip == (addr & mask));
+               break;
+       case NXA_TYPE_ADDR:
+               ret = 3;
+               if (addr == ip)
+                       break;
+               /* fall through to broadcast */
+       case NXA_MOD_BCAST:
+               ret = ((tmask & NXA_MOD_BCAST) && (addr == bcast));
+               break;
+       case NXA_TYPE_RANGE:
+               ret = ((nxa->ip[0].s_addr <= addr) &&
+                       (nxa->ip[1].s_addr > addr));
+               break;
+       case NXA_TYPE_ANY:
+               ret = 2;
+               break;
+       }
+
+       vxdprintk(VXD_CBIT(net, 0),
+               "v4_addr_match(%p" NXAV4_FMT "," NIPQUAD_FMT ",%04x) = %d",
+               nxa, NXAV4(nxa), NIPQUAD(addr), tmask, ret);
+       return ret;
+}
+
+static inline
+int v4_addr_in_nx_info(struct nx_info *nxi, __be32 addr, uint16_t tmask)
+{
+       struct nx_addr_v4 *nxa;
+       int ret = 1;
+
+       if (!nxi)
+               goto out;
+
+       ret = 2;
+       /* allow 127.0.0.1 when remapping lback */
+       if ((tmask & NXA_LOOPBACK) &&
+               (addr == IPI_LOOPBACK) &&
+               nx_info_flags(nxi, NXF_LBACK_REMAP, 0))
+               goto out;
+       ret = 3;
+       /* check for lback address */
+       if ((tmask & NXA_MOD_LBACK) &&
+               (nxi->v4_lback.s_addr == addr))
+               goto out;
+       ret = 4;
+       /* check for broadcast address */
+       if ((tmask & NXA_MOD_BCAST) &&
+               (nxi->v4_bcast.s_addr == addr))
+               goto out;
+       ret = 5;
+       /* check for v4 addresses */
+       for (nxa = &nxi->v4; nxa; nxa = nxa->next)
+               if (v4_addr_match(nxa, addr, tmask))
+                       goto out;
+       ret = 0;
+out:
+       vxdprintk(VXD_CBIT(net, 0),
+               "v4_addr_in_nx_info(%p[#%u]," NIPQUAD_FMT ",%04x) = %d",
+               nxi, nxi ? nxi->nx_id : 0, NIPQUAD(addr), tmask, ret);
+       return ret;
+}
+
+static inline
+int v4_nx_addr_match(struct nx_addr_v4 *nxa, struct nx_addr_v4 *addr, uint16_t mask)
+{
+       /* FIXME: needs full range checks */
+       return v4_addr_match(nxa, addr->ip[0].s_addr, mask);
+}
+
+static inline
+int v4_nx_addr_in_nx_info(struct nx_info *nxi, struct nx_addr_v4 *nxa, uint16_t mask)
+{
+       struct nx_addr_v4 *ptr;
+
+       for (ptr = &nxi->v4; ptr; ptr = ptr->next)
+               if (v4_nx_addr_match(ptr, nxa, mask))
+                       return 1;
+       return 0;
+}
+
+#include <net/inet_sock.h>
+
+/*
+ *     Check if a given address matches for a socket
+ *
+ *     nxi:            the socket's nx_info if any
+ *     addr:           to be verified address
+ */
+static inline
+int v4_sock_addr_match (
+       struct nx_info *nxi,
+       struct inet_sock *inet,
+       __be32 addr)
+{
+       __be32 saddr = inet->rcv_saddr;
+       __be32 bcast = nxi ? nxi->v4_bcast.s_addr : INADDR_BROADCAST;
+
+       if (addr && (saddr == addr || bcast == addr))
+               return 1;
+       if (!saddr)
+               return v4_addr_in_nx_info(nxi, addr, NXA_MASK_BIND);
+       return 0;
+}
+
+
+/* inet related checks and helpers */
+
+
+struct in_ifaddr;
+struct net_device;
+struct sock;
+
+#ifdef CONFIG_INET
+
+#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
+#include <net/inet_timewait_sock.h>
+
+
+int dev_in_nx_info(struct net_device *, struct nx_info *);
+int v4_dev_in_nx_info(struct net_device *, struct nx_info *);
+int nx_v4_addr_conflict(struct nx_info *, struct nx_info *);
+
+
+/*
+ *     check if address is covered by socket
+ *
+ *     sk:     the socket to check against
+ *     addr:   the address in question (must be != 0)
+ */
+
+static inline
+int __v4_addr_match_socket(const struct sock *sk, struct nx_addr_v4 *nxa)
+{
+       struct nx_info *nxi = sk->sk_nx_info;
+       __be32 saddr = inet_rcv_saddr(sk);
+
+       vxdprintk(VXD_CBIT(net, 5),
+               "__v4_addr_in_socket(%p," NXAV4_FMT ") %p:" NIPQUAD_FMT " %p;%lx",
+               sk, NXAV4(nxa), nxi, NIPQUAD(saddr), sk->sk_socket,
+               (sk->sk_socket?sk->sk_socket->flags:0));
+
+       if (saddr) {            /* direct address match */
+               return v4_addr_match(nxa, saddr, -1);
+       } else if (nxi) {       /* match against nx_info */
+               return v4_nx_addr_in_nx_info(nxi, nxa, -1);
+       } else {                /* unrestricted any socket */
+               return 1;
+       }
+}
+
+
+
+static inline
+int nx_dev_visible(struct nx_info *nxi, struct net_device *dev)
+{
+       vxdprintk(VXD_CBIT(net, 1), "nx_dev_visible(%p[#%u],%p »%s«) %d",
+               nxi, nxi ? nxi->nx_id : 0, dev, dev->name,
+               nxi ? dev_in_nx_info(dev, nxi) : 0);
+
+       if (!nx_info_flags(nxi, NXF_HIDE_NETIF, 0))
+               return 1;
+       if (dev_in_nx_info(dev, nxi))
+               return 1;
+       return 0;
+}
+
+
+static inline
+int v4_ifa_in_nx_info(struct in_ifaddr *ifa, struct nx_info *nxi)
+{
+       if (!nxi)
+               return 1;
+       if (!ifa)
+               return 0;
+       return v4_addr_in_nx_info(nxi, ifa->ifa_local, NXA_MASK_SHOW);
+}
+
+static inline
+int nx_v4_ifa_visible(struct nx_info *nxi, struct in_ifaddr *ifa)
+{
+       vxdprintk(VXD_CBIT(net, 1), "nx_v4_ifa_visible(%p[#%u],%p) %d",
+               nxi, nxi ? nxi->nx_id : 0, ifa,
+               nxi ? v4_ifa_in_nx_info(ifa, nxi) : 0);
+
+       if (!nx_info_flags(nxi, NXF_HIDE_NETIF, 0))
+               return 1;
+       if (v4_ifa_in_nx_info(ifa, nxi))
+               return 1;
+       return 0;
+}
+
+
+struct nx_v4_sock_addr {
+       __be32 saddr;   /* Address used for validation */
+       __be32 baddr;   /* Address used for socket bind */
+};
+
+static inline
+int v4_map_sock_addr(struct inet_sock *inet, struct sockaddr_in *addr,
+       struct nx_v4_sock_addr *nsa)
+{
+       struct sock *sk = &inet->sk;
+       struct nx_info *nxi = sk->sk_nx_info;
+       __be32 saddr = addr->sin_addr.s_addr;
+       __be32 baddr = saddr;
+
+       vxdprintk(VXD_CBIT(net, 3),
+               "inet_bind(%p)* %p,%p;%lx " NIPQUAD_FMT,
+               sk, sk->sk_nx_info, sk->sk_socket,
+               (sk->sk_socket ? sk->sk_socket->flags : 0),
+               NIPQUAD(saddr));
+
+       if (nxi) {
+               if (saddr == INADDR_ANY) {
+                       if (nx_info_flags(nxi, NXF_SINGLE_IP, 0))
+                               baddr = nxi->v4.ip[0].s_addr;
+               } else if (saddr == IPI_LOOPBACK) {
+                       if (nx_info_flags(nxi, NXF_LBACK_REMAP, 0))
+                               baddr = nxi->v4_lback.s_addr;
+               } else {        /* normal address bind */
+                       if (!v4_addr_in_nx_info(nxi, saddr, NXA_MASK_BIND))
+                               return -EADDRNOTAVAIL;
+               }
+       }
+
+       vxdprintk(VXD_CBIT(net, 3),
+               "inet_bind(%p) " NIPQUAD_FMT ", " NIPQUAD_FMT,
+               sk, NIPQUAD(saddr), NIPQUAD(baddr));
+
+       nsa->saddr = saddr;
+       nsa->baddr = baddr;
+       return 0;
+}
+
+static inline
+void v4_set_sock_addr(struct inet_sock *inet, struct nx_v4_sock_addr *nsa)
+{
+       inet->saddr = nsa->baddr;
+       inet->rcv_saddr = nsa->baddr;
+}
+
+
+/*
+ *      helper to simplify inet_lookup_listener
+ *
+ *      nxi:   the socket's nx_info if any
+ *      addr:  to be verified address
+ *      saddr: socket address
+ */
+static inline int v4_inet_addr_match (
+       struct nx_info *nxi,
+       __be32 addr,
+       __be32 saddr)
+{
+       if (addr && (saddr == addr))
+               return 1;
+       if (!saddr)
+               return nxi ? v4_addr_in_nx_info(nxi, addr, NXA_MASK_BIND) : 1;
+       return 0;
+}
+
+static inline __be32 nx_map_sock_lback(struct nx_info *nxi, __be32 addr)
+{
+       if (nx_info_flags(nxi, NXF_HIDE_LBACK, 0) &&
+               (addr == nxi->v4_lback.s_addr))
+               return IPI_LOOPBACK;
+       return addr;
+}
+
+static inline
+int nx_info_has_v4(struct nx_info *nxi)
+{
+       if (!nxi)
+               return 1;
+       if (NX_IPV4(nxi))
+               return 1;
+       if (nx_info_flags(nxi, NXF_LBACK_REMAP, 0))
+               return 1;
+       return 0;
+}
+
+#else /* CONFIG_INET */
+
+static inline
+int nx_dev_visible(struct nx_info *n, struct net_device *d)
+{
+       return 1;
+}
+
+static inline
+int nx_v4_addr_conflict(struct nx_info *n, uint32_t a, const struct sock *s)
+{
+       return 1;
+}
+
+static inline
+int v4_ifa_in_nx_info(struct in_ifaddr *a, struct nx_info *n)
+{
+       return 1;
+}
+
+static inline
+int nx_info_has_v4(struct nx_info *nxi)
+{
+       return 0;
+}
+
+#endif /* CONFIG_INET */
+
+#define current_nx_info_has_v4() \
+       nx_info_has_v4(current_nx_info())
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_inet6.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_inet6.h
--- linux-2.6.22.10/include/linux/vs_inet6.h    1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_inet6.h 2007-10-05 14:54:36 +0200
@@ -0,0 +1,228 @@
+#ifndef _VS_INET6_H
+#define _VS_INET6_H
+
+#include <net/ipv6.h>
+#include "vserver/base.h"
+#include "vserver/network.h"
+#include "vserver/debug.h"
+
+#define NXAV6(a)       NIP6((a)->ip), NIP6((a)->mask), (a)->prefix, (a)->type
+#define NXAV6_FMT      "[" NIP6_FMT "/" NIP6_FMT "/%d:%04x]"
+
+
+#ifdef CONFIG_IPV6
+
+static inline
+int v6_addr_match(struct nx_addr_v6 *nxa,
+       const struct in6_addr *addr, uint16_t mask)
+{
+       switch (nxa->type & mask) {
+       case NXA_TYPE_MASK:
+               return ipv6_masked_addr_cmp(&nxa->ip, &nxa->mask, addr);
+       case NXA_TYPE_ADDR:
+               return ipv6_addr_equal(&nxa->ip, addr);
+       case NXA_TYPE_ANY:
+               return 1;
+       default:
+               return 0;
+       }
+}
+
+static inline
+int v6_addr_in_nx_info(struct nx_info *nxi,
+       const struct in6_addr *addr, uint16_t mask)
+{
+       struct nx_addr_v6 *nxa;
+
+       if (!nxi)
+               return 1;
+       for (nxa = &nxi->v6; nxa; nxa = nxa->next)
+               if (v6_addr_match(nxa, addr, mask))
+                       return 1;
+       return 0;
+}
+
+static inline
+int v6_nx_addr_match(struct nx_addr_v6 *nxa, struct nx_addr_v6 *addr, uint16_t mask)
+{
+       /* FIXME: needs full range checks */
+       return v6_addr_match(nxa, &addr->ip, mask);
+}
+
+static inline
+int v6_nx_addr_in_nx_info(struct nx_info *nxi, struct nx_addr_v6 *nxa, uint16_t mask)
+{
+       struct nx_addr_v6 *ptr;
+
+       for (ptr = &nxi->v6; ptr; ptr = ptr->next)
+               if (v6_nx_addr_match(ptr, nxa, mask))
+                       return 1;
+       return 0;
+}
+
+
+/*
+ *     Check if a given address matches for a socket
+ *
+ *     nxi:            the socket's nx_info if any
+ *     addr:           to be verified address
+ */
+static inline
+int v6_sock_addr_match (
+       struct nx_info *nxi,
+       struct inet_sock *inet,
+       struct in6_addr *addr)
+{
+       struct sock *sk = &inet->sk;
+       struct in6_addr *saddr = inet6_rcv_saddr(sk);
+
+       if (!ipv6_addr_any(addr) &&
+               ipv6_addr_equal(saddr, addr))
+               return 1;
+       if (ipv6_addr_any(saddr))
+               return v6_addr_in_nx_info(nxi, addr, -1);
+       return 0;
+}
+
+/*
+ *     check if address is covered by socket
+ *
+ *     sk:     the socket to check against
+ *     addr:   the address in question (must be != 0)
+ */
+
+static inline
+int __v6_addr_match_socket(const struct sock *sk, struct nx_addr_v6 *nxa)
+{
+       struct nx_info *nxi = sk->sk_nx_info;
+       struct in6_addr *saddr = inet6_rcv_saddr(sk);
+
+       vxdprintk(VXD_CBIT(net, 5),
+               "__v6_addr_in_socket(%p," NXAV6_FMT ") %p:" NIP6_FMT " %p;%lx",
+               sk, NXAV6(nxa), nxi, NIP6(*saddr), sk->sk_socket,
+               (sk->sk_socket?sk->sk_socket->flags:0));
+
+       if (!ipv6_addr_any(saddr)) {    /* direct address match */
+               return v6_addr_match(nxa, saddr, -1);
+       } else if (nxi) {               /* match against nx_info */
+               return v6_nx_addr_in_nx_info(nxi, nxa, -1);
+       } else {                        /* unrestricted any socket */
+               return 1;
+       }
+}
+
+
+/* inet related checks and helpers */
+
+
+struct in_ifaddr;
+struct net_device;
+struct sock;
+
+
+#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
+#include <net/inet_timewait_sock.h>
+
+
+int dev_in_nx_info(struct net_device *, struct nx_info *);
+int v6_dev_in_nx_info(struct net_device *, struct nx_info *);
+int nx_v6_addr_conflict(struct nx_info *, struct nx_info *);
+
+
+
+static inline
+int v6_ifa_in_nx_info(struct inet6_ifaddr *ifa, struct nx_info *nxi)
+{
+       if (!nxi)
+               return 1;
+       if (!ifa)
+               return 0;
+       return v6_addr_in_nx_info(nxi, &ifa->addr, -1);
+}
+
+static inline
+int nx_v6_ifa_visible(struct nx_info *nxi, struct inet6_ifaddr *ifa)
+{
+       if (!nx_info_flags(nxi, NXF_HIDE_NETIF, 0))
+               return 1;
+       if (v6_ifa_in_nx_info(ifa, nxi))
+               return 1;
+       return 0;
+}
+
+
+struct nx_v6_sock_addr {
+       struct in6_addr saddr;  /* Address used for validation */
+       struct in6_addr baddr;  /* Address used for socket bind */
+};
+
+static inline
+int v6_map_sock_addr(struct inet_sock *inet, struct sockaddr_in6 *addr,
+       struct nx_v6_sock_addr *nsa)
+{
+       // struct sock *sk = &inet->sk;
+       // struct nx_info *nxi = sk->sk_nx_info;
+       struct in6_addr saddr = addr->sin6_addr;
+       struct in6_addr baddr = saddr;
+
+       nsa->saddr = saddr;
+       nsa->baddr = baddr;
+       return 0;
+}
+
+static inline
+void v6_set_sock_addr(struct inet_sock *inet, struct nx_v6_sock_addr *nsa)
+{
+       // struct sock *sk = &inet->sk;
+       // struct in6_addr *saddr = inet6_rcv_saddr(sk);
+
+       // *saddr = nsa->baddr;
+       // inet->saddr = nsa->baddr;
+}
+
+static inline
+int nx_info_has_v6(struct nx_info *nxi)
+{
+       if (!nxi)
+               return 1;
+       if (NX_IPV6(nxi))
+               return 1;
+       return 0;
+}
+
+#else /* CONFIG_IPV6 */
+
+static inline
+int nx_v6_dev_visible(struct nx_info *n, struct net_device *d)
+{
+       return 1;
+}
+
+
+static inline
+int nx_v6_addr_conflict(struct nx_info *n, uint32_t a, const struct sock *s)
+{
+       return 1;
+}
+
+static inline
+int v6_ifa_in_nx_info(struct in_ifaddr *a, struct nx_info *n)
+{
+       return 1;
+}
+
+static inline
+int nx_info_has_v6(struct nx_info *nxi)
+{
+       return 0;
+}
+
+#endif /* CONFIG_IPV6 */
+
+#define current_nx_info_has_v6() \
+       nx_info_has_v6(current_nx_info())
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_limit.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_limit.h
--- linux-2.6.22.10/include/linux/vs_limit.h    1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_limit.h 2007-08-05 20:53:13 +0200
@@ -0,0 +1,140 @@
+#ifndef _VS_LIMIT_H
+#define _VS_LIMIT_H
+
+#include "vserver/limit.h"
+#include "vserver/base.h"
+#include "vserver/context.h"
+#include "vserver/debug.h"
+#include "vserver/context.h"
+#include "vserver/limit_int.h"
+
+
+#define vx_acc_cres(v, d, p, r) \
+       __vx_acc_cres(v, r, d, p, __FILE__, __LINE__)
+
+#define vx_acc_cres_cond(x, d, p, r) \
+       __vx_acc_cres(((x) == vx_current_xid()) ? current->vx_info : 0, \
+       r, d, p, __FILE__, __LINE__)
+
+
+#define vx_add_cres(v, a, p, r) \
+       __vx_add_cres(v, r, a, p, __FILE__, __LINE__)
+#define vx_sub_cres(v, a, p, r)                vx_add_cres(v, -(a), p, r)
+
+#define vx_add_cres_cond(x, a, p, r) \
+       __vx_add_cres(((x) == vx_current_xid()) ? current->vx_info : 0, \
+       r, a, p, __FILE__, __LINE__)
+#define vx_sub_cres_cond(x, a, p, r)   vx_add_cres_cond(x, -(a), p, r)
+
+
+/* process and file limits */
+
+#define vx_nproc_inc(p) \
+       vx_acc_cres((p)->vx_info, 1, p, RLIMIT_NPROC)
+
+#define vx_nproc_dec(p) \
+       vx_acc_cres((p)->vx_info,-1, p, RLIMIT_NPROC)
+
+#define vx_files_inc(f) \
+       vx_acc_cres_cond((f)->f_xid, 1, f, RLIMIT_NOFILE)
+
+#define vx_files_dec(f) \
+       vx_acc_cres_cond((f)->f_xid,-1, f, RLIMIT_NOFILE)
+
+#define vx_locks_inc(l) \
+       vx_acc_cres_cond((l)->fl_xid, 1, l, RLIMIT_LOCKS)
+
+#define vx_locks_dec(l) \
+       vx_acc_cres_cond((l)->fl_xid,-1, l, RLIMIT_LOCKS)
+
+#define vx_openfd_inc(f) \
+       vx_acc_cres(current->vx_info, 1, (void *)(long)(f), VLIMIT_OPENFD)
+
+#define vx_openfd_dec(f) \
+       vx_acc_cres(current->vx_info,-1, (void *)(long)(f), VLIMIT_OPENFD)
+
+
+#define vx_cres_avail(v, n, r) \
+       __vx_cres_avail(v, r, n, __FILE__, __LINE__)
+
+
+#define vx_nproc_avail(n) \
+       vx_cres_avail(current->vx_info, n, RLIMIT_NPROC)
+
+#define vx_files_avail(n) \
+       vx_cres_avail(current->vx_info, n, RLIMIT_NOFILE)
+
+#define vx_locks_avail(n) \
+       vx_cres_avail(current->vx_info, n, RLIMIT_LOCKS)
+
+#define vx_openfd_avail(n) \
+       vx_cres_avail(current->vx_info, n, VLIMIT_OPENFD)
+
+
+/* dentry limits */
+
+#define vx_dentry_inc(d) do {                                          \
+       if (atomic_read(&d->d_count) == 1)                              \
+               vx_acc_cres(current->vx_info, 1, d, VLIMIT_DENTRY);     \
+       } while (0)
+
+#define vx_dentry_dec(d) do {                                          \
+       if (atomic_read(&d->d_count) == 0)                              \
+               vx_acc_cres(current->vx_info,-1, d, VLIMIT_DENTRY);     \
+       } while (0)
+
+#define vx_dentry_avail(n) \
+       vx_cres_avail(current->vx_info, n, VLIMIT_DENTRY)
+
+
+/* socket limits */
+
+#define vx_sock_inc(s) \
+       vx_acc_cres((s)->sk_vx_info, 1, s, VLIMIT_NSOCK)
+
+#define vx_sock_dec(s) \
+       vx_acc_cres((s)->sk_vx_info,-1, s, VLIMIT_NSOCK)
+
+#define vx_sock_avail(n) \
+       vx_cres_avail(current->vx_info, n, VLIMIT_NSOCK)
+
+
+/* ipc resource limits */
+
+#define vx_ipcmsg_add(v, u, a) \
+       vx_add_cres(v, a, u, RLIMIT_MSGQUEUE)
+
+#define vx_ipcmsg_sub(v, u, a) \
+       vx_sub_cres(v, a, u, RLIMIT_MSGQUEUE)
+
+#define vx_ipcmsg_avail(v, a) \
+       vx_cres_avail(v, a, RLIMIT_MSGQUEUE)
+
+
+#define vx_ipcshm_add(v, k, a) \
+       vx_add_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM)
+
+#define vx_ipcshm_sub(v, k, a) \
+       vx_sub_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM)
+
+#define vx_ipcshm_avail(v, a) \
+       vx_cres_avail(v, a, VLIMIT_SHMEM)
+
+
+#define vx_semary_inc(a) \
+       vx_acc_cres(current->vx_info, 1, a, VLIMIT_SEMARY)
+
+#define vx_semary_dec(a) \
+       vx_acc_cres(current->vx_info, -1, a, VLIMIT_SEMARY)
+
+
+#define vx_nsems_add(a,n) \
+       vx_add_cres(current->vx_info, n, a, VLIMIT_NSEMS)
+
+#define vx_nsems_sub(a,n) \
+       vx_sub_cres(current->vx_info, n, a, VLIMIT_NSEMS)
+
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_memory.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_memory.h
--- linux-2.6.22.10/include/linux/vs_memory.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_memory.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,159 @@
+#ifndef _VS_MEMORY_H
+#define _VS_MEMORY_H
+
+#include "vserver/limit.h"
+#include "vserver/base.h"
+#include "vserver/context.h"
+#include "vserver/debug.h"
+#include "vserver/context.h"
+#include "vserver/limit_int.h"
+
+
+#define __acc_add_long(a, v)   (*(v) += (a))
+#define __acc_inc_long(v)      (++*(v))
+#define __acc_dec_long(v)      (--*(v))
+
+#if    NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS
+#define __acc_add_atomic(a, v) atomic_long_add(a, v)
+#define __acc_inc_atomic(v)    atomic_long_inc(v)
+#define __acc_dec_atomic(v)    atomic_long_dec(v)
+#else  /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
+#define __acc_add_atomic(a, v) __acc_add_long(a, v)
+#define __acc_inc_atomic(v)    __acc_inc_long(v)
+#define __acc_dec_atomic(v)    __acc_dec_long(v)
+#endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
+
+
+#define vx_acc_page(m, d, v, r) do {                                   \
+       if ((d) > 0)                                                    \
+               __acc_inc_long(&(m)->v);                                \
+       else                                                            \
+               __acc_dec_long(&(m)->v);                                \
+       __vx_acc_cres(m->mm_vx_info, r, d, m, __FILE__, __LINE__);      \
+} while (0)
+
+#define vx_acc_page_atomic(m, d, v, r) do {                            \
+       if ((d) > 0)                                                    \
+               __acc_inc_atomic(&(m)->v);                              \
+       else                                                            \
+               __acc_dec_atomic(&(m)->v);                              \
+       __vx_acc_cres(m->mm_vx_info, r, d, m, __FILE__, __LINE__);      \
+} while (0)
+
+
+#define vx_acc_pages(m, p, v, r) do {                                  \
+       unsigned long __p = (p);                                        \
+       __acc_add_long(__p, &(m)->v);                                   \
+       __vx_add_cres(m->mm_vx_info, r, __p, m, __FILE__, __LINE__);    \
+} while (0)
+
+#define vx_acc_pages_atomic(m, p, v, r) do {                           \
+       unsigned long __p = (p);                                        \
+       __acc_add_atomic(__p, &(m)->v);                                 \
+       __vx_add_cres(m->mm_vx_info, r, __p, m, __FILE__, __LINE__);    \
+} while (0)
+
+
+
+#define vx_acc_vmpage(m, d) \
+       vx_acc_page(m, d, total_vm,  RLIMIT_AS)
+#define vx_acc_vmlpage(m, d) \
+       vx_acc_page(m, d, locked_vm, RLIMIT_MEMLOCK)
+#define vx_acc_file_rsspage(m, d) \
+       vx_acc_page_atomic(m, d, _file_rss, VLIMIT_MAPPED)
+#define vx_acc_anon_rsspage(m, d) \
+       vx_acc_page_atomic(m, d, _anon_rss, VLIMIT_ANON)
+
+#define vx_acc_vmpages(m, p) \
+       vx_acc_pages(m, p, total_vm,  RLIMIT_AS)
+#define vx_acc_vmlpages(m, p) \
+       vx_acc_pages(m, p, locked_vm, RLIMIT_MEMLOCK)
+#define vx_acc_file_rsspages(m, p) \
+       vx_acc_pages_atomic(m, p, _file_rss, VLIMIT_MAPPED)
+#define vx_acc_anon_rsspages(m, p) \
+       vx_acc_pages_atomic(m, p, _anon_rss, VLIMIT_ANON)
+
+#define vx_pages_add(s, r, p)  __vx_add_cres(s, r, p, 0, __FILE__, __LINE__)
+#define vx_pages_sub(s, r, p)  vx_pages_add(s, r, -(p))
+
+#define vx_vmpages_inc(m)              vx_acc_vmpage(m, 1)
+#define vx_vmpages_dec(m)              vx_acc_vmpage(m, -1)
+#define vx_vmpages_add(m, p)           vx_acc_vmpages(m, p)
+#define vx_vmpages_sub(m, p)           vx_acc_vmpages(m, -(p))
+
+#define vx_vmlocked_inc(m)             vx_acc_vmlpage(m, 1)
+#define vx_vmlocked_dec(m)             vx_acc_vmlpage(m, -1)
+#define vx_vmlocked_add(m, p)          vx_acc_vmlpages(m, p)
+#define vx_vmlocked_sub(m, p)          vx_acc_vmlpages(m, -(p))
+
+#define vx_file_rsspages_inc(m)                vx_acc_file_rsspage(m, 1)
+#define vx_file_rsspages_dec(m)                vx_acc_file_rsspage(m, -1)
+#define vx_file_rsspages_add(m, p)     vx_acc_file_rsspages(m, p)
+#define vx_file_rsspages_sub(m, p)     vx_acc_file_rsspages(m, -(p))
+
+#define vx_anon_rsspages_inc(m)                vx_acc_anon_rsspage(m, 1)
+#define vx_anon_rsspages_dec(m)                vx_acc_anon_rsspage(m, -1)
+#define vx_anon_rsspages_add(m, p)     vx_acc_anon_rsspages(m, p)
+#define vx_anon_rsspages_sub(m, p)     vx_acc_anon_rsspages(m, -(p))
+
+
+#define vx_pages_avail(m, p, r) \
+       __vx_cres_avail((m)->mm_vx_info, r, p, __FILE__, __LINE__)
+
+#define vx_vmpages_avail(m, p) vx_pages_avail(m, p, RLIMIT_AS)
+#define vx_vmlocked_avail(m, p)        vx_pages_avail(m, p, RLIMIT_MEMLOCK)
+#define vx_anon_avail(m, p)    vx_pages_avail(m, p, VLIMIT_ANON)
+#define vx_mapped_avail(m, p)  vx_pages_avail(m, p, VLIMIT_MAPPED)
+
+#define vx_rss_avail(m, p) \
+       __vx_cres_array_avail((m)->mm_vx_info, VLA_RSS, p, __FILE__, __LINE__)
+
+
+enum {
+       VXPT_UNKNOWN = 0,
+       VXPT_ANON,
+       VXPT_NONE,
+       VXPT_FILE,
+       VXPT_SWAP,
+       VXPT_WRITE
+};
+
+#if 0
+#define        vx_page_fault(mm, vma, type, ret)
+#else
+
+static inline
+void __vx_page_fault(struct mm_struct *mm,
+       struct vm_area_struct *vma, int type, int ret)
+{
+       struct vx_info *vxi = mm->mm_vx_info;
+       int what;
+/*
+       static char *page_type[6] =
+               { "UNKNOWN", "ANON", "NONE", "FILE", "SWAP", "WRITE" };
+       static char *page_what[4] =
+               { "FAULT_OOM", "FAULT_SIGBUS", "FAULT_MINOR", "FAULT_MAJOR" };
+*/
+
+       if (!vxi)
+               return;
+
+       what = (ret & 0x3);
+
+/*     printk("[%d] page[%d][%d] %2x %s %s\n", vxi->vx_id,
+               type, what, ret, page_type[type], page_what[what]);
+*/
+       if (ret & VM_FAULT_WRITE)
+               what |= 0x4;
+       atomic_inc(&vxi->cacct.page[type][what]);
+}
+
+#define        vx_page_fault(mm, vma, type, ret)       __vx_page_fault(mm, vma, type, ret)
+#endif
+
+
+extern unsigned long vx_badness(struct task_struct *task, struct mm_struct *mm);
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_network.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_network.h
--- linux-2.6.22.10/include/linux/vs_network.h  1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_network.h       2007-08-05 20:53:13 +0200
@@ -0,0 +1,166 @@
+#ifndef _NX_VS_NETWORK_H
+#define _NX_VS_NETWORK_H
+
+#include "vserver/context.h"
+#include "vserver/network.h"
+#include "vserver/base.h"
+#include "vserver/debug.h"
+
+
+#define get_nx_info(i) __get_nx_info(i, __FILE__, __LINE__)
+
+static inline struct nx_info *__get_nx_info(struct nx_info *nxi,
+       const char *_file, int _line)
+{
+       if (!nxi)
+               return NULL;
+
+       vxlprintk(VXD_CBIT(nid, 2), "get_nx_info(%p[#%d.%d])",
+               nxi, nxi ? nxi->nx_id : 0,
+               nxi ? atomic_read(&nxi->nx_usecnt) : 0,
+               _file, _line);
+
+       atomic_inc(&nxi->nx_usecnt);
+       return nxi;
+}
+
+
+extern void free_nx_info(struct nx_info *);
+
+#define put_nx_info(i) __put_nx_info(i, __FILE__, __LINE__)
+
+static inline void __put_nx_info(struct nx_info *nxi, const char *_file, int _line)
+{
+       if (!nxi)
+               return;
+
+       vxlprintk(VXD_CBIT(nid, 2), "put_nx_info(%p[#%d.%d])",
+               nxi, nxi ? nxi->nx_id : 0,
+               nxi ? atomic_read(&nxi->nx_usecnt) : 0,
+               _file, _line);
+
+       if (atomic_dec_and_test(&nxi->nx_usecnt))
+               free_nx_info(nxi);
+}
+
+
+#define init_nx_info(p, i) __init_nx_info(p, i, __FILE__, __LINE__)
+
+static inline void __init_nx_info(struct nx_info **nxp, struct nx_info *nxi,
+               const char *_file, int _line)
+{
+       if (nxi) {
+               vxlprintk(VXD_CBIT(nid, 3),
+                       "init_nx_info(%p[#%d.%d])",
+                       nxi, nxi ? nxi->nx_id : 0,
+                       nxi ? atomic_read(&nxi->nx_usecnt) : 0,
+                       _file, _line);
+
+               atomic_inc(&nxi->nx_usecnt);
+       }
+       *nxp = nxi;
+}
+
+
+#define set_nx_info(p, i) __set_nx_info(p, i, __FILE__, __LINE__)
+
+static inline void __set_nx_info(struct nx_info **nxp, struct nx_info *nxi,
+       const char *_file, int _line)
+{
+       struct nx_info *nxo;
+
+       if (!nxi)
+               return;
+
+       vxlprintk(VXD_CBIT(nid, 3), "set_nx_info(%p[#%d.%d])",
+               nxi, nxi ? nxi->nx_id : 0,
+               nxi ? atomic_read(&nxi->nx_usecnt) : 0,
+               _file, _line);
+
+       atomic_inc(&nxi->nx_usecnt);
+       nxo = xchg(nxp, nxi);
+       BUG_ON(nxo);
+}
+
+#define clr_nx_info(p) __clr_nx_info(p, __FILE__, __LINE__)
+
+static inline void __clr_nx_info(struct nx_info **nxp,
+       const char *_file, int _line)
+{
+       struct nx_info *nxo;
+
+       nxo = xchg(nxp, NULL);
+       if (!nxo)
+               return;
+
+       vxlprintk(VXD_CBIT(nid, 3), "clr_nx_info(%p[#%d.%d])",
+               nxo, nxo ? nxo->nx_id : 0,
+               nxo ? atomic_read(&nxo->nx_usecnt) : 0,
+               _file, _line);
+
+       if (atomic_dec_and_test(&nxo->nx_usecnt))
+               free_nx_info(nxo);
+}
+
+
+#define claim_nx_info(v, p) __claim_nx_info(v, p, __FILE__, __LINE__)
+
+static inline void __claim_nx_info(struct nx_info *nxi,
+       struct task_struct *task, const char *_file, int _line)
+{
+       vxlprintk(VXD_CBIT(nid, 3), "claim_nx_info(%p[#%d.%d.%d]) %p",
+               nxi, nxi ? nxi->nx_id : 0,
+               nxi?atomic_read(&nxi->nx_usecnt):0,
+               nxi?atomic_read(&nxi->nx_tasks):0,
+               task, _file, _line);
+
+       atomic_inc(&nxi->nx_tasks);
+}
+
+
+extern void unhash_nx_info(struct nx_info *);
+
+#define release_nx_info(v, p) __release_nx_info(v, p, __FILE__, __LINE__)
+
+static inline void __release_nx_info(struct nx_info *nxi,
+       struct task_struct *task, const char *_file, int _line)
+{
+       vxlprintk(VXD_CBIT(nid, 3), "release_nx_info(%p[#%d.%d.%d]) %p",
+               nxi, nxi ? nxi->nx_id : 0,
+               nxi ? atomic_read(&nxi->nx_usecnt) : 0,
+               nxi ? atomic_read(&nxi->nx_tasks) : 0,
+               task, _file, _line);
+
+       might_sleep();
+
+       if (atomic_dec_and_test(&nxi->nx_tasks))
+               unhash_nx_info(nxi);
+}
+
+
+#define task_get_nx_info(i)    __task_get_nx_info(i, __FILE__, __LINE__)
+
+static __inline__ struct nx_info *__task_get_nx_info(struct task_struct *p,
+       const char *_file, int _line)
+{
+       struct nx_info *nxi;
+
+       task_lock(p);
+       vxlprintk(VXD_CBIT(nid, 5), "task_get_nx_info(%p)",
+               p, _file, _line);
+       nxi = __get_nx_info(p->nx_info, _file, _line);
+       task_unlock(p);
+       return nxi;
+}
+
+
+static inline void exit_nx_info(struct task_struct *p)
+{
+       if (p->nx_info)
+               release_nx_info(p->nx_info, p);
+}
+
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_pid.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_pid.h
--- linux-2.6.22.10/include/linux/vs_pid.h      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_pid.h   2007-09-05 02:49:29 +0200
@@ -0,0 +1,133 @@
+#ifndef _VS_PID_H
+#define _VS_PID_H
+
+#include "vserver/base.h"
+#include "vserver/context.h"
+#include "vserver/debug.h"
+#include <linux/pid_namespace.h>
+
+
+/* pid faking stuff */
+
+
+#define vx_info_map_pid(v, p) \
+       __vx_info_map_pid((v), (p), __FUNC__, __FILE__, __LINE__)
+#define vx_info_map_tgid(v,p)  vx_info_map_pid(v,p)
+#define vx_map_pid(p) vx_info_map_pid(current->vx_info, p)
+#define vx_map_tgid(p) vx_map_pid(p)
+
+static inline int __vx_info_map_pid(struct vx_info *vxi, int pid,
+       const char *func, const char *file, int line)
+{
+       if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) {
+               vxfprintk(VXD_CBIT(cvirt, 2),
+                       "vx_map_tgid: %p/%llx: %d -> %d",
+                       vxi, (long long)vxi->vx_flags, pid,
+                       (pid && pid == vxi->vx_initpid) ? 1 : pid,
+                       func, file, line);
+               if (pid == 0)
+                       return 0;
+               if (pid == vxi->vx_initpid)
+                       return 1;
+       }
+       return pid;
+}
+
+#define vx_info_rmap_pid(v, p) \
+       __vx_info_rmap_pid((v), (p), __FUNC__, __FILE__, __LINE__)
+#define vx_rmap_pid(p) vx_info_rmap_pid(current->vx_info, p)
+#define vx_rmap_tgid(p) vx_rmap_pid(p)
+
+static inline int __vx_info_rmap_pid(struct vx_info *vxi, int pid,
+       const char *func, const char *file, int line)
+{
+       if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) {
+               vxfprintk(VXD_CBIT(cvirt, 2),
+                       "vx_rmap_tgid: %p/%llx: %d -> %d",
+                       vxi, (long long)vxi->vx_flags, pid,
+                       (pid == 1) ? vxi->vx_initpid : pid,
+                       func, file, line);
+               if ((pid == 1) && vxi->vx_initpid)
+                       return vxi->vx_initpid;
+               if (pid == vxi->vx_initpid)
+                       return ~0U;
+       }
+       return pid;
+}
+
+
+#define VXF_FAKE_INIT  (VXF_INFO_INIT | VXF_STATE_INIT)
+
+static inline
+int vx_proc_task_visible(struct task_struct *task)
+{
+       if ((task->pid == 1) &&
+               !vx_flags(VXF_FAKE_INIT, VXF_FAKE_INIT))
+               /* show a blend through init */
+               goto visible;
+       if (vx_check(vx_task_xid(task), VS_WATCH | VS_IDENT))
+               goto visible;
+       return 0;
+visible:
+       return 1;
+}
+
+static inline
+struct task_struct *vx_find_proc_task_by_pid(int pid)
+{
+       struct task_struct *task = find_task_by_pid(pid);
+
+       if (task && !vx_proc_task_visible(task)) {
+               vxdprintk(VXD_CBIT(misc, 6),
+                       "dropping task (find) %p[#%u,%u] for %p[#%u,%u]",
+                       task, task->xid, task->pid,
+                       current, current->xid, current->pid);
+               task = NULL;
+       }
+       return task;
+}
+
+static inline
+struct task_struct *vx_get_proc_task(struct inode *inode, struct pid *pid)
+{
+       struct task_struct *task = get_pid_task(pid, PIDTYPE_PID);
+
+       if (task && !vx_proc_task_visible(task)) {
+               vxdprintk(VXD_CBIT(misc, 6),
+                       "dropping task (get) %p[#%u,%u] for %p[#%u,%u]",
+                       task, task->xid, task->pid,
+                       current, current->xid, current->pid);
+               put_task_struct(task);
+               task = NULL;
+       }
+       return task;
+}
+
+
+static inline
+struct task_struct *vx_child_reaper(struct task_struct *p)
+{
+       struct vx_info *vxi = p->vx_info;
+       struct task_struct *reaper = child_reaper(p);
+
+       if (!vxi)
+               goto out;
+
+       BUG_ON(!p->vx_info->vx_reaper);
+
+       /* child reaper for the guest reaper */
+       if (vxi->vx_reaper == p)
+               goto out;
+
+       reaper = vxi->vx_reaper;
+out:
+       vxdprintk(VXD_CBIT(xid, 7),
+               "vx_child_reaper(%p[#%u,%u]) = %p[#%u,%u]",
+               p, p->xid, p->pid, reaper, reaper->xid, reaper->pid);
+       return reaper;
+}
+
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_sched.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_sched.h
--- linux-2.6.22.10/include/linux/vs_sched.h    1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_sched.h 2007-08-05 20:53:13 +0200
@@ -0,0 +1,110 @@
+#ifndef _VS_SCHED_H
+#define _VS_SCHED_H
+
+#include "vserver/base.h"
+#include "vserver/context.h"
+#include "vserver/sched.h"
+
+
+#define VAVAVOOM_RATIO          50
+
+#define MAX_PRIO_BIAS           20
+#define MIN_PRIO_BIAS          -20
+
+
+#ifdef CONFIG_VSERVER_HARDCPU
+
+/*
+ * effective_prio - return the priority that is based on the static
+ * priority but is modified by bonuses/penalties.
+ *
+ * We scale the actual sleep average [0 .... MAX_SLEEP_AVG]
+ * into a -4 ... 0 ... +4 bonus/penalty range.
+ *
+ * Additionally, we scale another amount based on the number of
+ * CPU tokens currently held by the context, if the process is
+ * part of a context (and the appropriate SCHED flag is set).
+ * This ranges from -5 ... 0 ... +15, quadratically.
+ *
+ * So, the total bonus is -9 .. 0 .. +19
+ * We use ~50% of the full 0...39 priority range so that:
+ *
+ * 1) nice +19 interactive tasks do not preempt nice 0 CPU hogs.
+ * 2) nice -20 CPU hogs do not get preempted by nice 0 tasks.
+ *    unless that context is far exceeding its CPU allocation.
+ *
+ * Both properties are important to certain workloads.
+ */
+static inline
+int vx_effective_vavavoom(struct _vx_sched_pc *sched_pc, int max_prio)
+{
+       int vavavoom, max;
+
+       /* lots of tokens = lots of vavavoom
+        *      no tokens = no vavavoom      */
+       if ((vavavoom = sched_pc->tokens) >= 0) {
+               max = sched_pc->tokens_max;
+               vavavoom = max - vavavoom;
+               max = max * max;
+               vavavoom = max_prio * VAVAVOOM_RATIO / 100
+                       * (vavavoom*vavavoom - (max >> 2)) / max;
+               return vavavoom;
+       }
+       return 0;
+}
+
+
+static inline
+int vx_adjust_prio(struct task_struct *p, int prio, int max_user)
+{
+       struct vx_info *vxi = p->vx_info;
+       struct _vx_sched_pc *sched_pc;
+
+       if (!vxi)
+               return prio;
+
+       sched_pc = &vx_cpu(vxi, sched_pc);
+       if (vx_info_flags(vxi, VXF_SCHED_PRIO, 0)) {
+               int vavavoom = vx_effective_vavavoom(sched_pc, max_user);
+
+               sched_pc->vavavoom = vavavoom;
+               prio += vavavoom;
+       }
+       prio += sched_pc->prio_bias;
+       return prio;
+}
+
+#else /* !CONFIG_VSERVER_HARDCPU */
+
+static inline
+int vx_adjust_prio(struct task_struct *p, int prio, int max_user)
+{
+       struct vx_info *vxi = p->vx_info;
+
+       if (vxi)
+               prio += vx_cpu(vxi, sched_pc).prio_bias;
+       return prio;
+}
+
+#endif /* CONFIG_VSERVER_HARDCPU */
+
+
+static inline void vx_account_user(struct vx_info *vxi,
+       cputime_t cputime, int nice)
+{
+       if (!vxi)
+               return;
+       vx_cpu(vxi, sched_pc).user_ticks += cputime;
+}
+
+static inline void vx_account_system(struct vx_info *vxi,
+       cputime_t cputime, int idle)
+{
+       if (!vxi)
+               return;
+       vx_cpu(vxi, sched_pc).sys_ticks += cputime;
+}
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_socket.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_socket.h
--- linux-2.6.22.10/include/linux/vs_socket.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_socket.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,80 @@
+#ifndef _VS_SOCKET_H
+#define _VS_SOCKET_H
+
+#include "vserver/debug.h"
+#include "vserver/base.h"
+#include "vserver/cacct.h"
+#include "vserver/context.h"
+#include "vserver/tag.h"
+
+
+/* socket accounting */
+
+#include <linux/socket.h>
+
+static inline int vx_sock_type(int family)
+{
+       switch (family) {
+       case PF_UNSPEC:
+               return VXA_SOCK_UNSPEC;
+       case PF_UNIX:
+               return VXA_SOCK_UNIX;
+       case PF_INET:
+               return VXA_SOCK_INET;
+       case PF_INET6:
+               return VXA_SOCK_INET6;
+       case PF_PACKET:
+               return VXA_SOCK_PACKET;
+       default:
+               return VXA_SOCK_OTHER;
+       }
+}
+
+#define vx_acc_sock(v, f, p, s) \
+       __vx_acc_sock(v, f, p, s, __FILE__, __LINE__)
+
+static inline void __vx_acc_sock(struct vx_info *vxi,
+       int family, int pos, int size, char *file, int line)
+{
+       if (vxi) {
+               int type = vx_sock_type(family);
+
+               atomic_long_inc(&vxi->cacct.sock[type][pos].count);
+               atomic_long_add(size, &vxi->cacct.sock[type][pos].total);
+       }
+}
+
+#define vx_sock_recv(sk, s) \
+       vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 0, s)
+#define vx_sock_send(sk, s) \
+       vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 1, s)
+#define vx_sock_fail(sk, s) \
+       vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 2, s)
+
+
+#define sock_vx_init(s) do {           \
+       (s)->sk_xid = 0;                \
+       (s)->sk_vx_info = NULL;         \
+       } while (0)
+
+#define sock_nx_init(s) do {           \
+       (s)->sk_nid = 0;                \
+       (s)->sk_nx_info = NULL;         \
+       } while (0)
+
+static inline
+int vx_socket_peer_tag(struct socket *sock, int level,
+       char __user *optval, int __user *optlen, int len)
+{
+       struct peer_tag tag;
+
+       tag.xid = sock->sk->sk_xid;
+       tag.nid = sock->sk->sk_nid;
+       if (copy_to_user(optval, &tag, sizeof(tag)))
+               return -EFAULT;
+       return 0;
+}
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_tag.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_tag.h
--- linux-2.6.22.10/include/linux/vs_tag.h      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_tag.h   2007-08-15 19:11:32 +0200
@@ -0,0 +1,43 @@
+#ifndef _VS_TAG_H
+#define _VS_TAG_H
+
+#include <linux/vserver/tag.h>
+
+/* check conditions */
+
+#define DX_ADMIN       0x0001
+#define DX_WATCH       0x0002
+#define DX_HOSTID      0x0008
+
+#define DX_IDENT       0x0010
+
+#define DX_ARG_MASK    0x0010
+
+
+#define dx_task_tag(t) ((t)->tag)
+
+#define dx_current_tag() dx_task_tag(current)
+
+#define dx_check(c, m) __dx_check(dx_current_tag(), c, m)
+
+#define dx_weak_check(c, m)    ((m) ? dx_check(c, m) : 1)
+
+
+/*
+ * check current context for ADMIN/WATCH and
+ * optionally against supplied argument
+ */
+static inline int __dx_check(tag_t cid, tag_t id, unsigned int mode)
+{
+       if (mode & DX_ARG_MASK) {
+               if ((mode & DX_IDENT) && (id == cid))
+                       return 1;
+       }
+       return (((mode & DX_ADMIN) && (cid == 0)) ||
+               ((mode & DX_WATCH) && (cid == 1)) ||
+               ((mode & DX_HOSTID) && (id == 0)));
+}
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vs_time.h linux-2.6.22.10-vs2.3.0.29/include/linux/vs_time.h
--- linux-2.6.22.10/include/linux/vs_time.h     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vs_time.h  2007-08-05 20:53:13 +0200
@@ -0,0 +1,19 @@
+#ifndef _VS_TIME_H
+#define _VS_TIME_H
+
+
+/* time faking stuff */
+
+#ifdef CONFIG_VSERVER_VTIME
+
+extern void vx_gettimeofday(struct timeval *tv);
+extern int vx_settimeofday(struct timespec *ts);
+
+#else
+#define        vx_gettimeofday(t)      do_gettimeofday(t)
+#define        vx_settimeofday(t)      do_settimeofday(t)
+#endif
+
+#else
+#warning duplicate inclusion
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/Kbuild linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/Kbuild
--- linux-2.6.22.10/include/linux/vserver/Kbuild        1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/Kbuild     2007-10-11 01:10:22 +0200
@@ -0,0 +1,8 @@
+
+unifdef-y += context_cmd.h network_cmd.h space_cmd.h \
+       cacct_cmd.h cvirt_cmd.h limit_cmd.h dlimit_cmd.h \
+       inode_cmd.h tag_cmd.h sched_cmd.h signal_cmd.h \
+       debug_cmd.h device_cmd.h
+
+unifdef-y += switch.h network.h monitor.h inode.h device.h
+
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/base.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/base.h
--- linux-2.6.22.10/include/linux/vserver/base.h        1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/base.h     2007-09-17 14:07:30 +0200
@@ -0,0 +1,218 @@
+#ifndef _VX_BASE_H
+#define _VX_BASE_H
+
+
+/* context state changes */
+
+enum {
+       VSC_STARTUP = 1,
+       VSC_SHUTDOWN,
+
+       VSC_NETUP,
+       VSC_NETDOWN,
+};
+
+
+#define MAX_S_CONTEXT  65535   /* Arbitrary limit */
+
+/* check conditions */
+
+#define VS_ADMIN       0x0001
+#define VS_WATCH       0x0002
+#define VS_HIDE                0x0004
+#define VS_HOSTID      0x0008
+
+#define VS_IDENT       0x0010
+#define VS_EQUIV       0x0020
+#define VS_PARENT      0x0040
+#define VS_CHILD       0x0080
+
+#define VS_ARG_MASK    0x00F0
+
+#ifdef CONFIG_VSERVER_PRIVACY
+#define VS_ADMIN_P     (0)
+#define VS_WATCH_P     (0)
+#else
+#define VS_ADMIN_P     VS_ADMIN
+#define VS_WATCH_P     VS_WATCH
+#endif
+
+#define VS_HARDIRQ     0x1000
+#define VS_SOFTIRQ     0x2000
+#define VS_IRQ         0x4000
+
+#define VS_IRQ_MASK    0xF000
+
+#include <linux/hardirq.h>
+
+/*
+ * check current context for ADMIN/WATCH and
+ * optionally against supplied argument
+ */
+static inline int __vs_check(int cid, int id, unsigned int mode)
+{
+       if (mode & VS_ARG_MASK) {
+               if ((mode & VS_IDENT) && (id == cid))
+                       return 1;
+       }
+       if (mode & VS_IRQ_MASK) {
+               if ((mode & VS_IRQ) && unlikely(in_interrupt()))
+                       return 1;
+               if ((mode & VS_HARDIRQ) && unlikely(in_irq()))
+                       return 1;
+               if ((mode & VS_SOFTIRQ) && unlikely(in_softirq()))
+                       return 1;
+       }
+       return (((mode & VS_ADMIN) && (cid == 0)) ||
+               ((mode & VS_WATCH) && (cid == 1)) ||
+               ((mode & VS_HOSTID) && (id == 0)));
+}
+
+#define vx_task_xid(t) ((t)->xid)
+
+#define vx_current_xid() vx_task_xid(current)
+
+#define current_vx_info() (current->vx_info)
+
+
+#define vx_check(c, m) __vs_check(vx_current_xid(), c, (m) | VS_IRQ)
+
+#define vx_weak_check(c, m)    ((m) ? vx_check(c, m) : 1)
+
+
+#define nx_task_nid(t) ((t)->nid)
+
+#define nx_current_nid() nx_task_nid(current)
+
+#define current_nx_info() (current->nx_info)
+
+
+#define nx_check(c, m) __vs_check(nx_current_nid(), c, m)
+
+#define nx_weak_check(c, m)    ((m) ? nx_check(c, m) : 1)
+
+
+
+/* generic flag merging */
+
+#define vs_check_flags(v, m, f)        (((v) & (m)) ^ (f))
+
+#define vs_mask_flags(v, f, m) (((v) & ~(m)) | ((f) & (m)))
+
+#define vs_mask_mask(v, f, m)  (((v) & ~(m)) | ((v) & (f) & (m)))
+
+#define vs_check_bit(v, n)     ((v) & (1LL << (n)))
+
+
+/* context flags */
+
+#define __vx_flags(v)  ((v) ? (v)->vx_flags : 0)
+
+#define vx_current_flags()     __vx_flags(current->vx_info)
+
+#define vx_info_flags(v, m, f) \
+       vs_check_flags(__vx_flags(v), m, f)
+
+#define task_vx_flags(t, m, f) \
+       ((t) && vx_info_flags((t)->vx_info, m, f))
+
+#define vx_flags(m, f) vx_info_flags(current->vx_info, m, f)
+
+
+/* context caps */
+
+#define __vx_ccaps(v)  ((v) ? (v)->vx_ccaps : 0)
+
+#define vx_current_ccaps()     __vx_ccaps(current->vx_info)
+
+#define vx_info_ccaps(v, c)    (__vx_ccaps(v) & (c))
+
+#define vx_ccaps(c)    vx_info_ccaps(current->vx_info, (c))
+
+
+
+/* network flags */
+
+#define __nx_flags(n)  ((n) ? (n)->nx_flags : 0)
+
+#define nx_current_flags()     __nx_flags(current->nx_info)
+
+#define nx_info_flags(n, m, f) \
+       vs_check_flags(__nx_flags(n), m, f)
+
+#define task_nx_flags(t, m, f) \
+       ((t) && nx_info_flags((t)->nx_info, m, f))
+
+#define nx_flags(m, f) nx_info_flags(current->nx_info, m, f)
+
+
+/* network caps */
+
+#define __nx_ncaps(n)  ((n) ? (n)->nx_ncaps : 0)
+
+#define nx_current_ncaps()     __nx_ncaps(current->nx_info)
+
+#define nx_info_ncaps(n, c)    (__nx_ncaps(n) & (c))
+
+#define nx_ncaps(c)    nx_info_ncaps(current->nx_info, c)
+
+
+/* context mask capabilities */
+
+#define __vx_mcaps(v)  ((v) ? (v)->vx_ccaps >> 32UL : ~0 )
+
+#define vx_info_mcaps(v, c)    (__vx_mcaps(v) & (c))
+
+#define vx_mcaps(c)    vx_info_mcaps(current->vx_info, c)
+
+
+/* context bcap mask */
+
+#define __vx_bcaps(v)  ((v) ? (v)->vx_bcaps : ~0 )
+
+#define vx_current_bcaps()     __vx_bcaps(current->vx_info)
+
+#define vx_info_bcaps(v, c)    (__vx_bcaps(v) & (c))
+
+#define vx_bcaps(c)    vx_info_bcaps(current->vx_info, c)
+
+
+#define vx_info_cap_bset(v)    ((v) ? (v)->vx_cap_bset : cap_bset)
+
+#define vx_current_cap_bset()  vx_info_cap_bset(current->vx_info)
+
+
+#define __vx_info_mbcap(v, b) \
+       (!vx_info_flags(v, VXF_STATE_SETUP, 0) ? \
+       vx_info_bcaps(v, b) : (b))
+
+#define vx_info_mbcap(v, b)    __vx_info_mbcap(v, cap_t(b))
+
+#define task_vx_mbcap(t, b) \
+       vx_info_mbcap((t)->vx_info, (t)->b)
+
+#define vx_mbcap(b)    task_vx_mbcap(current, b)
+
+#define vx_cap_raised(v, c, f) (vx_info_mbcap(v, c) & CAP_TO_MASK(f))
+
+#define vx_capable(b, c) (capable(b) || \
+       (cap_raised(current->cap_effective, b) && vx_ccaps(c)))
+
+#define nx_capable(b, c) (capable(b) || \
+       (cap_raised(current->cap_effective, b) && nx_ncaps(c)))
+
+#define vx_current_initpid(n) \
+       (current->vx_info && \
+       (current->vx_info->vx_initpid == (n)))
+
+
+#define __vx_state(v)  ((v) ? ((v)->vx_state) : 0)
+
+#define vx_info_state(v, m)    (__vx_state(v) & (m))
+
+
+#define __nx_state(n)  ((n) ? ((n)->nx_state) : 0)
+
+#define nx_info_state(n, m)    (__nx_state(n) & (m))
+
+#endif
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/cacct.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cacct.h
--- linux-2.6.22.10/include/linux/vserver/cacct.h       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cacct.h    2007-08-05 20:53:13 +0200
@@ -0,0 +1,15 @@
+#ifndef _VX_CACCT_H
+#define _VX_CACCT_H
+
+
+enum sock_acc_field {
+       VXA_SOCK_UNSPEC = 0,
+       VXA_SOCK_UNIX,
+       VXA_SOCK_INET,
+       VXA_SOCK_INET6,
+       VXA_SOCK_PACKET,
+       VXA_SOCK_OTHER,
+       VXA_SOCK_SIZE   /* array size */
+};
+
+#endif /* _VX_CACCT_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/cacct_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cacct_cmd.h
--- linux-2.6.22.10/include/linux/vserver/cacct_cmd.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cacct_cmd.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,23 @@
+#ifndef _VX_CACCT_CMD_H
+#define _VX_CACCT_CMD_H
+
+
+/* virtual host info name commands */
+
+#define VCMD_sock_stat         VC_CMD(VSTAT, 5, 0)
+
+struct vcmd_sock_stat_v0 {
+       uint32_t field;
+       uint32_t count[3];
+       uint64_t total[3];
+};
+
+
+#ifdef __KERNEL__
+
+#include <linux/compiler.h>
+
+extern int vc_sock_stat(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+#endif /* _VX_CACCT_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/cacct_def.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cacct_def.h
--- linux-2.6.22.10/include/linux/vserver/cacct_def.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cacct_def.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,43 @@
+#ifndef _VX_CACCT_DEF_H
+#define _VX_CACCT_DEF_H
+
+#include <asm/atomic.h>
+#include <linux/vserver/cacct.h>
+
+
+struct _vx_sock_acc {
+       atomic_long_t count;
+       atomic_long_t total;
+};
+
+/* context sub struct */
+
+struct _vx_cacct {
+       struct _vx_sock_acc sock[VXA_SOCK_SIZE][3];
+       atomic_t slab[8];
+       atomic_t page[6][8];
+};
+
+#ifdef CONFIG_VSERVER_DEBUG
+
+static inline void __dump_vx_cacct(struct _vx_cacct *cacct)
+{
+       int i, j;
+
+       printk("\t_vx_cacct:");
+       for (i = 0; i < 6; i++) {
+               struct _vx_sock_acc *ptr = cacct->sock[i];
+
+               printk("\t [%d] =", i);
+               for (j = 0; j < 3; j++) {
+                       printk(" [%d] = %8lu, %8lu", j,
+                               atomic_long_read(&ptr[j].count),
+                               atomic_long_read(&ptr[j].total));
+               }
+               printk("\n");
+       }
+}
+
+#endif
+
+#endif /* _VX_CACCT_DEF_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/cacct_int.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cacct_int.h
--- linux-2.6.22.10/include/linux/vserver/cacct_int.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cacct_int.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,21 @@
+#ifndef _VX_CACCT_INT_H
+#define _VX_CACCT_INT_H
+
+
+#ifdef __KERNEL__
+
+static inline
+unsigned long vx_sock_count(struct _vx_cacct *cacct, int type, int pos)
+{
+       return atomic_long_read(&cacct->sock[type][pos].count);
+}
+
+
+static inline
+unsigned long vx_sock_total(struct _vx_cacct *cacct, int type, int pos)
+{
+       return atomic_long_read(&cacct->sock[type][pos].total);
+}
+
+#endif /* __KERNEL__ */
+#endif /* _VX_CACCT_INT_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/context.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/context.h
--- linux-2.6.22.10/include/linux/vserver/context.h     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/context.h  2007-10-11 01:10:22 +0200
@@ -0,0 +1,176 @@
+#ifndef _VX_CONTEXT_H
+#define _VX_CONTEXT_H
+
+#include <linux/types.h>
+#include <linux/capability.h>
+
+
+/* context flags */
+
+#define VXF_INFO_SCHED         0x00000002
+#define VXF_INFO_NPROC         0x00000004
+#define VXF_INFO_PRIVATE       0x00000008
+
+#define VXF_INFO_INIT          0x00000010
+#define VXF_INFO_HIDE          0x00000020
+#define VXF_INFO_ULIMIT                0x00000040
+#define VXF_INFO_NSPACE                0x00000080
+
+#define VXF_SCHED_HARD         0x00000100
+#define VXF_SCHED_PRIO         0x00000200
+#define VXF_SCHED_PAUSE                0x00000400
+
+#define VXF_VIRT_MEM           0x00010000
+#define VXF_VIRT_UPTIME                0x00020000
+#define VXF_VIRT_CPU           0x00040000
+#define VXF_VIRT_LOAD          0x00080000
+#define VXF_VIRT_TIME          0x00100000
+
+#define VXF_HIDE_MOUNT         0x01000000
+/* was VXF_HIDE_NETIF          0x02000000 */
+#define VXF_HIDE_VINFO         0x04000000
+
+#define VXF_STATE_SETUP                (1ULL << 32)
+#define VXF_STATE_INIT         (1ULL << 33)
+#define VXF_STATE_ADMIN                (1ULL << 34)
+
+#define VXF_SC_HELPER          (1ULL << 36)
+#define VXF_REBOOT_KILL                (1ULL << 37)
+#define VXF_PERSISTENT         (1ULL << 38)
+
+#define VXF_FORK_RSS           (1ULL << 48)
+#define VXF_PROLIFIC           (1ULL << 49)
+
+#define VXF_IGNEG_NICE         (1ULL << 52)
+
+#define VXF_ONE_TIME           (0x0007ULL << 32)
+
+#define VXF_INIT_SET           (VXF_STATE_SETUP | VXF_STATE_INIT | VXF_STATE_ADMIN)
+
+
+/* context migration */
+
+#define VXM_SET_INIT           0x00000001
+#define VXM_SET_REAPER         0x00000002
+
+/* context caps */
+
+#define VXC_CAP_MASK           0x00000000
+
+#define VXC_SET_UTSNAME                0x00000001
+#define VXC_SET_RLIMIT         0x00000002
+
+/* was VXC_RAW_ICMP            0x00000100 */
+#define VXC_SYSLOG             0x00001000
+
+#define VXC_SECURE_MOUNT       0x00010000
+#define VXC_SECURE_REMOUNT     0x00020000
+#define VXC_BINARY_MOUNT       0x00040000
+
+#define VXC_QUOTA_CTL          0x00100000
+#define VXC_ADMIN_MAPPER       0x00200000
+#define VXC_ADMIN_CLOOP                0x00400000
+
+#define VXC_KTHREAD            0x01000000
+
+
+#ifdef __KERNEL__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/rcupdate.h>
+
+#include "limit_def.h"
+#include "sched_def.h"
+#include "cvirt_def.h"
+#include "cacct_def.h"
+#include "device_def.h"
+
+struct _vx_info_pc {
+       struct _vx_sched_pc sched_pc;
+       struct _vx_cvirt_pc cvirt_pc;
+};
+
+struct vx_info {
+       struct hlist_node vx_hlist;             /* linked list of contexts */
+       xid_t vx_id;                            /* context id */
+       atomic_t vx_usecnt;                     /* usage count */
+       atomic_t vx_tasks;                      /* tasks count */
+       struct vx_info *vx_parent;              /* parent context */
+       int vx_state;                           /* context state */
+
+       unsigned long vx_nsmask;                /* assignment mask */
+       struct nsproxy *vx_nsproxy;             /* private namespace */
+       struct fs_struct *vx_fs;                /* private namespace fs */
+
+       uint64_t vx_flags;                      /* context flags */
+       uint64_t vx_bcaps;                      /* bounding caps (system) */
+       uint64_t vx_ccaps;                      /* context caps (vserver) */
+       kernel_cap_t vx_cap_bset;               /* the guest's bset */
+
+       struct task_struct *vx_reaper;          /* guest reaper process */
+       pid_t vx_initpid;                       /* PID of guest init */
+       int64_t vx_badness_bias;                /* OOM points bias */
+
+       struct _vx_limit limit;                 /* vserver limits */
+       struct _vx_sched sched;                 /* vserver scheduler */
+       struct _vx_cvirt cvirt;                 /* virtual/bias stuff */
+       struct _vx_cacct cacct;                 /* context accounting */
+
+       struct _vx_device dmap;                 /* default device map targets */
+
+#ifndef CONFIG_SMP
+       struct _vx_info_pc info_pc;             /* per cpu data */
+#else
+       struct _vx_info_pc *ptr_pc;             /* per cpu array */
+#endif
+
+       wait_queue_head_t vx_wait;              /* context exit waitqueue */
+       int reboot_cmd;                         /* last sys_reboot() cmd */
+       int exit_code;                          /* last process exit code */
+
+       char vx_name[65];                       /* vserver name */
+};
+
+#ifndef CONFIG_SMP
+#define        vx_ptr_pc(vxi)          (&(vxi)->info_pc)
+#define        vx_per_cpu(vxi, v, id)  vx_ptr_pc(vxi)->v
+#else
+#define        vx_ptr_pc(vxi)          ((vxi)->ptr_pc)
+#define        vx_per_cpu(vxi, v, id)  per_cpu_ptr(vx_ptr_pc(vxi), id)->v
+#endif
+
+#define        vx_cpu(vxi, v)          vx_per_cpu(vxi, v, smp_processor_id())
+
+
+struct vx_info_save {
+       struct vx_info *vxi;
+       xid_t xid;
+};
+
+
+/* status flags */
+
+#define VXS_HASHED     0x0001
+#define VXS_PAUSED     0x0010
+#define VXS_SHUTDOWN   0x0100
+#define VXS_HELPER     0x1000
+#define VXS_RELEASED   0x8000
+
+
+extern void claim_vx_info(struct vx_info *, struct task_struct *);
+extern void release_vx_info(struct vx_info *, struct task_struct *);
+
+extern struct vx_info *lookup_vx_info(int);
+extern struct vx_info *lookup_or_create_vx_info(int);
+
+extern int get_xid_list(int, unsigned int *, int);
+extern int xid_is_hashed(xid_t);
+
+extern int vx_migrate_task(struct task_struct *, struct vx_info *, int);
+
+extern long vs_state_change(struct vx_info *, unsigned int);
+
+
+#endif /* __KERNEL__ */
+#endif /* _VX_CONTEXT_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/context_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/context_cmd.h
--- linux-2.6.22.10/include/linux/vserver/context_cmd.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/context_cmd.h      2007-08-19 00:40:28 +0200
@@ -0,0 +1,128 @@
+#ifndef _VX_CONTEXT_CMD_H
+#define _VX_CONTEXT_CMD_H
+
+
+/* vinfo commands */
+
+#define VCMD_task_xid          VC_CMD(VINFO, 1, 0)
+
+#ifdef __KERNEL__
+extern int vc_task_xid(uint32_t);
+
+#endif /* __KERNEL__ */
+
+#define VCMD_vx_info           VC_CMD(VINFO, 5, 0)
+
+struct vcmd_vx_info_v0 {
+       uint32_t xid;
+       uint32_t initpid;
+       /* more to come */
+};
+
+#ifdef __KERNEL__
+extern int vc_vx_info(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+#define VCMD_ctx_stat          VC_CMD(VSTAT, 0, 0)
+
+struct vcmd_ctx_stat_v0 {
+       uint32_t usecnt;
+       uint32_t tasks;
+       /* more to come */
+};
+
+#ifdef __KERNEL__
+extern int vc_ctx_stat(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+/* context commands */
+
+#define VCMD_ctx_create_v0     VC_CMD(VPROC, 1, 0)
+#define VCMD_ctx_create                VC_CMD(VPROC, 1, 1)
+
+struct vcmd_ctx_create {
+       uint64_t flagword;
+};
+
+#define VCMD_ctx_migrate_v0    VC_CMD(PROCMIG, 1, 0)
+#define VCMD_ctx_migrate       VC_CMD(PROCMIG, 1, 1)
+
+struct vcmd_ctx_migrate {
+       uint64_t flagword;
+};
+
+#ifdef __KERNEL__
+extern int vc_ctx_create(uint32_t, void __user *);
+extern int vc_ctx_migrate(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+
+/* flag commands */
+
+#define VCMD_get_cflags                VC_CMD(FLAGS, 1, 0)
+#define VCMD_set_cflags                VC_CMD(FLAGS, 2, 0)
+
+struct vcmd_ctx_flags_v0 {
+       uint64_t flagword;
+       uint64_t mask;
+};
+
+#ifdef __KERNEL__
+extern int vc_get_cflags(struct vx_info *, void __user *);
+extern int vc_set_cflags(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+
+/* context caps commands */
+
+#define VCMD_get_ccaps         VC_CMD(FLAGS, 3, 1)
+#define VCMD_set_ccaps         VC_CMD(FLAGS, 4, 1)
+
+struct vcmd_ctx_caps_v1 {
+       uint64_t ccaps;
+       uint64_t cmask;
+};
+
+#ifdef __KERNEL__
+extern int vc_get_ccaps(struct vx_info *, void __user *);
+extern int vc_set_ccaps(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+
+/* bcaps commands */
+
+#define VCMD_get_bcaps         VC_CMD(FLAGS, 9, 0)
+#define VCMD_set_bcaps         VC_CMD(FLAGS, 10, 0)
+
+struct vcmd_bcaps {
+       uint64_t bcaps;
+       uint64_t bmask;
+};
+
+#ifdef __KERNEL__
+extern int vc_get_bcaps(struct vx_info *, void __user *);
+extern int vc_set_bcaps(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+
+/* OOM badness */
+
+#define VCMD_get_badness       VC_CMD(MEMCTRL, 5, 0)
+#define VCMD_set_badness       VC_CMD(MEMCTRL, 6, 0)
+
+struct vcmd_badness_v0 {
+       int64_t bias;
+};
+
+#ifdef __KERNEL__
+extern int vc_get_badness(struct vx_info *, void __user *);
+extern int vc_set_badness(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+#endif /* _VX_CONTEXT_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/cvirt.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cvirt.h
--- linux-2.6.22.10/include/linux/vserver/cvirt.h       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cvirt.h    2007-08-05 20:53:13 +0200
@@ -0,0 +1,20 @@
+#ifndef _VX_CVIRT_H
+#define _VX_CVIRT_H
+
+
+#ifdef __KERNEL__
+
+struct timespec;
+
+void vx_vsi_uptime(struct timespec *, struct timespec *);
+
+
+struct vx_info;
+
+void vx_update_load(struct vx_info *);
+
+
+int vx_do_syslog(int, char __user *, int);
+
+#endif /* __KERNEL__ */
+#endif /* _VX_CVIRT_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/cvirt_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cvirt_cmd.h
--- linux-2.6.22.10/include/linux/vserver/cvirt_cmd.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cvirt_cmd.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,53 @@
+#ifndef _VX_CVIRT_CMD_H
+#define _VX_CVIRT_CMD_H
+
+
+/* virtual host info name commands */
+
+#define VCMD_set_vhi_name      VC_CMD(VHOST, 1, 0)
+#define VCMD_get_vhi_name      VC_CMD(VHOST, 2, 0)
+
+struct vcmd_vhi_name_v0 {
+       uint32_t field;
+       char name[65];
+};
+
+
+enum vhi_name_field {
+       VHIN_CONTEXT = 0,
+       VHIN_SYSNAME,
+       VHIN_NODENAME,
+       VHIN_RELEASE,
+       VHIN_VERSION,
+       VHIN_MACHINE,
+       VHIN_DOMAINNAME,
+};
+
+
+#ifdef __KERNEL__
+
+#include <linux/compiler.h>
+
+extern int vc_set_vhi_name(struct vx_info *, void __user *);
+extern int vc_get_vhi_name(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+#define VCMD_virt_stat         VC_CMD(VSTAT, 3, 0)
+
+struct vcmd_virt_stat_v0 {
+       uint64_t offset;
+       uint64_t uptime;
+       uint32_t nr_threads;
+       uint32_t nr_running;
+       uint32_t nr_uninterruptible;
+       uint32_t nr_onhold;
+       uint32_t nr_forks;
+       uint32_t load[3];
+};
+
+#ifdef __KERNEL__
+extern int vc_virt_stat(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+#endif /* _VX_CVIRT_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/cvirt_def.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cvirt_def.h
--- linux-2.6.22.10/include/linux/vserver/cvirt_def.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/cvirt_def.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,81 @@
+#ifndef _VX_CVIRT_DEF_H
+#define _VX_CVIRT_DEF_H
+
+#include <linux/jiffies.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/time.h>
+#include <linux/utsname.h>
+#include <asm/atomic.h>
+
+
+struct _vx_usage_stat {
+       uint64_t user;
+       uint64_t nice;
+       uint64_t system;
+       uint64_t softirq;
+       uint64_t irq;
+       uint64_t idle;
+       uint64_t iowait;
+};
+
+struct _vx_syslog {
+       wait_queue_head_t log_wait;
+       spinlock_t logbuf_lock;         /* lock for the log buffer */
+
+       unsigned long log_start;        /* next char to be read by syslog() */
+       unsigned long con_start;        /* next char to be sent to consoles */
+       unsigned long log_end;  /* most-recently-written-char + 1 */
+       unsigned long logged_chars;     /* #chars since last read+clear operation */
+
+       char log_buf[1024];
+};
+
+
+/* context sub struct */
+
+struct _vx_cvirt {
+       atomic_t nr_threads;            /* number of current threads */
+       atomic_t nr_running;            /* number of running threads */
+       atomic_t nr_uninterruptible;    /* number of uninterruptible threads */
+
+       atomic_t nr_onhold;             /* processes on hold */
+       uint32_t onhold_last;           /* jiffies when put on hold */
+
+       struct timeval bias_tv;         /* time offset to the host */
+       struct timespec bias_idle;
+       struct timespec bias_uptime;    /* context creation point */
+       uint64_t bias_clock;            /* offset in clock_t */
+
+       spinlock_t load_lock;           /* lock for the load averages */
+       atomic_t load_updates;          /* nr of load updates done so far */
+       uint32_t load_last;             /* last time load was calculated */
+       uint32_t load[3];               /* load averages 1,5,15 */
+
+       atomic_t total_forks;           /* number of forks so far */
+
+       struct _vx_syslog syslog;
+};
+
+struct _vx_cvirt_pc {
+       struct _vx_usage_stat cpustat;
+};
+
+
+#ifdef CONFIG_VSERVER_DEBUG
+
+static inline void __dump_vx_cvirt(struct _vx_cvirt *cvirt)
+{
+       printk("\t_vx_cvirt:\n");
+       printk("\t threads: %4d, %4d, %4d, %4d\n",
+               atomic_read(&cvirt->nr_threads),
+               atomic_read(&cvirt->nr_running),
+               atomic_read(&cvirt->nr_uninterruptible),
+               atomic_read(&cvirt->nr_onhold));
+       /* add rest here */
+       printk("\t total_forks = %d\n", atomic_read(&cvirt->total_forks));
+}
+
+#endif
+
+#endif /* _VX_CVIRT_DEF_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/debug.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/debug.h
--- linux-2.6.22.10/include/linux/vserver/debug.h       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/debug.h    2007-10-25 17:05:55 +0200
@@ -0,0 +1,130 @@
+#ifndef _VX_DEBUG_H
+#define _VX_DEBUG_H
+
+
+#define VXD_CBIT(n, m) (vx_debug_ ## n & (1 << (m)))
+#define VXD_CMIN(n, m) (vx_debug_ ## n > (m))
+#define VXD_MASK(n, m) (vx_debug_ ## n & (m))
+
+#define VXD_DEV(d)     (d), (d)->bd_inode->i_ino,              \
+                       imajor((d)->bd_inode), iminor((d)->bd_inode)
+#define VXF_DEV                "%p[%lu,%d:%d]"
+
+
+#define __FUNC__       __func__
+
+
+#define vxd_path(d, m)                                         \
+       ({ static char _buffer[PATH_MAX];                       \
+          d_path(d, m, _buffer, sizeof(_buffer)); })
+
+#define vxd_cond_path(n)                                       \
+       ((n) ? vxd_path((n)->dentry, (n)->mnt) : "<null>" )
+
+
+#ifdef CONFIG_VSERVER_DEBUG
+
+extern unsigned int vx_debug_switch;
+extern unsigned int vx_debug_xid;
+extern unsigned int vx_debug_nid;
+extern unsigned int vx_debug_tag;
+extern unsigned int vx_debug_net;
+extern unsigned int vx_debug_limit;
+extern unsigned int vx_debug_cres;
+extern unsigned int vx_debug_dlim;
+extern unsigned int vx_debug_quota;
+extern unsigned int vx_debug_cvirt;
+extern unsigned int vx_debug_space;
+extern unsigned int vx_debug_misc;
+
+
+#define VX_LOGLEVEL    "vxD: "
+#define VX_PROC_FMT    "%p: "
+#define VX_PROCESS     current
+
+#define vxdprintk(c, f, x...)                                  \
+       do {                                                    \
+               if (c)                                          \
+                       printk(VX_LOGLEVEL VX_PROC_FMT f "\n",  \
+                               VX_PROCESS , ##x);              \
+       } while (0)
+
+#define vxlprintk(c, f, x...)                                  \
+       do {                                                    \
+               if (c)                                          \
+                       printk(VX_LOGLEVEL f " @%s:%d\n", x);   \
+       } while (0)
+
+#define vxfprintk(c, f, x...)                                  \
+       do {                                                    \
+               if (c)                                          \
+                       printk(VX_LOGLEVEL f " %s@%s:%d\n", x); \
+       } while (0)
+
+
+struct vx_info;
+
+void dump_vx_info(struct vx_info *, int);
+void dump_vx_info_inactive(int);
+
+#else  /* CONFIG_VSERVER_DEBUG */
+
+#define vx_debug_switch 0
+#define vx_debug_xid   0
+#define vx_debug_nid   0
+#define vx_debug_tag   0
+#define vx_debug_net   0
+#define vx_debug_limit 0
+#define vx_debug_cres  0
+#define vx_debug_dlim  0
+#define vx_debug_cvirt 0
+
+#define vxdprintk(x...) do { } while (0)
+#define vxlprintk(x...) do { } while (0)
+#define vxfprintk(x...) do { } while (0)
+
+#endif /* CONFIG_VSERVER_DEBUG */
+
+
+#ifdef CONFIG_VSERVER_WARN
+
+#define VX_WARNLEVEL   KERN_WARNING "vxW: "
+#define VX_WARN_TASK   "[»%s«,%u:#%u|%u|%u] "
+#define VX_WARN_XID    "[xid #%u] "
+#define VX_WARN_NID    "[nid #%u] "
+#define VX_WARN_TAG    "[tag #%u] "
+
+#define vxwprintk(c, f, x...)                                  \
+       do {                                                    \
+               if (c)                                          \
+                       printk(VX_WARNLEVEL f "\n", ##x);       \
+       } while (0)
+
+#else  /* CONFIG_VSERVER_WARN */
+
+#define vxwprintk(x...) do { } while (0)
+
+#endif /* CONFIG_VSERVER_WARN */
+
+#define vxwprintk_task(c, f, x...)                             \
+       vxwprintk(c, VX_WARN_TASK f,                            \
+               current->comm, current->pid,                    \
+               current->xid, current->nid, current->tag, ##x)
+#define vxwprintk_xid(c, f, x...)                              \
+       vxwprintk(c, VX_WARN_XID f, current->xid, x)
+#define vxwprintk_nid(c, f, x...)                              \
+       vxwprintk(c, VX_WARN_NID f, current->nid, x)
+#define vxwprintk_tag(c, f, x...)                              \
+       vxwprintk(c, VX_WARN_TAG f, current->tag, x)
+
+#ifdef CONFIG_VSERVER_DEBUG
+#define vxd_assert_lock(l)     assert_spin_locked(l)
+#define vxd_assert(c, f, x...) vxlprintk(!(c), \
+       "assertion [" f "] failed.", ##x, __FILE__, __LINE__)
+#else
+#define vxd_assert_lock(l)     do { } while (0)
+#define vxd_assert(c, f, x...) do { } while (0)
+#endif
+
+
+#endif /* _VX_DEBUG_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/debug_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/debug_cmd.h
--- linux-2.6.22.10/include/linux/vserver/debug_cmd.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/debug_cmd.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,58 @@
+#ifndef _VX_DEBUG_CMD_H
+#define _VX_DEBUG_CMD_H
+
+
+/* debug commands */
+
+#define VCMD_dump_history      VC_CMD(DEBUG, 1, 0)
+
+#define VCMD_read_history      VC_CMD(DEBUG, 5, 0)
+#define VCMD_read_monitor      VC_CMD(DEBUG, 6, 0)
+
+struct  vcmd_read_history_v0 {
+       uint32_t index;
+       uint32_t count;
+       char __user *data;
+};
+
+struct  vcmd_read_monitor_v0 {
+       uint32_t index;
+       uint32_t count;
+       char __user *data;
+};
+
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_COMPAT
+
+#include <asm/compat.h>
+
+struct vcmd_read_history_v0_x32 {
+       uint32_t index;
+       uint32_t count;
+       compat_uptr_t data_ptr;
+};
+
+struct vcmd_read_monitor_v0_x32 {
+       uint32_t index;
+       uint32_t count;
+       compat_uptr_t data_ptr;
+};
+
+#endif  /* CONFIG_COMPAT */
+
+extern int vc_dump_history(uint32_t);
+
+extern int vc_read_history(uint32_t, void __user *);
+extern int vc_read_monitor(uint32_t, void __user *);
+
+#ifdef CONFIG_COMPAT
+
+extern int vc_read_history_x32(uint32_t, void __user *);
+extern int vc_read_monitor_x32(uint32_t, void __user *);
+
+#endif  /* CONFIG_COMPAT */
+
+#endif /* __KERNEL__ */
+#endif /* _VX_DEBUG_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/device.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/device.h
--- linux-2.6.22.10/include/linux/vserver/device.h      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/device.h   2007-10-11 01:10:22 +0200
@@ -0,0 +1,15 @@
+#ifndef _VX_DEVICE_H
+#define _VX_DEVICE_H
+
+
+#define DATTR_CREATE   0x00000001
+#define DATTR_OPEN     0x00000002
+
+#define DATTR_REMAP    0x00000010
+
+#define DATTR_MASK     0x00000013
+
+
+#else  /* _VX_DEVICE_H */
+#warning duplicate inclusion
+#endif /* _VX_DEVICE_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/device_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/device_cmd.h
--- linux-2.6.22.10/include/linux/vserver/device_cmd.h  1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/device_cmd.h       2007-10-11 01:10:22 +0200
@@ -0,0 +1,44 @@
+#ifndef _VX_DEVICE_CMD_H
+#define _VX_DEVICE_CMD_H
+
+
+/*  device vserver commands */
+
+#define VCMD_set_mapping       VC_CMD(DEVICE, 1, 0)
+#define VCMD_unset_mapping     VC_CMD(DEVICE, 2, 0)
+
+struct vcmd_set_mapping_v0 {
+       const char __user *device;
+       const char __user *target;
+       uint32_t flags;
+};
+
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_COMPAT
+
+#include <asm/compat.h>
+
+struct vcmd_set_mapping_v0_x32 {
+       compat_uptr_t device_ptr;
+       compat_uptr_t target_ptr;
+       uint32_t flags;
+};
+
+#endif /* CONFIG_COMPAT */
+
+#include <linux/compiler.h>
+
+extern int vc_set_mapping(struct vx_info *, void __user *);
+extern int vc_unset_mapping(struct vx_info *, void __user *);
+
+#ifdef CONFIG_COMPAT
+
+extern int vc_set_mapping_x32(struct vx_info *, void __user *);
+extern int vc_unset_mapping_x32(struct vx_info *, void __user *);
+
+#endif /* CONFIG_COMPAT */
+
+#endif /* __KERNEL__ */
+#endif /* _VX_DEVICE_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/device_def.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/device_def.h
--- linux-2.6.22.10/include/linux/vserver/device_def.h  1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/device_def.h       2007-10-11 01:10:22 +0200
@@ -0,0 +1,17 @@
+#ifndef _VX_DEVICE_DEF_H
+#define _VX_DEVICE_DEF_H
+
+#include <linux/types.h>
+
+struct vx_dmap_target {
+       dev_t target;
+       uint32_t flags;
+};
+
+struct _vx_device {
+#ifdef CONFIG_VSERVER_DEVICE
+       struct vx_dmap_target targets[2];
+#endif
+};
+
+#endif /* _VX_DEVICE_DEF_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/dlimit.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/dlimit.h
--- linux-2.6.22.10/include/linux/vserver/dlimit.h      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/dlimit.h   2007-08-15 22:03:58 +0200
@@ -0,0 +1,54 @@
+#ifndef _VX_DLIMIT_H
+#define _VX_DLIMIT_H
+
+#include "switch.h"
+
+
+#ifdef __KERNEL__
+
+/*      keep in sync with CDLIM_INFINITY       */
+
+#define DLIM_INFINITY          (~0ULL)
+
+#include <linux/spinlock.h>
+#include <linux/rcupdate.h>
+
+struct super_block;
+
+struct dl_info {
+       struct hlist_node dl_hlist;             /* linked list of contexts */
+       struct rcu_head dl_rcu;                 /* the rcu head */
+       tag_t dl_tag;                           /* context tag */
+       atomic_t dl_usecnt;                     /* usage count */
+       atomic_t dl_refcnt;                     /* reference count */
+
+       struct super_block *dl_sb;              /* associated superblock */
+
+       spinlock_t dl_lock;                     /* protect the values */
+
+       unsigned long long dl_space_used;       /* used space in bytes */
+       unsigned long long dl_space_total;      /* maximum space in bytes */
+       unsigned long dl_inodes_used;           /* used inodes */
+       unsigned long dl_inodes_total;          /* maximum inodes */
+
+       unsigned int dl_nrlmult;                /* non root limit mult */
+};
+
+struct rcu_head;
+
+extern void rcu_free_dl_info(struct rcu_head *);
+extern void unhash_dl_info(struct dl_info *);
+
+extern struct dl_info *locate_dl_info(struct super_block *, tag_t);
+
+
+struct kstatfs;
+
+extern void vx_vsi_statfs(struct super_block *, struct kstatfs *);
+
+typedef uint64_t dlsize_t;
+
+#endif /* __KERNEL__ */
+#else  /* _VX_DLIMIT_H */
+#warning duplicate inclusion
+#endif /* _VX_DLIMIT_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/dlimit_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/dlimit_cmd.h
--- linux-2.6.22.10/include/linux/vserver/dlimit_cmd.h  1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/dlimit_cmd.h       2007-08-05 20:53:13 +0200
@@ -0,0 +1,74 @@
+#ifndef _VX_DLIMIT_CMD_H
+#define _VX_DLIMIT_CMD_H
+
+
+/*  dlimit vserver commands */
+
+#define VCMD_add_dlimit                VC_CMD(DLIMIT, 1, 0)
+#define VCMD_rem_dlimit                VC_CMD(DLIMIT, 2, 0)
+
+#define VCMD_set_dlimit                VC_CMD(DLIMIT, 5, 0)
+#define VCMD_get_dlimit                VC_CMD(DLIMIT, 6, 0)
+
+struct vcmd_ctx_dlimit_base_v0 {
+       const char __user *name;
+       uint32_t flags;
+};
+
+struct vcmd_ctx_dlimit_v0 {
+       const char __user *name;
+       uint32_t space_used;                    /* used space in kbytes */
+       uint32_t space_total;                   /* maximum space in kbytes */
+       uint32_t inodes_used;                   /* used inodes */
+       uint32_t inodes_total;                  /* maximum inodes */
+       uint32_t reserved;                      /* reserved for root in % */
+       uint32_t flags;
+};
+
+#define CDLIM_UNSET            ((uint32_t)0UL)
+#define CDLIM_INFINITY         ((uint32_t)~0UL)
+#define CDLIM_KEEP             ((uint32_t)~1UL)
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_COMPAT
+
+#include <asm/compat.h>
+
+struct vcmd_ctx_dlimit_base_v0_x32 {
+       compat_uptr_t name_ptr;
+       uint32_t flags;
+};
+
+struct vcmd_ctx_dlimit_v0_x32 {
+       compat_uptr_t name_ptr;
+       uint32_t space_used;                    /* used space in kbytes */
+       uint32_t space_total;                   /* maximum space in kbytes */
+       uint32_t inodes_used;                   /* used inodes */
+       uint32_t inodes_total;                  /* maximum inodes */
+       uint32_t reserved;                      /* reserved for root in % */
+       uint32_t flags;
+};
+
+#endif /* CONFIG_COMPAT */
+
+#include <linux/compiler.h>
+
+extern int vc_add_dlimit(uint32_t, void __user *);
+extern int vc_rem_dlimit(uint32_t, void __user *);
+
+extern int vc_set_dlimit(uint32_t, void __user *);
+extern int vc_get_dlimit(uint32_t, void __user *);
+
+#ifdef CONFIG_COMPAT
+
+extern int vc_add_dlimit_x32(uint32_t, void __user *);
+extern int vc_rem_dlimit_x32(uint32_t, void __user *);
+
+extern int vc_set_dlimit_x32(uint32_t, void __user *);
+extern int vc_get_dlimit_x32(uint32_t, void __user *);
+
+#endif /* CONFIG_COMPAT */
+
+#endif /* __KERNEL__ */
+#endif /* _VX_DLIMIT_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/global.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/global.h
--- linux-2.6.22.10/include/linux/vserver/global.h      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/global.h   2007-08-05 20:53:13 +0200
@@ -0,0 +1,18 @@
+#ifndef _VX_GLOBAL_H
+#define _VX_GLOBAL_H
+
+
+extern atomic_t vx_global_ctotal;
+extern atomic_t vx_global_cactive;
+
+extern atomic_t nx_global_ctotal;
+extern atomic_t nx_global_cactive;
+
+extern atomic_t vs_global_nsproxy;
+extern atomic_t vs_global_fs;
+extern atomic_t vs_global_mnt_ns;
+extern atomic_t vs_global_uts_ns;
+extern atomic_t vs_global_ipc_ns;
+
+
+#endif /* _VX_GLOBAL_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/history.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/history.h
--- linux-2.6.22.10/include/linux/vserver/history.h     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/history.h  2007-08-05 20:53:13 +0200
@@ -0,0 +1,197 @@
+#ifndef _VX_HISTORY_H
+#define _VX_HISTORY_H
+
+
+enum {
+       VXH_UNUSED = 0,
+       VXH_THROW_OOPS = 1,
+
+       VXH_GET_VX_INFO,
+       VXH_PUT_VX_INFO,
+       VXH_INIT_VX_INFO,
+       VXH_SET_VX_INFO,
+       VXH_CLR_VX_INFO,
+       VXH_CLAIM_VX_INFO,
+       VXH_RELEASE_VX_INFO,
+       VXH_ALLOC_VX_INFO,
+       VXH_DEALLOC_VX_INFO,
+       VXH_HASH_VX_INFO,
+       VXH_UNHASH_VX_INFO,
+       VXH_LOC_VX_INFO,
+       VXH_LOOKUP_VX_INFO,
+       VXH_CREATE_VX_INFO,
+};
+
+struct _vxhe_vxi {
+       struct vx_info *ptr;
+       unsigned xid;
+       unsigned usecnt;
+       unsigned tasks;
+};
+
+struct _vxhe_set_clr {
+       void *data;
+};
+
+struct _vxhe_loc_lookup {
+       unsigned arg;
+};
+
+struct _vx_hist_entry {
+       void *loc;
+       unsigned short seq;
+       unsigned short type;
+       struct _vxhe_vxi vxi;
+       union {
+               struct _vxhe_set_clr sc;
+               struct _vxhe_loc_lookup ll;
+       };
+};
+
+#ifdef CONFIG_VSERVER_HISTORY
+
+extern unsigned volatile int vxh_active;
+
+struct _vx_hist_entry *vxh_advance(void *loc);
+
+
+static inline
+void   __vxh_copy_vxi(struct _vx_hist_entry *entry, struct vx_info *vxi)
+{
+       entry->vxi.ptr = vxi;
+       if (vxi) {
+               entry->vxi.usecnt = atomic_read(&vxi->vx_usecnt);
+               entry->vxi.tasks = atomic_read(&vxi->vx_tasks);
+               entry->vxi.xid = vxi->vx_id;
+       }
+}
+
+
+#define        __HERE__ current_text_addr()
+
+#define __VXH_BODY(__type, __data, __here)     \
+       struct _vx_hist_entry *entry;           \
+                                               \
+       preempt_disable();                      \
+       entry = vxh_advance(__here);            \
+       __data;                                 \
+       entry->type = __type;                   \
+       preempt_enable();
+
+
+       /* pass vxi only */
+
+#define __VXH_SMPL                             \
+       __vxh_copy_vxi(entry, vxi)
+
+static inline
+void   __vxh_smpl(struct vx_info *vxi, int __type, void *__here)
+{
+       __VXH_BODY(__type, __VXH_SMPL, __here)
+}
+
+       /* pass vxi and data (void *) */
+
+#define __VXH_DATA                             \
+       __vxh_copy_vxi(entry, vxi);             \
+       entry->sc.data = data
+
+static inline
+void   __vxh_data(struct vx_info *vxi, void *data,
+                       int __type, void *__here)
+{
+       __VXH_BODY(__type, __VXH_DATA, __here)
+}
+
+       /* pass vxi and arg (long) */
+
+#define __VXH_LONG                             \
+       __vxh_copy_vxi(entry, vxi);             \
+       entry->ll.arg = arg
+
+static inline
+void   __vxh_long(struct vx_info *vxi, long arg,
+                       int __type, void *__here)
+{
+       __VXH_BODY(__type, __VXH_LONG, __here)
+}
+
+
+static inline
+void   __vxh_throw_oops(void *__here)
+{
+       __VXH_BODY(VXH_THROW_OOPS, {}, __here);
+       /* prevent further acquisition */
+       vxh_active = 0;
+}
+
+
+#define vxh_throw_oops()       __vxh_throw_oops(__HERE__);
+
+#define __vxh_get_vx_info(v, h)        __vxh_smpl(v, VXH_GET_VX_INFO, h);
+#define __vxh_put_vx_info(v, h)        __vxh_smpl(v, VXH_PUT_VX_INFO, h);
+
+#define __vxh_init_vx_info(v, d, h) \
+       __vxh_data(v, d, VXH_INIT_VX_INFO, h);
+#define __vxh_set_vx_info(v, d, h) \
+       __vxh_data(v, d, VXH_SET_VX_INFO, h);
+#define __vxh_clr_vx_info(v, d, h) \
+       __vxh_data(v, d, VXH_CLR_VX_INFO, h);
+
+#define __vxh_claim_vx_info(v, d, h) \
+       __vxh_data(v, d, VXH_CLAIM_VX_INFO, h);
+#define __vxh_release_vx_info(v, d, h) \
+       __vxh_data(v, d, VXH_RELEASE_VX_INFO, h);
+
+#define vxh_alloc_vx_info(v) \
+       __vxh_smpl(v, VXH_ALLOC_VX_INFO, __HERE__);
+#define vxh_dealloc_vx_info(v) \
+       __vxh_smpl(v, VXH_DEALLOC_VX_INFO, __HERE__);
+
+#define vxh_hash_vx_info(v) \
+       __vxh_smpl(v, VXH_HASH_VX_INFO, __HERE__);
+#define vxh_unhash_vx_info(v) \
+       __vxh_smpl(v, VXH_UNHASH_VX_INFO, __HERE__);
+
+#define vxh_loc_vx_info(v, l) \
+       __vxh_long(v, l, VXH_LOC_VX_INFO, __HERE__);
+#define vxh_lookup_vx_info(v, l) \
+       __vxh_long(v, l, VXH_LOOKUP_VX_INFO, __HERE__);
+#define vxh_create_vx_info(v, l) \
+       __vxh_long(v, l, VXH_CREATE_VX_INFO, __HERE__);
+
+extern void vxh_dump_history(void);
+
+
+#else  /* CONFIG_VSERVER_HISTORY */
+
+#define        __HERE__        0
+
+#define vxh_throw_oops()               do { } while (0)
+
+#define __vxh_get_vx_info(v, h)                do { } while (0)
+#define __vxh_put_vx_info(v, h)                do { } while (0)
+
+#define __vxh_init_vx_info(v, d, h)    do { } while (0)
+#define __vxh_set_vx_info(v, d, h)     do { } while (0)
+#define __vxh_clr_vx_info(v, d, h)     do { } while (0)
+
+#define __vxh_claim_vx_info(v, d, h)   do { } while (0)
+#define __vxh_release_vx_info(v, d, h) do { } while (0)
+
+#define vxh_alloc_vx_info(v)           do { } while (0)
+#define vxh_dealloc_vx_info(v)         do { } while (0)
+
+#define vxh_hash_vx_info(v)            do { } while (0)
+#define vxh_unhash_vx_info(v)          do { } while (0)
+
+#define vxh_loc_vx_info(v, l)          do { } while (0)
+#define vxh_lookup_vx_info(v, l)       do { } while (0)
+#define vxh_create_vx_info(v, l)       do { } while (0)
+
+#define vxh_dump_history()             do { } while (0)
+
+
+#endif /* CONFIG_VSERVER_HISTORY */
+
+#endif /* _VX_HISTORY_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/inode.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/inode.h
--- linux-2.6.22.10/include/linux/vserver/inode.h       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/inode.h    2007-08-05 20:53:13 +0200
@@ -0,0 +1,38 @@
+#ifndef _VX_INODE_H
+#define _VX_INODE_H
+
+
+#define IATTR_TAG      0x01000000
+
+#define IATTR_ADMIN    0x00000001
+#define IATTR_WATCH    0x00000002
+#define IATTR_HIDE     0x00000004
+#define IATTR_FLAGS    0x00000007
+
+#define IATTR_BARRIER  0x00010000
+#define IATTR_IUNLINK  0x00020000
+#define IATTR_IMMUTABLE 0x00040000
+
+#ifdef __KERNEL__
+
+
+#ifdef CONFIG_VSERVER_PROC_SECURE
+#define IATTR_PROC_DEFAULT     ( IATTR_ADMIN | IATTR_HIDE )
+#define IATTR_PROC_SYMLINK     ( IATTR_ADMIN )
+#else
+#define IATTR_PROC_DEFAULT     ( IATTR_ADMIN )
+#define IATTR_PROC_SYMLINK     ( IATTR_ADMIN )
+#endif
+
+#define vx_hide_check(c, m)    (((m) & IATTR_HIDE) ? vx_check(c, m) : 1)
+
+#endif /* __KERNEL__ */
+
+/* inode ioctls */
+
+#define FIOC_GETXFLG   _IOR('x', 5, long)
+#define FIOC_SETXFLG   _IOW('x', 6, long)
+
+#else  /* _VX_INODE_H */
+#warning duplicate inclusion
+#endif /* _VX_INODE_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/inode_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/inode_cmd.h
--- linux-2.6.22.10/include/linux/vserver/inode_cmd.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/inode_cmd.h        2007-08-15 18:08:31 +0200
@@ -0,0 +1,59 @@
+#ifndef _VX_INODE_CMD_H
+#define _VX_INODE_CMD_H
+
+
+/*  inode vserver commands */
+
+#define VCMD_get_iattr         VC_CMD(INODE, 1, 1)
+#define VCMD_set_iattr         VC_CMD(INODE, 2, 1)
+
+#define VCMD_fget_iattr                VC_CMD(INODE, 3, 0)
+#define VCMD_fset_iattr                VC_CMD(INODE, 4, 0)
+
+struct vcmd_ctx_iattr_v1 {
+       const char __user *name;
+       uint32_t tag;
+       uint32_t flags;
+       uint32_t mask;
+};
+
+struct vcmd_ctx_fiattr_v0 {
+       uint32_t tag;
+       uint32_t flags;
+       uint32_t mask;
+};
+
+
+#ifdef __KERNEL__
+
+
+#ifdef CONFIG_COMPAT
+
+#include <asm/compat.h>
+
+struct vcmd_ctx_iattr_v1_x32 {
+       compat_uptr_t name_ptr;
+       uint32_t tag;
+       uint32_t flags;
+       uint32_t mask;
+};
+
+#endif /* CONFIG_COMPAT */
+
+#include <linux/compiler.h>
+
+extern int vc_get_iattr(void __user *);
+extern int vc_set_iattr(void __user *);
+
+extern int vc_fget_iattr(uint32_t, void __user *);
+extern int vc_fset_iattr(uint32_t, void __user *);
+
+#ifdef CONFIG_COMPAT
+
+extern int vc_get_iattr_x32(void __user *);
+extern int vc_set_iattr_x32(void __user *);
+
+#endif /* CONFIG_COMPAT */
+
+#endif /* __KERNEL__ */
+#endif /* _VX_INODE_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/limit.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/limit.h
--- linux-2.6.22.10/include/linux/vserver/limit.h       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/limit.h    2007-08-15 22:27:29 +0200
@@ -0,0 +1,70 @@
+#ifndef _VX_LIMIT_H
+#define _VX_LIMIT_H
+
+#define VLIMIT_NSOCK   16
+#define VLIMIT_OPENFD  17
+#define VLIMIT_ANON    18
+#define VLIMIT_SHMEM   19
+#define VLIMIT_SEMARY  20
+#define VLIMIT_NSEMS   21
+#define VLIMIT_DENTRY  22
+#define VLIMIT_MAPPED  23
+
+
+#ifdef __KERNEL__
+
+#define        VLIM_NOCHECK    ((1L << VLIMIT_DENTRY) | (1L << RLIMIT_RSS))
+
+/*     keep in sync with CRLIM_INFINITY */
+
+#define        VLIM_INFINITY   (~0ULL)
+
+#include <asm/atomic.h>
+#include <asm/resource.h>
+
+#ifndef RLIM_INFINITY
+#warning RLIM_INFINITY is undefined
+#endif
+
+#define __rlim_val(l, r, v)    ((l)->res[r].v)
+
+#define __rlim_soft(l, r)      __rlim_val(l, r, soft)
+#define __rlim_hard(l, r)      __rlim_val(l, r, hard)
+
+#define __rlim_rcur(l, r)      __rlim_val(l, r, rcur)
+#define __rlim_rmin(l, r)      __rlim_val(l, r, rmin)
+#define __rlim_rmax(l, r)      __rlim_val(l, r, rmax)
+
+#define __rlim_lhit(l, r)      __rlim_val(l, r, lhit)
+#define __rlim_hit(l, r)       atomic_inc(&__rlim_lhit(l, r))
+
+typedef atomic_long_t rlim_atomic_t;
+typedef unsigned long rlim_t;
+
+#define __rlim_get(l, r)       atomic_long_read(&__rlim_rcur(l, r))
+#define __rlim_set(l, r, v)    atomic_long_set(&__rlim_rcur(l, r), v)
+#define __rlim_inc(l, r)       atomic_long_inc(&__rlim_rcur(l, r))
+#define __rlim_dec(l, r)       atomic_long_dec(&__rlim_rcur(l, r))
+#define __rlim_add(l, r, v)    atomic_long_add(v, &__rlim_rcur(l, r))
+#define __rlim_sub(l, r, v)    atomic_long_sub(v, &__rlim_rcur(l, r))
+
+
+#if    (RLIM_INFINITY == VLIM_INFINITY)
+#define        VX_VLIM(r) ((long long)(long)(r))
+#define        VX_RLIM(v) ((rlim_t)(v))
+#else
+#define        VX_VLIM(r) (((r) == RLIM_INFINITY) \
+               ? VLIM_INFINITY : (long long)(r))
+#define        VX_RLIM(v) (((v) == VLIM_INFINITY) \
+               ? RLIM_INFINITY : (rlim_t)(v))
+#endif
+
+struct sysinfo;
+
+void vx_vsi_meminfo(struct sysinfo *);
+void vx_vsi_swapinfo(struct sysinfo *);
+
+#define NUM_LIMITS     24
+
+#endif /* __KERNEL__ */
+#endif /* _VX_LIMIT_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/limit_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/limit_cmd.h
--- linux-2.6.22.10/include/linux/vserver/limit_cmd.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/limit_cmd.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,69 @@
+#ifndef _VX_LIMIT_CMD_H
+#define _VX_LIMIT_CMD_H
+
+
+/*  rlimit vserver commands */
+
+#define VCMD_get_rlimit                VC_CMD(RLIMIT, 1, 0)
+#define VCMD_set_rlimit                VC_CMD(RLIMIT, 2, 0)
+#define VCMD_get_rlimit_mask   VC_CMD(RLIMIT, 3, 0)
+#define VCMD_reset_minmax      VC_CMD(RLIMIT, 9, 0)
+
+struct vcmd_ctx_rlimit_v0 {
+       uint32_t id;
+       uint64_t minimum;
+       uint64_t softlimit;
+       uint64_t maximum;
+};
+
+struct vcmd_ctx_rlimit_mask_v0 {
+       uint32_t minimum;
+       uint32_t softlimit;
+       uint32_t maximum;
+};
+
+#define VCMD_rlimit_stat       VC_CMD(VSTAT, 1, 0)
+
+struct vcmd_rlimit_stat_v0 {
+       uint32_t id;
+       uint32_t hits;
+       uint64_t value;
+       uint64_t minimum;
+       uint64_t maximum;
+};
+
+#define CRLIM_UNSET            (0ULL)
+#define CRLIM_INFINITY         (~0ULL)
+#define CRLIM_KEEP             (~1ULL)
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_IA32_EMULATION
+
+struct vcmd_ctx_rlimit_v0_x32 {
+       uint32_t id;
+       uint64_t minimum;
+       uint64_t softlimit;
+       uint64_t maximum;
+} __attribute__ ((aligned (4)));
+
+#endif /* CONFIG_IA32_EMULATION */
+
+#include <linux/compiler.h>
+
+extern int vc_get_rlimit_mask(uint32_t, void __user *);
+extern int vc_get_rlimit(struct vx_info *, void __user *);
+extern int vc_set_rlimit(struct vx_info *, void __user *);
+extern int vc_reset_minmax(struct vx_info *, void __user *);
+
+extern int vc_rlimit_stat(struct vx_info *, void __user *);
+
+#ifdef CONFIG_IA32_EMULATION
+
+extern int vc_get_rlimit_x32(struct vx_info *, void __user *);
+extern int vc_set_rlimit_x32(struct vx_info *, void __user *);
+
+#endif /* CONFIG_IA32_EMULATION */
+
+#endif /* __KERNEL__ */
+#endif /* _VX_LIMIT_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/limit_def.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/limit_def.h
--- linux-2.6.22.10/include/linux/vserver/limit_def.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/limit_def.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,47 @@
+#ifndef _VX_LIMIT_DEF_H
+#define _VX_LIMIT_DEF_H
+
+#include <asm/atomic.h>
+#include <asm/resource.h>
+
+#include "limit.h"
+
+
+struct _vx_res_limit {
+       rlim_t soft;            /* Context soft limit */
+       rlim_t hard;            /* Context hard limit */
+
+       rlim_atomic_t rcur;     /* Current value */
+       rlim_t rmin;            /* Context minimum */
+       rlim_t rmax;            /* Context maximum */
+
+       atomic_t lhit;          /* Limit hits */
+};
+
+/* context sub struct */
+
+struct _vx_limit {
+       struct _vx_res_limit res[NUM_LIMITS];
+};
+
+#ifdef CONFIG_VSERVER_DEBUG
+
+static inline void __dump_vx_limit(struct _vx_limit *limit)
+{
+       int i;
+
+       printk("\t_vx_limit:");
+       for (i = 0; i < NUM_LIMITS; i++) {
+               printk("\t [%2d] = %8lu %8lu/%8lu, %8ld/%8ld, %8d\n",
+                       i, (unsigned long)__rlim_get(limit, i),
+                       (unsigned long)__rlim_rmin(limit, i),
+                       (unsigned long)__rlim_rmax(limit, i),
+                       (long)__rlim_soft(limit, i),
+                       (long)__rlim_hard(limit, i),
+                       atomic_read(&__rlim_lhit(limit, i)));
+       }
+}
+
+#endif
+
+#endif /* _VX_LIMIT_DEF_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/limit_int.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/limit_int.h
--- linux-2.6.22.10/include/linux/vserver/limit_int.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/limit_int.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,198 @@
+#ifndef _VX_LIMIT_INT_H
+#define _VX_LIMIT_INT_H
+
+#include "context.h"
+
+#ifdef __KERNEL__
+
+#define VXD_RCRES_COND(r)      VXD_CBIT(cres, r)
+#define VXD_RLIMIT_COND(r)     VXD_CBIT(limit, r)
+
+extern const char *vlimit_name[NUM_LIMITS];
+
+static inline void __vx_acc_cres(struct vx_info *vxi,
+       int res, int dir, void *_data, char *_file, int _line)
+{
+       if (VXD_RCRES_COND(res))
+               vxlprintk(1, "vx_acc_cres[%5d,%s,%2d]: %5ld%s (%p)",
+                       (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
+                       (vxi ? (long)__rlim_get(&vxi->limit, res) : 0),
+                       (dir > 0) ? "++" : "--", _data, _file, _line);
+       if (!vxi)
+               return;
+
+       if (dir > 0)
+               __rlim_inc(&vxi->limit, res);
+       else
+               __rlim_dec(&vxi->limit, res);
+}
+
+static inline void __vx_add_cres(struct vx_info *vxi,
+       int res, int amount, void *_data, char *_file, int _line)
+{
+       if (VXD_RCRES_COND(res))
+               vxlprintk(1, "vx_add_cres[%5d,%s,%2d]: %5ld += %5d (%p)",
+                       (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
+                       (vxi ? (long)__rlim_get(&vxi->limit, res) : 0),
+                       amount, _data, _file, _line);
+       if (amount == 0)
+               return;
+       if (!vxi)
+               return;
+       __rlim_add(&vxi->limit, res, amount);
+}
+
+static inline
+int __vx_cres_adjust_max(struct _vx_limit *limit, int res, rlim_t value)
+{
+       int cond = (value > __rlim_rmax(limit, res));
+
+       if (cond)
+               __rlim_rmax(limit, res) = value;
+       return cond;
+}
+
+static inline
+int __vx_cres_adjust_min(struct _vx_limit *limit, int res, rlim_t value)
+{
+       int cond = (value < __rlim_rmin(limit, res));
+
+       if (cond)
+               __rlim_rmin(limit, res) = value;
+       return cond;
+}
+
+static inline
+void __vx_cres_fixup(struct _vx_limit *limit, int res, rlim_t value)
+{
+       if (!__vx_cres_adjust_max(limit, res, value))
+               __vx_cres_adjust_min(limit, res, value);
+}
+
+
+/*     return values:
+        +1 ... no limit hit
+        -1 ... over soft limit
+         0 ... over hard limit         */
+
+static inline int __vx_cres_avail(struct vx_info *vxi,
+       int res, int num, char *_file, int _line)
+{
+       struct _vx_limit *limit;
+       rlim_t value;
+
+       if (VXD_RLIMIT_COND(res))
+               vxlprintk(1, "vx_cres_avail[%5d,%s,%2d]: %5ld/%5ld > %5ld + %5d",
+                       (vxi ? vxi->vx_id : -1), vlimit_name[res], res,
+                       (vxi ? (long)__rlim_soft(&vxi->limit, res) : -1),
+                       (vxi ? (long)__rlim_hard(&vxi->limit, res) : -1),
+                       (vxi ? (long)__rlim_get(&vxi->limit, res) : 0),
+                       num, _file, _line);
+       if (!vxi)
+               return 1;
+
+       limit = &vxi->limit;
+       value = __rlim_get(limit, res);
+
+       if (!__vx_cres_adjust_max(limit, res, value))
+               __vx_cres_adjust_min(limit, res, value);
+
+       if (num == 0)
+               return 1;
+
+       if (__rlim_soft(limit, res) == RLIM_INFINITY)
+               return -1;
+       if (value + num <= __rlim_soft(limit, res))
+               return -1;
+
+       if (__rlim_hard(limit, res) == RLIM_INFINITY)
+               return 1;
+       if (value + num <= __rlim_hard(limit, res))
+               return 1;
+
+       __rlim_hit(limit, res);
+       return 0;
+}
+
+
+static const int VLA_RSS[] = { RLIMIT_RSS, VLIMIT_ANON, VLIMIT_MAPPED, 0 };
+
+static inline
+rlim_t __vx_cres_array_sum(struct _vx_limit *limit, const int *array)
+{
+       rlim_t value, sum = 0;
+       int res;
+
+       while ((res = *array++)) {
+               value = __rlim_get(limit, res);
+               __vx_cres_fixup(limit, res, value);
+               sum += value;
+       }
+       return sum;
+}
+
+static inline
+rlim_t __vx_cres_array_fixup(struct _vx_limit *limit, const int *array)
+{
+       rlim_t value = __vx_cres_array_sum(limit, array + 1);
+       int res = *array;
+
+       if (value == __rlim_get(limit, res))
+               return value;
+
+       __rlim_set(limit, res, value);
+       /* now adjust min/max */
+       if (!__vx_cres_adjust_max(limit, res, value))
+               __vx_cres_adjust_min(limit, res, value);
+
+       return value;
+}
+
+static inline int __vx_cres_array_avail(struct vx_info *vxi,
+       const int *array, int num, char *_file, int _line)
+{
+       struct _vx_limit *limit;
+       rlim_t value = 0;
+       int res;
+
+       if (num == 0)
+               return 1;
+       if (!vxi)
+               return 1;
+
+       limit = &vxi->limit;
+       res = *array;
+       value = __vx_cres_array_sum(limit, array + 1);
+
+       __rlim_set(limit, res, value);
+       __vx_cres_fixup(limit, res, value);
+
+       return __vx_cres_avail(vxi, res, num, _file, _line);
+}
+
+
+static inline void vx_limit_fixup(struct _vx_limit *limit, int id)
+{
+       rlim_t value;
+       int res;
+
+       /* complex resources first */
+       if ((id < 0) || (id == RLIMIT_RSS))
+               __vx_cres_array_fixup(limit, VLA_RSS);
+
+       for (res = 0; res < NUM_LIMITS; res++) {
+               if ((id > 0) && (res != id))
+                       continue;
+
+               value = __rlim_get(limit, res);
+               __vx_cres_fixup(limit, res, value);
+
+               /* not supposed to happen, maybe warn? */
+               if (__rlim_rmax(limit, res) > __rlim_hard(limit, res))
+                       __rlim_rmax(limit, res) = __rlim_hard(limit, res);
+       }
+}
+
+
+#endif /* __KERNEL__ */
+#endif /* _VX_LIMIT_INT_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/monitor.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/monitor.h
--- linux-2.6.22.10/include/linux/vserver/monitor.h     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/monitor.h  2007-08-15 23:16:12 +0200
@@ -0,0 +1,96 @@
+#ifndef _VX_MONITOR_H
+#define _VX_MONITOR_H
+
+#include <linux/types.h>
+
+enum {
+       VXM_UNUSED = 0,
+
+       VXM_SYNC = 0x10,
+
+       VXM_UPDATE = 0x20,
+       VXM_UPDATE_1,
+       VXM_UPDATE_2,
+
+       VXM_RQINFO_1 = 0x24,
+       VXM_RQINFO_2,
+
+       VXM_ACTIVATE = 0x40,
+       VXM_DEACTIVATE,
+       VXM_IDLE,
+
+       VXM_HOLD = 0x44,
+       VXM_UNHOLD,
+
+       VXM_MIGRATE = 0x48,
+       VXM_RESCHED,
+
+       /* all other bits are flags */
+       VXM_SCHED = 0x80,
+};
+
+struct _vxm_update_1 {
+       uint32_t tokens_max;
+       uint32_t fill_rate;
+       uint32_t interval;
+};
+
+struct _vxm_update_2 {
+       uint32_t tokens_min;
+       uint32_t fill_rate;
+       uint32_t interval;
+};
+
+struct _vxm_rqinfo_1 {
+       uint16_t running;
+       uint16_t onhold;
+       uint16_t iowait;
+       uint16_t uintr;
+       uint32_t idle_tokens;
+};
+
+struct _vxm_rqinfo_2 {
+       uint32_t norm_time;
+       uint32_t idle_time;
+       uint32_t idle_skip;
+};
+
+struct _vxm_sched {
+       uint32_t tokens;
+       uint32_t norm_time;
+       uint32_t idle_time;
+};
+
+struct _vxm_task {
+       uint16_t pid;
+       uint16_t state;
+};
+
+struct _vxm_event {
+       uint32_t jif;
+       union {
+               uint32_t seq;
+               uint32_t sec;
+       };
+       union {
+               uint32_t tokens;
+               uint32_t nsec;
+               struct _vxm_task tsk;
+       };
+};
+
+struct _vx_mon_entry {
+       uint16_t type;
+       uint16_t xid;
+       union {
+               struct _vxm_event ev;
+               struct _vxm_sched sd;
+               struct _vxm_update_1 u1;
+               struct _vxm_update_2 u2;
+               struct _vxm_rqinfo_1 q1;
+               struct _vxm_rqinfo_2 q2;
+       };
+};
+
+
+#endif /* _VX_MONITOR_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/network.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/network.h
--- linux-2.6.22.10/include/linux/vserver/network.h     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/network.h  2007-10-05 12:29:05 +0200
@@ -0,0 +1,143 @@
+#ifndef _VX_NETWORK_H
+#define _VX_NETWORK_H
+
+#include <linux/types.h>
+
+
+#define MAX_N_CONTEXT  65535   /* Arbitrary limit */
+
+
+/* network flags */
+
+#define NXF_INFO_PRIVATE       0x00000008
+
+#define NXF_SINGLE_IP          0x00000100
+#define NXF_LBACK_REMAP                0x00000200
+
+#define NXF_HIDE_NETIF         0x02000000
+#define NXF_HIDE_LBACK         0x04000000
+
+#define NXF_STATE_SETUP                (1ULL << 32)
+#define NXF_STATE_ADMIN                (1ULL << 34)
+
+#define NXF_SC_HELPER          (1ULL << 36)
+#define NXF_PERSISTENT         (1ULL << 38)
+
+#define NXF_ONE_TIME           (0x0005ULL << 32)
+
+
+#define        NXF_INIT_SET            (__nxf_init_set())
+
+static inline uint64_t __nxf_init_set(void) {
+       return    NXF_STATE_ADMIN
+#ifdef CONFIG_VSERVER_AUTO_LBACK
+               | NXF_LBACK_REMAP
+               | NXF_HIDE_LBACK
+#endif
+#ifdef CONFIG_VSERVER_AUTO_SINGLE
+               | NXF_SINGLE_IP
+#endif
+               | NXF_HIDE_NETIF;
+}
+
+
+/* network caps */
+
+#define NXC_RAW_ICMP           0x00000100
+
+
+/* address types */
+
+#define NXA_TYPE_IPV4          0x0001
+#define NXA_TYPE_IPV6          0x0002
+
+#define NXA_TYPE_NONE          0x0000
+#define NXA_TYPE_ANY           0x00FF
+
+#define NXA_TYPE_ADDR          0x0010
+#define NXA_TYPE_MASK          0x0020
+#define NXA_TYPE_RANGE         0x0040
+
+#define NXA_MASK_ALL           (NXA_TYPE_ADDR | NXA_TYPE_MASK | NXA_TYPE_RANGE)
+
+#define NXA_MOD_BCAST          0x0100
+#define NXA_MOD_LBACK          0x0200
+
+#define NXA_LOOPBACK           0x1000
+
+#define NXA_MASK_BIND          (NXA_MASK_ALL | NXA_MOD_BCAST | NXA_MOD_LBACK)
+#define NXA_MASK_SHOW          (NXA_MASK_ALL | NXA_LOOPBACK)
+
+#ifdef __KERNEL__
+
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/rcupdate.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <asm/atomic.h>
+
+struct nx_addr_v4 {
+       struct nx_addr_v4 *next;
+       struct in_addr ip[2];
+       struct in_addr mask;
+       uint16_t type;
+       uint16_t flags;
+};
+
+struct nx_addr_v6 {
+       struct nx_addr_v6 *next;
+       struct in6_addr ip;
+       struct in6_addr mask;
+       uint32_t prefix;
+       uint16_t type;
+       uint16_t flags;
+};
+
+struct nx_info {
+       struct hlist_node nx_hlist;     /* linked list of nxinfos */
+       nid_t nx_id;                    /* vnet id */
+       atomic_t nx_usecnt;             /* usage count */
+       atomic_t nx_tasks;              /* tasks count */
+       int nx_state;                   /* context state */
+
+       uint64_t nx_flags;              /* network flag word */
+       uint64_t nx_ncaps;              /* network capabilities */
+
+       struct in_addr v4_lback;        /* Loopback address */
+       struct in_addr v4_bcast;        /* Broadcast address */
+       struct nx_addr_v4 v4;           /* First/Single ipv4 address */
+#ifdef CONFIG_IPV6
+       struct nx_addr_v6 v6;           /* First/Single ipv6 address */
+#endif
+       char nx_name[65];               /* network context name */
+};
+
+
+/* status flags */
+
+#define NXS_HASHED      0x0001
+#define NXS_SHUTDOWN    0x0100
+#define NXS_RELEASED    0x8000
+
+extern struct nx_info *lookup_nx_info(int);
+
+extern int get_nid_list(int, unsigned int *, int);
+extern int nid_is_hashed(nid_t);
+
+extern int nx_migrate_task(struct task_struct *, struct nx_info *);
+
+extern long vs_net_change(struct nx_info *, unsigned int);
+
+struct sock;
+
+
+#define NX_IPV4(n)     ((n)->v4.type != NXA_TYPE_NONE)
+#ifdef  CONFIG_IPV6
+#define NX_IPV6(n)     ((n)->v6.type != NXA_TYPE_NONE)
+#else
+#define NX_IPV6(n)     (0)
+#endif
+
+#endif /* __KERNEL__ */
+#endif /* _VX_NETWORK_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/network_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/network_cmd.h
--- linux-2.6.22.10/include/linux/vserver/network_cmd.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/network_cmd.h      2007-08-15 20:08:10 +0200
@@ -0,0 +1,150 @@
+#ifndef _VX_NETWORK_CMD_H
+#define _VX_NETWORK_CMD_H
+
+
+/* vinfo commands */
+
+#define VCMD_task_nid          VC_CMD(VINFO, 2, 0)
+
+#ifdef __KERNEL__
+extern int vc_task_nid(uint32_t);
+
+#endif /* __KERNEL__ */
+
+#define VCMD_nx_info           VC_CMD(VINFO, 6, 0)
+
+struct vcmd_nx_info_v0 {
+       uint32_t nid;
+       /* more to come */
+};
+
+#ifdef __KERNEL__
+extern int vc_nx_info(struct nx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+#include <linux/in.h>
+#include <linux/in6.h>
+
+#define VCMD_net_create_v0     VC_CMD(VNET, 1, 0)
+#define VCMD_net_create                VC_CMD(VNET, 1, 1)
+
+struct  vcmd_net_create {
+       uint64_t flagword;
+};
+
+#define VCMD_net_migrate       VC_CMD(NETMIG, 1, 0)
+
+#define VCMD_net_add           VC_CMD(NETALT, 1, 0)
+#define VCMD_net_remove                VC_CMD(NETALT, 2, 0)
+
+struct vcmd_net_addr_v0 {
+       uint16_t type;
+       uint16_t count;
+       struct in_addr ip[4];
+       struct in_addr mask[4];
+};
+
+#define VCMD_net_add_ipv4      VC_CMD(NETALT, 1, 1)
+#define VCMD_net_remove_ipv4   VC_CMD(NETALT, 2, 1)
+
+struct vcmd_net_addr_ipv4_v1 {
+       uint16_t type;
+       uint16_t flags;
+       struct in_addr ip;
+       struct in_addr mask;
+};
+
+#define VCMD_net_add_ipv6      VC_CMD(NETALT, 3, 1)
+#define VCMD_net_remove_ipv6   VC_CMD(NETALT, 4, 1)
+
+struct vcmd_net_addr_ipv6_v1 {
+       uint16_t type;
+       uint16_t flags;
+       uint32_t prefix;
+       struct in6_addr ip;
+       struct in6_addr mask;
+};
+
+#define VCMD_add_match_ipv4    VC_CMD(NETALT, 5, 0)
+#define VCMD_get_match_ipv4    VC_CMD(NETALT, 6, 0)
+
+struct vcmd_match_ipv4_v0 {
+       uint16_t type;
+       uint16_t flags;
+       uint16_t parent;
+       uint16_t prefix;
+       struct in_addr ip;
+       struct in_addr ip2;
+       struct in_addr mask;
+};
+
+#define VCMD_add_match_ipv6    VC_CMD(NETALT, 7, 0)
+#define VCMD_get_match_ipv6    VC_CMD(NETALT, 8, 0)
+
+struct vcmd_match_ipv6_v0 {
+       uint16_t type;
+       uint16_t flags;
+       uint16_t parent;
+       uint16_t prefix;
+       struct in6_addr ip;
+       struct in6_addr ip2;
+       struct in6_addr mask;
+};
+
+
+#ifdef __KERNEL__
+extern int vc_net_create(uint32_t, void __user *);
+extern int vc_net_migrate(struct nx_info *, void __user *);
+
+extern int vc_net_add(struct nx_info *, void __user *);
+extern int vc_net_remove(struct nx_info *, void __user *);
+
+extern int vc_net_add_ipv4(struct nx_info *, void __user *);
+extern int vc_net_remove_ipv4(struct nx_info *, void __user *);
+
+extern int vc_net_add_ipv6(struct nx_info *, void __user *);
+extern int vc_net_remove_ipv6(struct nx_info *, void __user *);
+
+extern int vc_add_match_ipv4(struct nx_info *, void __user *);
+extern int vc_get_match_ipv4(struct nx_info *, void __user *);
+
+extern int vc_add_match_ipv6(struct nx_info *, void __user *);
+extern int vc_get_match_ipv6(struct nx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+
+/* flag commands */
+
+#define VCMD_get_nflags                VC_CMD(FLAGS, 5, 0)
+#define VCMD_set_nflags                VC_CMD(FLAGS, 6, 0)
+
+struct vcmd_net_flags_v0 {
+       uint64_t flagword;
+       uint64_t mask;
+};
+
+#ifdef __KERNEL__
+extern int vc_get_nflags(struct nx_info *, void __user *);
+extern int vc_set_nflags(struct nx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+
+/* network caps commands */
+
+#define VCMD_get_ncaps         VC_CMD(FLAGS, 7, 0)
+#define VCMD_set_ncaps         VC_CMD(FLAGS, 8, 0)
+
+struct vcmd_net_caps_v0 {
+       uint64_t ncaps;
+       uint64_t cmask;
+};
+
+#ifdef __KERNEL__
+extern int vc_get_ncaps(struct nx_info *, void __user *);
+extern int vc_set_ncaps(struct nx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+#endif /* _VX_CONTEXT_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/percpu.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/percpu.h
--- linux-2.6.22.10/include/linux/vserver/percpu.h      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/percpu.h   2007-08-05 20:53:13 +0200
@@ -0,0 +1,14 @@
+#ifndef _VX_PERCPU_H
+#define _VX_PERCPU_H
+
+#include "cvirt_def.h"
+#include "sched_def.h"
+
+struct _vx_percpu {
+       struct _vx_cvirt_pc cvirt;
+       struct _vx_sched_pc sched;
+};
+
+#define        PERCPU_PERCTX   (sizeof(struct _vx_percpu))
+
+#endif /* _VX_PERCPU_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/sched.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/sched.h
--- linux-2.6.22.10/include/linux/vserver/sched.h       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/sched.h    2007-08-05 20:53:13 +0200
@@ -0,0 +1,26 @@
+#ifndef _VX_SCHED_H
+#define _VX_SCHED_H
+
+
+#ifdef __KERNEL__
+
+struct timespec;
+
+void vx_vsi_uptime(struct timespec *, struct timespec *);
+
+
+struct vx_info;
+
+void vx_update_load(struct vx_info *);
+
+
+int vx_tokens_recalc(struct _vx_sched_pc *,
+       unsigned long *, unsigned long *, int [2]);
+
+void vx_update_sched_param(struct _vx_sched *sched,
+       struct _vx_sched_pc *sched_pc);
+
+#endif /* __KERNEL__ */
+#else  /* _VX_SCHED_H */
+#warning duplicate inclusion
+#endif /* _VX_SCHED_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/sched_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/sched_cmd.h
--- linux-2.6.22.10/include/linux/vserver/sched_cmd.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/sched_cmd.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,108 @@
+#ifndef _VX_SCHED_CMD_H
+#define _VX_SCHED_CMD_H
+
+
+/*  sched vserver commands */
+
+#define VCMD_set_sched_v2      VC_CMD(SCHED, 1, 2)
+#define VCMD_set_sched_v3      VC_CMD(SCHED, 1, 3)
+#define VCMD_set_sched_v4      VC_CMD(SCHED, 1, 4)
+
+struct vcmd_set_sched_v2 {
+       int32_t fill_rate;
+       int32_t interval;
+       int32_t tokens;
+       int32_t tokens_min;
+       int32_t tokens_max;
+       uint64_t cpu_mask;
+};
+
+struct vcmd_set_sched_v3 {
+       uint32_t set_mask;
+       int32_t fill_rate;
+       int32_t interval;
+       int32_t tokens;
+       int32_t tokens_min;
+       int32_t tokens_max;
+       int32_t priority_bias;
+};
+
+struct vcmd_set_sched_v4 {
+       uint32_t set_mask;
+       int32_t fill_rate;
+       int32_t interval;
+       int32_t tokens;
+       int32_t tokens_min;
+       int32_t tokens_max;
+       int32_t prio_bias;
+       int32_t cpu_id;
+       int32_t bucket_id;
+};
+
+#define VCMD_set_sched         VC_CMD(SCHED, 1, 5)
+#define VCMD_get_sched         VC_CMD(SCHED, 2, 5)
+
+struct vcmd_sched_v5 {
+       uint32_t mask;
+       int32_t cpu_id;
+       int32_t bucket_id;
+       int32_t fill_rate[2];
+       int32_t interval[2];
+       int32_t tokens;
+       int32_t tokens_min;
+       int32_t tokens_max;
+       int32_t prio_bias;
+};
+
+#define VXSM_FILL_RATE         0x0001
+#define VXSM_INTERVAL          0x0002
+#define VXSM_FILL_RATE2                0x0004
+#define VXSM_INTERVAL2         0x0008
+#define VXSM_TOKENS            0x0010
+#define VXSM_TOKENS_MIN                0x0020
+#define VXSM_TOKENS_MAX                0x0040
+#define VXSM_PRIO_BIAS         0x0100
+
+#define VXSM_IDLE_TIME         0x0200
+#define VXSM_FORCE             0x0400
+
+#define        VXSM_V3_MASK            0x0173
+#define        VXSM_SET_MASK           0x01FF
+
+#define VXSM_CPU_ID            0x1000
+#define VXSM_BUCKET_ID         0x2000
+
+#define VXSM_MSEC              0x4000
+
+#define SCHED_KEEP             (-2)    /* only for v2 */
+
+#ifdef __KERNEL__
+
+#include <linux/compiler.h>
+
+extern int vc_set_sched_v2(struct vx_info *, void __user *);
+extern int vc_set_sched_v3(struct vx_info *, void __user *);
+extern int vc_set_sched_v4(struct vx_info *, void __user *);
+extern int vc_set_sched(struct vx_info *, void __user *);
+extern int vc_get_sched(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+#define VCMD_sched_info                VC_CMD(SCHED, 3, 0)
+
+struct vcmd_sched_info {
+       int32_t cpu_id;
+       int32_t bucket_id;
+       uint64_t user_msec;
+       uint64_t sys_msec;
+       uint64_t hold_msec;
+       uint32_t token_usec;
+       int32_t vavavoom;
+};
+
+#ifdef __KERNEL__
+
+extern int vc_sched_info(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+#endif /* _VX_SCHED_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/sched_def.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/sched_def.h
--- linux-2.6.22.10/include/linux/vserver/sched_def.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/sched_def.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,68 @@
+#ifndef _VX_SCHED_DEF_H
+#define _VX_SCHED_DEF_H
+
+#include <linux/spinlock.h>
+#include <linux/jiffies.h>
+#include <linux/cpumask.h>
+#include <asm/atomic.h>
+#include <asm/param.h>
+
+
+/* context sub struct */
+
+struct _vx_sched {
+       spinlock_t tokens_lock;         /* lock for token bucket */
+
+       int tokens;                     /* number of CPU tokens */
+       int fill_rate[2];               /* Fill rate: add X tokens... */
+       int interval[2];                /* Divisor:   per Y jiffies   */
+       int tokens_min;                 /* Limit:     minimum for unhold */
+       int tokens_max;                 /* Limit:     no more than N tokens */
+
+       int prio_bias;                  /* bias offset for priority */
+
+       unsigned update_mask;           /* which features should be updated */
+       cpumask_t update;               /* CPUs which should update */
+};
+
+struct _vx_sched_pc {
+       int tokens;                     /* number of CPU tokens */
+       int flags;                      /* bucket flags */
+
+       int fill_rate[2];               /* Fill rate: add X tokens... */
+       int interval[2];                /* Divisor:   per Y jiffies   */
+       int tokens_min;                 /* Limit:     minimum for unhold */
+       int tokens_max;                 /* Limit:     no more than N tokens */
+
+       int prio_bias;                  /* bias offset for priority */
+       int vavavoom;                   /* last calculated vavavoom */
+
+       unsigned long norm_time;        /* last time accounted */
+       unsigned long idle_time;        /* non linear time for fair sched */
+       unsigned long token_time;       /* token time for accounting */
+       unsigned long onhold;           /* jiffies when put on hold */
+
+       uint64_t user_ticks;            /* token tick events */
+       uint64_t sys_ticks;             /* token tick events */
+       uint64_t hold_ticks;            /* token ticks paused */
+};
+
+
+#define VXSF_ONHOLD    0x0001
+#define VXSF_IDLE_TIME 0x0100
+
+#ifdef CONFIG_VSERVER_DEBUG
+
+static inline void __dump_vx_sched(struct _vx_sched *sched)
+{
+       printk("\t_vx_sched:\n");
+       printk("\t tokens: %4d/%4d, %4d/%4d, %4d, %4d\n",
+               sched->fill_rate[0], sched->interval[0],
+               sched->fill_rate[1], sched->interval[1],
+               sched->tokens_min, sched->tokens_max);
+       printk("\t priority = %4d\n", sched->prio_bias);
+}
+
+#endif
+
+#endif /* _VX_SCHED_DEF_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/signal.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/signal.h
--- linux-2.6.22.10/include/linux/vserver/signal.h      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/signal.h   2007-08-05 20:53:13 +0200
@@ -0,0 +1,14 @@
+#ifndef _VX_SIGNAL_H
+#define _VX_SIGNAL_H
+
+
+#ifdef __KERNEL__
+
+struct vx_info;
+
+int vx_info_kill(struct vx_info *, int, int);
+
+#endif /* __KERNEL__ */
+#else  /* _VX_SIGNAL_H */
+#warning duplicate inclusion
+#endif /* _VX_SIGNAL_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/signal_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/signal_cmd.h
--- linux-2.6.22.10/include/linux/vserver/signal_cmd.h  1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/signal_cmd.h       2007-08-05 20:53:13 +0200
@@ -0,0 +1,43 @@
+#ifndef _VX_SIGNAL_CMD_H
+#define _VX_SIGNAL_CMD_H
+
+
+/*  signalling vserver commands */
+
+#define VCMD_ctx_kill          VC_CMD(PROCTRL, 1, 0)
+#define VCMD_wait_exit         VC_CMD(EVENT, 99, 0)
+
+struct vcmd_ctx_kill_v0 {
+       int32_t pid;
+       int32_t sig;
+};
+
+struct vcmd_wait_exit_v0 {
+       int32_t reboot_cmd;
+       int32_t exit_code;
+};
+
+#ifdef __KERNEL__
+
+extern int vc_ctx_kill(struct vx_info *, void __user *);
+extern int vc_wait_exit(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+
+/*  process alteration commands */
+
+#define VCMD_get_pflags                VC_CMD(PROCALT, 5, 0)
+#define VCMD_set_pflags                VC_CMD(PROCALT, 6, 0)
+
+struct vcmd_pflags_v0 {
+       uint32_t flagword;
+       uint32_t mask;
+};
+
+#ifdef __KERNEL__
+
+extern int vc_get_pflags(uint32_t pid, void __user *);
+extern int vc_set_pflags(uint32_t pid, void __user *);
+
+#endif /* __KERNEL__ */
+#endif /* _VX_SIGNAL_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/space.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/space.h
--- linux-2.6.22.10/include/linux/vserver/space.h       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/space.h    2007-08-05 20:53:13 +0200
@@ -0,0 +1,13 @@
+#ifndef _VX_SPACE_H
+#define _VX_SPACE_H
+
+
+#include <linux/types.h>
+
+struct vx_info;
+
+int vx_set_space(struct vx_info *vxi, unsigned long mask);
+
+#else  /* _VX_SPACE_H */
+#warning duplicate inclusion
+#endif /* _VX_SPACE_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/space_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/space_cmd.h
--- linux-2.6.22.10/include/linux/vserver/space_cmd.h   1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/space_cmd.h        2007-08-05 20:53:13 +0200
@@ -0,0 +1,26 @@
+#ifndef _VX_SPACE_CMD_H
+#define _VX_SPACE_CMD_H
+
+
+#define VCMD_enter_space_v0    VC_CMD(PROCALT, 1, 0)
+#define VCMD_enter_space       VC_CMD(PROCALT, 1, 1)
+
+#define VCMD_set_space_v0      VC_CMD(PROCALT, 3, 0)
+#define VCMD_set_space         VC_CMD(PROCALT, 3, 1)
+
+#define VCMD_get_space_mask    VC_CMD(PROCALT, 4, 0)
+
+
+struct vcmd_space_mask {
+       uint64_t mask;
+};
+
+
+#ifdef __KERNEL__
+
+extern int vc_enter_space(struct vx_info *, void __user *);
+extern int vc_set_space(struct vx_info *, void __user *);
+extern int vc_get_space_mask(struct vx_info *, void __user *);
+
+#endif /* __KERNEL__ */
+#endif /* _VX_SPACE_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/switch.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/switch.h
--- linux-2.6.22.10/include/linux/vserver/switch.h      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/switch.h   2007-10-11 01:10:22 +0200
@@ -0,0 +1,99 @@
+#ifndef _VX_SWITCH_H
+#define _VX_SWITCH_H
+
+#include <linux/types.h>
+
+
+#define VC_CATEGORY(c)         (((c) >> 24) & 0x3F)
+#define VC_COMMAND(c)          (((c) >> 16) & 0xFF)
+#define VC_VERSION(c)          ((c) & 0xFFF)
+
+#define VC_CMD(c, i, v)                ((((VC_CAT_ ## c) & 0x3F) << 24) \
+                               | (((i) & 0xFF) << 16) | ((v) & 0xFFF))
+
+/*
+
+  Syscall Matrix V2.8
+
+        |VERSION|CREATE |MODIFY |MIGRATE|CONTROL|EXPERIM| |SPECIAL|SPECIAL|
+        |STATS  |DESTROY|ALTER  |CHANGE |LIMIT  |TEST   | |       |       |
+        |INFO   |SETUP  |       |MOVE   |       |       | |       |       |
+  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
+  SYSTEM |VERSION|VSETUP |VHOST  |       |       |       | |DEVICE |       |
+  HOST   |     00|     01|     02|     03|     04|     05| |     06|     07|
+  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
+  CPU    |       |VPROC  |PROCALT|PROCMIG|PROCTRL|       | |SCHED. |       |
+  PROCESS|     08|     09|     10|     11|     12|     13| |     14|     15|
+  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
+  MEMORY |       |       |       |       |MEMCTRL|       | |SWAP   |       |
+        |     16|     17|     18|     19|     20|     21| |     22|     23|
+  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
+  NETWORK|       |VNET   |NETALT |NETMIG |NETCTL |       | |SERIAL |       |
+        |     24|     25|     26|     27|     28|     29| |     30|     31|
+  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
+  DISK   |       |       |       |TAGMIG |DLIMIT |       | |INODE  |       |
+  VFS    |     32|     33|     34|     35|     36|     37| |     38|     39|
+  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
+  OTHER  |VSTAT  |       |       |       |       |       | |VINFO  |       |
+        |     40|     41|     42|     43|     44|     45| |     46|     47|
+  =======+=======+=======+=======+=======+=======+=======+ +=======+=======+
+  SPECIAL|EVENT  |       |       |       |FLAGS  |       | |       |       |
+        |     48|     49|     50|     51|     52|     53| |     54|     55|
+  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
+  SPECIAL|DEBUG  |       |       |       |RLIMIT |SYSCALL| |       |COMPAT |
+        |     56|     57|     58|     59|     60|TEST 61| |     62|     63|
+  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
+
+*/
+
+#define VC_CAT_VERSION         0
+
+#define VC_CAT_VSETUP          1
+#define VC_CAT_VHOST           2
+
+#define VC_CAT_DEVICE          6
+
+#define VC_CAT_VPROC           9
+#define VC_CAT_PROCALT         10
+#define VC_CAT_PROCMIG         11
+#define VC_CAT_PROCTRL         12
+
+#define VC_CAT_SCHED           14
+#define VC_CAT_MEMCTRL         20
+
+#define VC_CAT_VNET            25
+#define VC_CAT_NETALT          26
+#define VC_CAT_NETMIG          27
+#define VC_CAT_NETCTRL         28
+
+#define VC_CAT_TAGMIG          35
+#define VC_CAT_DLIMIT          36
+#define VC_CAT_INODE           38
+
+#define VC_CAT_VSTAT           40
+#define VC_CAT_VINFO           46
+#define VC_CAT_EVENT           48
+
+#define VC_CAT_FLAGS           52
+#define VC_CAT_DEBUG           56
+#define VC_CAT_RLIMIT          60
+
+#define VC_CAT_SYSTEST         61
+#define VC_CAT_COMPAT          63
+
+/*  query version */
+
+#define VCMD_get_version       VC_CMD(VERSION, 0, 0)
+#define VCMD_get_vci           VC_CMD(VERSION, 1, 0)
+
+
+#ifdef __KERNEL__
+
+#include <linux/errno.h>
+
+
+#else  /* __KERNEL__ */
+#define __user
+#endif /* __KERNEL__ */
+
+#endif /* _VX_SWITCH_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/tag.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/tag.h
--- linux-2.6.22.10/include/linux/vserver/tag.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/tag.h      2007-10-10 19:05:04 +0200
@@ -0,0 +1,143 @@
+#ifndef _DX_TAG_H
+#define _DX_TAG_H
+
+#include <linux/types.h>
+
+
+#define DX_TAG(in)     (IS_TAGGED(in))
+
+
+#ifdef CONFIG_DX_TAG_NFSD
+#define DX_TAG_NFSD    1
+#else
+#define DX_TAG_NFSD    0
+#endif
+
+
+#ifdef CONFIG_TAGGING_NONE
+
+#define MAX_UID                0xFFFFFFFF
+#define MAX_GID                0xFFFFFFFF
+
+#define INOTAG_TAG(cond, uid, gid, tag)        (0)
+
+#define TAGINO_UID(cond, uid, tag)     (uid)
+#define TAGINO_GID(cond, gid, tag)     (gid)
+
+#endif
+
+
+#ifdef CONFIG_TAGGING_GID16
+
+#define MAX_UID                0xFFFFFFFF
+#define MAX_GID                0x0000FFFF
+
+#define INOTAG_TAG(cond, uid, gid, tag)        \
+       ((cond) ? (((gid) >> 16) & 0xFFFF) : 0)
+
+#define TAGINO_UID(cond, uid, tag)     (uid)
+#define TAGINO_GID(cond, gid, tag)     \
+       ((cond) ? (((gid) & 0xFFFF) | ((tag) << 16)) : (gid))
+
+#endif
+
+
+#ifdef CONFIG_TAGGING_ID24
+
+#define MAX_UID                0x00FFFFFF
+#define MAX_GID                0x00FFFFFF
+
+#define INOTAG_TAG(cond, uid, gid, tag)        \
+       ((cond) ? ((((uid) >> 16) & 0xFF00) | (((gid) >> 24) & 0xFF)) : 0)
+
+#define TAGINO_UID(cond, uid, tag)     \
+       ((cond) ? (((uid) & 0xFFFFFF) | (((tag) & 0xFF00) << 16)) : (uid))
+#define TAGINO_GID(cond, gid, tag)     \
+       ((cond) ? (((gid) & 0xFFFFFF) | (((tag) & 0x00FF) << 24)) : (gid))
+
+#endif
+
+
+#ifdef CONFIG_TAGGING_UID16
+
+#define MAX_UID                0x0000FFFF
+#define MAX_GID                0xFFFFFFFF
+
+#define INOTAG_TAG(cond, uid, gid, tag)        \
+       ((cond) ? (((uid) >> 16) & 0xFFFF) : 0)
+
+#define TAGINO_UID(cond, uid, tag)     \
+       ((cond) ? (((uid) & 0xFFFF) | ((tag) << 16)) : (uid))
+#define TAGINO_GID(cond, gid, tag)     (gid)
+
+#endif
+
+
+#ifdef CONFIG_TAGGING_INTERN
+
+#define MAX_UID                0xFFFFFFFF
+#define MAX_GID                0xFFFFFFFF
+
+#define INOTAG_TAG(cond, uid, gid, tag)        \
+       ((cond) ? (tag) : 0)
+
+#define TAGINO_UID(cond, uid, tag)     (uid)
+#define TAGINO_GID(cond, gid, tag)     (gid)
+
+#endif
+
+
+#ifndef CONFIG_TAGGING_NONE
+#define dx_current_fstag(sb)   \
+       ((sb)->s_flags & MS_TAGGED ? dx_current_tag() : 0)
+#else
+#define dx_current_fstag(sb)   (0)
+#endif
+
+#ifndef CONFIG_TAGGING_INTERN
+#define TAGINO_TAG(cond, tag)  (0)
+#else
+#define TAGINO_TAG(cond, tag)  ((cond) ? (tag) : 0)
+#endif
+
+#define INOTAG_UID(cond, uid, gid)     \
+       ((cond) ? ((uid) & MAX_UID) : (uid))
+#define INOTAG_GID(cond, uid, gid)     \
+       ((cond) ? ((gid) & MAX_GID) : (gid))
+
+
+static inline uid_t dx_map_uid(uid_t uid)
+{
+       if ((uid > MAX_UID) && (uid != -1))
+               uid = -2;
+       return (uid & MAX_UID);
+}
+
+static inline gid_t dx_map_gid(gid_t gid)
+{
+       if ((gid > MAX_GID) && (gid != -1))
+               gid = -2;
+       return (gid & MAX_GID);
+}
+
+struct peer_tag {
+       int32_t xid;
+       int32_t nid;
+};
+
+#define dx_notagcheck(nd) \
+       ((nd) && (nd)->mnt && ((nd)->mnt->mnt_flags & MNT_NOTAGCHECK))
+
+int dx_parse_tag(char *string, tag_t *tag, int remove);
+
+#ifdef CONFIG_PROPAGATE
+
+void __dx_propagate_tag(struct nameidata *nd, struct inode *inode);
+
+#define dx_propagate_tag(n, i) __dx_propagate_tag(n, i)
+
+#else
+#define dx_propagate_tag(n, i) do { } while (0)
+#endif
+
+#endif /* _DX_TAG_H */
diff -NurpP --minimal linux-2.6.22.10/include/linux/vserver/tag_cmd.h linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/tag_cmd.h
--- linux-2.6.22.10/include/linux/vserver/tag_cmd.h     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/include/linux/vserver/tag_cmd.h  2007-08-15 20:16:43 +0200
@@ -0,0 +1,22 @@
+#ifndef _VX_TAG_CMD_H
+#define _VX_TAG_CMD_H
+
+
+/* vinfo commands */
+
+#define VCMD_task_tag          VC_CMD(VINFO, 3, 0)
+
+#ifdef __KERNEL__
+extern int vc_task_tag(uint32_t);
+
+#endif /* __KERNEL__ */
+
+/* context commands */
+
+#define VCMD_tag_migrate       VC_CMD(TAGMIG, 1, 0)
+
+#ifdef __KERNEL__
+extern int vc_tag_migrate(uint32_t);
+
+#endif /* __KERNEL__ */
+#endif /* _VX_TAG_CMD_H */
diff -NurpP --minimal linux-2.6.22.10/include/net/addrconf.h linux-2.6.22.10-vs2.3.0.29/include/net/addrconf.h
--- linux-2.6.22.10/include/net/addrconf.h      2007-07-09 13:20:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/net/addrconf.h   2007-08-12 00:22:19 +0200
@@ -69,10 +69,12 @@ extern struct inet6_ifaddr *        ipv6_get_if
                                                int strict);
 extern int                     ipv6_get_saddr(struct dst_entry *dst, 
                                               struct in6_addr *daddr,
-                                              struct in6_addr *saddr);
+                                              struct in6_addr *saddr,
+                                              struct nx_info *nxi);
 extern int                     ipv6_dev_get_saddr(struct net_device *dev, 
                                               struct in6_addr *daddr,
-                                              struct in6_addr *saddr);
+                                              struct in6_addr *saddr,
+                                              struct nx_info *nxi);
 extern int                     ipv6_get_lladdr(struct net_device *dev,
                                                struct in6_addr *addr,
                                                unsigned char banned_flags);
diff -NurpP --minimal linux-2.6.22.10/include/net/af_unix.h linux-2.6.22.10-vs2.3.0.29/include/net/af_unix.h
--- linux-2.6.22.10/include/net/af_unix.h       2007-07-09 13:20:01 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/net/af_unix.h    2007-08-05 20:53:13 +0200
@@ -4,6 +4,7 @@
 #include <linux/socket.h>
 #include <linux/un.h>
 #include <linux/mutex.h>
+#include <linux/vs_base.h>
 #include <net/sock.h>
 
 extern void unix_inflight(struct file *fp);
@@ -17,9 +18,9 @@ extern spinlock_t unix_table_lock;
 
 extern atomic_t unix_tot_inflight;
 
-static inline struct sock *first_unix_socket(int *i)
+static inline struct sock *next_unix_socket_table(int *i)
 {
-       for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) {
+       for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
                if (!hlist_empty(&unix_socket_table[*i]))
                        return __sk_head(&unix_socket_table[*i]);
        }
@@ -28,16 +29,19 @@ static inline struct sock *first_unix_so
 
 static inline struct sock *next_unix_socket(int *i, struct sock *s)
 {
-       struct sock *next = sk_next(s);
-       /* More in this chain? */
-       if (next)
-               return next;
-       /* Look for next non-empty chain. */
-       for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
-               if (!hlist_empty(&unix_socket_table[*i]))
-                       return __sk_head(&unix_socket_table[*i]);
-       }
-       return NULL;
+       do {
+               if (s)
+                       s = sk_next(s);
+               if (!s)
+                       s = next_unix_socket_table(i);
+       } while (s && !nx_check(s->sk_nid, VS_WATCH_P | VS_IDENT));
+       return s;
+}
+
+static inline struct sock *first_unix_socket(int *i)
+{
+       *i = 0;
+       return next_unix_socket(i, NULL);
 }
 
 #define forall_unix_sockets(i, s) \
diff -NurpP --minimal linux-2.6.22.10/include/net/inet_timewait_sock.h linux-2.6.22.10-vs2.3.0.29/include/net/inet_timewait_sock.h
--- linux-2.6.22.10/include/net/inet_timewait_sock.h    2007-05-02 19:25:35 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/net/inet_timewait_sock.h 2007-08-05 20:53:13 +0200
@@ -115,6 +115,10 @@ struct inet_timewait_sock {
 #define tw_refcnt              __tw_common.skc_refcnt
 #define tw_hash                        __tw_common.skc_hash
 #define tw_prot                        __tw_common.skc_prot
+#define tw_xid         __tw_common.skc_xid
+#define tw_vx_info             __tw_common.skc_vx_info
+#define tw_nid         __tw_common.skc_nid
+#define tw_nx_info             __tw_common.skc_nx_info
        volatile unsigned char  tw_substate;
        /* 3 bits hole, try to pack */
        unsigned char           tw_rcv_wscale;
diff -NurpP --minimal linux-2.6.22.10/include/net/route.h linux-2.6.22.10-vs2.3.0.29/include/net/route.h
--- linux-2.6.22.10/include/net/route.h 2007-05-02 19:25:35 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/net/route.h      2007-09-18 03:52:05 +0200
@@ -27,12 +27,16 @@
 #include <net/dst.h>
 #include <net/inetpeer.h>
 #include <net/flow.h>
+#include <net/inet_sock.h>
 #include <linux/in_route.h>
 #include <linux/rtnetlink.h>
 #include <linux/route.h>
 #include <linux/ip.h>
 #include <linux/cache.h>
 #include <linux/security.h>
+#include <linux/vs_base.h>
+#include <linux/vs_inet.h>
+#include <linux/in.h>
 
 #ifndef __KERNEL__
 #warning This file is not supposed to be used outside of kernel.
@@ -143,6 +147,8 @@ static inline char rt_tos2priority(u8 to
        return ip_tos2prio[IPTOS_TOS(tos)>>1];
 }
 
+extern int ip_v4_find_src(struct nx_info *, struct rtable **, struct flowi *);
+
 static inline int ip_route_connect(struct rtable **rp, __be32 dst,
                                   __be32 src, u32 tos, int oif, u8 protocol,
                                   __be16 sport, __be16 dport, struct sock *sk,
@@ -158,7 +164,21 @@ static inline int ip_route_connect(struc
                                         .dport = dport } } };
 
        int err;
-       if (!dst || !src) {
+       struct nx_info *nx_info = current->nx_info;
+
+       if (sk)
+               nx_info = sk->sk_nx_info;
+
+       vxdprintk(VXD_CBIT(net, 4),
+               "ip_route_connect(%p) %p,%p;%lx",
+               sk, nx_info, sk->sk_socket,
+               (sk->sk_socket?sk->sk_socket->flags:0));
+
+       err = ip_v4_find_src(nx_info, rp, &fl);
+       if (err)
+               return err;
+
+       if (!fl.fl4_dst || !fl.fl4_src) {
                err = __ip_route_output_key(rp, &fl);
                if (err)
                        return err;
diff -NurpP --minimal linux-2.6.22.10/include/net/sock.h linux-2.6.22.10-vs2.3.0.29/include/net/sock.h
--- linux-2.6.22.10/include/net/sock.h  2007-07-09 13:20:02 +0200
+++ linux-2.6.22.10-vs2.3.0.29/include/net/sock.h       2007-08-05 20:53:13 +0200
@@ -119,6 +119,10 @@ struct sock_common {
        atomic_t                skc_refcnt;
        unsigned int            skc_hash;
        struct proto            *skc_prot;
+       xid_t                   skc_xid;
+       struct vx_info          *skc_vx_info;
+       nid_t                   skc_nid;
+       struct nx_info          *skc_nx_info;
 };
 
 /**
@@ -195,6 +199,10 @@ struct sock {
 #define sk_refcnt              __sk_common.skc_refcnt
 #define sk_hash                        __sk_common.skc_hash
 #define sk_prot                        __sk_common.skc_prot
+#define sk_xid                 __sk_common.skc_xid
+#define sk_vx_info             __sk_common.skc_vx_info
+#define sk_nid                 __sk_common.skc_nid
+#define sk_nx_info             __sk_common.skc_nx_info
        unsigned char           sk_shutdown : 2,
                                sk_no_check : 2,
                                sk_userlocks : 4;
diff -NurpP --minimal linux-2.6.22.10/init/main.c linux-2.6.22.10-vs2.3.0.29/init/main.c
--- linux-2.6.22.10/init/main.c 2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/init/main.c      2007-08-05 20:53:13 +0200
@@ -55,6 +55,7 @@
 #include <linux/pid_namespace.h>
 #include <linux/device.h>
 #include <linux/kthread.h>
+#include <linux/vserver/percpu.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -364,12 +365,14 @@ EXPORT_SYMBOL(__per_cpu_offset);
 
 static void __init setup_per_cpu_areas(void)
 {
-       unsigned long size, i;
+       unsigned long size, vspc, i;
        char *ptr;
        unsigned long nr_possible_cpus = num_possible_cpus();
 
+       vspc = PERCPU_PERCTX * CONFIG_VSERVER_CONTEXTS;
+
        /* Copy section for each CPU (we discard the original) */
-       size = ALIGN(PERCPU_ENOUGH_ROOM, PAGE_SIZE);
+       size = ALIGN(PERCPU_ENOUGH_ROOM + vspc, PAGE_SIZE);
        ptr = alloc_bootmem_pages(size * nr_possible_cpus);
 
        for_each_possible_cpu(i) {
diff -NurpP --minimal linux-2.6.22.10/ipc/mqueue.c linux-2.6.22.10-vs2.3.0.29/ipc/mqueue.c
--- linux-2.6.22.10/ipc/mqueue.c        2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/ipc/mqueue.c     2007-10-01 14:57:41 +0200
@@ -29,6 +29,8 @@
 #include <linux/audit.h>
 #include <linux/signal.h>
 #include <linux/mutex.h>
+#include <linux/vs_context.h>
+#include <linux/vs_limit.h>
 
 #include <net/sock.h>
 #include "util.h"
@@ -151,17 +153,20 @@ static struct inode *mqueue_get_inode(st
                        spin_lock(&mq_lock);
                        if (u->mq_bytes + mq_bytes < u->mq_bytes ||
                            u->mq_bytes + mq_bytes >
-                           p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur) {
+                           p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur ||
+                           !vx_ipcmsg_avail(p->vx_info, mq_bytes)) {
                                spin_unlock(&mq_lock);
                                goto out_inode;
                        }
                        u->mq_bytes += mq_bytes;
+                       vx_ipcmsg_add(p->vx_info, u, mq_bytes);
                        spin_unlock(&mq_lock);
 
                        info->messages = kmalloc(mq_msg_tblsz, GFP_KERNEL);
                        if (!info->messages) {
                                spin_lock(&mq_lock);
                                u->mq_bytes -= mq_bytes;
+                               vx_ipcmsg_sub(p->vx_info, u, mq_bytes);
                                spin_unlock(&mq_lock);
                                goto out_inode;
                        }
@@ -257,10 +262,14 @@ static void mqueue_delete_inode(struct i
                   (info->attr.mq_maxmsg * info->attr.mq_msgsize));
        user = info->user;
        if (user) {
+               struct vx_info *vxi = lookup_vx_info(user->xid);
+
                spin_lock(&mq_lock);
                user->mq_bytes -= mq_bytes;
+               vx_ipcmsg_sub(vxi, user, mq_bytes);
                queues_count--;
                spin_unlock(&mq_lock);
+               put_vx_info(vxi);
                free_uid(user);
        }
 }
@@ -748,7 +757,7 @@ asmlinkage long sys_mq_unlink(const char
        if (inode)
                atomic_inc(&inode->i_count);
 
-       err = vfs_unlink(dentry->d_parent->d_inode, dentry);
+       err = vfs_unlink(dentry->d_parent->d_inode, dentry, NULL);
 out_err:
        dput(dentry);
 
diff -NurpP --minimal linux-2.6.22.10/ipc/msg.c linux-2.6.22.10-vs2.3.0.29/ipc/msg.c
--- linux-2.6.22.10/ipc/msg.c   2007-02-06 03:01:55 +0100
+++ linux-2.6.22.10-vs2.3.0.29/ipc/msg.c        2007-08-05 20:53:13 +0200
@@ -36,6 +36,7 @@
 #include <linux/seq_file.h>
 #include <linux/mutex.h>
 #include <linux/nsproxy.h>
+#include <linux/vs_base.h>
 
 #include <asm/current.h>
 #include <asm/uaccess.h>
@@ -149,6 +150,7 @@ static int newque (struct ipc_namespace 
 
        msq->q_perm.mode = msgflg & S_IRWXUGO;
        msq->q_perm.key = key;
+       msq->q_perm.xid = vx_current_xid();
 
        msq->q_perm.security = NULL;
        retval = security_msg_queue_alloc(msq);
diff -NurpP --minimal linux-2.6.22.10/ipc/sem.c linux-2.6.22.10-vs2.3.0.29/ipc/sem.c
--- linux-2.6.22.10/ipc/sem.c   2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/ipc/sem.c        2007-08-05 20:53:13 +0200
@@ -82,6 +82,8 @@
 #include <linux/seq_file.h>
 #include <linux/mutex.h>
 #include <linux/nsproxy.h>
+#include <linux/vs_base.h>
+#include <linux/vs_limit.h>
 
 #include <asm/uaccess.h>
 #include "util.h"
@@ -229,6 +231,7 @@ static int newary (struct ipc_namespace 
 
        sma->sem_perm.mode = (semflg & S_IRWXUGO);
        sma->sem_perm.key = key;
+       sma->sem_perm.xid = vx_current_xid();
 
        sma->sem_perm.security = NULL;
        retval = security_sem_alloc(sma);
@@ -244,6 +247,9 @@ static int newary (struct ipc_namespace 
                return -ENOSPC;
        }
        ns->used_sems += nsems;
+       /* FIXME: obsoleted? */
+       vx_semary_inc(sma);
+       vx_nsems_add(sma, nsems);
 
        sma->sem_id = sem_buildid(ns, id, sma->sem_perm.seq);
        sma->sem_base = (struct sem *) &sma[1];
@@ -525,6 +531,9 @@ static void freeary (struct ipc_namespac
        sem_unlock(sma);
 
        ns->used_sems -= sma->sem_nsems;
+       /* FIXME: obsoleted? */
+       vx_nsems_sub(sma, sma->sem_nsems);
+       vx_semary_dec(sma);
        size = sizeof (*sma) + sma->sem_nsems * sizeof (struct sem);
        security_sem_free(sma);
        ipc_rcu_putref(sma);
diff -NurpP --minimal linux-2.6.22.10/ipc/shm.c linux-2.6.22.10-vs2.3.0.29/ipc/shm.c
--- linux-2.6.22.10/ipc/shm.c   2007-10-30 01:57:14 +0100
+++ linux-2.6.22.10-vs2.3.0.29/ipc/shm.c        2007-10-01 14:57:41 +0200
@@ -38,6 +38,8 @@
 #include <linux/mutex.h>
 #include <linux/nsproxy.h>
 #include <linux/mount.h>
+#include <linux/vs_context.h>
+#include <linux/vs_limit.h>
 
 #include <asm/uaccess.h>
 
@@ -185,7 +187,12 @@ static void shm_open(struct vm_area_stru
  */
 static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
 {
-       ns->shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
+       struct vx_info *vxi = lookup_vx_info(shp->shm_perm.xid);
+       int numpages = (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
+
+       vx_ipcshm_sub(vxi, shp, numpages);
+       ns->shm_tot -= numpages;
+
        shm_rmid(ns, shp->id);
        shm_unlock(shp);
        if (!is_file_hugepages(shp->shm_file))
@@ -195,6 +202,7 @@ static void shm_destroy(struct ipc_names
                                                shp->mlock_user);
        fput (shp->shm_file);
        security_shm_free(shp);
+       put_vx_info(vxi);
        ipc_rcu_putref(shp);
 }
 
@@ -351,11 +359,15 @@ static int newseg (struct ipc_namespace 
        if (ns->shm_tot + numpages > ns->shm_ctlall)
                return -ENOSPC;
 
+       if (!vx_ipcshm_avail(current->vx_info, numpages))
+               return -ENOSPC;
+
        shp = ipc_rcu_alloc(sizeof(*shp));
        if (!shp)
                return -ENOMEM;
 
        shp->shm_perm.key = key;
+       shp->shm_perm.xid = vx_current_xid();
        shp->shm_perm.mode = (shmflg & S_IRWXUGO);
        shp->mlock_user = NULL;
 
@@ -406,6 +418,7 @@ static int newseg (struct ipc_namespace 
        file->f_dentry->d_inode->i_ino = shp->id;
 
        ns->shm_tot += numpages;
+       vx_ipcshm_add(current->vx_info, key, numpages);
        shm_unlock(shp);
        return shp->id;
 
diff -NurpP --minimal linux-2.6.22.10/ipc/util.c linux-2.6.22.10-vs2.3.0.29/ipc/util.c
--- linux-2.6.22.10/ipc/util.c  2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/ipc/util.c       2007-08-05 20:53:13 +0200
@@ -32,6 +32,8 @@
 #include <linux/proc_fs.h>
 #include <linux/audit.h>
 #include <linux/nsproxy.h>
+#include <linux/vs_base.h>
+#include <linux/vserver/global.h>
 
 #include <asm/unistd.h>
 
@@ -72,6 +74,7 @@ static struct ipc_namespace *clone_ipc_n
                goto err_shm;
 
        kref_init(&ns->kref);
+       atomic_inc(&vs_global_ipc_ns);
        return ns;
 
 err_shm:
@@ -108,6 +111,7 @@ void free_ipc_ns(struct kref *kref)
        sem_exit_ns(ns);
        msg_exit_ns(ns);
        shm_exit_ns(ns);
+       atomic_dec(&vs_global_ipc_ns);
        kfree(ns);
 }
 #else
diff -NurpP --minimal linux-2.6.22.10/kernel/Makefile linux-2.6.22.10-vs2.3.0.29/kernel/Makefile
--- linux-2.6.22.10/kernel/Makefile     2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/Makefile  2007-08-05 20:53:13 +0200
@@ -10,6 +10,8 @@ obj-y     = sched.o fork.o exec_domain.o
            kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
            hrtimer.o rwsem.o latency.o nsproxy.o srcu.o die_notifier.o
 
+obj-y    += vserver/
+
 obj-$(CONFIG_STACKTRACE) += stacktrace.o
 obj-y += time/
 obj-$(CONFIG_DEBUG_MUTEXES) += mutex-debug.o
diff -NurpP --minimal linux-2.6.22.10/kernel/capability.c linux-2.6.22.10-vs2.3.0.29/kernel/capability.c
--- linux-2.6.22.10/kernel/capability.c 2007-05-02 19:25:37 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/capability.c      2007-08-05 20:53:13 +0200
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
+#include <linux/vs_context.h>
 #include <asm/uaccess.h>
 
 unsigned securebits = SECUREBITS_DEFAULT; /* systemwide security settings */
@@ -103,6 +104,8 @@ static inline int cap_set_pg(int pgrp_nr
 
        pgrp = find_pid(pgrp_nr);
        do_each_pid_task(pgrp, PIDTYPE_PGID, g) {
+               if (!vx_check(g->xid, VS_ADMIN_P | VS_IDENT))
+                       continue;
                target = g;
                while_each_thread(g, target) {
                        if (!security_capset_check(target, effective,
@@ -246,8 +249,12 @@ int __capable(struct task_struct *t, int
 }
 EXPORT_SYMBOL(__capable);
 
+#include <linux/vserver/base.h>
 int capable(int cap)
 {
+       /* here for now so we don't require task locking */
+       if (vs_check_bit(VXC_CAP_MASK, cap) && !vx_mcaps(1L << cap))
+               return 0;
        return __capable(current, cap);
 }
 EXPORT_SYMBOL(capable);
diff -NurpP --minimal linux-2.6.22.10/kernel/compat.c linux-2.6.22.10-vs2.3.0.29/kernel/compat.c
--- linux-2.6.22.10/kernel/compat.c     2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/compat.c  2007-08-05 20:53:13 +0200
@@ -846,7 +846,7 @@ asmlinkage long compat_sys_time(compat_t
        compat_time_t i;
        struct timeval tv;
 
-       do_gettimeofday(&tv);
+       vx_gettimeofday(&tv);
        i = tv.tv_sec;
 
        if (tloc) {
@@ -870,7 +870,7 @@ asmlinkage long compat_sys_stime(compat_
        if (err)
                return err;
 
-       do_settimeofday(&tv);
+       vx_settimeofday(&tv);
        return 0;
 }
 
diff -NurpP --minimal linux-2.6.22.10/kernel/exit.c linux-2.6.22.10-vs2.3.0.29/kernel/exit.c
--- linux-2.6.22.10/kernel/exit.c       2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/exit.c    2007-10-01 18:31:46 +0200
@@ -44,6 +44,11 @@
 #include <linux/resource.h>
 #include <linux/blkdev.h>
 #include <linux/task_io_accounting_ops.h>
+#include <linux/vs_limit.h>
+#include <linux/vs_context.h>
+#include <linux/vs_network.h>
+#include <linux/vs_pid.h>
+#include <linux/vserver/global.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -443,9 +448,11 @@ static void close_files(struct files_str
                                        filp_close(file, files);
                                        cond_resched();
                                }
+                               vx_openfd_dec(i);
                        }
                        i++;
                        set >>= 1;
+                       cond_resched();
                }
        }
 }
@@ -525,6 +532,7 @@ static inline void __put_fs_struct(struc
                        dput(fs->altroot);
                        mntput(fs->altrootmnt);
                }
+               atomic_dec(&vs_global_fs);
                kmem_cache_free(fs_cachep, fs);
        }
 }
@@ -596,6 +604,14 @@ static void exit_mm(struct task_struct *
 static inline void
 choose_new_parent(struct task_struct *p, struct task_struct *reaper)
 {
+       /* check for reaper context */
+       vxwprintk((p->xid != reaper->xid) && (reaper != child_reaper(p)),
+               "rogue reaper: %p[%d,#%u] <> %p[%d,#%u]",
+               p, p->pid, p->xid, reaper, reaper->pid, reaper->xid);
+
+       if (p == reaper)
+               reaper = vx_child_reaper(p);
+
        /*
         * Make sure we're not reparenting to ourselves and that
         * the parent is not a zombie.
@@ -687,7 +703,7 @@ forget_original_parent(struct task_struc
        do {
                reaper = next_thread(reaper);
                if (reaper == father) {
-                       reaper = child_reaper(father);
+                       reaper = vx_child_reaper(father);
                        break;
                }
        } while (reaper->exit_state);
@@ -964,6 +980,8 @@ fastcall NORET_TYPE void do_exit(long co
        tsk->exit_code = code;
        proc_exit_connector(tsk);
        exit_task_namespaces(tsk);
+       /* needs to stay before exit_notify() */
+       exit_vx_info_early(tsk, code);
        exit_notify(tsk);
 #ifdef CONFIG_NUMA
        mpol_free(tsk->mempolicy);
@@ -994,6 +1012,10 @@ fastcall NORET_TYPE void do_exit(long co
        if (tsk->splice_pipe)
                __free_pipe_info(tsk->splice_pipe);
 
+       /* needs to stay after exit_notify() */
+       exit_vx_info(tsk, code);
+       exit_nx_info(tsk);
+
        preempt_disable();
        /* causes final put_task_struct in finish_task_switch(). */
        tsk->state = TASK_DEAD;
diff -NurpP --minimal linux-2.6.22.10/kernel/fork.c linux-2.6.22.10-vs2.3.0.29/kernel/fork.c
--- linux-2.6.22.10/kernel/fork.c       2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/fork.c    2007-10-25 17:05:55 +0200
@@ -49,6 +49,11 @@
 #include <linux/delayacct.h>
 #include <linux/taskstats_kern.h>
 #include <linux/random.h>
+#include <linux/vs_context.h>
+#include <linux/vs_network.h>
+#include <linux/vs_limit.h>
+#include <linux/vs_memory.h>
+#include <linux/vserver/global.h>
 
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
@@ -108,6 +113,8 @@ void free_task(struct task_struct *tsk)
 {
        free_thread_info(tsk->stack);
        rt_mutex_debug_task_free(tsk);
+       clr_vx_info(&tsk->vx_info);
+       clr_nx_info(&tsk->nx_info);
        free_task_struct(tsk);
 }
 EXPORT_SYMBOL(free_task);
@@ -215,6 +222,8 @@ static inline int dup_mmap(struct mm_str
        mm->free_area_cache = oldmm->mmap_base;
        mm->cached_hole_size = ~0UL;
        mm->map_count = 0;
+       __set_mm_counter(mm, file_rss, 0);
+       __set_mm_counter(mm, anon_rss, 0);
        cpus_clear(mm->cpu_vm_mask);
        mm->mm_rb = RB_ROOT;
        rb_link = &mm->mm_rb.rb_node;
@@ -226,7 +235,7 @@ static inline int dup_mmap(struct mm_str
 
                if (mpnt->vm_flags & VM_DONTCOPY) {
                        long pages = vma_pages(mpnt);
-                       mm->total_vm -= pages;
+                       vx_vmpages_sub(mm, pages);
                        vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file,
                                                                -pages);
                        continue;
@@ -327,7 +336,7 @@ static inline void mm_free_pgd(struct mm
 
 #include <linux/init_task.h>
 
-static struct mm_struct * mm_init(struct mm_struct * mm)
+static struct mm_struct * mm_init(struct mm_struct * mm, struct vx_info *vxi)
 {
        atomic_set(&mm->mm_users, 1);
        atomic_set(&mm->mm_count, 1);
@@ -335,8 +344,8 @@ static struct mm_struct * mm_init(struct
        INIT_LIST_HEAD(&mm->mmlist);
        mm->core_waiters = 0;
        mm->nr_ptes = 0;
-       set_mm_counter(mm, file_rss, 0);
-       set_mm_counter(mm, anon_rss, 0);
+       __set_mm_counter(mm, file_rss, 0);
+       __set_mm_counter(mm, anon_rss, 0);
        spin_lock_init(&mm->page_table_lock);
        rwlock_init(&mm->ioctx_list_lock);
        mm->ioctx_list = NULL;
@@ -345,6 +354,7 @@ static struct mm_struct * mm_init(struct
 
        if (likely(!mm_alloc_pgd(mm))) {
                mm->def_flags = 0;
+               set_vx_info(&mm->mm_vx_info, vxi);
                return mm;
        }
        free_mm(mm);
@@ -361,7 +371,7 @@ struct mm_struct * mm_alloc(void)
        mm = allocate_mm();
        if (mm) {
                memset(mm, 0, sizeof(*mm));
-               mm = mm_init(mm);
+               mm = mm_init(mm, current->vx_info);
        }
        return mm;
 }
@@ -376,6 +386,7 @@ void fastcall __mmdrop(struct mm_struct 
        BUG_ON(mm == &init_mm);
        mm_free_pgd(mm);
        destroy_context(mm);
+       clr_vx_info(&mm->mm_vx_info);
        free_mm(mm);
 }
 
@@ -490,12 +501,13 @@ static struct mm_struct *dup_mm(struct t
                goto fail_nomem;
 
        memcpy(mm, oldmm, sizeof(*mm));
+       mm->mm_vx_info = NULL;
 
        /* Initializing for Swap token stuff */
        mm->token_priority = 0;
        mm->last_interval = 0;
 
-       if (!mm_init(mm))
+       if (!mm_init(mm, oldmm->mm_vx_info))
                goto fail_nomem;
 
        if (init_new_context(tsk, mm))
@@ -521,6 +533,7 @@ fail_nocontext:
         * If init_new_context() failed, we cannot use mmput() to free the mm
         * because it calls destroy_context()
         */
+       clr_vx_info(&mm->mm_vx_info);
        mm_free_pgd(mm);
        free_mm(mm);
        return NULL;
@@ -591,6 +604,7 @@ static inline struct fs_struct *__copy_f
                        fs->altroot = NULL;
                }
                read_unlock(&old->lock);
+               atomic_inc(&vs_global_fs);
        }
        return fs;
 }
@@ -709,6 +723,8 @@ static struct files_struct *dup_fd(struc
                struct file *f = *old_fds++;
                if (f) {
                        get_file(f);
+                       /* TODO: sum it first for check and performance */
+                       vx_openfd_inc(open_files - i);
                } else {
                        /*
                         * The fd may be claimed in the fd bitmap but not yet
@@ -961,6 +977,8 @@ static struct task_struct *copy_process(
 {
        int retval;
        struct task_struct *p = NULL;
+       struct vx_info *vxi;
+       struct nx_info *nxi;
 
        if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS))
                return ERR_PTR(-EINVAL);
@@ -995,12 +1013,30 @@ static struct task_struct *copy_process(
        DEBUG_LOCKS_WARN_ON(!p->hardirqs_enabled);
        DEBUG_LOCKS_WARN_ON(!p->softirqs_enabled);
 #endif
+       init_vx_info(&p->vx_info, current->vx_info);
+       init_nx_info(&p->nx_info, current->nx_info);
+
+       /* check vserver memory */
+       if (p->mm && !(clone_flags & CLONE_VM)) {
+               if (vx_vmpages_avail(p->mm, p->mm->total_vm))
+                       vx_pages_add(p->vx_info, RLIMIT_AS, p->mm->total_vm);
+               else
+                       goto bad_fork_free;
+       }
+       if (p->mm && vx_flags(VXF_FORK_RSS, 0)) {
+               if (!vx_rss_avail(p->mm, get_mm_counter(p->mm, file_rss)))
+                       goto bad_fork_cleanup_vm;
+       }
+
        retval = -EAGAIN;
+       if (!vx_nproc_avail(1))
+               goto bad_fork_cleanup_vm;
+
        if (atomic_read(&p->user->processes) >=
                        p->signal->rlim[RLIMIT_NPROC].rlim_cur) {
                if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) &&
                                p->user != &root_user)
-                       goto bad_fork_free;
+                       goto bad_fork_cleanup_vm;
        }
 
        atomic_inc(&p->user->__count);
@@ -1265,6 +1301,18 @@ static struct task_struct *copy_process(
 
        total_forks++;
        spin_unlock(&current->sighand->siglock);
+
+       /* p is copy of current */
+       vxi = p->vx_info;
+       if (vxi) {
+               claim_vx_info(vxi, p);
+               atomic_inc(&vxi->cvirt.nr_threads);
+               atomic_inc(&vxi->cvirt.total_forks);
+               vx_nproc_inc(p);
+       }
+       nxi = p->nx_info;
+       if (nxi)
+               claim_nx_info(nxi, p);
        write_unlock_irq(&tasklist_lock);
        proc_fork_connector(p);
        return p;
@@ -1306,6 +1354,9 @@ bad_fork_cleanup_count:
        put_group_info(p->group_info);
        atomic_dec(&p->user->processes);
        free_uid(p->user);
+bad_fork_cleanup_vm:
+       if (p->mm && !(clone_flags & CLONE_VM))
+               vx_pages_sub(p->vx_info, RLIMIT_AS, p->mm->total_vm);
 bad_fork_free:
        free_task(p);
 fork_out:
@@ -1367,6 +1418,15 @@ long do_fork(unsigned long clone_flags,
 
        if (!pid)
                return -EAGAIN;
+
+       /* kernel threads are host only */
+       if ((clone_flags & CLONE_KTHREAD) &&
+               !vx_capable(CAP_SYS_ADMIN, VXC_KTHREAD)) {
+               vxwprintk_task(1, "tried to spawn a kernel thread.");
+               free_pid(pid);
+               return -EPERM;
+       }
+
        nr = pid->nr;
        if (unlikely(current->ptrace)) {
                trace = fork_traceflag (clone_flags);
diff -NurpP --minimal linux-2.6.22.10/kernel/kthread.c linux-2.6.22.10-vs2.3.0.29/kernel/kthread.c
--- linux-2.6.22.10/kernel/kthread.c    2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/kthread.c 2007-08-05 20:53:13 +0200
@@ -96,7 +96,7 @@ static void create_kthread(struct kthrea
        } else {
                wait_for_completion(&create->started);
                read_lock(&tasklist_lock);
-               create->result = find_task_by_pid(pid);
+               create->result = find_task_by_real_pid(pid);
                read_unlock(&tasklist_lock);
        }
        complete(&create->done);
diff -NurpP --minimal linux-2.6.22.10/kernel/nsproxy.c linux-2.6.22.10-vs2.3.0.29/kernel/nsproxy.c
--- linux-2.6.22.10/kernel/nsproxy.c    2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/nsproxy.c 2007-08-05 20:53:13 +0200
@@ -20,14 +20,11 @@
 #include <linux/mnt_namespace.h>
 #include <linux/utsname.h>
 #include <linux/pid_namespace.h>
+#include <linux/vserver/global.h>
+#include <linux/vserver/debug.h>
 
 struct nsproxy init_nsproxy = INIT_NSPROXY(init_nsproxy);
 
-static inline void get_nsproxy(struct nsproxy *ns)
-{
-       atomic_inc(&ns->count);
-}
-
 void get_task_namespaces(struct task_struct *tsk)
 {
        struct nsproxy *ns = tsk->nsproxy;
@@ -46,6 +43,9 @@ static inline struct nsproxy *clone_nspr
        ns = kmemdup(orig, sizeof(struct nsproxy), GFP_KERNEL);
        if (ns)
                atomic_set(&ns->count, 1);
+       vxdprintk(VXD_CBIT(space, 2), "clone_nsproxy(%p[%u] = %p[1]",
+               orig, atomic_read(&orig->count), ns);
+       atomic_inc(&vs_global_nsproxy);
        return ns;
 }
 
@@ -54,28 +54,32 @@ static inline struct nsproxy *clone_nspr
  * Return the newly created nsproxy.  Do not attach this to the task,
  * leave it to the caller to do proper locking and attach it to task.
  */
-static struct nsproxy *create_new_namespaces(int flags, struct task_struct *tsk,
+static struct nsproxy *unshare_namespaces(int flags, struct nsproxy *orig,
                        struct fs_struct *new_fs)
 {
        struct nsproxy *new_nsp;
 
-       new_nsp = clone_nsproxy(tsk->nsproxy);
+       vxdprintk(VXD_CBIT(space, 4),
+               "unshare_namespaces(0x%08x,%p,%p)",
+               flags, orig, new_fs);
+
+       new_nsp = clone_nsproxy(orig);
        if (!new_nsp)
                return ERR_PTR(-ENOMEM);
 
-       new_nsp->mnt_ns = copy_mnt_ns(flags, tsk->nsproxy->mnt_ns, new_fs);
+       new_nsp->mnt_ns = copy_mnt_ns(flags, orig->mnt_ns, new_fs);
        if (IS_ERR(new_nsp->mnt_ns))
                goto out_ns;
 
-       new_nsp->uts_ns = copy_utsname(flags, tsk->nsproxy->uts_ns);
+       new_nsp->uts_ns = copy_utsname(flags, orig->uts_ns);
        if (IS_ERR(new_nsp->uts_ns))
                goto out_uts;
 
-       new_nsp->ipc_ns = copy_ipcs(flags, tsk->nsproxy->ipc_ns);
+       new_nsp->ipc_ns = copy_ipcs(flags, orig->ipc_ns);
        if (IS_ERR(new_nsp->ipc_ns))
                goto out_ipc;
 
-       new_nsp->pid_ns = copy_pid_ns(flags, tsk->nsproxy->pid_ns);
+       new_nsp->pid_ns = copy_pid_ns(flags, orig->pid_ns);
        if (IS_ERR(new_nsp->pid_ns))
                goto out_pid;
 
@@ -95,6 +99,33 @@ out_ns:
        return ERR_PTR(-ENOMEM);
 }
 
+static struct nsproxy *create_new_namespaces(int flags, struct task_struct *tsk,
+                       struct fs_struct *new_fs)
+{
+       return unshare_namespaces(flags, tsk->nsproxy, new_fs);
+}
+
+/*
+ * copies the nsproxy, setting refcount to 1, and grabbing a
+ * reference to all contained namespaces.
+ */
+struct nsproxy *copy_nsproxy(struct nsproxy *orig)
+{
+       struct nsproxy *ns = clone_nsproxy(orig);
+
+       if (ns) {
+               if (ns->mnt_ns)
+                       get_mnt_ns(ns->mnt_ns);
+               if (ns->uts_ns)
+                       get_uts_ns(ns->uts_ns);
+               if (ns->ipc_ns)
+                       get_ipc_ns(ns->ipc_ns);
+               if (ns->pid_ns)
+                       get_pid_ns(ns->pid_ns);
+       }
+       return ns;
+}
+
 /*
  * called from clone.  This now handles copy for nsproxy and all
  * namespaces therein.
@@ -102,9 +133,12 @@ out_ns:
 int copy_namespaces(int flags, struct task_struct *tsk)
 {
        struct nsproxy *old_ns = tsk->nsproxy;
-       struct nsproxy *new_ns;
+       struct nsproxy *new_ns = NULL;
        int err = 0;
 
+       vxdprintk(VXD_CBIT(space, 7), "copy_namespaces(0x%08x,%p[%p])",
+               flags, tsk, old_ns);
+
        if (!old_ns)
                return 0;
 
@@ -127,6 +161,9 @@ int copy_namespaces(int flags, struct ta
        tsk->nsproxy = new_ns;
 out:
        put_nsproxy(old_ns);
+       vxdprintk(VXD_CBIT(space, 3),
+               "copy_namespaces(0x%08x,%p[%p]) = %d [%p]",
+               flags, tsk, old_ns, err, new_ns);
        return err;
 }
 
@@ -140,6 +177,7 @@ void free_nsproxy(struct nsproxy *ns)
                put_ipc_ns(ns->ipc_ns);
        if (ns->pid_ns)
                put_pid_ns(ns->pid_ns);
+       atomic_dec(&vs_global_nsproxy);
        kfree(ns);
 }
 
@@ -152,6 +190,10 @@ int unshare_nsproxy_namespaces(unsigned 
 {
        int err = 0;
 
+       vxdprintk(VXD_CBIT(space, 4),
+               "unshare_nsproxy_namespaces(0x%08lx,[%p])",
+               unshare_flags, current->nsproxy);
+
        if (!(unshare_flags & (CLONE_NEWNS | CLONE_NEWUTS | CLONE_NEWIPC)))
                return 0;
 
diff -NurpP --minimal linux-2.6.22.10/kernel/pid.c linux-2.6.22.10-vs2.3.0.29/kernel/pid.c
--- linux-2.6.22.10/kernel/pid.c        2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/pid.c     2007-08-05 20:53:13 +0200
@@ -28,6 +28,7 @@
 #include <linux/hash.h>
 #include <linux/pid_namespace.h>
 #include <linux/init_task.h>
+#include <linux/vs_pid.h>
 
 #define pid_hashfn(nr) hash_long((unsigned long)nr, pidhash_shift)
 static struct hlist_head *pid_hash;
@@ -295,6 +296,9 @@ void fastcall transfer_pid(struct task_s
 struct task_struct * fastcall pid_task(struct pid *pid, enum pid_type type)
 {
        struct task_struct *result = NULL;
+
+       if (type == PIDTYPE_REALPID)
+               type = PIDTYPE_PID;
        if (pid) {
                struct hlist_node *first;
                first = rcu_dereference(pid->tasks[type].first);
@@ -309,7 +313,17 @@ struct task_struct * fastcall pid_task(s
  */
 struct task_struct *find_task_by_pid_type(int type, int nr)
 {
-       return pid_task(find_pid(nr), type);
+       struct task_struct *task;
+
+       if (type == PIDTYPE_PID)
+               nr = vx_rmap_pid(nr);
+
+       task = pid_task(find_pid(nr), type);
+       if (task && (type != PIDTYPE_REALPID) &&
+               /* maybe VS_WATCH_P in the future? */
+               !vx_check(task->xid, VS_WATCH|VS_IDENT))
+               return NULL;
+       return task;
 }
 
 EXPORT_SYMBOL(find_task_by_pid_type);
diff -NurpP --minimal linux-2.6.22.10/kernel/posix-timers.c linux-2.6.22.10-vs2.3.0.29/kernel/posix-timers.c
--- linux-2.6.22.10/kernel/posix-timers.c       2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/posix-timers.c    2007-10-01 15:41:45 +0200
@@ -47,6 +47,7 @@
 #include <linux/wait.h>
 #include <linux/workqueue.h>
 #include <linux/module.h>
+#include <linux/vs_context.h>
 
 /*
  * Management arrays for POSIX timers.  Timers are kept in slab memory
@@ -297,6 +298,12 @@ void do_schedule_next_timer(struct sigin
 
 int posix_timer_event(struct k_itimer *timr,int si_private)
 {
+       struct vx_info_save vxis;
+       struct vx_info *vxi;
+       int ret;
+
+       vxi = task_get_vx_info(timr->it_process);
+       enter_vx_info(vxi, &vxis);
        memset(&timr->sigq->info, 0, sizeof(siginfo_t));
        timr->sigq->info.si_sys_private = si_private;
        /* Send signal to the process that owns this timer.*/
@@ -309,11 +316,11 @@ int posix_timer_event(struct k_itimer *t
 
        if (timr->it_sigev_notify & SIGEV_THREAD_ID) {
                struct task_struct *leader;
-               int ret = send_sigqueue(timr->it_sigev_signo, timr->sigq,
-                                       timr->it_process);
 
+               ret = send_sigqueue(timr->it_sigev_signo, timr->sigq,
+                                   timr->it_process);
                if (likely(ret >= 0))
-                       return ret;
+                       goto out;
 
                timr->it_sigev_notify = SIGEV_SIGNAL;
                leader = timr->it_process->group_leader;
@@ -321,8 +328,12 @@ int posix_timer_event(struct k_itimer *t
                timr->it_process = leader;
        }
 
-       return send_group_sigqueue(timr->it_sigev_signo, timr->sigq,
+       ret = send_group_sigqueue(timr->it_sigev_signo, timr->sigq,
                                   timr->it_process);
+out:
+       leave_vx_info(&vxis);
+       put_vx_info(vxi);
+       return ret;
 }
 EXPORT_SYMBOL_GPL(posix_timer_event);
 
@@ -402,7 +413,7 @@ static struct task_struct * good_sigeven
        struct task_struct *rtn = current->group_leader;
 
        if ((event->sigev_notify & SIGEV_THREAD_ID ) &&
-               (!(rtn = find_task_by_pid(event->sigev_notify_thread_id)) ||
+               (!(rtn = find_task_by_real_pid(event->sigev_notify_thread_id)) ||
                 rtn->tgid != current->tgid ||
                 (event->sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_SIGNAL))
                return NULL;
diff -NurpP --minimal linux-2.6.22.10/kernel/printk.c linux-2.6.22.10-vs2.3.0.29/kernel/printk.c
--- linux-2.6.22.10/kernel/printk.c     2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/printk.c  2007-08-05 20:53:13 +0200
@@ -31,6 +31,7 @@
 #include <linux/bootmem.h>
 #include <linux/syscalls.h>
 #include <linux/jiffies.h>
+#include <linux/vs_cvirt.h>
 
 #include <asm/uaccess.h>
 
@@ -182,18 +183,13 @@ int do_syslog(int type, char __user *buf
        unsigned long i, j, limit, count;
        int do_clear = 0;
        char c;
-       int error = 0;
+       int error;
 
        error = security_syslog(type);
        if (error)
                return error;
 
-       switch (type) {
-       case 0:         /* Close log */
-               break;
-       case 1:         /* Open log */
-               break;
-       case 2:         /* Read from log */
+       if ((type >= 2) && (type <= 4)) {
                error = -EINVAL;
                if (!buf || len < 0)
                        goto out;
@@ -204,6 +200,16 @@ int do_syslog(int type, char __user *buf
                        error = -EFAULT;
                        goto out;
                }
+       }
+       if (!vx_check(0, VS_ADMIN|VS_WATCH))
+               return vx_do_syslog(type, buf, len);
+
+       switch (type) {
+       case 0:         /* Close log */
+               break;
+       case 1:         /* Open log */
+               break;
+       case 2:         /* Read from log */
                error = wait_event_interruptible(log_wait,
                                                        (log_start - log_end));
                if (error)
@@ -228,16 +234,6 @@ int do_syslog(int type, char __user *buf
                do_clear = 1;
                /* FALL THRU */
        case 3:         /* Read last kernel messages */
-               error = -EINVAL;
-               if (!buf || len < 0)
-                       goto out;
-               error = 0;
-               if (!len)
-                       goto out;
-               if (!access_ok(VERIFY_WRITE, buf, len)) {
-                       error = -EFAULT;
-                       goto out;
-               }
                count = len;
                if (count > log_buf_len)
                        count = log_buf_len;
diff -NurpP --minimal linux-2.6.22.10/kernel/ptrace.c linux-2.6.22.10-vs2.3.0.29/kernel/ptrace.c
--- linux-2.6.22.10/kernel/ptrace.c     2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/ptrace.c  2007-08-05 20:53:13 +0200
@@ -19,6 +19,7 @@
 #include <linux/security.h>
 #include <linux/signal.h>
 #include <linux/audit.h>
+#include <linux/vs_context.h>
 
 #include <asm/pgtable.h>
 #include <asm/uaccess.h>
@@ -145,6 +146,11 @@ static int may_attach(struct task_struct
                dumpable = task->mm->dumpable;
        if (!dumpable && !capable(CAP_SYS_PTRACE))
                return -EPERM;
+       if (!vx_check(task->xid, VS_ADMIN_P|VS_IDENT))
+               return -EPERM;
+       if (!vx_check(task->xid, VS_IDENT) &&
+               !task_vx_flags(task, VXF_STATE_ADMIN, 0))
+               return -EACCES;
 
        return security_ptrace(current, task);
 }
@@ -471,6 +477,10 @@ asmlinkage long sys_ptrace(long request,
                goto out;
        }
 
+       ret = -EPERM;
+       if (!vx_check(vx_task_xid(child), VS_WATCH_P | VS_IDENT))
+               goto out_put_task_struct;
+
        if (request == PTRACE_ATTACH) {
                ret = ptrace_attach(child);
                goto out_put_task_struct;
diff -NurpP --minimal linux-2.6.22.10/kernel/sched.c linux-2.6.22.10-vs2.3.0.29/kernel/sched.c
--- linux-2.6.22.10/kernel/sched.c      2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/sched.c   2007-08-05 20:53:13 +0200
@@ -56,6 +56,8 @@
 
 #include <asm/tlb.h>
 #include <asm/unistd.h>
+#include <linux/vs_sched.h>
+#include <linux/vs_cvirt.h>
 
 /*
  * Scheduler clock - returns current time in nanosec units.
@@ -281,6 +283,16 @@ struct rq {
        struct task_struct *migration_thread;
        struct list_head migration_queue;
 #endif
+       unsigned long norm_time;
+       unsigned long idle_time;
+#ifdef CONFIG_VSERVER_IDLETIME
+       int idle_skip;
+#endif
+#ifdef CONFIG_VSERVER_HARDCPU
+       struct list_head hold_queue;
+       unsigned long nr_onhold;
+       int idle_tokens;
+#endif
 
 #ifdef CONFIG_SCHEDSTATS
        /* latency stats */
@@ -714,6 +726,7 @@ sched_info_switch(struct task_struct *pr
  */
 static void dequeue_task(struct task_struct *p, struct prio_array *array)
 {
+       BUG_ON(p->state & TASK_ONHOLD);
        array->nr_active--;
        list_del(&p->run_list);
        if (list_empty(array->queue + p->prio))
@@ -722,6 +735,7 @@ static void dequeue_task(struct task_str
 
 static void enqueue_task(struct task_struct *p, struct prio_array *array)
 {
+       BUG_ON(p->state & TASK_ONHOLD);
        sched_info_queued(p);
        list_add_tail(&p->run_list, array->queue + p->prio);
        __set_bit(p->prio, array->bitmap);
@@ -735,12 +749,14 @@ static void enqueue_task(struct task_str
  */
 static void requeue_task(struct task_struct *p, struct prio_array *array)
 {
+       BUG_ON(p->state & TASK_ONHOLD);
        list_move_tail(&p->run_list, array->queue + p->prio);
 }
 
 static inline void
 enqueue_task_head(struct task_struct *p, struct prio_array *array)
 {
+       BUG_ON(p->state & TASK_ONHOLD);
        list_add(&p->run_list, array->queue + p->prio);
        __set_bit(p->prio, array->bitmap);
        array->nr_active++;
@@ -769,6 +785,10 @@ static inline int __normal_prio(struct t
        bonus = CURRENT_BONUS(p) - MAX_BONUS / 2;
 
        prio = p->static_prio - bonus;
+
+       /* adjust effective priority */
+       prio = vx_adjust_prio(p, prio, MAX_USER_PRIO);
+
        if (prio < MAX_RT_PRIO)
                prio = MAX_RT_PRIO;
        if (prio > MAX_PRIO-1)
@@ -878,6 +898,9 @@ static int effective_prio(struct task_st
        return p->prio;
 }
 
+#include "sched_mon.h"
+
+
 /*
  * __activate_task - move a task to the runqueue.
  */
@@ -887,6 +910,7 @@ static void __activate_task(struct task_
 
        if (batch_task(p))
                target = rq->expired;
+       vxm_activate_task(p, rq);
        enqueue_task(p, target);
        inc_nr_running(p, rq);
 }
@@ -896,6 +920,7 @@ static void __activate_task(struct task_
  */
 static inline void __activate_idle_task(struct task_struct *p, struct rq *rq)
 {
+       vxm_activate_idle(p, rq);
        enqueue_task_head(p, rq->active);
        inc_nr_running(p, rq);
 }
@@ -1030,19 +1055,30 @@ static void activate_task(struct task_st
        }
        p->timestamp = now;
 out:
+       vx_activate_task(p);
        __activate_task(p, rq);
 }
 
 /*
- * deactivate_task - remove a task from the runqueue.
+ * __deactivate_task - remove a task from the runqueue.
  */
-static void deactivate_task(struct task_struct *p, struct rq *rq)
+static void __deactivate_task(struct task_struct *p, struct rq *rq)
 {
        dec_nr_running(p, rq);
        dequeue_task(p, p->array);
+       vxm_deactivate_task(p, rq);
        p->array = NULL;
 }
 
+static inline
+void deactivate_task(struct task_struct *p, struct rq *rq)
+{
+       vx_deactivate_task(p);
+       __deactivate_task(p, rq);
+}
+
+#include "sched_hard.h"
+
 /*
  * resched_task - mark a task 'to be rescheduled now'.
  *
@@ -1129,6 +1165,7 @@ migrate_task(struct task_struct *p, int 
 {
        struct rq *rq = task_rq(p);
 
+       vxm_migrate_task(p, rq, dest_cpu);
        /*
         * If the task is not on a runqueue (and not running), then
         * it is sufficient to simply update the task's cpu field.
@@ -1518,6 +1555,12 @@ static int try_to_wake_up(struct task_st
 
        rq = task_rq_lock(p, &flags);
        old_state = p->state;
+
+       /* we need to unhold suspended tasks */
+       if (old_state & TASK_ONHOLD) {
+               vx_unhold_task(p, rq);
+               old_state = p->state;
+       }
        if (!(old_state & state))
                goto out;
 
@@ -1625,6 +1668,7 @@ out_activate:
 #endif /* CONFIG_SMP */
        if (old_state == TASK_UNINTERRUPTIBLE) {
                rq->nr_uninterruptible--;
+               vx_uninterruptible_dec(p);
                /*
                 * Tasks on involuntary sleep don't earn
                 * sleep_avg beyond just interactive state.
@@ -1676,7 +1720,7 @@ int fastcall wake_up_state(struct task_s
        return try_to_wake_up(p, state, 0);
 }
 
-static void task_running_tick(struct rq *rq, struct task_struct *p);
+static void task_running_tick(struct rq *rq, struct task_struct *p, int cpu);
 /*
  * Perform scheduler related setup for a newly forked process p.
  * p is forked by current.
@@ -1737,7 +1781,7 @@ void fastcall sched_fork(struct task_str
                 * runqueue lock is not a problem.
                 */
                current->time_slice = 1;
-               task_running_tick(cpu_rq(cpu), current);
+               task_running_tick(cpu_rq(cpu), current, cpu);
        }
        local_irq_enable();
        put_cpu();
@@ -1772,6 +1816,7 @@ void fastcall wake_up_new_task(struct ta
 
        p->prio = effective_prio(p);
 
+       vx_activate_task(p);
        if (likely(cpu == this_cpu)) {
                if (!(clone_flags & CLONE_VM)) {
                        /*
@@ -1783,6 +1828,7 @@ void fastcall wake_up_new_task(struct ta
                                __activate_task(p, rq);
                        else {
                                p->prio = current->prio;
+                               BUG_ON(p->state & TASK_ONHOLD);
                                p->normal_prio = current->normal_prio;
                                list_add_tail(&p->run_list, &current->run_list);
                                p->array = current->array;
@@ -3351,13 +3397,16 @@ static inline int expired_starving(struc
 void account_user_time(struct task_struct *p, cputime_t cputime)
 {
        struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
+       struct vx_info *vxi = p->vx_info;  /* p is _always_ current */
        cputime64_t tmp;
+       int nice = (TASK_NICE(p) > 0);
 
        p->utime = cputime_add(p->utime, cputime);
+       vx_account_user(vxi, cputime, nice);
 
        /* Add user time to cpustat. */
        tmp = cputime_to_cputime64(cputime);
-       if (TASK_NICE(p) > 0)
+       if (nice)
                cpustat->nice = cputime64_add(cpustat->nice, tmp);
        else
                cpustat->user = cputime64_add(cpustat->user, tmp);
@@ -3373,10 +3422,12 @@ void account_system_time(struct task_str
                         cputime_t cputime)
 {
        struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
+       struct vx_info *vxi = p->vx_info;  /* p is _always_ current */
        struct rq *rq = this_rq();
        cputime64_t tmp;
 
        p->stime = cputime_add(p->stime, cputime);
+       vx_account_system(vxi, cputime, (p == rq->idle));
 
        /* Add system time to cpustat. */
        tmp = cputime_to_cputime64(cputime);
@@ -3415,7 +3466,7 @@ void account_steal_time(struct task_stru
                cpustat->steal = cputime64_add(cpustat->steal, tmp);
 }
 
-static void task_running_tick(struct rq *rq, struct task_struct *p)
+static void task_running_tick(struct rq *rq, struct task_struct *p, int cpu)
 {
        if (p->array != rq->active) {
                /* Task has expired but was not scheduled yet */
@@ -3445,7 +3496,7 @@ static void task_running_tick(struct rq 
                }
                goto out_unlock;
        }
-       if (!--p->time_slice) {
+       if (vx_need_resched(p, --p->time_slice, cpu)) {
                dequeue_task(p, rq->active);
                set_tsk_need_resched(p);
                p->prio = effective_prio(p);
@@ -3506,9 +3557,12 @@ void scheduler_tick(void)
        struct rq *rq = cpu_rq(cpu);
 
        update_cpu_clock(p, rq, now);
+       vxm_sync(now, cpu);
 
-       if (!idle_at_tick)
-               task_running_tick(rq, p);
+       if (idle_at_tick)
+               vx_idle_resched(rq);
+       else
+               task_running_tick(rq, p, cpu);
 #ifdef CONFIG_SMP
        update_load(rq);
        rq->idle_at_tick = idle_at_tick;
@@ -3630,14 +3684,25 @@ need_resched_nonpreemptible:
                                unlikely(signal_pending(prev))))
                        prev->state = TASK_RUNNING;
                else {
-                       if (prev->state == TASK_UNINTERRUPTIBLE)
+                       if (prev->state == TASK_UNINTERRUPTIBLE) {
                                rq->nr_uninterruptible++;
+                               vx_uninterruptible_inc(prev);
+                       }
                        deactivate_task(prev, rq);
                }
        }
 
        cpu = smp_processor_id();
+       vx_set_rq_time(rq, jiffies);
+try_unhold:
+       vx_try_unhold(rq, cpu);
+pick_next:
+
        if (unlikely(!rq->nr_running)) {
+               /* can we skip idle time? */
+               if (vx_try_skip(rq, cpu))
+                       goto try_unhold;
+
                idle_balance(cpu, rq);
                if (!rq->nr_running) {
                        next = rq->idle;
@@ -3663,6 +3728,10 @@ need_resched_nonpreemptible:
        queue = array->queue + idx;
        next = list_entry(queue->next, struct task_struct, run_list);
 
+       /* check before we schedule this context */
+       if (!vx_schedule(next, rq, cpu))
+               goto pick_next;
+
        if (!rt_task(next) && interactive_sleep(next->sleep_type)) {
                unsigned long long delta = now - next->timestamp;
                if (unlikely((long long)(now - next->timestamp) < 0))
@@ -4263,7 +4332,7 @@ asmlinkage long sys_nice(int increment)
                nice = 19;
 
        if (increment < 0 && !can_nice(current, nice))
-               return -EPERM;
+               return vx_flags(VXF_IGNEG_NICE, 0) ? 0 : -EPERM;
 
        retval = security_task_setnice(current, nice);
        if (retval)
@@ -4435,6 +4504,7 @@ recheck:
        oldprio = p->prio;
        __setscheduler(p, policy, param->sched_priority);
        if (array) {
+               vx_activate_task(p);
                __activate_task(p, rq);
                /*
                 * Reschedule if we are currently running on this runqueue and
@@ -5188,6 +5258,7 @@ static int __migrate_task(struct task_st
                p->timestamp = p->timestamp - rq_src->most_recent_timestamp
                                + rq_dest->most_recent_timestamp;
                deactivate_task(p, rq_src);
+               vx_activate_task(p);
                __activate_task(p, rq_dest);
                if (TASK_PREEMPTS_CURR(p, rq_dest))
                        resched_task(rq_dest->curr);
@@ -7058,7 +7129,10 @@ void __init sched_init(void)
                INIT_LIST_HEAD(&rq->migration_queue);
 #endif
                atomic_set(&rq->nr_iowait, 0);
-
+#ifdef CONFIG_VSERVER_HARDCPU
+               INIT_LIST_HEAD(&rq->hold_queue);
+               rq->nr_onhold = 0;
+#endif
                for (j = 0; j < 2; j++) {
                        array = rq->arrays + j;
                        for (k = 0; k < MAX_PRIO; k++) {
@@ -7144,6 +7218,7 @@ void normalize_rt_tasks(void)
                        deactivate_task(p, task_rq(p));
                __setscheduler(p, SCHED_NORMAL, 0);
                if (array) {
+                       vx_activate_task(p);
                        __activate_task(p, task_rq(p));
                        resched_task(rq->curr);
                }
diff -NurpP --minimal linux-2.6.22.10/kernel/sched_hard.h linux-2.6.22.10-vs2.3.0.29/kernel/sched_hard.h
--- linux-2.6.22.10/kernel/sched_hard.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/sched_hard.h      2007-08-05 20:53:13 +0200
@@ -0,0 +1,324 @@
+
+#ifdef CONFIG_VSERVER_IDLELIMIT
+
+/*
+ * vx_idle_resched - reschedule after maxidle
+ */
+static inline
+void vx_idle_resched(struct rq *rq)
+{
+       /* maybe have a better criterion for paused */
+       if (!--rq->idle_tokens && !list_empty(&rq->hold_queue))
+               set_need_resched();
+}
+
+#else /* !CONFIG_VSERVER_IDLELIMIT */
+
+#define vx_idle_resched(rq)
+
+#endif /* CONFIG_VSERVER_IDLELIMIT */
+
+
+
+#ifdef CONFIG_VSERVER_IDLETIME
+
+#define vx_set_rq_min_skip(rq, min)            \
+       (rq)->idle_skip = (min)
+
+#define vx_save_min_skip(ret, min, val)                \
+       __vx_save_min_skip(ret, min, val)
+
+static inline
+void __vx_save_min_skip(int ret, int *min, int val)
+{
+       if (ret > -2)
+               return;
+       if ((*min > val) || !*min)
+               *min = val;
+}
+
+static inline
+int vx_try_skip(struct rq *rq, int cpu)
+{
+       /* artificially advance time */
+       if (rq->idle_skip > 0) {
+               vxdprintk(list_empty(&rq->hold_queue),
+                       "hold queue empty on cpu %d", cpu);
+               rq->idle_time += rq->idle_skip;
+               vxm_idle_skip(rq, cpu);
+               return 1;
+       }
+       return 0;
+}
+
+#else /* !CONFIG_VSERVER_IDLETIME */
+
+#define vx_set_rq_min_skip(rq, min)            \
+       ({ int dummy = (min); dummy; })
+
+#define vx_save_min_skip(ret, min, val)
+
+static inline
+int vx_try_skip(struct rq *rq, int cpu)
+{
+       return 0;
+}
+
+#endif /* CONFIG_VSERVER_IDLETIME */
+
+
+
+#ifdef CONFIG_VSERVER_HARDCPU
+
+#define vx_set_rq_max_idle(rq, max)            \
+       (rq)->idle_tokens = (max)
+
+#define vx_save_max_idle(ret, min, val)                \
+       __vx_save_max_idle(ret, min, val)
+
+static inline
+void __vx_save_max_idle(int ret, int *min, int val)
+{
+       if (*min > val)
+               *min = val;
+}
+
+
+/*
+ * vx_hold_task - put a task on the hold queue
+ */
+static inline
+void vx_hold_task(struct task_struct *p, struct rq *rq)
+{
+       __deactivate_task(p, rq);
+       p->state |= TASK_ONHOLD;
+       /* a new one on hold */
+       rq->nr_onhold++;
+       vxm_hold_task(p, rq);
+       list_add_tail(&p->run_list, &rq->hold_queue);
+}
+
+/*
+ * vx_unhold_task - put a task back to the runqueue
+ */
+static inline
+void vx_unhold_task(struct task_struct *p, struct rq *rq)
+{
+       list_del(&p->run_list);
+       /* one less waiting */
+       rq->nr_onhold--;
+       p->state &= ~TASK_ONHOLD;
+       enqueue_task(p, rq->expired);
+       inc_nr_running(p, rq);
+       vxm_unhold_task(p, rq);
+
+       if (p->static_prio < rq->best_expired_prio)
+               rq->best_expired_prio = p->static_prio;
+}
+
+unsigned long nr_onhold(void)
+{
+       unsigned long i, sum = 0;
+
+       for_each_online_cpu(i)
+               sum += cpu_rq(i)->nr_onhold;
+
+       return sum;
+}
+
+
+
+static inline
+int __vx_tokens_avail(struct _vx_sched_pc *sched_pc)
+{
+       return sched_pc->tokens;
+}
+
+static inline
+void __vx_consume_token(struct _vx_sched_pc *sched_pc)
+{
+       sched_pc->tokens--;
+}
+
+static inline
+int vx_need_resched(struct task_struct *p, int slice, int cpu)
+{
+       struct vx_info *vxi = p->vx_info;
+
+       if (vx_info_flags(vxi, VXF_SCHED_HARD|VXF_SCHED_PRIO, 0)) {
+               struct _vx_sched_pc *sched_pc =
+                       &vx_per_cpu(vxi, sched_pc, cpu);
+               int tokens;
+
+               /* maybe we can simplify that to decrement
+                  the token counter unconditional? */
+
+               if ((tokens = __vx_tokens_avail(sched_pc)) > 0)
+                       __vx_consume_token(sched_pc);
+
+               /* for tokens > 0, one token was consumed */
+               if (tokens < 2)
+                       slice = 0;
+       }
+       vxm_need_resched(p, slice, cpu);
+       return (slice == 0);
+}
+
+
+#define vx_set_rq_time(rq, time) do {  \
+       rq->norm_time = time;           \
+} while (0)
+
+
+static inline
+void vx_try_unhold(struct rq *rq, int cpu)
+{
+       struct vx_info *vxi = NULL;
+       struct list_head *l, *n;
+       int maxidle = HZ;
+       int minskip = 0;
+
+       /* nothing to do? what about pause? */
+       if (list_empty(&rq->hold_queue))
+               return;
+
+       list_for_each_safe(l, n, &rq->hold_queue) {
+               int ret, delta_min[2];
+               struct _vx_sched_pc *sched_pc;
+               struct task_struct *p;
+
+               p = list_entry(l, struct task_struct, run_list);
+               /* don't bother with same context */
+               if (vxi == p->vx_info)
+                       continue;
+
+               vxi = p->vx_info;
+               /* ignore paused contexts */
+               if (vx_info_flags(vxi, VXF_SCHED_PAUSE, 0))
+                       continue;
+
+               sched_pc = &vx_per_cpu(vxi, sched_pc, cpu);
+
+               /* recalc tokens */
+               vxm_sched_info(sched_pc, vxi, cpu);
+               ret = vx_tokens_recalc(sched_pc,
+                       &rq->norm_time, &rq->idle_time, delta_min);
+               vxm_tokens_recalc(sched_pc, rq, vxi, cpu);
+
+               if (ret > 0) {
+                       /* we found a runable context */
+                       vx_unhold_task(p, rq);
+                       break;
+               }
+               vx_save_max_idle(ret, &maxidle, delta_min[0]);
+               vx_save_min_skip(ret, &minskip, delta_min[1]);
+       }
+       vx_set_rq_max_idle(rq, maxidle);
+       vx_set_rq_min_skip(rq, minskip);
+       vxm_rq_max_min(rq, cpu);
+}
+
+
+static inline
+int vx_schedule(struct task_struct *next, struct rq *rq, int cpu)
+{
+       struct vx_info *vxi = next->vx_info;
+       struct _vx_sched_pc *sched_pc;
+       int delta_min[2];
+       int flags, ret;
+
+       if (!vxi)
+               return 1;
+
+       flags = vxi->vx_flags;
+
+       if (unlikely(vs_check_flags(flags, VXF_SCHED_PAUSE, 0)))
+               goto put_on_hold;
+       if (!vs_check_flags(flags, VXF_SCHED_HARD | VXF_SCHED_PRIO, 0))
+               return 1;
+
+       sched_pc = &vx_per_cpu(vxi, sched_pc, cpu);
+#ifdef CONFIG_SMP
+       /* update scheduler params */
+       if (cpu_isset(cpu, vxi->sched.update)) {
+               vx_update_sched_param(&vxi->sched, sched_pc);
+               vxm_update_sched(sched_pc, vxi, cpu);
+               cpu_clear(cpu, vxi->sched.update);
+       }
+#endif
+       vxm_sched_info(sched_pc, vxi, cpu);
+       ret  = vx_tokens_recalc(sched_pc,
+               &rq->norm_time, &rq->idle_time, delta_min);
+       vxm_tokens_recalc(sched_pc, rq, vxi, cpu);
+
+       if (!vs_check_flags(flags, VXF_SCHED_HARD, 0))
+               return 1;
+
+       if (unlikely(ret < 0)) {
+               vx_save_max_idle(ret, &rq->idle_tokens, delta_min[0]);
+               vx_save_min_skip(ret, &rq->idle_skip, delta_min[1]);
+               vxm_rq_max_min(rq, cpu);
+       put_on_hold:
+               vx_hold_task(next, rq);
+               return 0;
+       }
+       return 1;
+}
+
+
+#else /* CONFIG_VSERVER_HARDCPU */
+
+static inline
+void vx_hold_task(struct task_struct *p, struct rq *rq)
+{
+       return;
+}
+
+static inline
+void vx_unhold_task(struct task_struct *p, struct rq *rq)
+{
+       return;
+}
+
+unsigned long nr_onhold(void)
+{
+       return 0;
+}
+
+
+static inline
+int vx_need_resched(struct task_struct *p, int slice, int cpu)
+{
+       return (slice == 0);
+}
+
+
+#define vx_set_rq_time(rq, time)
+
+static inline
+void vx_try_unhold(struct rq *rq, int cpu)
+{
+       return;
+}
+
+static inline
+int vx_schedule(struct task_struct *next, struct rq *rq, int cpu)
+{
+       struct vx_info *vxi = next->vx_info;
+       struct _vx_sched_pc *sched_pc;
+       int delta_min[2];
+       int ret;
+
+       if (!vx_info_flags(vxi, VXF_SCHED_PRIO, 0))
+               return 1;
+
+       sched_pc = &vx_per_cpu(vxi, sched_pc, cpu);
+       vxm_sched_info(sched_pc, vxi, cpu);
+       ret  = vx_tokens_recalc(sched_pc,
+               &rq->norm_time, &rq->idle_time, delta_min);
+       vxm_tokens_recalc(sched_pc, rq, vxi, cpu);
+       return 1;
+}
+
+#endif /* CONFIG_VSERVER_HARDCPU */
+
diff -NurpP --minimal linux-2.6.22.10/kernel/sched_mon.h linux-2.6.22.10-vs2.3.0.29/kernel/sched_mon.h
--- linux-2.6.22.10/kernel/sched_mon.h  1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/sched_mon.h       2007-08-05 20:53:13 +0200
@@ -0,0 +1,200 @@
+
+#include <linux/vserver/monitor.h>
+
+#ifdef  CONFIG_VSERVER_MONITOR
+
+#ifdef CONFIG_VSERVER_HARDCPU
+#define HARDCPU(x) (x)
+#else
+#define HARDCPU(x) (0)
+#endif
+
+#ifdef CONFIG_VSERVER_IDLETIME
+#define IDLETIME(x) (x)
+#else
+#define IDLETIME(x) (0)
+#endif
+
+struct _vx_mon_entry *vxm_advance(int cpu);
+
+
+static inline
+void   __vxm_basic(struct _vx_mon_entry *entry, xid_t xid, int type)
+{
+       entry->type = type;
+       entry->xid = xid;
+}
+
+static inline
+void   __vxm_sync(int cpu)
+{
+       struct _vx_mon_entry *entry = vxm_advance(cpu);
+
+       __vxm_basic(entry, 0, VXM_SYNC);
+       entry->ev.sec = xtime.tv_sec;
+       entry->ev.nsec = xtime.tv_nsec;
+}
+
+static inline
+void   __vxm_task(struct task_struct *p, int type)
+{
+       struct _vx_mon_entry *entry = vxm_advance(task_cpu(p));
+
+       __vxm_basic(entry, p->xid, type);
+       entry->ev.tsk.pid = p->pid;
+       entry->ev.tsk.state = p->state;
+}
+
+static inline
+void   __vxm_sched(struct _vx_sched_pc *s, struct vx_info *vxi, int cpu)
+{
+       struct _vx_mon_entry *entry = vxm_advance(cpu);
+
+       __vxm_basic(entry, vxi->vx_id, (VXM_SCHED | s->flags));
+       entry->sd.tokens = s->tokens;
+       entry->sd.norm_time = s->norm_time;
+       entry->sd.idle_time = s->idle_time;
+}
+
+static inline
+void   __vxm_rqinfo1(struct rq *q, int cpu)
+{
+       struct _vx_mon_entry *entry = vxm_advance(cpu);
+
+       entry->type = VXM_RQINFO_1;
+       entry->xid = ((unsigned long)q >> 16) & 0xffff;
+       entry->q1.running = q->nr_running;
+       entry->q1.onhold = HARDCPU(q->nr_onhold);
+       entry->q1.iowait = atomic_read(&q->nr_iowait);
+       entry->q1.uintr = q->nr_uninterruptible;
+       entry->q1.idle_tokens = IDLETIME(q->idle_tokens);
+}
+
+static inline
+void   __vxm_rqinfo2(struct rq *q, int cpu)
+{
+       struct _vx_mon_entry *entry = vxm_advance(cpu);
+
+       entry->type = VXM_RQINFO_2;
+       entry->xid = (unsigned long)q & 0xffff;
+       entry->q2.norm_time = q->norm_time;
+       entry->q2.idle_time = q->idle_time;
+       entry->q2.idle_skip = IDLETIME(q->idle_skip);
+}
+
+static inline
+void   __vxm_update(struct _vx_sched_pc *s, struct vx_info *vxi, int cpu)
+{
+       struct _vx_mon_entry *entry = vxm_advance(cpu);
+
+       __vxm_basic(entry, vxi->vx_id, VXM_UPDATE);
+       entry->ev.tokens = s->tokens;
+}
+
+static inline
+void   __vxm_update1(struct _vx_sched_pc *s, struct vx_info *vxi, int cpu)
+{
+       struct _vx_mon_entry *entry = vxm_advance(cpu);
+
+       __vxm_basic(entry, vxi->vx_id, VXM_UPDATE_1);
+       entry->u1.tokens_max = s->tokens_max;
+       entry->u1.fill_rate = s->fill_rate[0];
+       entry->u1.interval = s->interval[0];
+}
+
+static inline
+void   __vxm_update2(struct _vx_sched_pc *s, struct vx_info *vxi, int cpu)
+{
+       struct _vx_mon_entry *entry = vxm_advance(cpu);
+
+       __vxm_basic(entry, vxi->vx_id, VXM_UPDATE_2);
+       entry->u2.tokens_min = s->tokens_min;
+       entry->u2.fill_rate = s->fill_rate[1];
+       entry->u2.interval = s->interval[1];
+}
+
+
+#define        vxm_activate_task(p,q)          __vxm_task(p, VXM_ACTIVATE)
+#define        vxm_activate_idle(p,q)          __vxm_task(p, VXM_IDLE)
+#define        vxm_deactivate_task(p,q)        __vxm_task(p, VXM_DEACTIVATE)
+#define        vxm_hold_task(p,q)              __vxm_task(p, VXM_HOLD)
+#define        vxm_unhold_task(p,q)            __vxm_task(p, VXM_UNHOLD)
+
+static inline
+void   vxm_migrate_task(struct task_struct *p, struct rq *rq, int dest)
+{
+       __vxm_task(p, VXM_MIGRATE);
+       __vxm_rqinfo1(rq, task_cpu(p));
+       __vxm_rqinfo2(rq, task_cpu(p));
+}
+
+static inline
+void   vxm_idle_skip(struct rq *rq, int cpu)
+{
+       __vxm_rqinfo1(rq, cpu);
+       __vxm_rqinfo2(rq, cpu);
+}
+
+static inline
+void   vxm_need_resched(struct task_struct *p, int slice, int cpu)
+{
+       if (slice)
+               return;
+
+       __vxm_task(p, VXM_RESCHED);
+}
+
+static inline
+void   vxm_sync(unsigned long now, int cpu)
+{
+       if (!CONFIG_VSERVER_MONITOR_SYNC ||
+               (now % CONFIG_VSERVER_MONITOR_SYNC))
+               return;
+
+       __vxm_sync(cpu);
+}
+
+#define        vxm_sched_info(s,v,c)           __vxm_sched(s,v,c)
+
+static inline
+void   vxm_tokens_recalc(struct _vx_sched_pc *s, struct rq *rq,
+       struct vx_info *vxi, int cpu)
+{
+       __vxm_sched(s, vxi, cpu);
+       __vxm_rqinfo2(rq, cpu);
+}
+
+static inline
+void   vxm_update_sched(struct _vx_sched_pc *s, struct vx_info *vxi, int cpu)
+{
+       __vxm_sched(s, vxi, cpu);
+       __vxm_update(s, vxi, cpu);
+       __vxm_update1(s, vxi, cpu);
+       __vxm_update2(s, vxi, cpu);
+}
+
+static inline
+void   vxm_rq_max_min(struct rq *rq, int cpu)
+{
+       __vxm_rqinfo1(rq, cpu);
+       __vxm_rqinfo2(rq, cpu);
+}
+
+#else  /* CONFIG_VSERVER_MONITOR */
+
+#define        vxm_activate_task(t,q)          do { } while (0)
+#define        vxm_activate_idle(t,q)          do { } while (0)
+#define        vxm_deactivate_task(t,q)        do { } while (0)
+#define        vxm_hold_task(t,q)              do { } while (0)
+#define        vxm_unhold_task(t,q)            do { } while (0)
+#define        vxm_migrate_task(t,q,d)         do { } while (0)
+#define        vxm_idle_skip(q,c)              do { } while (0)
+#define        vxm_need_resched(t,s,c)         do { } while (0)
+#define        vxm_sync(s,c)                   do { } while (0)
+#define        vxm_sched_info(s,v,c)           do { } while (0)
+#define        vxm_tokens_recalc(s,q,v,c)      do { } while (0)
+#define        vxm_update_sched(s,v,c)         do { } while (0)
+#define        vxm_rq_max_min(q,c)             do { } while (0)
+
+#endif /* CONFIG_VSERVER_MONITOR */
+
diff -NurpP --minimal linux-2.6.22.10/kernel/signal.c linux-2.6.22.10-vs2.3.0.29/kernel/signal.c
--- linux-2.6.22.10/kernel/signal.c     2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/signal.c  2007-09-30 14:58:01 +0200
@@ -26,6 +26,8 @@
 #include <linux/freezer.h>
 #include <linux/pid_namespace.h>
 #include <linux/nsproxy.h>
+#include <linux/vs_context.h>
+#include <linux/vs_pid.h>
 
 #include <asm/param.h>
 #include <asm/uaccess.h>
@@ -523,19 +525,34 @@ static int check_kill_permission(int sig
        if (!valid_signal(sig))
                return error;
 
+       if ((info != SEND_SIG_NOINFO) &&
+               (is_si_special(info) || !SI_FROMUSER(info)))
+               goto skip;
+
+       vxdprintk(VXD_CBIT(misc, 7),
+               "check_kill_permission(%d,%p,%p[#%u,%u])",
+               sig, info, t, vx_task_xid(t), t->pid);
+
        error = audit_signal_info(sig, t); /* Let audit system see the signal */
        if (error)
                return error;
 
        error = -EPERM;
-       if ((info == SEND_SIG_NOINFO || (!is_si_special(info) && SI_FROMUSER(info)))
-           && ((sig != SIGCONT) ||
+       if (((sig != SIGCONT) ||
                (process_session(current) != process_session(t)))
            && (current->euid ^ t->suid) && (current->euid ^ t->uid)
            && (current->uid ^ t->suid) && (current->uid ^ t->uid)
            && !capable(CAP_KILL))
                return error;
 
+       error = -ESRCH;
+       if (!vx_check(vx_task_xid(t), VS_WATCH_P | VS_IDENT)) {
+               vxdprintk(current->xid || VXD_CBIT(misc, 7),
+                       "signal %d[%p] xid mismatch %p[#%u,%u] xid=#%u",
+                       sig, info, t, vx_task_xid(t), t->pid, current->xid);
+               return error;
+       }
+skip:
        return security_task_kill(t, info, sig, 0);
 }
 
@@ -1043,7 +1060,7 @@ int kill_pid_info(int sig, struct siginf
 
        p = pid_task(pid, PIDTYPE_PID);
        error = -ESRCH;
-       if (p)
+       if (p && vx_check(vx_task_xid(p), VS_IDENT))
                error = group_send_sig_info(sig, info, p);
 
        if (unlikely(sig_needs_tasklist(sig)))
@@ -1057,7 +1074,7 @@ kill_proc_info(int sig, struct siginfo *
 {
        int error;
        rcu_read_lock();
-       error = kill_pid_info(sig, info, find_pid(pid));
+       error = kill_pid_info(sig, info, find_pid(vx_rmap_pid(pid)));
        rcu_read_unlock();
        return error;
 }
@@ -1118,7 +1135,8 @@ static int kill_something_info(int sig, 
 
                read_lock(&tasklist_lock);
                for_each_process(p) {
-                       if (p->pid > 1 && p->tgid != current->tgid) {
+                       if (vx_check(vx_task_xid(p), VS_ADMIN_P|VS_IDENT) &&
+                               p->pid > 1 && p->tgid != current->tgid) {
                                int err = group_send_sig_info(sig, info, p);
                                ++count;
                                if (err != -EPERM)
@@ -1814,6 +1832,11 @@ relock:
                if (current == child_reaper(current))
                        continue;
 
+               /* virtual init is protected against user signals */
+               if ((info->si_code == SI_USER) &&
+                       vx_current_initpid(current->pid))
+                       continue;
+
                if (sig_kernel_stop(signr)) {
                        /*
                         * The default action is to stop all threads in
diff -NurpP --minimal linux-2.6.22.10/kernel/softirq.c linux-2.6.22.10-vs2.3.0.29/kernel/softirq.c
--- linux-2.6.22.10/kernel/softirq.c    2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/softirq.c 2007-08-05 20:53:13 +0200
@@ -18,6 +18,7 @@
 #include <linux/rcupdate.h>
 #include <linux/smp.h>
 #include <linux/tick.h>
+#include <linux/vs_context.h>
 
 #include <asm/irq.h>
 /*
diff -NurpP --minimal linux-2.6.22.10/kernel/sys.c linux-2.6.22.10-vs2.3.0.29/kernel/sys.c
--- linux-2.6.22.10/kernel/sys.c        2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/sys.c     2007-10-30 01:21:54 +0100
@@ -36,6 +36,7 @@
 #include <linux/compat.h>
 #include <linux/syscalls.h>
 #include <linux/kprobes.h>
+#include <linux/vs_pid.h>
 
 #include <asm/uaccess.h>
 #include <asm/io.h>
@@ -639,7 +640,10 @@ static int set_one_prio(struct task_stru
                goto out;
        }
        if (niceval < task_nice(p) && !can_nice(p, niceval)) {
-               error = -EACCES;
+               if (vx_flags(VXF_IGNEG_NICE, 0))
+                       error = 0;
+               else
+                       error = -EACCES;
                goto out;
        }
        no_nice = security_task_setnice(p, niceval);
@@ -687,6 +691,8 @@ asmlinkage long sys_setpriority(int whic
                        else
                                pgrp = task_pgrp(current);
                        do_each_pid_task(pgrp, PIDTYPE_PGID, p) {
+                               if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
+                                       continue;
                                error = set_one_prio(p, niceval, error);
                        } while_each_pid_task(pgrp, PIDTYPE_PGID, p);
                        break;
@@ -695,7 +701,8 @@ asmlinkage long sys_setpriority(int whic
                        if (!who)
                                who = current->uid;
                        else
-                               if ((who != current->uid) && !(user = find_user(who)))
+                               if ((who != current->uid) &&
+                                       !(user = find_user(vx_current_xid(), who)))
                                        goto out_unlock;        /* No processes for this user */
 
                        do_each_thread(g, p)
@@ -747,6 +754,8 @@ asmlinkage long sys_getpriority(int whic
                        else
                                pgrp = task_pgrp(current);
                        do_each_pid_task(pgrp, PIDTYPE_PGID, p) {
+                               if (!vx_check(p->xid, VS_ADMIN_P | VS_IDENT))
+                                       continue;
                                niceval = 20 - task_nice(p);
                                if (niceval > retval)
                                        retval = niceval;
@@ -757,7 +766,8 @@ asmlinkage long sys_getpriority(int whic
                        if (!who)
                                who = current->uid;
                        else
-                               if ((who != current->uid) && !(user = find_user(who)))
+                               if ((who != current->uid) &&
+                                       !(user = find_user(vx_current_xid(), who)))
                                        goto out_unlock;        /* No processes for this user */
 
                        do_each_thread(g, p)
@@ -871,6 +881,9 @@ void kernel_power_off(void)
        machine_power_off();
 }
 EXPORT_SYMBOL_GPL(kernel_power_off);
+
+long vs_reboot(unsigned int, void __user *);
+
 /*
  * Reboot system call: for obvious reasons only root may call it,
  * and even root needs to set up some magic numbers in the registers
@@ -901,6 +914,9 @@ asmlinkage long sys_reboot(int magic1, i
        if ((cmd == LINUX_REBOOT_CMD_POWER_OFF) && !pm_power_off)
                cmd = LINUX_REBOOT_CMD_HALT;
 
+       if (!vx_check(0, VS_ADMIN|VS_WATCH))
+               return vs_reboot(cmd, arg);
+
        lock_kernel();
        switch (cmd) {
        case LINUX_REBOOT_CMD_RESTART:
@@ -1080,7 +1096,7 @@ static int set_user(uid_t new_ruid, int 
 {
        struct user_struct *new_user;
 
-       new_user = alloc_uid(new_ruid);
+       new_user = alloc_uid(vx_current_xid(), new_ruid);
        if (!new_user)
                return -EAGAIN;
 
@@ -1434,15 +1450,18 @@ asmlinkage long sys_setpgid(pid_t pid, p
 {
        struct task_struct *p;
        struct task_struct *group_leader = current->group_leader;
+       pid_t rpgid;
        int err = -EINVAL;
 
        if (!pid)
-               pid = group_leader->pid;
+               pid = vx_map_pid(group_leader->pid);
        if (!pgid)
                pgid = pid;
        if (pgid < 0)
                return -EINVAL;
 
+       rpgid = vx_rmap_pid(pgid);
+
        /* From this point forward we keep holding onto the tasklist lock
         * so that our parent does not change from under us. -DaveM
         */
@@ -1476,20 +1495,20 @@ asmlinkage long sys_setpgid(pid_t pid, p
 
        if (pgid != pid) {
                struct task_struct *g =
-                       find_task_by_pid_type(PIDTYPE_PGID, pgid);
+                       find_task_by_pid_type(PIDTYPE_PGID, rpgid);
 
                if (!g || task_session(g) != task_session(group_leader))
                        goto out;
        }
 
-       err = security_task_setpgid(p, pgid);
+       err = security_task_setpgid(p, rpgid);
        if (err)
                goto out;
 
-       if (process_group(p) != pgid) {
+       if (process_group(p) != rpgid) {
                detach_pid(p, PIDTYPE_PGID);
-               p->signal->pgrp = pgid;
-               attach_pid(p, PIDTYPE_PGID, find_pid(pgid));
+               p->signal->pgrp = rpgid;
+               attach_pid(p, PIDTYPE_PGID, find_pid(rpgid));
        }
 
        err = 0;
@@ -1502,7 +1521,7 @@ out:
 asmlinkage long sys_getpgid(pid_t pid)
 {
        if (!pid)
-               return process_group(current);
+               return vx_rmap_pid(process_group(current));
        else {
                int retval;
                struct task_struct *p;
@@ -1514,7 +1533,7 @@ asmlinkage long sys_getpgid(pid_t pid)
                if (p) {
                        retval = security_task_getpgid(p);
                        if (!retval)
-                               retval = process_group(p);
+                               retval = vx_rmap_pid(process_group(p));
                }
                read_unlock(&tasklist_lock);
                return retval;
@@ -1865,7 +1884,7 @@ asmlinkage long sys_sethostname(char __u
        int errno;
        char tmp[__NEW_UTS_LEN];
 
-       if (!capable(CAP_SYS_ADMIN))
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_SET_UTSNAME))
                return -EPERM;
        if (len < 0 || len > __NEW_UTS_LEN)
                return -EINVAL;
@@ -1910,7 +1929,7 @@ asmlinkage long sys_setdomainname(char _
        int errno;
        char tmp[__NEW_UTS_LEN];
 
-       if (!capable(CAP_SYS_ADMIN))
+       if (!vx_capable(CAP_SYS_ADMIN, VXC_SET_UTSNAME))
                return -EPERM;
        if (len < 0 || len > __NEW_UTS_LEN)
                return -EINVAL;
@@ -1977,7 +1996,7 @@ asmlinkage long sys_setrlimit(unsigned i
                return -EINVAL;
        old_rlim = current->signal->rlim + resource;
        if ((new_rlim.rlim_max > old_rlim->rlim_max) &&
-           !capable(CAP_SYS_RESOURCE))
+           !vx_capable(CAP_SYS_RESOURCE, VXC_SET_RLIMIT))
                return -EPERM;
        if (resource == RLIMIT_NOFILE && new_rlim.rlim_max > NR_OPEN)
                return -EPERM;
diff -NurpP --minimal linux-2.6.22.10/kernel/sysctl.c linux-2.6.22.10-vs2.3.0.29/kernel/sysctl.c
--- linux-2.6.22.10/kernel/sysctl.c     2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/sysctl.c  2007-08-05 20:53:13 +0200
@@ -89,6 +89,7 @@ static int ngroups_max = NGROUPS_MAX;
 #ifdef CONFIG_KMOD
 extern char modprobe_path[];
 #endif
+extern char vshelper_path[];
 #ifdef CONFIG_CHR_DEV_SG
 extern int sg_big_buff;
 #endif
@@ -343,6 +344,15 @@ static ctl_table kern_table[] = {
                .strategy       = &sysctl_string,
        },
 #endif
+       {
+               .ctl_name       = KERN_VSHELPER,
+               .procname       = "vshelper",
+               .data           = &vshelper_path,
+               .maxlen         = 256,
+               .mode           = 0644,
+               .proc_handler   = &proc_dostring,
+               .strategy       = &sysctl_string,
+       },
 #ifdef CONFIG_CHR_DEV_SG
        {
                .ctl_name       = KERN_SG_BIG_BUFF,
diff -NurpP --minimal linux-2.6.22.10/kernel/time.c linux-2.6.22.10-vs2.3.0.29/kernel/time.c
--- linux-2.6.22.10/kernel/time.c       2007-07-09 13:20:03 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/time.c    2007-08-05 20:53:13 +0200
@@ -60,7 +60,7 @@ asmlinkage long sys_time(time_t __user *
        time_t i;
        struct timeval tv;
 
-       do_gettimeofday(&tv);
+       vx_gettimeofday(&tv);
        i = tv.tv_sec;
 
        if (tloc) {
@@ -91,7 +91,7 @@ asmlinkage long sys_stime(time_t __user 
        if (err)
                return err;
 
-       do_settimeofday(&tv);
+       vx_settimeofday(&tv);
        return 0;
 }
 
@@ -101,7 +101,7 @@ asmlinkage long sys_gettimeofday(struct 
 {
        if (likely(tv != NULL)) {
                struct timeval ktv;
-               do_gettimeofday(&ktv);
+               vx_gettimeofday(&ktv);
                if (copy_to_user(tv, &ktv, sizeof(ktv)))
                        return -EFAULT;
        }
@@ -175,7 +175,7 @@ int do_sys_settimeofday(struct timespec 
                /* SMP safe, again the code in arch/foo/time.c should
                 * globally block out interrupts when it runs.
                 */
-               return do_settimeofday(tv);
+               return vx_settimeofday(tv);
        }
        return 0;
 }
@@ -388,7 +388,7 @@ void getnstimeofday(struct timespec *tv)
 {
        struct timeval x;
 
-       do_gettimeofday(&x);
+       vx_gettimeofday(&x);
        tv->tv_sec = x.tv_sec;
        tv->tv_nsec = x.tv_usec * NSEC_PER_USEC;
 }
diff -NurpP --minimal linux-2.6.22.10/kernel/timer.c linux-2.6.22.10-vs2.3.0.29/kernel/timer.c
--- linux-2.6.22.10/kernel/timer.c      2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/timer.c   2007-08-05 20:53:13 +0200
@@ -36,6 +36,10 @@
 #include <linux/delay.h>
 #include <linux/tick.h>
 #include <linux/kallsyms.h>
+#include <linux/vs_base.h>
+#include <linux/vs_cvirt.h>
+#include <linux/vs_pid.h>
+#include <linux/vserver/sched.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -921,12 +925,6 @@ asmlinkage unsigned long sys_alarm(unsig
 
 #endif
 
-#ifndef __alpha__
-
-/*
- * The Alpha uses getxpid, getxuid, and getxgid instead.  Maybe this
- * should be moved into arch/i386 instead?
- */
 
 /**
  * sys_getpid - return the thread group id of the current process
@@ -939,7 +937,7 @@ asmlinkage unsigned long sys_alarm(unsig
  */
 asmlinkage long sys_getpid(void)
 {
-       return current->tgid;
+       return vx_map_tgid(current->tgid);
 }
 
 /*
@@ -955,10 +953,23 @@ asmlinkage long sys_getppid(void)
        rcu_read_lock();
        pid = rcu_dereference(current->real_parent)->tgid;
        rcu_read_unlock();
+       return vx_map_pid(pid);
+}
 
-       return pid;
+#ifdef __alpha__
+
+/*
+ * The Alpha uses getxpid, getxuid, and getxgid instead.
+ */
+
+asmlinkage long do_getxpid(long *ppid)
+{
+       *ppid = sys_getppid();
+       return sys_getpid();
 }
 
+#else /* _alpha_ */
+
 asmlinkage long sys_getuid(void)
 {
        /* Only we change this so SMP safe */
@@ -1118,6 +1129,8 @@ int do_sysinfo(struct sysinfo *info)
                        tp.tv_nsec = tp.tv_nsec - NSEC_PER_SEC;
                        tp.tv_sec++;
                }
+               if (vx_flags(VXF_VIRT_UPTIME, 0))
+                       vx_vsi_uptime(&tp, NULL);
                info->uptime = tp.tv_sec + (tp.tv_nsec ? 1 : 0);
 
                info->loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
diff -NurpP --minimal linux-2.6.22.10/kernel/user.c linux-2.6.22.10-vs2.3.0.29/kernel/user.c
--- linux-2.6.22.10/kernel/user.c       2007-02-06 03:01:56 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/user.c    2007-08-05 20:53:13 +0200
@@ -23,8 +23,8 @@
 #define UIDHASH_BITS (CONFIG_BASE_SMALL ? 3 : 8)
 #define UIDHASH_SZ             (1 << UIDHASH_BITS)
 #define UIDHASH_MASK           (UIDHASH_SZ - 1)
-#define __uidhashfn(uid)       (((uid >> UIDHASH_BITS) + uid) & UIDHASH_MASK)
-#define uidhashentry(uid)      (uidhash_table + __uidhashfn((uid)))
+#define __uidhashfn(xid,uid)   ((((uid) >> UIDHASH_BITS) + ((uid)^(xid))) & UIDHASH_MASK)
+#define uidhashentry(xid,uid)  (uidhash_table + __uidhashfn((xid),(uid)))
 
 static struct kmem_cache *uid_cachep;
 static struct list_head uidhash_table[UIDHASH_SZ];
@@ -66,7 +66,7 @@ static inline void uid_hash_remove(struc
        list_del(&up->uidhash_list);
 }
 
-static inline struct user_struct *uid_hash_find(uid_t uid, struct list_head *hashent)
+static inline struct user_struct *uid_hash_find(xid_t xid, uid_t uid, struct list_head *hashent)
 {
        struct list_head *up;
 
@@ -75,7 +75,7 @@ static inline struct user_struct *uid_ha
 
                user = list_entry(up, struct user_struct, uidhash_list);
 
-               if(user->uid == uid) {
+               if(user->uid == uid && user->xid == xid) {
                        atomic_inc(&user->__count);
                        return user;
                }
@@ -90,13 +90,13 @@ static inline struct user_struct *uid_ha
  *
  * If the user_struct could not be found, return NULL.
  */
-struct user_struct *find_user(uid_t uid)
+struct user_struct *find_user(xid_t xid, uid_t uid)
 {
        struct user_struct *ret;
        unsigned long flags;
 
        spin_lock_irqsave(&uidhash_lock, flags);
-       ret = uid_hash_find(uid, uidhashentry(uid));
+       ret = uid_hash_find(xid, uid, uidhashentry(xid, uid));
        spin_unlock_irqrestore(&uidhash_lock, flags);
        return ret;
 }
@@ -120,13 +120,13 @@ void free_uid(struct user_struct *up)
        }
 }
 
-struct user_struct * alloc_uid(uid_t uid)
+struct user_struct * alloc_uid(xid_t xid, uid_t uid)
 {
-       struct list_head *hashent = uidhashentry(uid);
+       struct list_head *hashent = uidhashentry(xid, uid);
        struct user_struct *up;
 
        spin_lock_irq(&uidhash_lock);
-       up = uid_hash_find(uid, hashent);
+       up = uid_hash_find(xid, uid, hashent);
        spin_unlock_irq(&uidhash_lock);
 
        if (!up) {
@@ -136,6 +136,7 @@ struct user_struct * alloc_uid(uid_t uid
                if (!new)
                        return NULL;
                new->uid = uid;
+               new->xid = xid;
                atomic_set(&new->__count, 1);
                atomic_set(&new->processes, 0);
                atomic_set(&new->files, 0);
@@ -158,7 +159,7 @@ struct user_struct * alloc_uid(uid_t uid
                 * on adding the same user already..
                 */
                spin_lock_irq(&uidhash_lock);
-               up = uid_hash_find(uid, hashent);
+               up = uid_hash_find(xid, uid, hashent);
                if (up) {
                        key_put(new->uid_keyring);
                        key_put(new->session_keyring);
@@ -215,7 +216,7 @@ static int __init uid_cache_init(void)
 
        /* Insert the root user immediately (init already runs as root) */
        spin_lock_irq(&uidhash_lock);
-       uid_hash_insert(&root_user, uidhashentry(0));
+       uid_hash_insert(&root_user, uidhashentry(0,0));
        spin_unlock_irq(&uidhash_lock);
 
        return 0;
diff -NurpP --minimal linux-2.6.22.10/kernel/utsname.c linux-2.6.22.10-vs2.3.0.29/kernel/utsname.c
--- linux-2.6.22.10/kernel/utsname.c    2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/kernel/utsname.c 2007-08-05 20:53:13 +0200
@@ -13,6 +13,7 @@
 #include <linux/uts.h>
 #include <linux/utsname.h>
 #include <linux/version.h>
+#include <linux/vserver/global.h>
 
 /*
  * Clone a new ns copying an original utsname, setting refcount to 1
@@ -27,6 +28,7 @@ static struct uts_namespace *clone_uts_n
        if (ns) {
                memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
                kref_init(&ns->kref);
+               atomic_inc(&vs_global_uts_ns);
        }
        return ns;
 }
@@ -58,5 +60,6 @@ void free_uts_ns(struct kref *kref)
        struct uts_namespace *ns;
 
        ns = container_of(kref, struct uts_namespace, kref);
+       atomic_dec(&vs_global_uts_ns);
        kfree(ns);
 }
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/Kconfig linux-2.6.22.10-vs2.3.0.29/kernel/vserver/Kconfig
--- linux-2.6.22.10/kernel/vserver/Kconfig      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/Kconfig   2007-10-11 01:10:22 +0200
@@ -0,0 +1,249 @@
+#
+# Linux VServer configuration
+#
+
+menu "Linux VServer"
+
+config VSERVER_AUTO_LBACK
+       bool    "Automatically Assign Loopback IP"
+       default y
+       help
+         Automatically assign a guest specific loopback
+         IP and add it to the kernel network stack on
+         startup.
+
+config VSERVER_AUTO_SINGLE
+       bool    "Automatic Single IP Special Casing"
+       depends on EXPERIMENTAL
+       default y
+       help
+         This allows network contexts with a single IP to
+         automatically remap 0.0.0.0 bindings to that IP,
+         avoiding further network checks and improving
+         performance.
+
+         (note: such guests do not allow to change the ip
+          on the fly and do not show loopback addresses)
+
+config VSERVER_COWBL
+       bool    "Enable COW Immutable Link Breaking"
+       default y
+       help
+         This enables the COW (Copy-On-Write) link break code.
+         It allows you to treat unified files like normal files
+         when writing to them (which will implicitely break the
+         link and create a copy of the unified file)
+
+config VSERVER_VTIME
+       bool    "Enable Virtualized Guest Time"
+       depends on EXPERIMENTAL
+       default n
+       help
+         This enables per guest time offsets to allow for
+         adjusting the system clock individually per guest.
+         this adds some overhead to the time functions and
+         therefore should not be enabled without good reason.
+
+config VSERVER_DEVICE
+       bool    "Enable Guest Device Mapping"
+       depends on EXPERIMENTAL
+       default n
+       help
+         This enables generic device remapping.
+
+config VSERVER_PROC_SECURE
+       bool    "Enable Proc Security"
+       depends on PROC_FS
+       default y
+       help
+         This configures ProcFS security to initially hide
+         non-process entries for all contexts except the main and
+         spectator context (i.e. for all guests), which is a secure
+         default.
+
+         (note: on 1.2x the entries were visible by default)
+
+config VSERVER_HARDCPU
+       bool    "Enable Hard CPU Limits"
+       default y
+       help
+         Activate the Hard CPU Limits
+
+         This will compile in code that allows the Token Bucket
+         Scheduler to put processes on hold when a context's
+         tokens are depleted (provided that its per-context
+         sched_hard flag is set).
+
+         Processes belonging to that context will not be able
+         to consume CPU resources again until a per-context
+         configured minimum of tokens has been reached.
+
+config VSERVER_IDLETIME
+       bool    "Avoid idle CPUs by skipping Time"
+       depends on VSERVER_HARDCPU
+       default y
+       help
+         This option allows the scheduler to artificially
+         advance time (per cpu) when otherwise the idle
+         task would be scheduled, thus keeping the cpu
+         busy and sharing the available resources among
+         certain contexts.
+
+config VSERVER_IDLELIMIT
+       bool    "Limit the IDLE task"
+       depends on VSERVER_HARDCPU
+       default n
+       help
+         Limit the idle slices, so the the next context
+         will be scheduled as soon as possible.
+
+         This might improve interactivity and latency, but
+         will also marginally increase scheduling overhead.
+
+choice
+       prompt  "Persistent Inode Tagging"
+       default TAGGING_ID24
+       help
+         This adds persistent context information to filesystems
+         mounted with the tagxid option. Tagging is a requirement
+         for per-context disk limits and per-context quota.
+
+
+config TAGGING_NONE
+       bool    "Disabled"
+       help
+         do not store per-context information in inodes.
+
+config TAGGING_UID16
+       bool    "UID16/GID32"
+       help
+         reduces UID to 16 bit, but leaves GID at 32 bit.
+
+config TAGGING_GID16
+       bool    "UID32/GID16"
+       help
+         reduces GID to 16 bit, but leaves UID at 32 bit.
+
+config TAGGING_ID24
+       bool    "UID24/GID24"
+       help
+         uses the upper 8bit from UID and GID for XID tagging
+         which leaves 24bit for UID/GID each, which should be
+         more than sufficient for normal use.
+
+config TAGGING_INTERN
+       bool    "UID32/GID32"
+       help
+         this uses otherwise reserved inode fields in the on
+         disk representation, which limits the use to a few
+         filesystems (currently ext2 and ext3)
+
+endchoice
+
+config TAG_NFSD
+       bool    "Tag NFSD User Auth and Files"
+       default n
+       help
+         Enable this if you do want the in-kernel NFS
+         Server to use the tagging specified above.
+         (will require patched clients too)
+
+config VSERVER_PRIVACY
+       bool    "Honor Privacy Aspects of Guests"
+       default n
+       help
+         When enabled, most context checks will disallow
+         access to structures assigned to a specific context,
+         like ptys or loop devices.
+
+config VSERVER_CONTEXTS
+       int     "Maximum number of Contexts (1-65533)"  if EMBEDDED
+       range 1 65533
+       default "768"   if 64BIT
+       default "256"
+       help
+         This setting will optimize certain data structures
+         and memory allocations according to the expected
+         maximum.
+
+         note: this is not a strict upper limit.
+
+config VSERVER_WARN
+       bool    "VServer Warnings"
+       default y
+       help
+         This enables various runtime warnings, which will
+         notify about potential manipulation attempts or
+         resource shortage. It is generally considered to
+         be a good idea to have that enabled.
+
+config VSERVER_DEBUG
+       bool    "VServer Debugging Code"
+       default n
+       help
+         Set this to yes if you want to be able to activate
+         debugging output at runtime. It adds a very small
+         overhead to all vserver related functions and
+         increases the kernel size by about 20k.
+
+config VSERVER_HISTORY
+       bool    "VServer History Tracing"
+       depends on VSERVER_DEBUG
+       default n
+       help
+         Set this to yes if you want to record the history of
+         linux-vserver activities, so they can be replayed in
+         the event of a kernel panic or oops.
+
+config VSERVER_HISTORY_SIZE
+       int     "Per-CPU History Size (32-65536)"
+       depends on VSERVER_HISTORY
+       range 32 65536
+       default 64
+       help
+         This allows you to specify the number of entries in
+         the per-CPU history buffer.
+
+config VSERVER_MONITOR
+       bool    "VServer Scheduling Monitor"
+       depends on VSERVER_DEBUG
+       default n
+       help
+         Set this to yes if you want to record the scheduling
+         decisions, so that they can be relayed to userspace
+         for detailed analysis.
+
+config VSERVER_MONITOR_SIZE
+       int     "Per-CPU Monitor Queue Size (32-65536)"
+       depends on VSERVER_MONITOR
+       range 32 65536
+       default 1024
+       help
+         This allows you to specify the number of entries in
+         the per-CPU scheduling monitor buffer.
+
+config VSERVER_MONITOR_SYNC
+       int     "Per-CPU Monitor Sync Interval (0-65536)"
+       depends on VSERVER_MONITOR
+       range 0 65536
+       default 256
+       help
+         This allows you to specify the interval in ticks
+         when a time sync entry is inserted.
+
+endmenu
+
+
+config VSERVER
+       bool
+       default y
+       select UTS_NS
+       select SYSVIPC
+       select IPC_NS
+
+config VSERVER_SECURITY
+       bool
+       depends on SECURITY
+       default y
+       select SECURITY_CAPABILITIES
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/Makefile linux-2.6.22.10-vs2.3.0.29/kernel/vserver/Makefile
--- linux-2.6.22.10/kernel/vserver/Makefile     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/Makefile  2007-10-11 01:10:22 +0200
@@ -0,0 +1,18 @@
+#
+# Makefile for the Linux vserver routines.
+#
+
+
+obj-y          += vserver.o
+
+vserver-y      := switch.o context.o space.o sched.o network.o inode.o \
+                  limit.o cvirt.o cacct.o signal.o helper.o init.o \
+                  dlimit.o tag.o
+
+vserver-$(CONFIG_INET) += inet.o
+vserver-$(CONFIG_PROC_FS) += proc.o
+vserver-$(CONFIG_VSERVER_DEBUG) += sysctl.o debug.o
+vserver-$(CONFIG_VSERVER_HISTORY) += history.o
+vserver-$(CONFIG_VSERVER_MONITOR) += monitor.o
+vserver-$(CONFIG_VSERVER_DEVICE) += device.o
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/cacct.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cacct.c
--- linux-2.6.22.10/kernel/vserver/cacct.c      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cacct.c   2007-08-15 21:54:31 +0200
@@ -0,0 +1,42 @@
+/*
+ *  linux/kernel/vserver/cacct.c
+ *
+ *  Virtual Server: Context Accounting
+ *
+ *  Copyright (C) 2006-2007 Herbert Pötzl
+ *
+ *  V0.01  added accounting stats
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/vs_context.h>
+#include <linux/vserver/cacct_cmd.h>
+#include <linux/vserver/cacct_int.h>
+
+#include <asm/errno.h>
+#include <asm/uaccess.h>
+
+
+int vc_sock_stat(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_sock_stat_v0 vc_data;
+       int j, field;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       field = vc_data.field;
+       if ((field < 0) || (field >= VXA_SOCK_SIZE))
+               return -EINVAL;
+
+       for (j = 0; j < 3; j++) {
+               vc_data.count[j] = vx_sock_count(&vxi->cacct, field, j);
+               vc_data.total[j] = vx_sock_total(&vxi->cacct, field, j);
+       }
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/cacct_init.h linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cacct_init.h
--- linux-2.6.22.10/kernel/vserver/cacct_init.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cacct_init.h      2007-08-05 20:53:13 +0200
@@ -0,0 +1,25 @@
+
+
+static inline void vx_info_init_cacct(struct _vx_cacct *cacct)
+{
+       int i, j;
+
+
+       for (i = 0; i < VXA_SOCK_SIZE; i++) {
+               for (j = 0; j < 3; j++) {
+                       atomic_set(&cacct->sock[i][j].count, 0);
+                       atomic_set(&cacct->sock[i][j].total, 0);
+               }
+       }
+       for (i = 0; i < 8; i++)
+               atomic_set(&cacct->slab[i], 0);
+       for (i = 0; i < 5; i++)
+               for (j = 0; j < 4; j++)
+                       atomic_set(&cacct->page[i][j], 0);
+}
+
+static inline void vx_info_exit_cacct(struct _vx_cacct *cacct)
+{
+       return;
+}
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/cacct_proc.h linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cacct_proc.h
--- linux-2.6.22.10/kernel/vserver/cacct_proc.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cacct_proc.h      2007-08-05 20:53:13 +0200
@@ -0,0 +1,53 @@
+#ifndef _VX_CACCT_PROC_H
+#define _VX_CACCT_PROC_H
+
+#include <linux/vserver/cacct_int.h>
+
+
+#define VX_SOCKA_TOP   \
+       "Type\t    recv #/bytes\t\t   send #/bytes\t\t    fail #/bytes\n"
+
+static inline int vx_info_proc_cacct(struct _vx_cacct *cacct, char *buffer)
+{
+       int i, j, length = 0;
+       static char *type[VXA_SOCK_SIZE] = {
+               "UNSPEC", "UNIX", "INET", "INET6", "PACKET", "OTHER"
+       };
+
+       length += sprintf(buffer + length, VX_SOCKA_TOP);
+       for (i = 0; i < VXA_SOCK_SIZE; i++) {
+               length += sprintf(buffer + length, "%s:", type[i]);
+               for (j = 0; j < 3; j++) {
+                       length += sprintf(buffer + length,
+                               "\t%10lu/%-10lu",
+                               vx_sock_count(cacct, i, j),
+                               vx_sock_total(cacct, i, j));
+               }
+               buffer[length++] = '\n';
+       }
+
+       length += sprintf(buffer + length, "\n");
+       length += sprintf(buffer + length,
+               "slab:\t %8u %8u %8u %8u\n",
+               atomic_read(&cacct->slab[1]),
+               atomic_read(&cacct->slab[4]),
+               atomic_read(&cacct->slab[0]),
+               atomic_read(&cacct->slab[2]));
+
+       length += sprintf(buffer + length, "\n");
+       for (i = 0; i < 5; i++) {
+               length += sprintf(buffer + length,
+                       "page[%d]: %8u %8u %8u %8u\t %8u %8u %8u %8u\n", i,
+                       atomic_read(&cacct->page[i][0]),
+                       atomic_read(&cacct->page[i][1]),
+                       atomic_read(&cacct->page[i][2]),
+                       atomic_read(&cacct->page[i][3]),
+                       atomic_read(&cacct->page[i][4]),
+                       atomic_read(&cacct->page[i][5]),
+                       atomic_read(&cacct->page[i][6]),
+                       atomic_read(&cacct->page[i][7]));
+       }
+       return length;
+}
+
+#endif /* _VX_CACCT_PROC_H */
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/context.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/context.c
--- linux-2.6.22.10/kernel/vserver/context.c    1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/context.c 2007-10-05 14:54:36 +0200
@@ -0,0 +1,966 @@
+/*
+ *  linux/kernel/vserver/context.c
+ *
+ *  Virtual Server: Context Support
+ *
+ *  Copyright (C) 2003-2007  Herbert Pötzl
+ *
+ *  V0.01  context helper
+ *  V0.02  vx_ctx_kill syscall command
+ *  V0.03  replaced context_info calls
+ *  V0.04  redesign of struct (de)alloc
+ *  V0.05  rlimit basic implementation
+ *  V0.06  task_xid and info commands
+ *  V0.07  context flags and caps
+ *  V0.08  switch to RCU based hash
+ *  V0.09  revert to non RCU for now
+ *  V0.10  and back to working RCU hash
+ *  V0.11  and back to locking again
+ *  V0.12  referenced context store
+ *  V0.13  separate per cpu data
+ *  V0.14  changed vcmds to vxi arg
+ *  V0.15  added context stat
+ *  V0.16  have __create claim() the vxi
+ *  V0.17  removed older and legacy stuff
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/pid_namespace.h>
+
+#include <linux/vserver/context.h>
+#include <linux/vserver/network.h>
+#include <linux/vserver/debug.h>
+#include <linux/vserver/limit.h>
+#include <linux/vserver/limit_int.h>
+#include <linux/vserver/space.h>
+
+#include <linux/vs_context.h>
+#include <linux/vs_limit.h>
+#include <linux/vserver/context_cmd.h>
+
+#include "cvirt_init.h"
+#include "cacct_init.h"
+#include "limit_init.h"
+#include "sched_init.h"
+
+
+atomic_t vx_global_ctotal      = ATOMIC_INIT(0);
+atomic_t vx_global_cactive     = ATOMIC_INIT(0);
+
+
+/*     now inactive context structures */
+
+static struct hlist_head vx_info_inactive = HLIST_HEAD_INIT;
+
+static spinlock_t vx_info_inactive_lock = SPIN_LOCK_UNLOCKED;
+
+
+/*     __alloc_vx_info()
+
+       * allocate an initialized vx_info struct
+       * doesn't make it visible (hash)                        */
+
+static struct vx_info *__alloc_vx_info(xid_t xid)
+{
+       struct vx_info *new = NULL;
+       int cpu;
+
+       vxdprintk(VXD_CBIT(xid, 0), "alloc_vx_info(%d)*", xid);
+
+       /* would this benefit from a slab cache? */
+       new = kmalloc(sizeof(struct vx_info), GFP_KERNEL);
+       if (!new)
+               return 0;
+
+       memset(new, 0, sizeof(struct vx_info));
+#ifdef CONFIG_SMP
+       new->ptr_pc = alloc_percpu(struct _vx_info_pc);
+       if (!new->ptr_pc)
+               goto error;
+#endif
+       new->vx_id = xid;
+       INIT_HLIST_NODE(&new->vx_hlist);
+       atomic_set(&new->vx_usecnt, 0);
+       atomic_set(&new->vx_tasks, 0);
+       new->vx_parent = NULL;
+       new->vx_state = 0;
+       init_waitqueue_head(&new->vx_wait);
+
+       /* prepare reaper */
+       get_task_struct(init_pid_ns.child_reaper);
+       new->vx_reaper = init_pid_ns.child_reaper;
+       new->vx_badness_bias = 0;
+
+       /* rest of init goes here */
+       vx_info_init_limit(&new->limit);
+       vx_info_init_sched(&new->sched);
+       vx_info_init_cvirt(&new->cvirt);
+       vx_info_init_cacct(&new->cacct);
+
+       /* per cpu data structures */
+       for_each_possible_cpu(cpu) {
+               vx_info_init_sched_pc(
+                       &vx_per_cpu(new, sched_pc, cpu), cpu);
+               vx_info_init_cvirt_pc(
+                       &vx_per_cpu(new, cvirt_pc, cpu), cpu);
+       }
+
+       new->vx_flags = VXF_INIT_SET;
+       new->vx_bcaps = CAP_INIT_EFF_SET;
+       new->vx_ccaps = 0;
+       new->vx_cap_bset = cap_bset;
+
+       new->reboot_cmd = 0;
+       new->exit_code = 0;
+
+       new->vx_nsproxy = copy_nsproxy(current->nsproxy);
+
+       vxdprintk(VXD_CBIT(xid, 0),
+               "alloc_vx_info(%d) = %p", xid, new);
+       vxh_alloc_vx_info(new);
+       atomic_inc(&vx_global_ctotal);
+       return new;
+#ifdef CONFIG_SMP
+error:
+       kfree(new);
+       return 0;
+#endif
+}
+
+/*     __dealloc_vx_info()
+
+       * final disposal of vx_info                             */
+
+static void __dealloc_vx_info(struct vx_info *vxi)
+{
+       int cpu;
+
+       vxdprintk(VXD_CBIT(xid, 0),
+               "dealloc_vx_info(%p)", vxi);
+       vxh_dealloc_vx_info(vxi);
+
+       vxi->vx_id = -1;
+
+       vx_info_exit_limit(&vxi->limit);
+       vx_info_exit_sched(&vxi->sched);
+       vx_info_exit_cvirt(&vxi->cvirt);
+       vx_info_exit_cacct(&vxi->cacct);
+
+       for_each_possible_cpu(cpu) {
+               vx_info_exit_sched_pc(
+                       &vx_per_cpu(vxi, sched_pc, cpu), cpu);
+               vx_info_exit_cvirt_pc(
+                       &vx_per_cpu(vxi, cvirt_pc, cpu), cpu);
+       }
+
+       vxi->vx_state |= VXS_RELEASED;
+
+#ifdef CONFIG_SMP
+       free_percpu(vxi->ptr_pc);
+#endif
+       kfree(vxi);
+       atomic_dec(&vx_global_ctotal);
+}
+
+static void __shutdown_vx_info(struct vx_info *vxi)
+{
+       struct nsproxy *nsproxy;
+       struct fs_struct *fs;
+
+       might_sleep();
+
+       vxi->vx_state |= VXS_SHUTDOWN;
+       vs_state_change(vxi, VSC_SHUTDOWN);
+
+       nsproxy = xchg(&vxi->vx_nsproxy, NULL);
+       fs = xchg(&vxi->vx_fs, NULL);
+
+       if (nsproxy)
+               put_nsproxy(nsproxy);
+       if (fs)
+               put_fs_struct(fs);
+}
+
+/* exported stuff */
+
+void free_vx_info(struct vx_info *vxi)
+{
+       unsigned long flags;
+
+       /* check for reference counts first */
+       BUG_ON(atomic_read(&vxi->vx_usecnt));
+       BUG_ON(atomic_read(&vxi->vx_tasks));
+
+       /* context must not be hashed */
+       BUG_ON(vx_info_state(vxi, VXS_HASHED));
+
+       /* context shutdown is mandatory */
+       BUG_ON(!vx_info_state(vxi, VXS_SHUTDOWN));
+
+       BUG_ON(vxi->vx_nsproxy);
+       BUG_ON(vxi->vx_fs);
+
+       spin_lock_irqsave(&vx_info_inactive_lock, flags);
+       hlist_del(&vxi->vx_hlist);
+       spin_unlock_irqrestore(&vx_info_inactive_lock, flags);
+
+       __dealloc_vx_info(vxi);
+}
+
+
+/*     hash table for vx_info hash */
+
+#define VX_HASH_SIZE   13
+
+static struct hlist_head vx_info_hash[VX_HASH_SIZE] =
+       { [0 ... VX_HASH_SIZE-1] = HLIST_HEAD_INIT };
+
+static spinlock_t vx_info_hash_lock = SPIN_LOCK_UNLOCKED;
+
+
+static inline unsigned int __hashval(xid_t xid)
+{
+       return (xid % VX_HASH_SIZE);
+}
+
+
+
+/*     __hash_vx_info()
+
+       * add the vxi to the global hash table
+       * requires the hash_lock to be held                     */
+
+static inline void __hash_vx_info(struct vx_info *vxi)
+{
+       struct hlist_head *head;
+
+       vxd_assert_lock(&vx_info_hash_lock);
+       vxdprintk(VXD_CBIT(xid, 4),
+               "__hash_vx_info: %p[#%d]", vxi, vxi->vx_id);
+       vxh_hash_vx_info(vxi);
+
+       /* context must not be hashed */
+       BUG_ON(vx_info_state(vxi, VXS_HASHED));
+
+       vxi->vx_state |= VXS_HASHED;
+       head = &vx_info_hash[__hashval(vxi->vx_id)];
+       hlist_add_head(&vxi->vx_hlist, head);
+       atomic_inc(&vx_global_cactive);
+}
+
+/*     __unhash_vx_info()
+
+       * remove the vxi from the global hash table
+       * requires the hash_lock to be held                     */
+
+static inline void __unhash_vx_info(struct vx_info *vxi)
+{
+       unsigned long flags;
+
+       vxd_assert_lock(&vx_info_hash_lock);
+       vxdprintk(VXD_CBIT(xid, 4),
+               "__unhash_vx_info: %p[#%d.%d.%d]", vxi, vxi->vx_id,
+               atomic_read(&vxi->vx_usecnt), atomic_read(&vxi->vx_tasks));
+       vxh_unhash_vx_info(vxi);
+
+       /* context must be hashed */
+       BUG_ON(!vx_info_state(vxi, VXS_HASHED));
+       /* but without tasks */
+       BUG_ON(atomic_read(&vxi->vx_tasks));
+
+       vxi->vx_state &= ~VXS_HASHED;
+       hlist_del_init(&vxi->vx_hlist);
+       spin_lock_irqsave(&vx_info_inactive_lock, flags);
+       hlist_add_head(&vxi->vx_hlist, &vx_info_inactive);
+       spin_unlock_irqrestore(&vx_info_inactive_lock, flags);
+       atomic_dec(&vx_global_cactive);
+}
+
+
+/*     __lookup_vx_info()
+
+       * requires the hash_lock to be held
+       * doesn't increment the vx_refcnt                       */
+
+static inline struct vx_info *__lookup_vx_info(xid_t xid)
+{
+       struct hlist_head *head = &vx_info_hash[__hashval(xid)];
+       struct hlist_node *pos;
+       struct vx_info *vxi;
+
+       vxd_assert_lock(&vx_info_hash_lock);
+       hlist_for_each(pos, head) {
+               vxi = hlist_entry(pos, struct vx_info, vx_hlist);
+
+               if (vxi->vx_id == xid)
+                       goto found;
+       }
+       vxi = NULL;
+found:
+       vxdprintk(VXD_CBIT(xid, 0),
+               "__lookup_vx_info(#%u): %p[#%u]",
+               xid, vxi, vxi ? vxi->vx_id : 0);
+       vxh_lookup_vx_info(vxi, xid);
+       return vxi;
+}
+
+
+/*     __create_vx_info()
+
+       * create the requested context
+       * get(), claim() and hash it                            */
+
+static struct vx_info *__create_vx_info(int id)
+{
+       struct vx_info *new, *vxi = NULL;
+
+       vxdprintk(VXD_CBIT(xid, 1), "create_vx_info(%d)*", id);
+
+       if (!(new = __alloc_vx_info(id)))
+               return ERR_PTR(-ENOMEM);
+
+       /* required to make dynamic xids unique */
+       spin_lock(&vx_info_hash_lock);
+
+       /* static context requested */
+       if ((vxi = __lookup_vx_info(id))) {
+               vxdprintk(VXD_CBIT(xid, 0),
+                       "create_vx_info(%d) = %p (already there)", id, vxi);
+               if (vx_info_flags(vxi, VXF_STATE_SETUP, 0))
+                       vxi = ERR_PTR(-EBUSY);
+               else
+                       vxi = ERR_PTR(-EEXIST);
+               goto out_unlock;
+       }
+       /* new context */
+       vxdprintk(VXD_CBIT(xid, 0),
+               "create_vx_info(%d) = %p (new)", id, new);
+       claim_vx_info(new, NULL);
+       __hash_vx_info(get_vx_info(new));
+       vxi = new, new = NULL;
+
+out_unlock:
+       spin_unlock(&vx_info_hash_lock);
+       vxh_create_vx_info(IS_ERR(vxi) ? NULL : vxi, id);
+       if (new)
+               __dealloc_vx_info(new);
+       return vxi;
+}
+
+
+/*     exported stuff                                          */
+
+
+void unhash_vx_info(struct vx_info *vxi)
+{
+       __shutdown_vx_info(vxi);
+       spin_lock(&vx_info_hash_lock);
+       __unhash_vx_info(vxi);
+       spin_unlock(&vx_info_hash_lock);
+       __wakeup_vx_info(vxi);
+}
+
+
+/*     lookup_vx_info()
+
+       * search for a vx_info and get() it
+       * negative id means current                             */
+
+struct vx_info *lookup_vx_info(int id)
+{
+       struct vx_info *vxi = NULL;
+
+       if (id < 0) {
+               vxi = get_vx_info(current->vx_info);
+       } else if (id > 1) {
+               spin_lock(&vx_info_hash_lock);
+               vxi = get_vx_info(__lookup_vx_info(id));
+               spin_unlock(&vx_info_hash_lock);
+       }
+       return vxi;
+}
+
+/*     xid_is_hashed()
+
+       * verify that xid is still hashed                       */
+
+int xid_is_hashed(xid_t xid)
+{
+       int hashed;
+
+       spin_lock(&vx_info_hash_lock);
+       hashed = (__lookup_vx_info(xid) != NULL);
+       spin_unlock(&vx_info_hash_lock);
+       return hashed;
+}
+
+#ifdef CONFIG_PROC_FS
+
+/*     get_xid_list()
+
+       * get a subset of hashed xids for proc
+       * assumes size is at least one                          */
+
+int get_xid_list(int index, unsigned int *xids, int size)
+{
+       int hindex, nr_xids = 0;
+
+       /* only show current and children */
+       if (!vx_check(0, VS_ADMIN | VS_WATCH)) {
+               if (index > 0)
+                       return 0;
+               xids[nr_xids] = vx_current_xid();
+               return 1;
+       }
+
+       for (hindex = 0; hindex < VX_HASH_SIZE; hindex++) {
+               struct hlist_head *head = &vx_info_hash[hindex];
+               struct hlist_node *pos;
+
+               spin_lock(&vx_info_hash_lock);
+               hlist_for_each(pos, head) {
+                       struct vx_info *vxi;
+
+                       if (--index > 0)
+                               continue;
+
+                       vxi = hlist_entry(pos, struct vx_info, vx_hlist);
+                       xids[nr_xids] = vxi->vx_id;
+                       if (++nr_xids >= size) {
+                               spin_unlock(&vx_info_hash_lock);
+                               goto out;
+                       }
+               }
+               /* keep the lock time short */
+               spin_unlock(&vx_info_hash_lock);
+       }
+out:
+       return nr_xids;
+}
+#endif
+
+#ifdef CONFIG_VSERVER_DEBUG
+
+void   dump_vx_info_inactive(int level)
+{
+       struct hlist_node *entry, *next;
+
+       hlist_for_each_safe(entry, next, &vx_info_inactive) {
+               struct vx_info *vxi =
+                       list_entry(entry, struct vx_info, vx_hlist);
+
+               dump_vx_info(vxi, level);
+       }
+}
+
+#endif
+
+int vx_migrate_user(struct task_struct *p, struct vx_info *vxi)
+{
+       struct user_struct *new_user, *old_user;
+
+       if (!p || !vxi)
+               BUG();
+
+       if (vx_info_flags(vxi, VXF_INFO_PRIVATE, 0))
+               return -EACCES;
+
+       new_user = alloc_uid(vxi->vx_id, p->uid);
+       if (!new_user)
+               return -ENOMEM;
+
+       old_user = p->user;
+       if (new_user != old_user) {
+               atomic_inc(&new_user->processes);
+               atomic_dec(&old_user->processes);
+               p->user = new_user;
+       }
+       free_uid(old_user);
+       return 0;
+}
+
+void vx_mask_cap_bset(struct vx_info *vxi, struct task_struct *p)
+{
+       p->cap_effective &= vxi->vx_cap_bset;
+       p->cap_inheritable &= vxi->vx_cap_bset;
+       p->cap_permitted &= vxi->vx_cap_bset;
+}
+
+
+#include <linux/file.h>
+
+static int vx_openfd_task(struct task_struct *tsk)
+{
+       struct files_struct *files = tsk->files;
+       struct fdtable *fdt;
+       const unsigned long *bptr;
+       int count, total;
+
+       /* no rcu_read_lock() because of spin_lock() */
+       spin_lock(&files->file_lock);
+       fdt = files_fdtable(files);
+       bptr = fdt->open_fds->fds_bits;
+       count = fdt->max_fds / (sizeof(unsigned long) * 8);
+       for (total = 0; count > 0; count--) {
+               if (*bptr)
+                       total += hweight_long(*bptr);
+               bptr++;
+       }
+       spin_unlock(&files->file_lock);
+       return total;
+}
+
+
+/*     for *space compatibility */
+
+asmlinkage long sys_unshare(unsigned long);
+
+/*
+ *     migrate task to new context
+ *     gets vxi, puts old_vxi on change
+ *     optionally unshares namespaces (hack)
+ */
+
+int vx_migrate_task(struct task_struct *p, struct vx_info *vxi, int unshare)
+{
+       struct vx_info *old_vxi;
+       int ret = 0;
+
+       if (!p || !vxi)
+               BUG();
+
+       vxdprintk(VXD_CBIT(xid, 5),
+               "vx_migrate_task(%p,%p[#%d.%d])", p, vxi,
+               vxi->vx_id, atomic_read(&vxi->vx_usecnt));
+
+       if (vx_info_flags(vxi, VXF_INFO_PRIVATE, 0) &&
+               !vx_info_flags(vxi, VXF_STATE_SETUP, 0))
+               return -EACCES;
+
+       if (vx_info_state(vxi, VXS_SHUTDOWN))
+               return -EFAULT;
+
+       old_vxi = task_get_vx_info(p);
+       if (old_vxi == vxi)
+               goto out;
+
+       if (!(ret = vx_migrate_user(p, vxi))) {
+               int openfd;
+
+               task_lock(p);
+               openfd = vx_openfd_task(p);
+
+               if (old_vxi) {
+                       atomic_dec(&old_vxi->cvirt.nr_threads);
+                       atomic_dec(&old_vxi->cvirt.nr_running);
+                       __rlim_dec(&old_vxi->limit, RLIMIT_NPROC);
+                       /* FIXME: what about the struct files here? */
+                       __rlim_sub(&old_vxi->limit, VLIMIT_OPENFD, openfd);
+                       /* account for the executable */
+                       __rlim_dec(&old_vxi->limit, VLIMIT_DENTRY);
+               }
+               atomic_inc(&vxi->cvirt.nr_threads);
+               atomic_inc(&vxi->cvirt.nr_running);
+               __rlim_inc(&vxi->limit, RLIMIT_NPROC);
+               /* FIXME: what about the struct files here? */
+               __rlim_add(&vxi->limit, VLIMIT_OPENFD, openfd);
+               /* account for the executable */
+               __rlim_inc(&vxi->limit, VLIMIT_DENTRY);
+
+               if (old_vxi) {
+                       release_vx_info(old_vxi, p);
+                       clr_vx_info(&p->vx_info);
+               }
+               claim_vx_info(vxi, p);
+               set_vx_info(&p->vx_info, vxi);
+               p->xid = vxi->vx_id;
+
+               vxdprintk(VXD_CBIT(xid, 5),
+                       "moved task %p into vxi:%p[#%d]",
+                       p, vxi, vxi->vx_id);
+
+               vx_mask_cap_bset(vxi, p);
+               task_unlock(p);
+
+               /* hack for *spaces to provide compatibility */
+               if (unshare) {
+                       struct nsproxy *old_nsp, *new_nsp;
+
+                       ret = unshare_nsproxy_namespaces(
+                               CLONE_NEWUTS | CLONE_NEWIPC,
+                               &new_nsp, NULL);
+                       if (ret)
+                               goto out;
+
+                       old_nsp = xchg(&p->nsproxy, new_nsp);
+                       vx_set_space(vxi, CLONE_NEWUTS | CLONE_NEWIPC);
+                       put_nsproxy(old_nsp);
+               }
+       }
+out:
+       put_vx_info(old_vxi);
+       return ret;
+}
+
+int vx_set_reaper(struct vx_info *vxi, struct task_struct *p)
+{
+       struct task_struct *old_reaper;
+
+       if (!vxi)
+               return -EINVAL;
+
+       vxdprintk(VXD_CBIT(xid, 6),
+               "vx_set_reaper(%p[#%d],%p[#%d,%d])",
+               vxi, vxi->vx_id, p, p->xid, p->pid);
+
+       old_reaper = vxi->vx_reaper;
+       if (old_reaper == p)
+               return 0;
+
+       /* set new child reaper */
+       get_task_struct(p);
+       vxi->vx_reaper = p;
+       put_task_struct(old_reaper);
+       return 0;
+}
+
+int vx_set_init(struct vx_info *vxi, struct task_struct *p)
+{
+       if (!vxi)
+               return -EINVAL;
+
+       vxdprintk(VXD_CBIT(xid, 6),
+               "vx_set_init(%p[#%d],%p[#%d,%d,%d])",
+               vxi, vxi->vx_id, p, p->xid, p->pid, p->tgid);
+
+       vxi->vx_flags &= ~VXF_STATE_INIT;
+       vxi->vx_initpid = p->tgid;
+       return 0;
+}
+
+void vx_exit_init(struct vx_info *vxi, struct task_struct *p, int code)
+{
+       vxdprintk(VXD_CBIT(xid, 6),
+               "vx_exit_init(%p[#%d],%p[#%d,%d,%d])",
+               vxi, vxi->vx_id, p, p->xid, p->pid, p->tgid);
+
+       vxi->exit_code = code;
+       vxi->vx_initpid = 0;
+}
+
+
+void vx_set_persistent(struct vx_info *vxi)
+{
+       vxdprintk(VXD_CBIT(xid, 6),
+               "vx_set_persistent(%p[#%d])", vxi, vxi->vx_id);
+
+       get_vx_info(vxi);
+       claim_vx_info(vxi, NULL);
+}
+
+void vx_clear_persistent(struct vx_info *vxi)
+{
+       vxdprintk(VXD_CBIT(xid, 6),
+               "vx_clear_persistent(%p[#%d])", vxi, vxi->vx_id);
+
+       release_vx_info(vxi, NULL);
+       put_vx_info(vxi);
+}
+
+void vx_update_persistent(struct vx_info *vxi)
+{
+       if (vx_info_flags(vxi, VXF_PERSISTENT, 0))
+               vx_set_persistent(vxi);
+       else
+               vx_clear_persistent(vxi);
+}
+
+
+/*     task must be current or locked          */
+
+void   exit_vx_info(struct task_struct *p, int code)
+{
+       struct vx_info *vxi = p->vx_info;
+
+       if (vxi) {
+               atomic_dec(&vxi->cvirt.nr_threads);
+               vx_nproc_dec(p);
+
+               vxi->exit_code = code;
+               release_vx_info(vxi, p);
+       }
+}
+
+void   exit_vx_info_early(struct task_struct *p, int code)
+{
+       struct vx_info *vxi = p->vx_info;
+
+       if (vxi) {
+               if (vxi->vx_initpid == p->tgid)
+                       vx_exit_init(vxi, p, code);
+               if (vxi->vx_reaper == p)
+                       vx_set_reaper(vxi, init_pid_ns.child_reaper);
+       }
+}
+
+
+/* vserver syscall commands below here */
+
+/* taks xid and vx_info functions */
+
+#include <asm/uaccess.h>
+
+
+int vc_task_xid(uint32_t id)
+{
+       xid_t xid;
+
+       if (id) {
+               struct task_struct *tsk;
+
+               read_lock(&tasklist_lock);
+               tsk = find_task_by_real_pid(id);
+               xid = (tsk) ? tsk->xid : -ESRCH;
+               read_unlock(&tasklist_lock);
+       } else
+               xid = vx_current_xid();
+       return xid;
+}
+
+
+int vc_vx_info(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_vx_info_v0 vc_data;
+
+       vc_data.xid = vxi->vx_id;
+       vc_data.initpid = vxi->vx_initpid;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+
+int vc_ctx_stat(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_stat_v0 vc_data;
+
+       vc_data.usecnt = atomic_read(&vxi->vx_usecnt);
+       vc_data.tasks = atomic_read(&vxi->vx_tasks);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+
+/* context functions */
+
+int vc_ctx_create(uint32_t xid, void __user *data)
+{
+       struct vcmd_ctx_create vc_data = { .flagword = VXF_INIT_SET };
+       struct vx_info *new_vxi;
+       int ret;
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       if ((xid > MAX_S_CONTEXT) || (xid < 2))
+               return -EINVAL;
+
+       new_vxi = __create_vx_info(xid);
+       if (IS_ERR(new_vxi))
+               return PTR_ERR(new_vxi);
+
+       /* initial flags */
+       new_vxi->vx_flags = vc_data.flagword;
+
+       ret = -ENOEXEC;
+       if (vs_state_change(new_vxi, VSC_STARTUP))
+               goto out;
+
+       ret = vx_migrate_task(current, new_vxi, (!data));
+       if (ret)
+               goto out;
+
+       /* return context id on success */
+       ret = new_vxi->vx_id;
+
+       /* get a reference for persistent contexts */
+       if ((vc_data.flagword & VXF_PERSISTENT))
+               vx_set_persistent(new_vxi);
+out:
+       release_vx_info(new_vxi, NULL);
+       put_vx_info(new_vxi);
+       return ret;
+}
+
+
+int vc_ctx_migrate(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_migrate vc_data = { .flagword = 0 };
+       int ret;
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = vx_migrate_task(current, vxi, 0);
+       if (ret)
+               return ret;
+       if (vc_data.flagword & VXM_SET_INIT)
+               ret = vx_set_init(vxi, current);
+       if (ret)
+               return ret;
+       if (vc_data.flagword & VXM_SET_REAPER)
+               ret = vx_set_reaper(vxi, current);
+       return ret;
+}
+
+
+int vc_get_cflags(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_flags_v0 vc_data;
+
+       vc_data.flagword = vxi->vx_flags;
+
+       /* special STATE flag handling */
+       vc_data.mask = vs_mask_flags(~0ULL, vxi->vx_flags, VXF_ONE_TIME);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+int vc_set_cflags(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_flags_v0 vc_data;
+       uint64_t mask, trigger;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       /* special STATE flag handling */
+       mask = vs_mask_mask(vc_data.mask, vxi->vx_flags, VXF_ONE_TIME);
+       trigger = (mask & vxi->vx_flags) ^ (mask & vc_data.flagword);
+
+       if (vxi == current->vx_info) {
+               if (trigger & VXF_STATE_SETUP)
+                       vx_mask_cap_bset(vxi, current);
+               if (trigger & VXF_STATE_INIT) {
+                       int ret;
+
+                       ret = vx_set_init(vxi, current);
+                       if (ret)
+                               return ret;
+                       ret = vx_set_reaper(vxi, current);
+                       if (ret)
+                               return ret;
+               }
+       }
+
+       vxi->vx_flags = vs_mask_flags(vxi->vx_flags,
+               vc_data.flagword, mask);
+       if (trigger & VXF_PERSISTENT)
+               vx_update_persistent(vxi);
+
+       return 0;
+}
+
+static int do_get_caps(struct vx_info *vxi, uint64_t *bcaps, uint64_t *ccaps)
+{
+       if (bcaps)
+               *bcaps = vxi->vx_bcaps;
+       if (ccaps)
+               *ccaps = vxi->vx_ccaps;
+
+       return 0;
+}
+
+int vc_get_ccaps(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_caps_v1 vc_data;
+       int ret;
+
+       ret = do_get_caps(vxi, NULL, &vc_data.ccaps);
+       if (ret)
+               return ret;
+       vc_data.cmask = ~0ULL;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+static int do_set_caps(struct vx_info *vxi,
+       uint64_t bcaps, uint64_t bmask, uint64_t ccaps, uint64_t cmask)
+{
+       vxi->vx_bcaps = vs_mask_flags(vxi->vx_bcaps, bcaps, bmask);
+       vxi->vx_ccaps = vs_mask_flags(vxi->vx_ccaps, ccaps, cmask);
+
+       return 0;
+}
+
+int vc_set_ccaps(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_caps_v1 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_set_caps(vxi, 0, 0, vc_data.ccaps, vc_data.cmask);
+}
+
+int vc_get_bcaps(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_bcaps vc_data;
+       int ret;
+
+       ret = do_get_caps(vxi, &vc_data.bcaps, NULL);
+       if (ret)
+               return ret;
+       vc_data.bmask = ~0ULL;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+int vc_set_bcaps(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_bcaps vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_set_caps(vxi, vc_data.bcaps, vc_data.bmask, 0, 0);
+}
+
+
+int vc_get_badness(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_badness_v0 vc_data;
+
+       vc_data.bias = vxi->vx_badness_bias;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+int vc_set_badness(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_badness_v0 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       vxi->vx_badness_bias = vc_data.bias;
+       return 0;
+}
+
+#include <linux/module.h>
+
+EXPORT_SYMBOL_GPL(free_vx_info);
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/cvirt.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cvirt.c
--- linux-2.6.22.10/kernel/vserver/cvirt.c      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cvirt.c   2007-08-15 22:00:34 +0200
@@ -0,0 +1,300 @@
+/*
+ *  linux/kernel/vserver/cvirt.c
+ *
+ *  Virtual Server: Context Virtualization
+ *
+ *  Copyright (C) 2004-2007  Herbert Pötzl
+ *
+ *  V0.01  broken out from limit.c
+ *  V0.02  added utsname stuff
+ *  V0.03  changed vcmds to vxi arg
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/vs_cvirt.h>
+#include <linux/vserver/switch.h>
+#include <linux/vserver/cvirt_cmd.h>
+
+#include <asm/uaccess.h>
+
+
+void vx_vsi_uptime(struct timespec *uptime, struct timespec *idle)
+{
+       struct vx_info *vxi = current->vx_info;
+
+       set_normalized_timespec(uptime,
+               uptime->tv_sec - vxi->cvirt.bias_uptime.tv_sec,
+               uptime->tv_nsec - vxi->cvirt.bias_uptime.tv_nsec);
+       if (!idle)
+               return;
+       set_normalized_timespec(idle,
+               idle->tv_sec - vxi->cvirt.bias_idle.tv_sec,
+               idle->tv_nsec - vxi->cvirt.bias_idle.tv_nsec);
+       return;
+}
+
+uint64_t vx_idle_jiffies(void)
+{
+       return init_task.utime + init_task.stime;
+}
+
+
+
+static inline uint32_t __update_loadavg(uint32_t load,
+       int wsize, int delta, int n)
+{
+       unsigned long long calc, prev;
+
+       /* just set it to n */
+       if (unlikely(delta >= wsize))
+               return (n << FSHIFT);
+
+       calc = delta * n;
+       calc <<= FSHIFT;
+       prev = (wsize - delta);
+       prev *= load;
+       calc += prev;
+       do_div(calc, wsize);
+       return calc;
+}
+
+
+void vx_update_load(struct vx_info *vxi)
+{
+       uint32_t now, last, delta;
+       unsigned int nr_running, nr_uninterruptible;
+       unsigned int total;
+       unsigned long flags;
+
+       spin_lock_irqsave(&vxi->cvirt.load_lock, flags);
+
+       now = jiffies;
+       last = vxi->cvirt.load_last;
+       delta = now - last;
+
+       if (delta < 5*HZ)
+               goto out;
+
+       nr_running = atomic_read(&vxi->cvirt.nr_running);
+       nr_uninterruptible = atomic_read(&vxi->cvirt.nr_uninterruptible);
+       total = nr_running + nr_uninterruptible;
+
+       vxi->cvirt.load[0] = __update_loadavg(vxi->cvirt.load[0],
+               60*HZ, delta, total);
+       vxi->cvirt.load[1] = __update_loadavg(vxi->cvirt.load[1],
+               5*60*HZ, delta, total);
+       vxi->cvirt.load[2] = __update_loadavg(vxi->cvirt.load[2],
+               15*60*HZ, delta, total);
+
+       vxi->cvirt.load_last = now;
+out:
+       atomic_inc(&vxi->cvirt.load_updates);
+       spin_unlock_irqrestore(&vxi->cvirt.load_lock, flags);
+}
+
+
+/*
+ * Commands to do_syslog:
+ *
+ *      0 -- Close the log.  Currently a NOP.
+ *      1 -- Open the log. Currently a NOP.
+ *      2 -- Read from the log.
+ *      3 -- Read all messages remaining in the ring buffer.
+ *      4 -- Read and clear all messages remaining in the ring buffer
+ *      5 -- Clear ring buffer.
+ *      6 -- Disable printk's to console
+ *      7 -- Enable printk's to console
+ *      8 -- Set level of messages printed to console
+ *      9 -- Return number of unread characters in the log buffer
+ *     10 -- Return size of the log buffer
+ */
+int vx_do_syslog(int type, char __user *buf, int len)
+{
+       int error = 0;
+       int do_clear = 0;
+       struct vx_info *vxi = current->vx_info;
+       struct _vx_syslog *log;
+
+       if (!vxi)
+               return -EINVAL;
+       log = &vxi->cvirt.syslog;
+
+       switch (type) {
+       case 0:         /* Close log */
+       case 1:         /* Open log */
+               break;
+       case 2:         /* Read from log */
+               error = wait_event_interruptible(log->log_wait,
+                       (log->log_start - log->log_end));
+               if (error)
+                       break;
+               spin_lock_irq(&log->logbuf_lock);
+               spin_unlock_irq(&log->logbuf_lock);
+               break;
+       case 4:         /* Read/clear last kernel messages */
+               do_clear = 1;
+               /* fall through */
+       case 3:         /* Read last kernel messages */
+               return 0;
+
+       case 5:         /* Clear ring buffer */
+               return 0;
+
+       case 6:         /* Disable logging to console */
+       case 7:         /* Enable logging to console */
+       case 8:         /* Set level of messages printed to console */
+               break;
+
+       case 9:         /* Number of chars in the log buffer */
+               return 0;
+       case 10:        /* Size of the log buffer */
+               return 0;
+       default:
+               error = -EINVAL;
+               break;
+       }
+       return error;
+}
+
+
+/* virtual host info names */
+
+static char *vx_vhi_name(struct vx_info *vxi, int id)
+{
+       struct nsproxy *nsproxy;
+       struct uts_namespace *uts;
+
+
+       if (id == VHIN_CONTEXT)
+               return vxi->vx_name;
+
+       nsproxy = vxi->vx_nsproxy;
+       if (!nsproxy)
+               return NULL;
+
+       uts = nsproxy->uts_ns;
+       if (!uts)
+               return NULL;
+
+       switch (id) {
+       case VHIN_SYSNAME:
+               return uts->name.sysname;
+       case VHIN_NODENAME:
+               return uts->name.nodename;
+       case VHIN_RELEASE:
+               return uts->name.release;
+       case VHIN_VERSION:
+               return uts->name.version;
+       case VHIN_MACHINE:
+               return uts->name.machine;
+       case VHIN_DOMAINNAME:
+               return uts->name.domainname;
+       default:
+               return NULL;
+       }
+       return NULL;
+}
+
+int vc_set_vhi_name(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_vhi_name_v0 vc_data;
+       char *name;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       name = vx_vhi_name(vxi, vc_data.field);
+       if (!name)
+               return -EINVAL;
+
+       memcpy(name, vc_data.name, 65);
+       return 0;
+}
+
+int vc_get_vhi_name(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_vhi_name_v0 vc_data;
+       char *name;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       name = vx_vhi_name(vxi, vc_data.field);
+       if (!name)
+               return -EINVAL;
+
+       memcpy(vc_data.name, name, 65);
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+
+int vc_virt_stat(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_virt_stat_v0 vc_data;
+       struct _vx_cvirt *cvirt = &vxi->cvirt;
+       struct timespec uptime;
+
+       do_posix_clock_monotonic_gettime(&uptime);
+       set_normalized_timespec(&uptime,
+               uptime.tv_sec - cvirt->bias_uptime.tv_sec,
+               uptime.tv_nsec - cvirt->bias_uptime.tv_nsec);
+
+       vc_data.offset = timeval_to_ns(&cvirt->bias_tv);
+       vc_data.uptime = timespec_to_ns(&uptime);
+       vc_data.nr_threads = atomic_read(&cvirt->nr_threads);
+       vc_data.nr_running = atomic_read(&cvirt->nr_running);
+       vc_data.nr_uninterruptible = atomic_read(&cvirt->nr_uninterruptible);
+       vc_data.nr_onhold = atomic_read(&cvirt->nr_onhold);
+       vc_data.nr_forks = atomic_read(&cvirt->total_forks);
+       vc_data.load[0] = cvirt->load[0];
+       vc_data.load[1] = cvirt->load[1];
+       vc_data.load[2] = cvirt->load[2];
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+
+#ifdef CONFIG_VSERVER_VTIME
+
+/* virtualized time base */
+
+void vx_gettimeofday(struct timeval *tv)
+{
+       do_gettimeofday(tv);
+       if (!vx_flags(VXF_VIRT_TIME, 0))
+               return;
+
+       tv->tv_sec += current->vx_info->cvirt.bias_tv.tv_sec;
+       tv->tv_usec += current->vx_info->cvirt.bias_tv.tv_usec;
+
+       if (tv->tv_usec >= USEC_PER_SEC) {
+               tv->tv_sec++;
+               tv->tv_usec -= USEC_PER_SEC;
+       } else if (tv->tv_usec < 0) {
+               tv->tv_sec--;
+               tv->tv_usec += USEC_PER_SEC;
+       }
+}
+
+int vx_settimeofday(struct timespec *ts)
+{
+       struct timeval tv;
+
+       if (!vx_flags(VXF_VIRT_TIME, 0))
+               return do_settimeofday(ts);
+
+       do_gettimeofday(&tv);
+       current->vx_info->cvirt.bias_tv.tv_sec =
+               ts->tv_sec - tv.tv_sec;
+       current->vx_info->cvirt.bias_tv.tv_usec =
+               (ts->tv_nsec/NSEC_PER_USEC) - tv.tv_usec;
+       return 0;
+}
+
+#endif
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/cvirt_init.h linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cvirt_init.h
--- linux-2.6.22.10/kernel/vserver/cvirt_init.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cvirt_init.h      2007-10-25 17:05:55 +0200
@@ -0,0 +1,69 @@
+
+
+extern uint64_t vx_idle_jiffies(void);
+
+static inline void vx_info_init_cvirt(struct _vx_cvirt *cvirt)
+{
+       uint64_t idle_jiffies = vx_idle_jiffies();
+       uint64_t nsuptime;
+
+       do_posix_clock_monotonic_gettime(&cvirt->bias_uptime);
+       nsuptime = (unsigned long long)cvirt->bias_uptime.tv_sec
+               * NSEC_PER_SEC + cvirt->bias_uptime.tv_nsec;
+       cvirt->bias_clock = nsec_to_clock_t(nsuptime);
+       cvirt->bias_tv.tv_sec = 0;
+       cvirt->bias_tv.tv_usec = 0;
+
+       jiffies_to_timespec(idle_jiffies, &cvirt->bias_idle);
+       atomic_set(&cvirt->nr_threads, 0);
+       atomic_set(&cvirt->nr_running, 0);
+       atomic_set(&cvirt->nr_uninterruptible, 0);
+       atomic_set(&cvirt->nr_onhold, 0);
+
+       spin_lock_init(&cvirt->load_lock);
+       cvirt->load_last = jiffies;
+       atomic_set(&cvirt->load_updates, 0);
+       cvirt->load[0] = 0;
+       cvirt->load[1] = 0;
+       cvirt->load[2] = 0;
+       atomic_set(&cvirt->total_forks, 0);
+
+       spin_lock_init(&cvirt->syslog.logbuf_lock);
+       init_waitqueue_head(&cvirt->syslog.log_wait);
+       cvirt->syslog.log_start = 0;
+       cvirt->syslog.log_end = 0;
+       cvirt->syslog.con_start = 0;
+       cvirt->syslog.logged_chars = 0;
+}
+
+static inline
+void vx_info_init_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc, int cpu)
+{
+       // cvirt_pc->cpustat = { 0 };
+}
+
+static inline void vx_info_exit_cvirt(struct _vx_cvirt *cvirt)
+{
+       int value;
+
+       vxwprintk_xid((value = atomic_read(&cvirt->nr_threads)),
+               "!!! cvirt: %p[nr_threads] = %d on exit.",
+               cvirt, value);
+       vxwprintk_xid((value = atomic_read(&cvirt->nr_running)),
+               "!!! cvirt: %p[nr_running] = %d on exit.",
+               cvirt, value);
+       vxwprintk_xid((value = atomic_read(&cvirt->nr_uninterruptible)),
+               "!!! cvirt: %p[nr_uninterruptible] = %d on exit.",
+               cvirt, value);
+       vxwprintk_xid((value = atomic_read(&cvirt->nr_onhold)),
+               "!!! cvirt: %p[nr_onhold] = %d on exit.",
+               cvirt, value);
+       return;
+}
+
+static inline
+void vx_info_exit_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc, int cpu)
+{
+       return;
+}
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/cvirt_proc.h linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cvirt_proc.h
--- linux-2.6.22.10/kernel/vserver/cvirt_proc.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/cvirt_proc.h      2007-08-05 20:53:13 +0200
@@ -0,0 +1,133 @@
+#ifndef _VX_CVIRT_PROC_H
+#define _VX_CVIRT_PROC_H
+
+#include <linux/nsproxy.h>
+#include <linux/mnt_namespace.h>
+#include <linux/utsname.h>
+#include <linux/ipc.h>
+
+
+static inline
+int vx_info_proc_nsproxy(struct nsproxy *nsproxy, char *buffer)
+{
+       struct mnt_namespace *ns;
+       struct uts_namespace *uts;
+       struct ipc_namespace *ipc;
+       struct vfsmount *mnt;
+       char *path, *root;
+       int length = 0;
+
+       if (!nsproxy)
+               goto out;
+
+       length += sprintf(buffer + length,
+               "NSProxy:\t%p [%p,%p,%p]\n",
+               nsproxy, nsproxy->mnt_ns,
+               nsproxy->uts_ns, nsproxy->ipc_ns);
+
+       ns = nsproxy->mnt_ns;
+       if (!ns)
+               goto skip_ns;
+
+       path = kmalloc(PATH_MAX, GFP_KERNEL);
+       if (!path)
+               goto skip_ns;
+
+       mnt = ns->root;
+       root = d_path(mnt->mnt_root, mnt->mnt_parent, path, PATH_MAX - 2);
+       length += sprintf(buffer + length,
+               "Namespace:\t%p [#%u]\n"
+               "RootPath:\t%s\n",
+               ns, atomic_read(&ns->count),
+               root);
+       kfree(path);
+skip_ns:
+
+       uts = nsproxy->uts_ns;
+       if (!uts)
+               goto skip_uts;
+
+       length += sprintf(buffer + length,
+               "SysName:\t%.*s\n"
+               "NodeName:\t%.*s\n"
+               "Release:\t%.*s\n"
+               "Version:\t%.*s\n"
+               "Machine:\t%.*s\n"
+               "DomainName:\t%.*s\n",
+               __NEW_UTS_LEN, uts->name.sysname,
+               __NEW_UTS_LEN, uts->name.nodename,
+               __NEW_UTS_LEN, uts->name.release,
+               __NEW_UTS_LEN, uts->name.version,
+               __NEW_UTS_LEN, uts->name.machine,
+               __NEW_UTS_LEN, uts->name.domainname);
+skip_uts:
+
+       ipc = nsproxy->ipc_ns;
+       if (!ipc)
+               goto skip_ipc;
+
+       length += sprintf(buffer + length,
+               "SEMS:\t\t%d %d %d %d  %d\n"
+               "MSG:\t\t%d %d %d\n"
+               "SHM:\t\t%lu %lu  %d %d\n",
+               ipc->sem_ctls[0], ipc->sem_ctls[1],
+               ipc->sem_ctls[2], ipc->sem_ctls[3],
+               ipc->used_sems,
+               ipc->msg_ctlmax, ipc->msg_ctlmnb, ipc->msg_ctlmni,
+               (unsigned long)ipc->shm_ctlmax,
+               (unsigned long)ipc->shm_ctlall,
+               ipc->shm_ctlmni, ipc->shm_tot);
+skip_ipc:
+out:
+       return length;
+}
+
+
+#include <linux/sched.h>
+
+#define LOAD_INT(x) ((x) >> FSHIFT)
+#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1 - 1)) * 100)
+
+static inline
+int vx_info_proc_cvirt(struct _vx_cvirt *cvirt, char *buffer)
+{
+       int length = 0;
+       int a, b, c;
+
+       length += sprintf(buffer + length,
+               "BiasUptime:\t%lu.%02lu\n",
+               (unsigned long)cvirt->bias_uptime.tv_sec,
+               (cvirt->bias_uptime.tv_nsec / (NSEC_PER_SEC / 100)));
+
+       a = cvirt->load[0] + (FIXED_1 / 200);
+       b = cvirt->load[1] + (FIXED_1 / 200);
+       c = cvirt->load[2] + (FIXED_1 / 200);
+       length += sprintf(buffer + length,
+               "nr_threads:\t%d\n"
+               "nr_running:\t%d\n"
+               "nr_unintr:\t%d\n"
+               "nr_onhold:\t%d\n"
+               "load_updates:\t%d\n"
+               "loadavg:\t%d.%02d %d.%02d %d.%02d\n"
+               "total_forks:\t%d\n",
+               atomic_read(&cvirt->nr_threads),
+               atomic_read(&cvirt->nr_running),
+               atomic_read(&cvirt->nr_uninterruptible),
+               atomic_read(&cvirt->nr_onhold),
+               atomic_read(&cvirt->load_updates),
+               LOAD_INT(a), LOAD_FRAC(a),
+               LOAD_INT(b), LOAD_FRAC(b),
+               LOAD_INT(c), LOAD_FRAC(c),
+               atomic_read(&cvirt->total_forks));
+       return length;
+}
+
+static inline
+int vx_info_proc_cvirt_pc(struct _vx_cvirt_pc *cvirt_pc,
+       char *buffer, int cpu)
+{
+       int length = 0;
+       return length;
+}
+
+#endif /* _VX_CVIRT_PROC_H */
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/debug.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/debug.c
--- linux-2.6.22.10/kernel/vserver/debug.c      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/debug.c   2007-10-01 14:57:41 +0200
@@ -0,0 +1,32 @@
+/*
+ *  kernel/vserver/debug.c
+ *
+ *  Copyright (C) 2005-2007 Herbert Pötzl
+ *
+ *  V0.01  vx_info dump support
+ *
+ */
+
+#include <linux/module.h>
+
+#include <linux/vserver/context.h>
+
+
+void   dump_vx_info(struct vx_info *vxi, int level)
+{
+       printk("vx_info %p[#%d, %d.%d, %4x]\n", vxi, vxi->vx_id,
+               atomic_read(&vxi->vx_usecnt),
+               atomic_read(&vxi->vx_tasks),
+               vxi->vx_state);
+       if (level > 0) {
+               __dump_vx_limit(&vxi->limit);
+               __dump_vx_sched(&vxi->sched);
+               __dump_vx_cvirt(&vxi->cvirt);
+               __dump_vx_cacct(&vxi->cacct);
+       }
+       printk("---\n");
+}
+
+
+EXPORT_SYMBOL_GPL(dump_vx_info);
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/device.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/device.c
--- linux-2.6.22.10/kernel/vserver/device.c     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/device.c  2007-10-11 01:10:22 +0200
@@ -0,0 +1,443 @@
+/*
+ *  linux/kernel/vserver/device.c
+ *
+ *  Linux-VServer: Device Support
+ *
+ *  Copyright (C) 2006  Herbert Pötzl
+ *  Copyright (C) 2007  Daniel Hokka Zakrisson
+ *
+ *  V0.01  device mapping basics
+ *  V0.02  added defaults
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/rcupdate.h>
+#include <linux/fs.h>
+#include <linux/namei.h>
+#include <linux/hash.h>
+
+#include <asm/errno.h>
+#include <asm/uaccess.h>
+#include <linux/vserver/base.h>
+#include <linux/vserver/debug.h>
+#include <linux/vserver/context.h>
+#include <linux/vserver/device.h>
+#include <linux/vserver/device_cmd.h>
+
+
+#define DMAP_HASH_BITS 4
+
+
+struct vs_mapping {
+       union {
+               struct hlist_node hlist;
+               struct list_head list;
+       } u;
+#define dm_hlist       u.hlist
+#define dm_list                u.list
+       xid_t xid;
+       dev_t device;
+       struct vx_dmap_target target;
+};
+
+
+static struct hlist_head dmap_main_hash[1 << DMAP_HASH_BITS];
+
+static spinlock_t dmap_main_hash_lock = SPIN_LOCK_UNLOCKED;
+
+static struct vx_dmap_target dmap_defaults[2] = {
+       { .flags = DATTR_OPEN },
+       { .flags = DATTR_OPEN },
+};
+
+
+struct kmem_cache *dmap_cachep __read_mostly;
+
+int __init dmap_cache_init(void)
+{
+       dmap_cachep = kmem_cache_create("dmap_cache",
+               sizeof(struct vs_mapping), 0,
+               SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL, NULL);
+       return 0;
+}
+
+__initcall(dmap_cache_init);
+
+
+static inline unsigned int __hashval(dev_t dev, int bits)
+{
+       return hash_long((unsigned long)dev, bits);
+}
+
+
+/*     __hash_mapping()
+ *     add the mapping to the hash table
+ */
+static inline void __hash_mapping(struct vx_info *vxi, struct vs_mapping *vdm)
+{
+       spinlock_t *hash_lock = &dmap_main_hash_lock;
+       struct hlist_head *head, *hash = dmap_main_hash;
+       int device = vdm->device;
+
+       spin_lock(hash_lock);
+       vxdprintk(VXD_CBIT(misc, 8), "__hash_mapping: %p[#%d] %08x:%08x",
+               vxi, vxi ? vxi->vx_id : 0, device, vdm->target.target);
+
+       head = &hash[__hashval(device, DMAP_HASH_BITS)];
+       hlist_add_head(&vdm->dm_hlist, head);
+       spin_unlock(hash_lock);
+}
+
+
+static inline int __mode_to_default(umode_t mode)
+{
+       switch (mode) {
+       case S_IFBLK:
+               return 0;
+       case S_IFCHR:
+               return 1;
+       default:
+               BUG();
+       }
+}
+
+
+/*     __set_default()
+ *     set a default
+ */
+static inline void __set_default(struct vx_info *vxi, umode_t mode,
+       struct vx_dmap_target *vdmt)
+{
+       spinlock_t *hash_lock = &dmap_main_hash_lock;
+       spin_lock(hash_lock);
+
+       if (vxi)
+               vxi->dmap.targets[__mode_to_default(mode)] = *vdmt;
+       else
+               dmap_defaults[__mode_to_default(mode)] = *vdmt;
+
+
+       spin_unlock(hash_lock);
+
+       vxdprintk(VXD_CBIT(misc, 8), "__set_default: %p[#%u] %08x %04x",
+                 vxi, vxi ? vxi->vx_id : 0, vdmt->target, vdmt->flags);
+}
+
+
+/*     __remove_default()
+ *     remove a default
+ */
+static inline int __remove_default(struct vx_info *vxi, umode_t mode)
+{
+       spinlock_t *hash_lock = &dmap_main_hash_lock;
+       spin_lock(hash_lock);
+
+       if (vxi)
+               vxi->dmap.targets[__mode_to_default(mode)].flags = 0;
+       else    /* remove == reset */
+               dmap_defaults[__mode_to_default(mode)].flags = DATTR_OPEN | mode;
+
+       spin_unlock(hash_lock);
+       return 0;
+}
+
+
+/*     __find_mapping()
+ *     find a mapping in the hash table
+ *
+ *     caller must hold hash_lock
+ */
+static inline int __find_mapping(xid_t xid, dev_t device, umode_t mode,
+       struct vs_mapping **local, struct vs_mapping **global)
+{
+       struct hlist_head *hash = dmap_main_hash;
+       struct hlist_head *head = &hash[__hashval(device, DMAP_HASH_BITS)];
+       struct hlist_node *pos;
+       struct vs_mapping *vdm;
+
+       *local = NULL;
+       if (global)
+               *global = NULL;
+
+       hlist_for_each(pos, head) {
+               vdm = hlist_entry(pos, struct vs_mapping, dm_hlist);
+
+               if ((vdm->device == device) &&
+                       !((vdm->target.flags ^ mode) & S_IFMT)) {
+                       if (vdm->xid == xid) {
+                               *local = vdm;
+                               return 1;
+                       } else if (global && vdm->xid == 0)
+                               *global = vdm;
+               }
+       }
+
+       if (global && *global)
+               return 0;
+       else
+               return -ENOENT;
+}
+
+
+/*     __lookup_mapping()
+ *     find a mapping and store the result in target and flags
+ */
+static inline int __lookup_mapping(struct vx_info *vxi,
+       dev_t device, dev_t *target, int *flags, umode_t mode)
+{
+       spinlock_t *hash_lock = &dmap_main_hash_lock;
+       struct vs_mapping *vdm, *global;
+       struct vx_dmap_target *vdmt;
+       int ret = 0;
+       xid_t xid = vxi->vx_id;
+       int index;
+
+       spin_lock(hash_lock);
+       if (__find_mapping(xid, device, mode, &vdm, &global) > 0) {
+               ret = 1;
+               vdmt = &vdm->target;
+               goto found;
+       }
+
+       index = __mode_to_default(mode);
+       if (vxi && vxi->dmap.targets[index].flags) {
+               ret = 2;
+               vdmt = &vxi->dmap.targets[index];
+       } else if (global) {
+               ret = 3;
+               vdmt = &global->target;
+               goto found;
+       } else {
+               ret = 4;
+               vdmt = &dmap_defaults[index];
+       }
+
+found:
+       if (target && (vdmt->flags & DATTR_REMAP))
+               *target = vdmt->target;
+       else if (target)
+               *target = device;
+       if (flags)
+               *flags = vdmt->flags;
+
+       spin_unlock(hash_lock);
+
+       return ret;
+}
+
+
+/*     __remove_mapping()
+ *     remove a mapping from the hash table
+ */
+static inline int __remove_mapping(struct vx_info *vxi, dev_t device,
+       umode_t mode)
+{
+       spinlock_t *hash_lock = &dmap_main_hash_lock;
+       struct vs_mapping *vdm = NULL;
+       int ret = 0;
+
+       spin_lock(hash_lock);
+
+       ret = __find_mapping((vxi ? vxi->vx_id : 0), device, mode, &vdm,
+               NULL);
+       vxdprintk(VXD_CBIT(misc, 8), "__remove_mapping: %p[#%d] %08x %04x",
+               vxi, vxi ? vxi->vx_id : 0, device, mode);
+       if (ret < 0)
+               goto out;
+       hlist_del(&vdm->dm_hlist);
+
+out:
+       spin_unlock(hash_lock);
+       if (vdm)
+               kmem_cache_free(dmap_cachep, vdm);
+       return ret;
+}
+
+
+
+int vs_map_device(struct vx_info *vxi,
+       dev_t device, dev_t *target, umode_t mode)
+{
+       int ret, flags = DATTR_MASK;
+
+       if (!vxi) {
+               if (target)
+                       *target = device;
+               goto out;
+       }
+       ret = __lookup_mapping(vxi, device, target, &flags, mode);
+       vxdprintk(VXD_CBIT(misc, 8), "vs_map_device: %08x target: %08x flags: %04x mode: %04x mapped=%d",
+               device, target ? *target : 0, flags, mode, ret);
+out:
+       return (flags & DATTR_MASK);
+}
+
+
+
+static int do_set_mapping(struct vx_info *vxi,
+       dev_t device, dev_t target, int flags, umode_t mode)
+{
+       if (device) {
+               struct vs_mapping *new;
+
+               new = kmem_cache_alloc(dmap_cachep, GFP_KERNEL);
+               if (!new)
+                       return -ENOMEM;
+
+               INIT_HLIST_NODE(&new->dm_hlist);
+               new->device = device;
+               new->target.target = target;
+               new->target.flags = flags | mode;
+               new->xid = (vxi ? vxi->vx_id : 0);
+
+               vxdprintk(VXD_CBIT(misc, 8), "do_set_mapping: %08x target: %08x flags: %04x", device, target, flags);
+               __hash_mapping(vxi, new);
+       } else {
+               struct vx_dmap_target new = {
+                       .target = target,
+                       .flags = flags | mode,
+               };
+               __set_default(vxi, mode, &new);
+       }
+       return 0;
+}
+
+
+static int do_unset_mapping(struct vx_info *vxi,
+       dev_t device, dev_t target, int flags, umode_t mode)
+{
+       int ret = -EINVAL;
+
+       if (device) {
+               ret = __remove_mapping(vxi, device, mode);
+               if (ret < 0)
+                       goto out;
+       } else {
+               ret = __remove_default(vxi, mode);
+               if (ret < 0)
+                       goto out;
+       }
+
+out:
+       return ret;
+}
+
+
+static inline int __user_device(const char __user *name, dev_t *dev,
+       umode_t *mode)
+{
+       struct nameidata nd;
+       int ret;
+
+       if (!name) {
+               *dev = 0;
+               return 0;
+       }
+       ret = user_path_walk_link(name, &nd);
+       if (ret)
+               return ret;
+       if (nd.dentry->d_inode) {
+               *dev = nd.dentry->d_inode->i_rdev;
+               *mode = nd.dentry->d_inode->i_mode;
+       }
+       path_release(&nd);
+       return 0;
+}
+
+static inline int __mapping_mode(dev_t device, dev_t target,
+       umode_t device_mode, umode_t target_mode, umode_t *mode)
+{
+       if (device)
+               *mode = device_mode & S_IFMT;
+       else if (target)
+               *mode = target_mode & S_IFMT;
+       else
+               *mode = 0;
+
+       /* if both given, device and target mode have to match */
+       if (device && target &&
+               ((device_mode ^ target_mode) & S_IFMT))
+               return -EINVAL;
+       return 0;
+}
+
+
+static inline int do_mapping(struct vx_info *vxi, const char __user *device_path,
+       const char __user *target_path, int flags, int set)
+{
+       dev_t device = ~0, target = ~0;
+       umode_t device_mode = 0, target_mode = 0, mode;
+       int ret;
+
+       ret = __user_device(device_path, &device, &device_mode);
+       if (ret)
+               return ret;
+       ret = __user_device(target_path, &target, &target_mode);
+       if (ret)
+               return ret;
+
+       ret = __mapping_mode(device, target,
+               device_mode, target_mode, &mode);
+       if (ret)
+               return ret;
+
+       if (set)
+               return do_set_mapping(vxi, device, target,
+                       flags, mode);
+       else
+               return do_unset_mapping(vxi, device, target,
+                       flags, mode);
+}
+
+
+int vc_set_mapping(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_set_mapping_v0 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_mapping(vxi, vc_data.device, vc_data.target,
+               vc_data.flags, 1);
+}
+
+int vc_unset_mapping(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_set_mapping_v0 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_mapping(vxi, vc_data.device, vc_data.target,
+               vc_data.flags, 0);
+}
+
+
+#ifdef CONFIG_COMPAT
+
+int vc_set_mapping_x32(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_set_mapping_v0_x32 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_mapping(vxi, compat_ptr(vc_data.device_ptr),
+               compat_ptr(vc_data.target_ptr), vc_data.flags, 1);
+}
+
+int vc_unset_mapping_x32(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_set_mapping_v0_x32 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_mapping(vxi, compat_ptr(vc_data.device_ptr),
+               compat_ptr(vc_data.target_ptr), vc_data.flags, 0);
+}
+
+#endif /* CONFIG_COMPAT */
+
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/dlimit.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/dlimit.c
--- linux-2.6.22.10/kernel/vserver/dlimit.c     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/dlimit.c  2007-08-15 22:07:58 +0200
@@ -0,0 +1,520 @@
+/*
+ *  linux/kernel/vserver/dlimit.c
+ *
+ *  Virtual Server: Context Disk Limits
+ *
+ *  Copyright (C) 2004-2007  Herbert Pötzl
+ *
+ *  V0.01  initial version
+ *  V0.02  compat32 splitup
+ *
+ */
+
+#include <linux/statfs.h>
+#include <linux/vs_tag.h>
+#include <linux/vs_dlimit.h>
+#include <linux/vserver/dlimit_cmd.h>
+
+#include <asm/uaccess.h>
+
+/*     __alloc_dl_info()
+
+       * allocate an initialized dl_info struct
+       * doesn't make it visible (hash)                        */
+
+static struct dl_info *__alloc_dl_info(struct super_block *sb, tag_t tag)
+{
+       struct dl_info *new = NULL;
+
+       vxdprintk(VXD_CBIT(dlim, 5),
+               "alloc_dl_info(%p,%d)*", sb, tag);
+
+       /* would this benefit from a slab cache? */
+       new = kmalloc(sizeof(struct dl_info), GFP_KERNEL);
+       if (!new)
+               return 0;
+
+       memset(new, 0, sizeof(struct dl_info));
+       new->dl_tag = tag;
+       new->dl_sb = sb;
+       INIT_RCU_HEAD(&new->dl_rcu);
+       INIT_HLIST_NODE(&new->dl_hlist);
+       spin_lock_init(&new->dl_lock);
+       atomic_set(&new->dl_refcnt, 0);
+       atomic_set(&new->dl_usecnt, 0);
+
+       /* rest of init goes here */
+
+       vxdprintk(VXD_CBIT(dlim, 4),
+               "alloc_dl_info(%p,%d) = %p", sb, tag, new);
+       return new;
+}
+
+/*     __dealloc_dl_info()
+
+       * final disposal of dl_info                             */
+
+static void __dealloc_dl_info(struct dl_info *dli)
+{
+       vxdprintk(VXD_CBIT(dlim, 4),
+               "dealloc_dl_info(%p)", dli);
+
+       dli->dl_hlist.next = LIST_POISON1;
+       dli->dl_tag = -1;
+       dli->dl_sb = 0;
+
+       BUG_ON(atomic_read(&dli->dl_usecnt));
+       BUG_ON(atomic_read(&dli->dl_refcnt));
+
+       kfree(dli);
+}
+
+
+/*     hash table for dl_info hash */
+
+#define DL_HASH_SIZE   13
+
+struct hlist_head dl_info_hash[DL_HASH_SIZE];
+
+static spinlock_t dl_info_hash_lock = SPIN_LOCK_UNLOCKED;
+
+
+static inline unsigned int __hashval(struct super_block *sb, tag_t tag)
+{
+       return ((tag ^ (unsigned long)sb) % DL_HASH_SIZE);
+}
+
+
+
+/*     __hash_dl_info()
+
+       * add the dli to the global hash table
+       * requires the hash_lock to be held                     */
+
+static inline void __hash_dl_info(struct dl_info *dli)
+{
+       struct hlist_head *head;
+
+       vxdprintk(VXD_CBIT(dlim, 6),
+               "__hash_dl_info: %p[#%d]", dli, dli->dl_tag);
+       get_dl_info(dli);
+       head = &dl_info_hash[__hashval(dli->dl_sb, dli->dl_tag)];
+       hlist_add_head_rcu(&dli->dl_hlist, head);
+}
+
+/*     __unhash_dl_info()
+
+       * remove the dli from the global hash table
+       * requires the hash_lock to be held                     */
+
+static inline void __unhash_dl_info(struct dl_info *dli)
+{
+       vxdprintk(VXD_CBIT(dlim, 6),
+               "__unhash_dl_info: %p[#%d]", dli, dli->dl_tag);
+       hlist_del_rcu(&dli->dl_hlist);
+       put_dl_info(dli);
+}
+
+
+/*     __lookup_dl_info()
+
+       * requires the rcu_read_lock()
+       * doesn't increment the dl_refcnt                       */
+
+static inline struct dl_info *__lookup_dl_info(struct super_block *sb, tag_t tag)
+{
+       struct hlist_head *head = &dl_info_hash[__hashval(sb, tag)];
+       struct hlist_node *pos;
+       struct dl_info *dli;
+
+       hlist_for_each_entry_rcu(dli, pos, head, dl_hlist) {
+
+               if (dli->dl_tag == tag && dli->dl_sb == sb) {
+                       return dli;
+               }
+       }
+       return NULL;
+}
+
+
+struct dl_info *locate_dl_info(struct super_block *sb, tag_t tag)
+{
+       struct dl_info *dli;
+
+       rcu_read_lock();
+       dli = get_dl_info(__lookup_dl_info(sb, tag));
+       vxdprintk(VXD_CBIT(dlim, 7),
+               "locate_dl_info(%p,#%d) = %p", sb, tag, dli);
+       rcu_read_unlock();
+       return dli;
+}
+
+void rcu_free_dl_info(struct rcu_head *head)
+{
+       struct dl_info *dli = container_of(head, struct dl_info, dl_rcu);
+       int usecnt, refcnt;
+
+       BUG_ON(!dli || !head);
+
+       usecnt = atomic_read(&dli->dl_usecnt);
+       BUG_ON(usecnt < 0);
+
+       refcnt = atomic_read(&dli->dl_refcnt);
+       BUG_ON(refcnt < 0);
+
+       vxdprintk(VXD_CBIT(dlim, 3),
+               "rcu_free_dl_info(%p)", dli);
+       if (!usecnt)
+               __dealloc_dl_info(dli);
+       else
+               printk("!!! rcu didn't free\n");
+}
+
+
+
+
+static int do_addrem_dlimit(uint32_t id, const char __user *name,
+       uint32_t flags, int add)
+{
+       struct nameidata nd;
+       int ret;
+
+       ret = user_path_walk_link(name, &nd);
+       if (!ret) {
+               struct super_block *sb;
+               struct dl_info *dli;
+
+               ret = -EINVAL;
+               if (!nd.dentry->d_inode)
+                       goto out_release;
+               if (!(sb = nd.dentry->d_inode->i_sb))
+                       goto out_release;
+
+               if (add) {
+                       dli = __alloc_dl_info(sb, id);
+                       spin_lock(&dl_info_hash_lock);
+
+                       ret = -EEXIST;
+                       if (__lookup_dl_info(sb, id))
+                               goto out_unlock;
+                       __hash_dl_info(dli);
+                       dli = NULL;
+               } else {
+                       spin_lock(&dl_info_hash_lock);
+                       dli = __lookup_dl_info(sb, id);
+
+                       ret = -ESRCH;
+                       if (!dli)
+                               goto out_unlock;
+                       __unhash_dl_info(dli);
+               }
+               ret = 0;
+       out_unlock:
+               spin_unlock(&dl_info_hash_lock);
+               if (add && dli)
+                       __dealloc_dl_info(dli);
+       out_release:
+               path_release(&nd);
+       }
+       return ret;
+}
+
+int vc_add_dlimit(uint32_t id, void __user *data)
+{
+       struct vcmd_ctx_dlimit_base_v0 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 1);
+}
+
+int vc_rem_dlimit(uint32_t id, void __user *data)
+{
+       struct vcmd_ctx_dlimit_base_v0 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 0);
+}
+
+#ifdef CONFIG_COMPAT
+
+int vc_add_dlimit_x32(uint32_t id, void __user *data)
+{
+       struct vcmd_ctx_dlimit_base_v0_x32 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_addrem_dlimit(id,
+               compat_ptr(vc_data.name_ptr), vc_data.flags, 1);
+}
+
+int vc_rem_dlimit_x32(uint32_t id, void __user *data)
+{
+       struct vcmd_ctx_dlimit_base_v0_x32 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_addrem_dlimit(id,
+               compat_ptr(vc_data.name_ptr), vc_data.flags, 0);
+}
+
+#endif /* CONFIG_COMPAT */
+
+
+static inline
+int do_set_dlimit(uint32_t id, const char __user *name,
+       uint32_t space_used, uint32_t space_total,
+       uint32_t inodes_used, uint32_t inodes_total,
+       uint32_t reserved, uint32_t flags)
+{
+       struct nameidata nd;
+       int ret;
+
+       ret = user_path_walk_link(name, &nd);
+       if (!ret) {
+               struct super_block *sb;
+               struct dl_info *dli;
+
+               ret = -EINVAL;
+               if (!nd.dentry->d_inode)
+                       goto out_release;
+               if (!(sb = nd.dentry->d_inode->i_sb))
+                       goto out_release;
+               if ((reserved != CDLIM_KEEP &&
+                       reserved > 100) ||
+                       (inodes_used != CDLIM_KEEP &&
+                       inodes_used > inodes_total) ||
+                       (space_used != CDLIM_KEEP &&
+                       space_used > space_total))
+                       goto out_release;
+
+               ret = -ESRCH;
+               dli = locate_dl_info(sb, id);
+               if (!dli)
+                       goto out_release;
+
+               spin_lock(&dli->dl_lock);
+
+               if (inodes_used != CDLIM_KEEP)
+                       dli->dl_inodes_used = inodes_used;
+               if (inodes_total != CDLIM_KEEP)
+                       dli->dl_inodes_total = inodes_total;
+               if (space_used != CDLIM_KEEP) {
+                       dli->dl_space_used = space_used;
+                       dli->dl_space_used <<= 10;
+               }
+               if (space_total == CDLIM_INFINITY)
+                       dli->dl_space_total = DLIM_INFINITY;
+               else if (space_total != CDLIM_KEEP) {
+                       dli->dl_space_total = space_total;
+                       dli->dl_space_total <<= 10;
+               }
+               if (reserved != CDLIM_KEEP)
+                       dli->dl_nrlmult = (1 << 10) * (100 - reserved) / 100;
+
+               spin_unlock(&dli->dl_lock);
+
+               put_dl_info(dli);
+               ret = 0;
+
+       out_release:
+               path_release(&nd);
+       }
+       return ret;
+}
+
+int vc_set_dlimit(uint32_t id, void __user *data)
+{
+       struct vcmd_ctx_dlimit_v0 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_set_dlimit(id, vc_data.name,
+               vc_data.space_used, vc_data.space_total,
+               vc_data.inodes_used, vc_data.inodes_total,
+               vc_data.reserved, vc_data.flags);
+}
+
+#ifdef CONFIG_COMPAT
+
+int vc_set_dlimit_x32(uint32_t id, void __user *data)
+{
+       struct vcmd_ctx_dlimit_v0_x32 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_set_dlimit(id, compat_ptr(vc_data.name_ptr),
+               vc_data.space_used, vc_data.space_total,
+               vc_data.inodes_used, vc_data.inodes_total,
+               vc_data.reserved, vc_data.flags);
+}
+
+#endif /* CONFIG_COMPAT */
+
+
+static inline
+int do_get_dlimit(uint32_t id, const char __user *name,
+       uint32_t *space_used, uint32_t *space_total,
+       uint32_t *inodes_used, uint32_t *inodes_total,
+       uint32_t *reserved, uint32_t *flags)
+{
+       struct nameidata nd;
+       int ret;
+
+       ret = user_path_walk_link(name, &nd);
+       if (!ret) {
+               struct super_block *sb;
+               struct dl_info *dli;
+
+               ret = -EINVAL;
+               if (!nd.dentry->d_inode)
+                       goto out_release;
+               if (!(sb = nd.dentry->d_inode->i_sb))
+                       goto out_release;
+
+               ret = -ESRCH;
+               dli = locate_dl_info(sb, id);
+               if (!dli)
+                       goto out_release;
+
+               spin_lock(&dli->dl_lock);
+               *inodes_used = dli->dl_inodes_used;
+               *inodes_total = dli->dl_inodes_total;
+               *space_used = dli->dl_space_used >> 10;
+               if (dli->dl_space_total == DLIM_INFINITY)
+                       *space_total = CDLIM_INFINITY;
+               else
+                       *space_total = dli->dl_space_total >> 10;
+
+               *reserved = 100 - ((dli->dl_nrlmult * 100 + 512) >> 10);
+               spin_unlock(&dli->dl_lock);
+
+               put_dl_info(dli);
+               ret = -EFAULT;
+
+               ret = 0;
+       out_release:
+               path_release(&nd);
+       }
+       return ret;
+}
+
+
+int vc_get_dlimit(uint32_t id, void __user *data)
+{
+       struct vcmd_ctx_dlimit_v0 vc_data;
+       int ret;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = do_get_dlimit(id, vc_data.name,
+               &vc_data.space_used, &vc_data.space_total,
+               &vc_data.inodes_used, &vc_data.inodes_total,
+               &vc_data.reserved, &vc_data.flags);
+       if (ret)
+               return ret;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+#ifdef CONFIG_COMPAT
+
+int vc_get_dlimit_x32(uint32_t id, void __user *data)
+{
+       struct vcmd_ctx_dlimit_v0_x32 vc_data;
+       int ret;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = do_get_dlimit(id, compat_ptr(vc_data.name_ptr),
+               &vc_data.space_used, &vc_data.space_total,
+               &vc_data.inodes_used, &vc_data.inodes_total,
+               &vc_data.reserved, &vc_data.flags);
+       if (ret)
+               return ret;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+#endif /* CONFIG_COMPAT */
+
+
+void vx_vsi_statfs(struct super_block *sb, struct kstatfs *buf)
+{
+       struct dl_info *dli;
+       __u64 blimit, bfree, bavail;
+       __u32 ifree;
+
+       dli = locate_dl_info(sb, dx_current_tag());
+       if (!dli)
+               return;
+
+       spin_lock(&dli->dl_lock);
+       if (dli->dl_inodes_total == (unsigned long)DLIM_INFINITY)
+               goto no_ilim;
+
+       /* reduce max inodes available to limit */
+       if (buf->f_files > dli->dl_inodes_total)
+               buf->f_files = dli->dl_inodes_total;
+
+       ifree = dli->dl_inodes_total - dli->dl_inodes_used;
+       /* reduce free inodes to min */
+       if (ifree < buf->f_ffree)
+               buf->f_ffree = ifree;
+
+no_ilim:
+       if (dli->dl_space_total == DLIM_INFINITY)
+               goto no_blim;
+
+       blimit = dli->dl_space_total >> sb->s_blocksize_bits;
+
+       if (dli->dl_space_total < dli->dl_space_used)
+               bfree = 0;
+       else
+               bfree = (dli->dl_space_total - dli->dl_space_used)
+                       >> sb->s_blocksize_bits;
+
+       bavail = ((dli->dl_space_total >> 10) * dli->dl_nrlmult);
+       if (bavail < dli->dl_space_used)
+               bavail = 0;
+       else
+               bavail = (bavail - dli->dl_space_used)
+                       >> sb->s_blocksize_bits;
+
+       /* reduce max space available to limit */
+       if (buf->f_blocks > blimit)
+               buf->f_blocks = blimit;
+
+       /* reduce free space to min */
+       if (bfree < buf->f_bfree)
+               buf->f_bfree = bfree;
+
+       /* reduce avail space to min */
+       if (bavail < buf->f_bavail)
+               buf->f_bavail = bavail;
+
+no_blim:
+       spin_unlock(&dli->dl_lock);
+       put_dl_info(dli);
+
+       return;
+}
+
+#include <linux/module.h>
+
+EXPORT_SYMBOL_GPL(locate_dl_info);
+EXPORT_SYMBOL_GPL(rcu_free_dl_info);
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/helper.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/helper.c
--- linux-2.6.22.10/kernel/vserver/helper.c     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/helper.c  2007-08-15 22:12:01 +0200
@@ -0,0 +1,199 @@
+/*
+ *  linux/kernel/vserver/helper.c
+ *
+ *  Virtual Context Support
+ *
+ *  Copyright (C) 2004-2007  Herbert Pötzl
+ *
+ *  V0.01  basic helper
+ *
+ */
+
+#include <linux/kmod.h>
+#include <linux/reboot.h>
+#include <linux/vs_context.h>
+#include <linux/vs_network.h>
+#include <linux/vserver/signal.h>
+
+
+char vshelper_path[255] = "/sbin/vshelper";
+
+
+static int do_vshelper(char *name, char *argv[], char *envp[], int sync)
+{
+       int ret;
+
+       if ((ret = call_usermodehelper(name, argv, envp, sync))) {
+               printk( KERN_WARNING
+                       "%s: (%s %s) returned %s with %d\n",
+                       name, argv[1], argv[2],
+                       sync ? "sync" : "async", ret);
+       }
+       vxdprintk(VXD_CBIT(switch, 4),
+               "%s: (%s %s) returned %s with %d",
+               name, argv[1], argv[2], sync ? "sync" : "async", ret);
+       return ret;
+}
+
+/*
+ *      vshelper path is set via /proc/sys
+ *      invoked by vserver sys_reboot(), with
+ *      the following arguments
+ *
+ *      argv [0] = vshelper_path;
+ *      argv [1] = action: "restart", "halt", "poweroff", ...
+ *      argv [2] = context identifier
+ *
+ *      envp [*] = type-specific parameters
+ */
+
+long vs_reboot_helper(struct vx_info *vxi, int cmd, void __user *arg)
+{
+       char id_buf[8], cmd_buf[16];
+       char uid_buf[16], pid_buf[16];
+       int ret;
+
+       char *argv[] = {vshelper_path, NULL, id_buf, 0};
+       char *envp[] = {"HOME=/", "TERM=linux",
+                       "PATH=/sbin:/usr/sbin:/bin:/usr/bin",
+                       uid_buf, pid_buf, cmd_buf, 0};
+
+       if (vx_info_state(vxi, VXS_HELPER))
+               return -EAGAIN;
+       vxi->vx_state |= VXS_HELPER;
+
+       snprintf(id_buf, sizeof(id_buf)-1, "%d", vxi->vx_id);
+
+       snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
+       snprintf(uid_buf, sizeof(uid_buf)-1, "VS_UID=%d", current->uid);
+       snprintf(pid_buf, sizeof(pid_buf)-1, "VS_PID=%d", current->pid);
+
+       switch (cmd) {
+       case LINUX_REBOOT_CMD_RESTART:
+               argv[1] = "restart";
+               break;
+
+       case LINUX_REBOOT_CMD_HALT:
+               argv[1] = "halt";
+               break;
+
+       case LINUX_REBOOT_CMD_POWER_OFF:
+               argv[1] = "poweroff";
+               break;
+
+       case LINUX_REBOOT_CMD_SW_SUSPEND:
+               argv[1] = "swsusp";
+               break;
+
+       default:
+               vxi->vx_state &= ~VXS_HELPER;
+               return 0;
+       }
+
+       ret = do_vshelper(vshelper_path, argv, envp, 0);
+       vxi->vx_state &= ~VXS_HELPER;
+       __wakeup_vx_info(vxi);
+       return (ret) ? -EPERM : 0;
+}
+
+
+long vs_reboot(unsigned int cmd, void __user *arg)
+{
+       struct vx_info *vxi = current->vx_info;
+       long ret = 0;
+
+       vxdprintk(VXD_CBIT(misc, 5),
+               "vs_reboot(%p[#%d],%d)",
+               vxi, vxi ? vxi->vx_id : 0, cmd);
+
+       ret = vs_reboot_helper(vxi, cmd, arg);
+       if (ret)
+               return ret;
+
+       vxi->reboot_cmd = cmd;
+       if (vx_info_flags(vxi, VXF_REBOOT_KILL, 0)) {
+               switch (cmd) {
+               case LINUX_REBOOT_CMD_RESTART:
+               case LINUX_REBOOT_CMD_HALT:
+               case LINUX_REBOOT_CMD_POWER_OFF:
+                       vx_info_kill(vxi, 0, SIGKILL);
+                       vx_info_kill(vxi, 1, SIGKILL);
+               default:
+                       break;
+               }
+       }
+       return 0;
+}
+
+
+/*
+ *      argv [0] = vshelper_path;
+ *      argv [1] = action: "startup", "shutdown"
+ *      argv [2] = context identifier
+ *
+ *      envp [*] = type-specific parameters
+ */
+
+long vs_state_change(struct vx_info *vxi, unsigned int cmd)
+{
+       char id_buf[8], cmd_buf[16];
+       char *argv[] = {vshelper_path, NULL, id_buf, 0};
+       char *envp[] = {"HOME=/", "TERM=linux",
+                       "PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0};
+
+       if (!vx_info_flags(vxi, VXF_SC_HELPER, 0))
+               return 0;
+
+       snprintf(id_buf, sizeof(id_buf)-1, "%d", vxi->vx_id);
+       snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
+
+       switch (cmd) {
+       case VSC_STARTUP:
+               argv[1] = "startup";
+               break;
+       case VSC_SHUTDOWN:
+               argv[1] = "shutdown";
+               break;
+       default:
+               return 0;
+       }
+
+       return do_vshelper(vshelper_path, argv, envp, 1);
+}
+
+
+/*
+ *      argv [0] = vshelper_path;
+ *      argv [1] = action: "netup", "netdown"
+ *      argv [2] = context identifier
+ *
+ *      envp [*] = type-specific parameters
+ */
+
+long vs_net_change(struct nx_info *nxi, unsigned int cmd)
+{
+       char id_buf[8], cmd_buf[16];
+       char *argv[] = {vshelper_path, NULL, id_buf, 0};
+       char *envp[] = {"HOME=/", "TERM=linux",
+                       "PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0};
+
+       if (!nx_info_flags(nxi, NXF_SC_HELPER, 0))
+               return 0;
+
+       snprintf(id_buf, sizeof(id_buf)-1, "%d", nxi->nx_id);
+       snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
+
+       switch (cmd) {
+       case VSC_NETUP:
+               argv[1] = "netup";
+               break;
+       case VSC_NETDOWN:
+               argv[1] = "netdown";
+               break;
+       default:
+               return 0;
+       }
+
+       return do_vshelper(vshelper_path, argv, envp, 1);
+}
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/history.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/history.c
--- linux-2.6.22.10/kernel/vserver/history.c    1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/history.c 2007-08-15 22:13:54 +0200
@@ -0,0 +1,258 @@
+/*
+ *  kernel/vserver/history.c
+ *
+ *  Virtual Context History Backtrace
+ *
+ *  Copyright (C) 2004-2007  Herbert Pötzl
+ *
+ *  V0.01  basic structure
+ *  V0.02  hash/unhash and trace
+ *  V0.03  preemption fixes
+ *
+ */
+
+#include <linux/module.h>
+#include <asm/uaccess.h>
+
+#include <linux/vserver/context.h>
+#include <linux/vserver/debug.h>
+#include <linux/vserver/debug_cmd.h>
+#include <linux/vserver/history.h>
+
+
+#ifdef CONFIG_VSERVER_HISTORY
+#define VXH_SIZE       CONFIG_VSERVER_HISTORY_SIZE
+#else
+#define VXH_SIZE       64
+#endif
+
+struct _vx_history {
+       unsigned int counter;
+
+       struct _vx_hist_entry entry[VXH_SIZE + 1];
+};
+
+
+DEFINE_PER_CPU(struct _vx_history, vx_history_buffer);
+
+unsigned volatile int vxh_active = 1;
+
+static atomic_t sequence = ATOMIC_INIT(0);
+
+
+/*     vxh_advance()
+
+       * requires disabled preemption                          */
+
+struct _vx_hist_entry *vxh_advance(void *loc)
+{
+       unsigned int cpu = smp_processor_id();
+       struct _vx_history *hist = &per_cpu(vx_history_buffer, cpu);
+       struct _vx_hist_entry *entry;
+       unsigned int index;
+
+       index = vxh_active ? (hist->counter++ % VXH_SIZE) : VXH_SIZE;
+       entry = &hist->entry[index];
+
+       entry->seq = atomic_inc_return(&sequence);
+       entry->loc = loc;
+       return entry;
+}
+
+EXPORT_SYMBOL_GPL(vxh_advance);
+
+
+#define VXH_LOC_FMTS   "(#%04x,*%d):%p"
+
+#define VXH_LOC_ARGS(e)        (e)->seq, cpu, (e)->loc
+
+
+#define VXH_VXI_FMTS   "%p[#%d,%d.%d]"
+
+#define VXH_VXI_ARGS(e)        (e)->vxi.ptr,                           \
+                       (e)->vxi.ptr ? (e)->vxi.xid : 0,        \
+                       (e)->vxi.ptr ? (e)->vxi.usecnt : 0,     \
+                       (e)->vxi.ptr ? (e)->vxi.tasks : 0
+
+void   vxh_dump_entry(struct _vx_hist_entry *e, unsigned cpu)
+{
+       switch (e->type) {
+       case VXH_THROW_OOPS:
+               printk( VXH_LOC_FMTS " oops \n", VXH_LOC_ARGS(e));
+               break;
+
+       case VXH_GET_VX_INFO:
+       case VXH_PUT_VX_INFO:
+               printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n",
+                       VXH_LOC_ARGS(e),
+                       (e->type == VXH_GET_VX_INFO) ? "get" : "put",
+                       VXH_VXI_ARGS(e));
+               break;
+
+       case VXH_INIT_VX_INFO:
+       case VXH_SET_VX_INFO:
+       case VXH_CLR_VX_INFO:
+               printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n",
+                       VXH_LOC_ARGS(e),
+                       (e->type == VXH_INIT_VX_INFO) ? "init" :
+                       ((e->type == VXH_SET_VX_INFO) ? "set" : "clr"),
+                       VXH_VXI_ARGS(e), e->sc.data);
+               break;
+
+       case VXH_CLAIM_VX_INFO:
+       case VXH_RELEASE_VX_INFO:
+               printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n",
+                       VXH_LOC_ARGS(e),
+                       (e->type == VXH_CLAIM_VX_INFO) ? "claim" : "release",
+                       VXH_VXI_ARGS(e), e->sc.data);
+               break;
+
+       case VXH_ALLOC_VX_INFO:
+       case VXH_DEALLOC_VX_INFO:
+               printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n",
+                       VXH_LOC_ARGS(e),
+                       (e->type == VXH_ALLOC_VX_INFO) ? "alloc" : "dealloc",
+                       VXH_VXI_ARGS(e));
+               break;
+
+       case VXH_HASH_VX_INFO:
+       case VXH_UNHASH_VX_INFO:
+               printk( VXH_LOC_FMTS " __%s_vx_info " VXH_VXI_FMTS "\n",
+                       VXH_LOC_ARGS(e),
+                       (e->type == VXH_HASH_VX_INFO) ? "hash" : "unhash",
+                       VXH_VXI_ARGS(e));
+               break;
+
+       case VXH_LOC_VX_INFO:
+       case VXH_LOOKUP_VX_INFO:
+       case VXH_CREATE_VX_INFO:
+               printk( VXH_LOC_FMTS " __%s_vx_info [#%d] -> " VXH_VXI_FMTS "\n",
+                       VXH_LOC_ARGS(e),
+                       (e->type == VXH_CREATE_VX_INFO) ? "create" :
+                       ((e->type == VXH_LOC_VX_INFO) ? "loc" : "lookup"),
+                       e->ll.arg, VXH_VXI_ARGS(e));
+               break;
+       }
+}
+
+static void __vxh_dump_history(void)
+{
+       unsigned int i, cpu;
+
+       printk("History:\tSEQ: %8x\tNR_CPUS: %d\n",
+               atomic_read(&sequence), NR_CPUS);
+
+       for (i = 0; i < VXH_SIZE; i++) {
+               for_each_online_cpu(cpu) {
+                       struct _vx_history *hist =
+                               &per_cpu(vx_history_buffer, cpu);
+                       unsigned int index = (hist->counter - i) % VXH_SIZE;
+                       struct _vx_hist_entry *entry = &hist->entry[index];
+
+                       vxh_dump_entry(entry, cpu);
+               }
+       }
+}
+
+void   vxh_dump_history(void)
+{
+       vxh_active = 0;
+#ifdef CONFIG_SMP
+       local_irq_enable();
+       smp_send_stop();
+       local_irq_disable();
+#endif
+       __vxh_dump_history();
+}
+
+
+/* vserver syscall commands below here */
+
+
+int vc_dump_history(uint32_t id)
+{
+       vxh_active = 0;
+       __vxh_dump_history();
+       vxh_active = 1;
+
+       return 0;
+}
+
+
+int do_read_history(struct __user _vx_hist_entry *data,
+       int cpu, uint32_t *index, uint32_t *count)
+{
+       int pos, ret = 0;
+       struct _vx_history *hist = &per_cpu(vx_history_buffer, cpu);
+       int end = hist->counter;
+       int start = end - VXH_SIZE + 2;
+       int idx = *index;
+
+       /* special case: get current pos */
+       if (!*count) {
+               *index = end;
+               return 0;
+       }
+
+       /* have we lost some data? */
+       if (idx < start)
+               idx = start;
+
+       for (pos = 0; (pos < *count) && (idx < end); pos++, idx++) {
+               struct _vx_hist_entry *entry =
+                       &hist->entry[idx % VXH_SIZE];
+
+               /* send entry to userspace */
+               ret = copy_to_user(&data[pos], entry, sizeof(*entry));
+               if (ret)
+                       break;
+       }
+       /* save new index and count */
+       *index = idx;
+       *count = pos;
+       return ret ? ret : (*index < end);
+}
+
+int vc_read_history(uint32_t id, void __user *data)
+{
+       struct vcmd_read_history_v0 vc_data;
+       int ret;
+
+       if (id >= NR_CPUS)
+               return -EINVAL;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = do_read_history((struct __user _vx_hist_entry *)vc_data.data,
+               id, &vc_data.index, &vc_data.count);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return ret;
+}
+
+#ifdef CONFIG_COMPAT
+
+int vc_read_history_x32(uint32_t id, void __user *data)
+{
+       struct vcmd_read_history_v0_x32 vc_data;
+       int ret;
+
+       if (id >= NR_CPUS)
+               return -EINVAL;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = do_read_history((struct __user _vx_hist_entry *)
+               compat_ptr(vc_data.data_ptr),
+               id, &vc_data.index, &vc_data.count);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return ret;
+}
+
+#endif /* CONFIG_COMPAT */
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/inet.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/inet.c
--- linux-2.6.22.10/kernel/vserver/inet.c       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/inet.c    2007-10-10 23:55:30 +0200
@@ -0,0 +1,222 @@
+
+#include <linux/in.h>
+#include <linux/inetdevice.h>
+#include <linux/vs_inet6.h>
+#include <linux/vserver/debug.h>
+#include <net/route.h>
+#include <net/addrconf.h>
+
+
+int nx_v4_addr_conflict(struct nx_info *nxi1, struct nx_info *nxi2)
+{
+       int ret = 0;
+
+       if (!nxi1 || !nxi2 || nxi1 == nxi2)
+               ret = 1;
+       else {
+               struct nx_addr_v4 *ptr;
+
+               for (ptr = &nxi1->v4; ptr; ptr = ptr->next) {
+                       if (v4_nx_addr_in_nx_info(nxi2, ptr, -1)) {
+                               ret = 1;
+                               break;
+                       }
+               }
+       }
+
+       vxdprintk(VXD_CBIT(net, 2),
+               "nx_v4_addr_conflict(%p,%p): %d",
+               nxi1, nxi2, ret);
+
+       return ret;
+}
+
+
+#ifdef CONFIG_IPV6
+
+int nx_v6_addr_conflict(struct nx_info *nxi1, struct nx_info *nxi2)
+{
+       int ret = 0;
+
+       if (!nxi1 || !nxi2 || nxi1 == nxi2)
+               ret = 1;
+       else {
+               struct nx_addr_v6 *ptr;
+
+               for (ptr = &nxi1->v6; ptr; ptr = ptr->next) {
+                       if (v6_nx_addr_in_nx_info(nxi2, ptr, -1)) {
+                               ret = 1;
+                               break;
+                       }
+               }
+       }
+
+       vxdprintk(VXD_CBIT(net, 2),
+               "nx_v6_addr_conflict(%p,%p): %d",
+               nxi1, nxi2, ret);
+
+       return ret;
+}
+
+#endif
+
+int v4_dev_in_nx_info(struct net_device *dev, struct nx_info *nxi)
+{
+       struct in_device *in_dev;
+       struct in_ifaddr **ifap;
+       struct in_ifaddr *ifa;
+       int ret = 0;
+
+       if (!dev)
+               goto out;
+       in_dev = in_dev_get(dev);
+       if (!in_dev)
+               goto out;
+
+       for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL;
+               ifap = &ifa->ifa_next) {
+               if (v4_addr_in_nx_info(nxi, ifa->ifa_local, NXA_MASK_SHOW)) {
+                       ret = 1;
+                       break;
+               }
+       }
+       in_dev_put(in_dev);
+out:
+       return ret;
+}
+
+
+#ifdef CONFIG_IPV6
+
+int v6_dev_in_nx_info(struct net_device *dev, struct nx_info *nxi)
+{
+       struct inet6_dev *in_dev;
+       struct inet6_ifaddr **ifap;
+       struct inet6_ifaddr *ifa;
+       int ret = 0;
+
+       if (!dev)
+               goto out;
+       in_dev = in6_dev_get(dev);
+       if (!in_dev)
+               goto out;
+
+       for (ifap = &in_dev->addr_list; (ifa = *ifap) != NULL;
+               ifap = &ifa->if_next) {
+               if (v6_addr_in_nx_info(nxi, &ifa->addr, -1)) {
+                       ret = 1;
+                       break;
+               }
+       }
+       in6_dev_put(in_dev);
+out:
+       return ret;
+}
+
+#endif
+
+int dev_in_nx_info(struct net_device *dev, struct nx_info *nxi)
+{
+       int ret = 1;
+
+       if (!nxi)
+               goto out;
+       if (nxi->v4.type && v4_dev_in_nx_info(dev, nxi))
+               goto out;
+#ifdef CONFIG_IPV6
+       ret = 2;
+       if (nxi->v6.type && v6_dev_in_nx_info(dev, nxi))
+               goto out;
+#endif
+       ret = 0;
+out:
+       vxdprintk(VXD_CBIT(net, 3),
+               "dev_in_nx_info(%p,%p[#%d]) = %d",
+               dev, nxi, nxi ? nxi->nx_id : 0, ret);
+       return ret;
+}
+
+int ip_v4_find_src(struct nx_info *nxi, struct rtable **rp, struct flowi *fl)
+{
+       if (!nxi)
+               return 0;
+
+       /* FIXME: handle lback only case */
+       if (!NX_IPV4(nxi))
+               return -EPERM;
+
+       vxdprintk(VXD_CBIT(net, 4),
+               "ip_v4_find_src(%p[#%u]) " NIPQUAD_FMT " -> " NIPQUAD_FMT,
+               nxi, nxi ? nxi->nx_id : 0,
+               NIPQUAD(fl->fl4_src), NIPQUAD(fl->fl4_dst));
+
+       /* single IP is unconditional */
+       if (nx_info_flags(nxi, NXF_SINGLE_IP, 0) &&
+               (fl->fl4_src == INADDR_ANY))
+               fl->fl4_src = nxi->v4.ip[0].s_addr;
+
+       if (fl->fl4_src == INADDR_ANY) {
+               struct nx_addr_v4 *ptr;
+               __be32 found;
+               int err;
+
+               err = __ip_route_output_key(rp, fl);
+               if (!err) {
+                       found = (*rp)->rt_src;
+                       ip_rt_put(*rp);
+                       vxdprintk(VXD_CBIT(net, 4),
+                               "ip_v4_find_src(%p[#%u]) rok[%u]: " NIPQUAD_FMT,
+                               nxi, nxi ? nxi->nx_id : 0, fl->oif, NIPQUAD(found));
+                       if (v4_addr_in_nx_info(nxi, found, NXA_MASK_BIND))
+                               goto found;
+               }
+
+               for (ptr = &nxi->v4; ptr; ptr = ptr->next) {
+                       __be32 primary = ptr->ip[0].s_addr;
+                       __be32 mask = ptr->mask.s_addr;
+                       __be32 net = primary & mask;
+
+                       vxdprintk(VXD_CBIT(net, 4), "ip_v4_find_src(%p[#%u]) chk: "
+                               NIPQUAD_FMT "/" NIPQUAD_FMT "/" NIPQUAD_FMT,
+                               nxi, nxi ? nxi->nx_id : 0, NIPQUAD(primary),
+                               NIPQUAD(mask), NIPQUAD(net));
+                       if ((found & mask) != net)
+                               continue;
+
+                       fl->fl4_src = primary;
+                       err = __ip_route_output_key(rp, fl);
+                       vxdprintk(VXD_CBIT(net, 4),
+                               "ip_v4_find_src(%p[#%u]) rok[%u]: " NIPQUAD_FMT,
+                               nxi, nxi ? nxi->nx_id : 0, fl->oif, NIPQUAD(primary));
+                       if (!err) {
+                               found = (*rp)->rt_src;
+                               ip_rt_put(*rp);
+                               if (found == primary)
+                                       goto found;
+                       }
+               }
+               /* still no source ip? */
+               found = LOOPBACK(fl->fl4_dst)
+                       ? IPI_LOOPBACK : nxi->v4.ip[0].s_addr;
+       found:
+               /* assign src ip to flow */
+               fl->fl4_src = found;
+
+       } else {
+               if (!v4_addr_in_nx_info(nxi, fl->fl4_src, NXA_MASK_BIND))
+                       return -EPERM;
+       }
+
+       if (nx_info_flags(nxi, NXF_LBACK_REMAP, 0)) {
+               if (LOOPBACK(fl->fl4_dst))
+                       fl->fl4_dst = nxi->v4_lback.s_addr;
+               if (LOOPBACK(fl->fl4_src))
+                       fl->fl4_src = nxi->v4_lback.s_addr;
+       } else if (LOOPBACK(fl->fl4_dst))
+               return -EPERM;
+
+       return 0;
+}
+
+EXPORT_SYMBOL_GPL(ip_v4_find_src);
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/init.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/init.c
--- linux-2.6.22.10/kernel/vserver/init.c       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/init.c    2007-08-15 22:15:36 +0200
@@ -0,0 +1,45 @@
+/*
+ *  linux/kernel/init.c
+ *
+ *  Virtual Server Init
+ *
+ *  Copyright (C) 2004-2007  Herbert Pötzl
+ *
+ *  V0.01  basic structure
+ *
+ */
+
+#include <linux/init.h>
+
+int    vserver_register_sysctl(void);
+void   vserver_unregister_sysctl(void);
+
+
+static int __init init_vserver(void)
+{
+       int ret = 0;
+
+#ifdef CONFIG_VSERVER_DEBUG
+       vserver_register_sysctl();
+#endif
+       return ret;
+}
+
+
+static void __exit exit_vserver(void)
+{
+
+#ifdef CONFIG_VSERVER_DEBUG
+       vserver_unregister_sysctl();
+#endif
+       return;
+}
+
+/* FIXME: GFP_ZONETYPES gone
+long vx_slab[GFP_ZONETYPES]; */
+long vx_area;
+
+
+module_init(init_vserver);
+module_exit(exit_vserver);
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/inode.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/inode.c
--- linux-2.6.22.10/kernel/vserver/inode.c      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/inode.c   2007-09-11 17:57:41 +0200
@@ -0,0 +1,409 @@
+/*
+ *  linux/kernel/vserver/inode.c
+ *
+ *  Virtual Server: File System Support
+ *
+ *  Copyright (C) 2004-2007  Herbert Pötzl
+ *
+ *  V0.01  separated from vcontext V0.05
+ *  V0.02  moved to tag (instead of xid)
+ *
+ */
+
+#include <linux/tty.h>
+#include <linux/proc_fs.h>
+#include <linux/devpts_fs.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/mount.h>
+#include <linux/parser.h>
+#include <linux/vserver/inode.h>
+#include <linux/vserver/inode_cmd.h>
+#include <linux/vs_base.h>
+#include <linux/vs_tag.h>
+
+#include <asm/uaccess.h>
+
+
+static int __vc_get_iattr(struct inode *in, uint32_t *tag, uint32_t *flags, uint32_t *mask)
+{
+       struct proc_dir_entry *entry;
+
+       if (!in || !in->i_sb)
+               return -ESRCH;
+
+       *flags = IATTR_TAG
+               | (IS_BARRIER(in) ? IATTR_BARRIER : 0)
+               | (IS_IUNLINK(in) ? IATTR_IUNLINK : 0)
+               | (IS_IMMUTABLE(in) ? IATTR_IMMUTABLE : 0);
+       *mask = IATTR_IUNLINK | IATTR_IMMUTABLE;
+
+       if (S_ISDIR(in->i_mode))
+               *mask |= IATTR_BARRIER;
+
+       if (IS_TAGGED(in)) {
+               *tag = in->i_tag;
+               *mask |= IATTR_TAG;
+       }
+
+       switch (in->i_sb->s_magic) {
+       case PROC_SUPER_MAGIC:
+               entry = PROC_I(in)->pde;
+
+               /* check for specific inodes? */
+               if (entry)
+                       *mask |= IATTR_FLAGS;
+               if (entry)
+                       *flags |= (entry->vx_flags & IATTR_FLAGS);
+               else
+                       *flags |= (PROC_I(in)->vx_flags & IATTR_FLAGS);
+               break;
+
+       case DEVPTS_SUPER_MAGIC:
+               *tag = in->i_tag;
+               *mask |= IATTR_TAG;
+               break;
+
+       default:
+               break;
+       }
+       return 0;
+}
+
+int vc_get_iattr(void __user *data)
+{
+       struct nameidata nd;
+       struct vcmd_ctx_iattr_v1 vc_data = { .tag = -1 };
+       int ret;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = user_path_walk_link(vc_data.name, &nd);
+       if (!ret) {
+               ret = __vc_get_iattr(nd.dentry->d_inode,
+                       &vc_data.tag, &vc_data.flags, &vc_data.mask);
+               path_release(&nd);
+       }
+       if (ret)
+               return ret;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               ret = -EFAULT;
+       return ret;
+}
+
+#ifdef CONFIG_COMPAT
+
+int vc_get_iattr_x32(void __user *data)
+{
+       struct nameidata nd;
+       struct vcmd_ctx_iattr_v1_x32 vc_data = { .tag = -1 };
+       int ret;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = user_path_walk_link(compat_ptr(vc_data.name_ptr), &nd);
+       if (!ret) {
+               ret = __vc_get_iattr(nd.dentry->d_inode,
+                       &vc_data.tag, &vc_data.flags, &vc_data.mask);
+               path_release(&nd);
+       }
+       if (ret)
+               return ret;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               ret = -EFAULT;
+       return ret;
+}
+
+#endif /* CONFIG_COMPAT */
+
+
+int vc_fget_iattr(uint32_t fd, void __user *data)
+{
+       struct file *filp;
+       struct vcmd_ctx_fiattr_v0 vc_data = { .tag = -1 };
+       int ret;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       filp = fget(fd);
+       if (!filp || !filp->f_dentry || !filp->f_dentry->d_inode)
+               return -EBADF;
+
+       ret = __vc_get_iattr(filp->f_dentry->d_inode,
+               &vc_data.tag, &vc_data.flags, &vc_data.mask);
+
+       fput(filp);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               ret = -EFAULT;
+       return ret;
+}
+
+
+static int __vc_set_iattr(struct dentry *de, uint32_t *tag, uint32_t *flags, uint32_t *mask)
+{
+       struct inode *in = de->d_inode;
+       int error = 0, is_proc = 0, has_tag = 0;
+       struct iattr attr = { 0 };
+
+       if (!in || !in->i_sb)
+               return -ESRCH;
+
+       is_proc = (in->i_sb->s_magic == PROC_SUPER_MAGIC);
+       if ((*mask & IATTR_FLAGS) && !is_proc)
+               return -EINVAL;
+
+       has_tag = IS_TAGGED(in) ||
+               (in->i_sb->s_magic == DEVPTS_SUPER_MAGIC);
+       if ((*mask & IATTR_TAG) && !has_tag)
+               return -EINVAL;
+
+       mutex_lock(&in->i_mutex);
+       if (*mask & IATTR_TAG) {
+               attr.ia_tag = *tag;
+               attr.ia_valid |= ATTR_TAG;
+       }
+
+       if (*mask & IATTR_FLAGS) {
+               struct proc_dir_entry *entry = PROC_I(in)->pde;
+               unsigned int iflags = PROC_I(in)->vx_flags;
+
+               iflags = (iflags & ~(*mask & IATTR_FLAGS))
+                       | (*flags & IATTR_FLAGS);
+               PROC_I(in)->vx_flags = iflags;
+               if (entry)
+                       entry->vx_flags = iflags;
+       }
+
+       if (*mask & (IATTR_BARRIER | IATTR_IUNLINK | IATTR_IMMUTABLE)) {
+               if (*mask & IATTR_IMMUTABLE) {
+                       if (*flags & IATTR_IMMUTABLE)
+                               in->i_flags |= S_IMMUTABLE;
+                       else
+                               in->i_flags &= ~S_IMMUTABLE;
+               }
+               if (*mask & IATTR_IUNLINK) {
+                       if (*flags & IATTR_IUNLINK)
+                               in->i_flags |= S_IUNLINK;
+                       else
+                               in->i_flags &= ~S_IUNLINK;
+               }
+               if (S_ISDIR(in->i_mode) && (*mask & IATTR_BARRIER)) {
+                       if (*flags & IATTR_BARRIER)
+                               in->i_flags |= S_BARRIER;
+                       else
+                               in->i_flags &= ~S_BARRIER;
+               }
+               if (in->i_op && in->i_op->sync_flags) {
+                       error = in->i_op->sync_flags(in);
+                       if (error)
+                               goto out;
+               }
+       }
+
+       if (attr.ia_valid) {
+               if (in->i_op && in->i_op->setattr)
+                       error = in->i_op->setattr(de, &attr);
+               else {
+                       error = inode_change_ok(in, &attr);
+                       if (!error)
+                               error = inode_setattr(in, &attr);
+               }
+       }
+
+out:
+       mutex_unlock(&in->i_mutex);
+       return error;
+}
+
+int vc_set_iattr(void __user *data)
+{
+       struct nameidata nd;
+       struct vcmd_ctx_iattr_v1 vc_data;
+       int ret;
+
+       if (!capable(CAP_LINUX_IMMUTABLE))
+               return -EPERM;
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = user_path_walk_link(vc_data.name, &nd);
+       if (!ret) {
+               ret = __vc_set_iattr(nd.dentry,
+                       &vc_data.tag, &vc_data.flags, &vc_data.mask);
+               path_release(&nd);
+       }
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               ret = -EFAULT;
+       return ret;
+}
+
+#ifdef CONFIG_COMPAT
+
+int vc_set_iattr_x32(void __user *data)
+{
+       struct nameidata nd;
+       struct vcmd_ctx_iattr_v1_x32 vc_data;
+       int ret;
+
+       if (!capable(CAP_LINUX_IMMUTABLE))
+               return -EPERM;
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = user_path_walk_link(compat_ptr(vc_data.name_ptr), &nd);
+       if (!ret) {
+               ret = __vc_set_iattr(nd.dentry,
+                       &vc_data.tag, &vc_data.flags, &vc_data.mask);
+               path_release(&nd);
+       }
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               ret = -EFAULT;
+       return ret;
+}
+
+#endif /* CONFIG_COMPAT */
+
+int vc_fset_iattr(uint32_t fd, void __user *data)
+{
+       struct file *filp;
+       struct vcmd_ctx_fiattr_v0 vc_data;
+       int ret;
+
+       if (!capable(CAP_LINUX_IMMUTABLE))
+               return -EPERM;
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       filp = fget(fd);
+       if (!filp || !filp->f_dentry || !filp->f_dentry->d_inode)
+               return -EBADF;
+
+       ret = __vc_set_iattr(filp->f_dentry, &vc_data.tag,
+               &vc_data.flags, &vc_data.mask);
+
+       fput(filp);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return ret;
+}
+
+
+enum { Opt_notagcheck, Opt_tag, Opt_notag, Opt_tagid, Opt_err };
+
+static match_table_t tokens = {
+       {Opt_notagcheck, "notagcheck"},
+#ifdef CONFIG_PROPAGATE
+       {Opt_notag, "notag"},
+       {Opt_tag, "tag"},
+       {Opt_tagid, "tagid=%u"},
+#endif
+       {Opt_err, NULL}
+};
+
+
+static void __dx_parse_remove(char *string, char *opt)
+{
+       char *p = strstr(string, opt);
+       char *q = p;
+
+       if (p) {
+               while (*q != '\0' && *q != ',')
+                       q++;
+               while (*q)
+                       *p++ = *q++;
+               while (*p)
+                       *p++ = '\0';
+       }
+}
+
+static inline
+int __dx_parse_tag(char *string, tag_t *tag, int remove)
+{
+       substring_t args[MAX_OPT_ARGS];
+       int token, option = 0;
+
+       if (!string)
+               return 0;
+
+       token = match_token(string, tokens, args);
+
+       vxdprintk(VXD_CBIT(tag, 7),
+               "dx_parse_tag(»%s«): %d:#%d",
+               string, token, option);
+
+       switch (token) {
+       case Opt_tag:
+               if (tag)
+                       *tag = 0;
+               if (remove)
+                       __dx_parse_remove(string, "tag");
+               return MNT_TAGID;
+       case Opt_notag:
+               if (remove)
+                       __dx_parse_remove(string, "notag");
+               return MNT_NOTAG;
+       case Opt_notagcheck:
+               if (remove)
+                       __dx_parse_remove(string, "notagcheck");
+               return MNT_NOTAGCHECK;
+       case Opt_tagid:
+               if (tag && !match_int(args, &option))
+                       *tag = option;
+               if (remove)
+                       __dx_parse_remove(string, "tagid");
+               return MNT_TAGID;
+       }
+       return 0;
+}
+
+int dx_parse_tag(char *string, tag_t *tag, int remove)
+{
+       int retval, flags = 0;
+
+       while ((retval = __dx_parse_tag(string, tag, remove)))
+               flags |= retval;
+       return flags;
+}
+
+#ifdef CONFIG_PROPAGATE
+
+void __dx_propagate_tag(struct nameidata *nd, struct inode *inode)
+{
+       tag_t new_tag = 0;
+       struct vfsmount *mnt;
+       int propagate;
+
+       if (!nd)
+               return;
+       mnt = nd->mnt;
+       if (!mnt)
+               return;
+
+       propagate = (mnt->mnt_flags & MNT_TAGID);
+       if (propagate)
+               new_tag = mnt->mnt_tag;
+
+       vxdprintk(VXD_CBIT(tag, 7),
+               "dx_propagate_tag(%p[#%lu.%d]): %d,%d",
+               inode, inode->i_ino, inode->i_tag,
+               new_tag, (propagate) ? 1 : 0);
+
+       if (propagate)
+               inode->i_tag = new_tag;
+}
+
+#include <linux/module.h>
+
+EXPORT_SYMBOL_GPL(__dx_propagate_tag);
+
+#endif /* CONFIG_PROPAGATE */
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/limit.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/limit.c
--- linux-2.6.22.10/kernel/vserver/limit.c      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/limit.c   2007-08-19 00:08:19 +0200
@@ -0,0 +1,318 @@
+/*
+ *  linux/kernel/vserver/limit.c
+ *
+ *  Virtual Server: Context Limits
+ *
+ *  Copyright (C) 2004-2007  Herbert Pötzl
+ *
+ *  V0.01  broken out from vcontext V0.05
+ *  V0.02  changed vcmds to vxi arg
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/vs_limit.h>
+#include <linux/vserver/limit.h>
+#include <linux/vserver/limit_cmd.h>
+
+#include <asm/uaccess.h>
+
+
+const char *vlimit_name[NUM_LIMITS] = {
+       [RLIMIT_CPU]            = "CPU",
+       [RLIMIT_RSS]            = "RSS",
+       [RLIMIT_NPROC]          = "NPROC",
+       [RLIMIT_NOFILE]         = "NOFILE",
+       [RLIMIT_MEMLOCK]        = "VML",
+       [RLIMIT_AS]             = "VM",
+       [RLIMIT_LOCKS]          = "LOCKS",
+       [RLIMIT_SIGPENDING]     = "SIGP",
+       [RLIMIT_MSGQUEUE]       = "MSGQ",
+
+       [VLIMIT_NSOCK]          = "NSOCK",
+       [VLIMIT_OPENFD]         = "OPENFD",
+       [VLIMIT_ANON]           = "ANON",
+       [VLIMIT_SHMEM]          = "SHMEM",
+       [VLIMIT_DENTRY]         = "DENTRY",
+};
+
+EXPORT_SYMBOL_GPL(vlimit_name);
+
+#define MASK_ENTRY(x)  (1 << (x))
+
+const struct vcmd_ctx_rlimit_mask_v0 vlimit_mask = {
+               /* minimum */
+       0
+       ,       /* softlimit */
+       MASK_ENTRY( RLIMIT_RSS          ) |
+       MASK_ENTRY( VLIMIT_ANON         ) |
+       0
+       ,       /* maximum */
+       MASK_ENTRY( RLIMIT_RSS          ) |
+       MASK_ENTRY( RLIMIT_NPROC        ) |
+       MASK_ENTRY( RLIMIT_NOFILE       ) |
+       MASK_ENTRY( RLIMIT_MEMLOCK      ) |
+       MASK_ENTRY( RLIMIT_AS           ) |
+       MASK_ENTRY( RLIMIT_LOCKS        ) |
+       MASK_ENTRY( RLIMIT_MSGQUEUE     ) |
+
+       MASK_ENTRY( VLIMIT_NSOCK        ) |
+       MASK_ENTRY( VLIMIT_OPENFD       ) |
+       MASK_ENTRY( VLIMIT_ANON         ) |
+       MASK_ENTRY( VLIMIT_SHMEM        ) |
+       MASK_ENTRY( VLIMIT_DENTRY       ) |
+       0
+};
+               /* accounting only */
+uint32_t account_mask =
+       MASK_ENTRY( VLIMIT_SEMARY       ) |
+       MASK_ENTRY( VLIMIT_NSEMS        ) |
+       MASK_ENTRY( VLIMIT_MAPPED       ) |
+       0;
+
+
+static int is_valid_vlimit(int id)
+{
+       uint32_t mask = vlimit_mask.minimum |
+               vlimit_mask.softlimit | vlimit_mask.maximum;
+       return mask & (1 << id);
+}
+
+static int is_accounted_vlimit(int id)
+{
+       if (is_valid_vlimit(id))
+               return 1;
+       return account_mask & (1 << id);
+}
+
+
+static inline uint64_t vc_get_soft(struct vx_info *vxi, int id)
+{
+       rlim_t limit = __rlim_soft(&vxi->limit, id);
+       return VX_VLIM(limit);
+}
+
+static inline uint64_t vc_get_hard(struct vx_info *vxi, int id)
+{
+       rlim_t limit = __rlim_hard(&vxi->limit, id);
+       return VX_VLIM(limit);
+}
+
+static int do_get_rlimit(struct vx_info *vxi, uint32_t id,
+       uint64_t *minimum, uint64_t *softlimit, uint64_t *maximum)
+{
+       if (!is_valid_vlimit(id))
+               return -EINVAL;
+
+       if (minimum)
+               *minimum = CRLIM_UNSET;
+       if (softlimit)
+               *softlimit = vc_get_soft(vxi, id);
+       if (maximum)
+               *maximum = vc_get_hard(vxi, id);
+       return 0;
+}
+
+int vc_get_rlimit(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_rlimit_v0 vc_data;
+       int ret;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = do_get_rlimit(vxi, vc_data.id,
+               &vc_data.minimum, &vc_data.softlimit, &vc_data.maximum);
+       if (ret)
+               return ret;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+static int do_set_rlimit(struct vx_info *vxi, uint32_t id,
+       uint64_t minimum, uint64_t softlimit, uint64_t maximum)
+{
+       if (!is_valid_vlimit(id))
+               return -EINVAL;
+
+       if (maximum != CRLIM_KEEP)
+               __rlim_hard(&vxi->limit, id) = VX_RLIM(maximum);
+       if (softlimit != CRLIM_KEEP)
+               __rlim_soft(&vxi->limit, id) = VX_RLIM(softlimit);
+
+       /* clamp soft limit */
+       if (__rlim_soft(&vxi->limit, id) > __rlim_hard(&vxi->limit, id))
+               __rlim_soft(&vxi->limit, id) = __rlim_hard(&vxi->limit, id);
+
+       return 0;
+}
+
+int vc_set_rlimit(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_rlimit_v0 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_set_rlimit(vxi, vc_data.id,
+               vc_data.minimum, vc_data.softlimit, vc_data.maximum);
+}
+
+#ifdef CONFIG_IA32_EMULATION
+
+int vc_set_rlimit_x32(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_rlimit_v0_x32 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_set_rlimit(vxi, vc_data.id,
+               vc_data.minimum, vc_data.softlimit, vc_data.maximum);
+}
+
+int vc_get_rlimit_x32(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_rlimit_v0_x32 vc_data;
+       int ret;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = do_get_rlimit(vxi, vc_data.id,
+               &vc_data.minimum, &vc_data.softlimit, &vc_data.maximum);
+       if (ret)
+               return ret;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+#endif /* CONFIG_IA32_EMULATION */
+
+
+int vc_get_rlimit_mask(uint32_t id, void __user *data)
+{
+       if (copy_to_user(data, &vlimit_mask, sizeof(vlimit_mask)))
+               return -EFAULT;
+       return 0;
+}
+
+
+static inline void vx_reset_minmax(struct _vx_limit *limit)
+{
+       rlim_t value;
+       int lim;
+
+       for (lim = 0; lim < NUM_LIMITS; lim++) {
+               value = __rlim_get(limit, lim);
+               __rlim_rmax(limit, lim) = value;
+               __rlim_rmin(limit, lim) = value;
+       }
+}
+
+
+int vc_reset_minmax(struct vx_info *vxi, void __user *data)
+{
+       vx_reset_minmax(&vxi->limit);
+       return 0;
+}
+
+
+int vc_rlimit_stat(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_rlimit_stat_v0 vc_data;
+       struct _vx_limit *limit = &vxi->limit;
+       int id;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       id = vc_data.id;
+       if (!is_accounted_vlimit(id))
+               return -EINVAL;
+
+       vx_limit_fixup(limit, id);
+       vc_data.hits = atomic_read(&__rlim_lhit(limit, id));
+       vc_data.value = __rlim_get(limit, id);
+       vc_data.minimum = __rlim_rmin(limit, id);
+       vc_data.maximum = __rlim_rmax(limit, id);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+
+void vx_vsi_meminfo(struct sysinfo *val)
+{
+       struct vx_info *vxi = current->vx_info;
+       unsigned long totalram, freeram;
+       rlim_t v;
+
+       /* we blindly accept the max */
+       v = __rlim_soft(&vxi->limit, RLIMIT_RSS);
+       totalram = (v != RLIM_INFINITY) ? v : val->totalram;
+
+       /* total minus used equals free */
+       v = __vx_cres_array_fixup(&vxi->limit, VLA_RSS);
+       freeram = (v < totalram) ? totalram - v : 0;
+
+       val->totalram = totalram;
+       val->freeram = freeram;
+       val->bufferram = 0;
+       val->totalhigh = 0;
+       val->freehigh = 0;
+       return;
+}
+
+void vx_vsi_swapinfo(struct sysinfo *val)
+{
+       struct vx_info *vxi = current->vx_info;
+       unsigned long totalswap, freeswap;
+       rlim_t v, w;
+
+       v = __rlim_soft(&vxi->limit, RLIMIT_RSS);
+       if (v == RLIM_INFINITY) {
+               val->freeswap = val->totalswap;
+               return;
+       }
+
+       /* we blindly accept the max */
+       w = __rlim_hard(&vxi->limit, RLIMIT_RSS);
+       totalswap = (w != RLIM_INFINITY) ? (w - v) : val->totalswap;
+
+       /* currently 'used' swap */
+       w = __vx_cres_array_fixup(&vxi->limit, VLA_RSS);
+       w -= (w > v) ? v : w;
+
+       /* total minus used equals free */
+       freeswap = (w < totalswap) ? totalswap - w : 0;
+
+       val->totalswap = totalswap;
+       val->freeswap = freeswap;
+       return;
+}
+
+
+unsigned long vx_badness(struct task_struct *task, struct mm_struct *mm)
+{
+       struct vx_info *vxi = mm->mm_vx_info;
+       unsigned long points;
+       rlim_t v, w;
+
+       if (!vxi)
+               return 0;
+
+       points = vxi->vx_badness_bias;
+
+       v = __vx_cres_array_fixup(&vxi->limit, VLA_RSS);
+       w = __rlim_soft(&vxi->limit, RLIMIT_RSS);
+       points += (v > w) ? (v - w) : 0;
+
+       return points;
+}
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/limit_init.h linux-2.6.22.10-vs2.3.0.29/kernel/vserver/limit_init.h
--- linux-2.6.22.10/kernel/vserver/limit_init.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/limit_init.h      2007-10-25 17:05:55 +0200
@@ -0,0 +1,33 @@
+
+
+static inline void vx_info_init_limit(struct _vx_limit *limit)
+{
+       int lim;
+
+       for (lim = 0; lim < NUM_LIMITS; lim++) {
+               __rlim_soft(limit, lim) = RLIM_INFINITY;
+               __rlim_hard(limit, lim) = RLIM_INFINITY;
+               __rlim_set(limit, lim, 0);
+               atomic_set(&__rlim_lhit(limit, lim), 0);
+               __rlim_rmin(limit, lim) = 0;
+               __rlim_rmax(limit, lim) = 0;
+       }
+}
+
+static inline void vx_info_exit_limit(struct _vx_limit *limit)
+{
+#ifdef CONFIG_VSERVER_WARN
+       rlim_t value;
+       int lim;
+
+       for (lim = 0; lim < NUM_LIMITS; lim++) {
+               if ((1 << lim) & VLIM_NOCHECK)
+                       continue;
+               value = __rlim_get(limit, lim);
+               vxwprintk_xid(value,
+                       "!!! limit: %p[%s,%d] = %ld on exit.",
+                       limit, vlimit_name[lim], lim, (long)value);
+       }
+#endif
+}
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/limit_proc.h linux-2.6.22.10-vs2.3.0.29/kernel/vserver/limit_proc.h
--- linux-2.6.22.10/kernel/vserver/limit_proc.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/limit_proc.h      2007-08-05 20:53:13 +0200
@@ -0,0 +1,57 @@
+#ifndef _VX_LIMIT_PROC_H
+#define _VX_LIMIT_PROC_H
+
+#include <linux/vserver/limit_int.h>
+
+
+#define VX_LIMIT_FMT   ":\t%8ld\t%8ld/%8ld\t%8lld/%8lld\t%6d\n"
+#define VX_LIMIT_TOP   \
+       "Limit\t current\t     min/max\t\t    soft/hard\t\thits\n"
+
+#define VX_LIMIT_ARG(r)                                \
+       (unsigned long)__rlim_get(limit, r),    \
+       (unsigned long)__rlim_rmin(limit, r),   \
+       (unsigned long)__rlim_rmax(limit, r),   \
+       VX_VLIM(__rlim_soft(limit, r)),         \
+       VX_VLIM(__rlim_hard(limit, r)),         \
+       atomic_read(&__rlim_lhit(limit, r))
+
+static inline int vx_info_proc_limit(struct _vx_limit *limit, char *buffer)
+{
+       vx_limit_fixup(limit, -1);
+       return sprintf(buffer, VX_LIMIT_TOP
+               "PROC"  VX_LIMIT_FMT
+               "VM"    VX_LIMIT_FMT
+               "VML"   VX_LIMIT_FMT
+               "RSS"   VX_LIMIT_FMT
+               "ANON"  VX_LIMIT_FMT
+               "RMAP"  VX_LIMIT_FMT
+               "FILES" VX_LIMIT_FMT
+               "OFD"   VX_LIMIT_FMT
+               "LOCKS" VX_LIMIT_FMT
+               "SOCK"  VX_LIMIT_FMT
+               "MSGQ"  VX_LIMIT_FMT
+               "SHM"   VX_LIMIT_FMT
+               "SEMA"  VX_LIMIT_FMT
+               "SEMS"  VX_LIMIT_FMT
+               "DENT"  VX_LIMIT_FMT,
+               VX_LIMIT_ARG(RLIMIT_NPROC),
+               VX_LIMIT_ARG(RLIMIT_AS),
+               VX_LIMIT_ARG(RLIMIT_MEMLOCK),
+               VX_LIMIT_ARG(RLIMIT_RSS),
+               VX_LIMIT_ARG(VLIMIT_ANON),
+               VX_LIMIT_ARG(VLIMIT_MAPPED),
+               VX_LIMIT_ARG(RLIMIT_NOFILE),
+               VX_LIMIT_ARG(VLIMIT_OPENFD),
+               VX_LIMIT_ARG(RLIMIT_LOCKS),
+               VX_LIMIT_ARG(VLIMIT_NSOCK),
+               VX_LIMIT_ARG(RLIMIT_MSGQUEUE),
+               VX_LIMIT_ARG(VLIMIT_SHMEM),
+               VX_LIMIT_ARG(VLIMIT_SEMARY),
+               VX_LIMIT_ARG(VLIMIT_NSEMS),
+               VX_LIMIT_ARG(VLIMIT_DENTRY));
+}
+
+#endif /* _VX_LIMIT_PROC_H */
+
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/monitor.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/monitor.c
--- linux-2.6.22.10/kernel/vserver/monitor.c    1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/monitor.c 2007-08-15 23:18:20 +0200
@@ -0,0 +1,138 @@
+/*
+ *  kernel/vserver/monitor.c
+ *
+ *  Virtual Context Scheduler Monitor
+ *
+ *  Copyright (C) 2006-2007 Herbert Pötzl
+ *
+ *  V0.01  basic design
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/jiffies.h>
+#include <asm/uaccess.h>
+#include <asm/atomic.h>
+
+#include <linux/vserver/monitor.h>
+#include <linux/vserver/debug_cmd.h>
+
+
+#ifdef CONFIG_VSERVER_MONITOR
+#define VXM_SIZE       CONFIG_VSERVER_MONITOR_SIZE
+#else
+#define VXM_SIZE       64
+#endif
+
+struct _vx_monitor {
+       unsigned int counter;
+
+       struct _vx_mon_entry entry[VXM_SIZE+1];
+};
+
+
+DEFINE_PER_CPU(struct _vx_monitor, vx_monitor_buffer);
+
+unsigned volatile int vxm_active = 1;
+
+static atomic_t sequence = ATOMIC_INIT(0);
+
+
+/*     vxm_advance()
+
+       * requires disabled preemption                          */
+
+struct _vx_mon_entry *vxm_advance(int cpu)
+{
+       struct _vx_monitor *mon = &per_cpu(vx_monitor_buffer, cpu);
+       struct _vx_mon_entry *entry;
+       unsigned int index;
+
+       index = vxm_active ? (mon->counter++ % VXM_SIZE) : VXM_SIZE;
+       entry = &mon->entry[index];
+
+       entry->ev.seq = atomic_inc_return(&sequence);
+       entry->ev.jif = jiffies;
+       return entry;
+}
+
+EXPORT_SYMBOL_GPL(vxm_advance);
+
+
+int do_read_monitor(struct __user _vx_mon_entry *data,
+       int cpu, uint32_t *index, uint32_t *count)
+{
+       int pos, ret = 0;
+       struct _vx_monitor *mon = &per_cpu(vx_monitor_buffer, cpu);
+       int end = mon->counter;
+       int start = end - VXM_SIZE + 2;
+       int idx = *index;
+
+       /* special case: get current pos */
+       if (!*count) {
+               *index = end;
+               return 0;
+       }
+
+       /* have we lost some data? */
+       if (idx < start)
+               idx = start;
+
+       for (pos = 0; (pos < *count) && (idx < end); pos++, idx++) {
+               struct _vx_mon_entry *entry =
+                       &mon->entry[idx % VXM_SIZE];
+
+               /* send entry to userspace */
+               ret = copy_to_user(&data[pos], entry, sizeof(*entry));
+               if (ret)
+                       break;
+       }
+       /* save new index and count */
+       *index = idx;
+       *count = pos;
+       return ret ? ret : (*index < end);
+}
+
+int vc_read_monitor(uint32_t id, void __user *data)
+{
+       struct vcmd_read_monitor_v0 vc_data;
+       int ret;
+
+       if (id >= NR_CPUS)
+               return -EINVAL;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = do_read_monitor((struct __user _vx_mon_entry *)vc_data.data,
+               id, &vc_data.index, &vc_data.count);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return ret;
+}
+
+#ifdef CONFIG_COMPAT
+
+int vc_read_monitor_x32(uint32_t id, void __user *data)
+{
+       struct vcmd_read_monitor_v0_x32 vc_data;
+       int ret;
+
+       if (id >= NR_CPUS)
+               return -EINVAL;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       ret = do_read_monitor((struct __user _vx_mon_entry *)
+               compat_ptr(vc_data.data_ptr),
+               id, &vc_data.index, &vc_data.count);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return ret;
+}
+
+#endif /* CONFIG_COMPAT */
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/network.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/network.c
--- linux-2.6.22.10/kernel/vserver/network.c    1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/network.c 2007-10-05 14:54:36 +0200
@@ -0,0 +1,862 @@
+/*
+ *  linux/kernel/vserver/network.c
+ *
+ *  Virtual Server: Network Support
+ *
+ *  Copyright (C) 2003-2007  Herbert Pötzl
+ *
+ *  V0.01  broken out from vcontext V0.05
+ *  V0.02  cleaned up implementation
+ *  V0.03  added equiv nx commands
+ *  V0.04  switch to RCU based hash
+ *  V0.05  and back to locking again
+ *  V0.06  changed vcmds to nxi arg
+ *  V0.07  have __create claim() the nxi
+ *
+ */
+
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/rcupdate.h>
+
+#include <linux/vs_network.h>
+#include <linux/vserver/network_cmd.h>
+
+
+atomic_t nx_global_ctotal      = ATOMIC_INIT(0);
+atomic_t nx_global_cactive     = ATOMIC_INIT(0);
+
+static struct kmem_cache *nx_addr_v4_cachep = NULL;
+static struct kmem_cache *nx_addr_v6_cachep = NULL;
+
+
+static int __init init_network(void)
+{
+       nx_addr_v4_cachep = kmem_cache_create("nx_v4_addr_cache",
+               sizeof(struct nx_addr_v4), 0, SLAB_PANIC, NULL, NULL);
+       nx_addr_v6_cachep = kmem_cache_create("nx_v6_addr_cache",
+               sizeof(struct nx_addr_v6), 0, SLAB_PANIC, NULL, NULL);
+       return 0;
+}
+
+
+/*     __alloc_nx_addr_v4()                                    */
+
+static inline struct nx_addr_v4 *__alloc_nx_addr_v4(void)
+{
+       struct nx_addr_v4 *nxa = kmem_cache_alloc(
+               nx_addr_v4_cachep, GFP_KERNEL);
+
+       if (!IS_ERR(nxa))
+               memset(nxa, 0, sizeof(*nxa));
+       return nxa;
+}
+
+/*     __dealloc_nx_addr_v4()                                  */
+
+static inline void __dealloc_nx_addr_v4(struct nx_addr_v4 *nxa)
+{
+       kmem_cache_free(nx_addr_v4_cachep, nxa);
+}
+
+/*     __dealloc_nx_addr_v4_all()                              */
+
+static inline void __dealloc_nx_addr_v4_all(struct nx_addr_v4 *nxa)
+{
+       while (nxa) {
+               struct nx_addr_v4 *next = nxa->next;
+
+               __dealloc_nx_addr_v4(nxa);
+               nxa = next;
+       }
+}
+
+
+#ifdef CONFIG_IPV6
+
+/*     __alloc_nx_addr_v6()                                    */
+
+static inline struct nx_addr_v6 *__alloc_nx_addr_v6(void)
+{
+       struct nx_addr_v6 *nxa = kmem_cache_alloc(
+               nx_addr_v6_cachep, GFP_KERNEL);
+
+       if (!IS_ERR(nxa))
+               memset(nxa, 0, sizeof(*nxa));
+       return nxa;
+}
+
+/*     __dealloc_nx_addr_v6()                                  */
+
+static inline void __dealloc_nx_addr_v6(struct nx_addr_v6 *nxa)
+{
+       kmem_cache_free(nx_addr_v6_cachep, nxa);
+}
+
+/*     __dealloc_nx_addr_v6_all()                              */
+
+static inline void __dealloc_nx_addr_v6_all(struct nx_addr_v6 *nxa)
+{
+       while (nxa) {
+               struct nx_addr_v6 *next = nxa->next;
+
+               __dealloc_nx_addr_v6(nxa);
+               nxa = next;
+       }
+}
+
+#endif /* CONFIG_IPV6 */
+
+
+/*     __alloc_nx_info()
+
+       * allocate an initialized nx_info struct
+       * doesn't make it visible (hash)                        */
+
+static struct nx_info *__alloc_nx_info(nid_t nid)
+{
+       struct nx_info *new = NULL;
+
+       vxdprintk(VXD_CBIT(nid, 1), "alloc_nx_info(%d)*", nid);
+
+       /* would this benefit from a slab cache? */
+       new = kmalloc(sizeof(struct nx_info), GFP_KERNEL);
+       if (!new)
+               return 0;
+
+       memset(new, 0, sizeof(struct nx_info));
+       new->nx_id = nid;
+       INIT_HLIST_NODE(&new->nx_hlist);
+       atomic_set(&new->nx_usecnt, 0);
+       atomic_set(&new->nx_tasks, 0);
+       new->nx_state = 0;
+
+       new->nx_flags = NXF_INIT_SET;
+
+       /* rest of init goes here */
+
+       new->v4_lback.s_addr = htonl(INADDR_LOOPBACK);
+       new->v4_bcast.s_addr = htonl(INADDR_BROADCAST);
+
+       vxdprintk(VXD_CBIT(nid, 0),
+               "alloc_nx_info(%d) = %p", nid, new);
+       atomic_inc(&nx_global_ctotal);
+       return new;
+}
+
+/*     __dealloc_nx_info()
+
+       * final disposal of nx_info                             */
+
+static void __dealloc_nx_info(struct nx_info *nxi)
+{
+       vxdprintk(VXD_CBIT(nid, 0),
+               "dealloc_nx_info(%p)", nxi);
+
+       nxi->nx_hlist.next = LIST_POISON1;
+       nxi->nx_id = -1;
+
+       BUG_ON(atomic_read(&nxi->nx_usecnt));
+       BUG_ON(atomic_read(&nxi->nx_tasks));
+
+       __dealloc_nx_addr_v4_all(nxi->v4.next);
+
+       nxi->nx_state |= NXS_RELEASED;
+       kfree(nxi);
+       atomic_dec(&nx_global_ctotal);
+}
+
+static void __shutdown_nx_info(struct nx_info *nxi)
+{
+       nxi->nx_state |= NXS_SHUTDOWN;
+       vs_net_change(nxi, VSC_NETDOWN);
+}
+
+/*     exported stuff                                          */
+
+void free_nx_info(struct nx_info *nxi)
+{
+       /* context shutdown is mandatory */
+       BUG_ON(nxi->nx_state != NXS_SHUTDOWN);
+
+       /* context must not be hashed */
+       BUG_ON(nxi->nx_state & NXS_HASHED);
+
+       BUG_ON(atomic_read(&nxi->nx_usecnt));
+       BUG_ON(atomic_read(&nxi->nx_tasks));
+
+       __dealloc_nx_info(nxi);
+}
+
+
+void __nx_set_lback(struct nx_info *nxi)
+{
+       int nid = nxi->nx_id;
+       __be32 lback = htonl(INADDR_LOOPBACK ^ ((nid & 0xFFFF) << 8));
+
+       nxi->v4_lback.s_addr = lback;
+}
+
+extern int __nx_inet_add_lback(__be32 addr);
+extern int __nx_inet_del_lback(__be32 addr);
+
+
+/*     hash table for nx_info hash */
+
+#define NX_HASH_SIZE   13
+
+struct hlist_head nx_info_hash[NX_HASH_SIZE];
+
+static spinlock_t nx_info_hash_lock = SPIN_LOCK_UNLOCKED;
+
+
+static inline unsigned int __hashval(nid_t nid)
+{
+       return (nid % NX_HASH_SIZE);
+}
+
+
+
+/*     __hash_nx_info()
+
+       * add the nxi to the global hash table
+       * requires the hash_lock to be held                     */
+
+static inline void __hash_nx_info(struct nx_info *nxi)
+{
+       struct hlist_head *head;
+
+       vxd_assert_lock(&nx_info_hash_lock);
+       vxdprintk(VXD_CBIT(nid, 4),
+               "__hash_nx_info: %p[#%d]", nxi, nxi->nx_id);
+
+       /* context must not be hashed */
+       BUG_ON(nx_info_state(nxi, NXS_HASHED));
+
+       nxi->nx_state |= NXS_HASHED;
+       head = &nx_info_hash[__hashval(nxi->nx_id)];
+       hlist_add_head(&nxi->nx_hlist, head);
+       atomic_inc(&nx_global_cactive);
+}
+
+/*     __unhash_nx_info()
+
+       * remove the nxi from the global hash table
+       * requires the hash_lock to be held                     */
+
+static inline void __unhash_nx_info(struct nx_info *nxi)
+{
+       vxd_assert_lock(&nx_info_hash_lock);
+       vxdprintk(VXD_CBIT(nid, 4),
+               "__unhash_nx_info: %p[#%d.%d.%d]", nxi, nxi->nx_id,
+               atomic_read(&nxi->nx_usecnt), atomic_read(&nxi->nx_tasks));
+
+       /* context must be hashed */
+       BUG_ON(!nx_info_state(nxi, NXS_HASHED));
+       /* but without tasks */
+       BUG_ON(atomic_read(&nxi->nx_tasks));
+
+       nxi->nx_state &= ~NXS_HASHED;
+       hlist_del(&nxi->nx_hlist);
+       atomic_dec(&nx_global_cactive);
+}
+
+
+/*     __lookup_nx_info()
+
+       * requires the hash_lock to be held
+       * doesn't increment the nx_refcnt                       */
+
+static inline struct nx_info *__lookup_nx_info(nid_t nid)
+{
+       struct hlist_head *head = &nx_info_hash[__hashval(nid)];
+       struct hlist_node *pos;
+       struct nx_info *nxi;
+
+       vxd_assert_lock(&nx_info_hash_lock);
+       hlist_for_each(pos, head) {
+               nxi = hlist_entry(pos, struct nx_info, nx_hlist);
+
+               if (nxi->nx_id == nid)
+                       goto found;
+       }
+       nxi = NULL;
+found:
+       vxdprintk(VXD_CBIT(nid, 0),
+               "__lookup_nx_info(#%u): %p[#%u]",
+               nid, nxi, nxi ? nxi->nx_id : 0);
+       return nxi;
+}
+
+
+/*     __create_nx_info()
+
+       * create the requested context
+       * get(), claim() and hash it                            */
+
+static struct nx_info *__create_nx_info(int id)
+{
+       struct nx_info *new, *nxi = NULL;
+
+       vxdprintk(VXD_CBIT(nid, 1), "create_nx_info(%d)*", id);
+
+       if (!(new = __alloc_nx_info(id)))
+               return ERR_PTR(-ENOMEM);
+
+       /* required to make dynamic xids unique */
+       spin_lock(&nx_info_hash_lock);
+
+       /* static context requested */
+       if ((nxi = __lookup_nx_info(id))) {
+               vxdprintk(VXD_CBIT(nid, 0),
+                       "create_nx_info(%d) = %p (already there)", id, nxi);
+               if (nx_info_flags(nxi, NXF_STATE_SETUP, 0))
+                       nxi = ERR_PTR(-EBUSY);
+               else
+                       nxi = ERR_PTR(-EEXIST);
+               goto out_unlock;
+       }
+       /* new context */
+       vxdprintk(VXD_CBIT(nid, 0),
+               "create_nx_info(%d) = %p (new)", id, new);
+       claim_nx_info(new, NULL);
+       __nx_set_lback(new);
+       __hash_nx_info(get_nx_info(new));
+       nxi = new, new = NULL;
+
+out_unlock:
+       spin_unlock(&nx_info_hash_lock);
+       if (new)
+               __dealloc_nx_info(new);
+       return nxi;
+}
+
+
+
+/*     exported stuff                                          */
+
+
+void unhash_nx_info(struct nx_info *nxi)
+{
+       __shutdown_nx_info(nxi);
+       spin_lock(&nx_info_hash_lock);
+       __unhash_nx_info(nxi);
+       spin_unlock(&nx_info_hash_lock);
+}
+
+/*     lookup_nx_info()
+
+       * search for a nx_info and get() it
+       * negative id means current                             */
+
+struct nx_info *lookup_nx_info(int id)
+{
+       struct nx_info *nxi = NULL;
+
+       if (id < 0) {
+               nxi = get_nx_info(current->nx_info);
+       } else if (id > 1) {
+               spin_lock(&nx_info_hash_lock);
+               nxi = get_nx_info(__lookup_nx_info(id));
+               spin_unlock(&nx_info_hash_lock);
+       }
+       return nxi;
+}
+
+/*     nid_is_hashed()
+
+       * verify that nid is still hashed                       */
+
+int nid_is_hashed(nid_t nid)
+{
+       int hashed;
+
+       spin_lock(&nx_info_hash_lock);
+       hashed = (__lookup_nx_info(nid) != NULL);
+       spin_unlock(&nx_info_hash_lock);
+       return hashed;
+}
+
+
+#ifdef CONFIG_PROC_FS
+
+/*     get_nid_list()
+
+       * get a subset of hashed nids for proc
+       * assumes size is at least one                          */
+
+int get_nid_list(int index, unsigned int *nids, int size)
+{
+       int hindex, nr_nids = 0;
+
+       /* only show current and children */
+       if (!nx_check(0, VS_ADMIN | VS_WATCH)) {
+               if (index > 0)
+                       return 0;
+               nids[nr_nids] = nx_current_nid();
+               return 1;
+       }
+
+       for (hindex = 0; hindex < NX_HASH_SIZE; hindex++) {
+               struct hlist_head *head = &nx_info_hash[hindex];
+               struct hlist_node *pos;
+
+               spin_lock(&nx_info_hash_lock);
+               hlist_for_each(pos, head) {
+                       struct nx_info *nxi;
+
+                       if (--index > 0)
+                               continue;
+
+                       nxi = hlist_entry(pos, struct nx_info, nx_hlist);
+                       nids[nr_nids] = nxi->nx_id;
+                       if (++nr_nids >= size) {
+                               spin_unlock(&nx_info_hash_lock);
+                               goto out;
+                       }
+               }
+               /* keep the lock time short */
+               spin_unlock(&nx_info_hash_lock);
+       }
+out:
+       return nr_nids;
+}
+#endif
+
+
+/*
+ *     migrate task to new network
+ *     gets nxi, puts old_nxi on change
+ */
+
+int nx_migrate_task(struct task_struct *p, struct nx_info *nxi)
+{
+       struct nx_info *old_nxi;
+       int ret = 0;
+
+       if (!p || !nxi)
+               BUG();
+
+       vxdprintk(VXD_CBIT(nid, 5),
+               "nx_migrate_task(%p,%p[#%d.%d.%d])",
+               p, nxi, nxi->nx_id,
+               atomic_read(&nxi->nx_usecnt),
+               atomic_read(&nxi->nx_tasks));
+
+       if (nx_info_flags(nxi, NXF_INFO_PRIVATE, 0) &&
+               !nx_info_flags(nxi, NXF_STATE_SETUP, 0))
+               return -EACCES;
+
+       if (nx_info_state(nxi, NXS_SHUTDOWN))
+               return -EFAULT;
+
+       /* maybe disallow this completely? */
+       old_nxi = task_get_nx_info(p);
+       if (old_nxi == nxi)
+               goto out;
+
+       task_lock(p);
+       if (old_nxi)
+               clr_nx_info(&p->nx_info);
+       claim_nx_info(nxi, p);
+       set_nx_info(&p->nx_info, nxi);
+       p->nid = nxi->nx_id;
+       task_unlock(p);
+
+       vxdprintk(VXD_CBIT(nid, 5),
+               "moved task %p into nxi:%p[#%d]",
+               p, nxi, nxi->nx_id);
+
+       if (old_nxi)
+               release_nx_info(old_nxi, p);
+       ret = 0;
+out:
+       put_nx_info(old_nxi);
+       return ret;
+}
+
+
+void nx_set_persistent(struct nx_info *nxi)
+{
+       vxdprintk(VXD_CBIT(nid, 6),
+               "nx_set_persistent(%p[#%d])", nxi, nxi->nx_id);
+
+       get_nx_info(nxi);
+       claim_nx_info(nxi, NULL);
+}
+
+void nx_clear_persistent(struct nx_info *nxi)
+{
+       vxdprintk(VXD_CBIT(nid, 6),
+               "nx_clear_persistent(%p[#%d])", nxi, nxi->nx_id);
+
+       release_nx_info(nxi, NULL);
+       put_nx_info(nxi);
+}
+
+void nx_update_persistent(struct nx_info *nxi)
+{
+       if (nx_info_flags(nxi, NXF_PERSISTENT, 0))
+               nx_set_persistent(nxi);
+       else
+               nx_clear_persistent(nxi);
+}
+
+/* vserver syscall commands below here */
+
+/* taks nid and nx_info functions */
+
+#include <asm/uaccess.h>
+
+
+int vc_task_nid(uint32_t id)
+{
+       nid_t nid;
+
+       if (id) {
+               struct task_struct *tsk;
+
+               read_lock(&tasklist_lock);
+               tsk = find_task_by_real_pid(id);
+               nid = (tsk) ? tsk->nid : -ESRCH;
+               read_unlock(&tasklist_lock);
+       } else
+               nid = nx_current_nid();
+       return nid;
+}
+
+
+int vc_nx_info(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_nx_info_v0 vc_data;
+
+       vc_data.nid = nxi->nx_id;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+
+/* network functions */
+
+int vc_net_create(uint32_t nid, void __user *data)
+{
+       struct vcmd_net_create vc_data = { .flagword = NXF_INIT_SET };
+       struct nx_info *new_nxi;
+       int ret;
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       if ((nid > MAX_S_CONTEXT) || (nid < 2))
+               return -EINVAL;
+
+       new_nxi = __create_nx_info(nid);
+       if (IS_ERR(new_nxi))
+               return PTR_ERR(new_nxi);
+
+       /* initial flags */
+       new_nxi->nx_flags = vc_data.flagword;
+
+       ret = -ENOEXEC;
+       if (vs_net_change(new_nxi, VSC_NETUP))
+               goto out;
+
+       ret = nx_migrate_task(current, new_nxi);
+       if (ret)
+               goto out;
+
+       /* return context id on success */
+       ret = new_nxi->nx_id;
+
+       /* get a reference for persistent contexts */
+       if ((vc_data.flagword & NXF_PERSISTENT))
+               nx_set_persistent(new_nxi);
+out:
+       release_nx_info(new_nxi, NULL);
+       put_nx_info(new_nxi);
+       return ret;
+}
+
+
+int vc_net_migrate(struct nx_info *nxi, void __user *data)
+{
+       return nx_migrate_task(current, nxi);
+}
+
+
+
+int do_add_v4_addr(struct nx_info *nxi, __be32 ip, __be32 ip2, __be32 mask,
+       uint16_t type, uint16_t flags)
+{
+       struct nx_addr_v4 *nxa = &nxi->v4;
+
+       if (NX_IPV4(nxi)) {
+               /* locate last entry */
+               for (; nxa->next; nxa = nxa->next);
+               nxa->next = __alloc_nx_addr_v4();
+               nxa = nxa->next;
+
+               if (IS_ERR(nxa))
+                       return PTR_ERR(nxa);
+       }
+
+       if (nxi->v4.next)
+               /* remove single ip for ip list */
+               nxi->nx_flags &= ~NXF_SINGLE_IP;
+
+       nxa->ip[0].s_addr = ip;
+       nxa->ip[1].s_addr = ip2;
+       nxa->mask.s_addr = mask;
+       nxa->type = type;
+       nxa->flags = flags;
+       return 0;
+}
+
+
+int vc_net_add(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_net_addr_v0 vc_data;
+       int index, ret = 0;
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       switch (vc_data.type) {
+       case NXA_TYPE_IPV4:
+               if ((vc_data.count < 1) || (vc_data.count > 4))
+                       return -EINVAL;
+
+               index = 0;
+               while (index < vc_data.count) {
+                       ret = do_add_v4_addr(nxi, vc_data.ip[index].s_addr, 0,
+                               vc_data.mask[index].s_addr, NXA_TYPE_ADDR, 0);
+                       if (ret)
+                               return ret;
+                       index++;
+               }
+               ret = index;
+               break;
+
+       case NXA_TYPE_IPV4|NXA_MOD_BCAST:
+               nxi->v4_bcast = vc_data.ip[0];
+               ret = 1;
+               break;
+
+       case NXA_TYPE_IPV4|NXA_MOD_LBACK:
+               nxi->v4_lback = vc_data.ip[0];
+               ret = 1;
+               break;
+
+       default:
+               ret = -EINVAL;
+               break;
+       }
+       return ret;
+}
+
+int vc_net_remove(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_net_addr_v0 vc_data;
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       switch (vc_data.type) {
+       case NXA_TYPE_ANY:
+               __dealloc_nx_addr_v4_all(xchg(&nxi->v4.next, NULL));
+               memset(&nxi->v4, 0, sizeof(nxi->v4));
+               break;
+
+       default:
+               return -EINVAL;
+       }
+       return 0;
+}
+
+
+int vc_net_add_ipv4(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_net_addr_ipv4_v1 vc_data;
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       switch (vc_data.type) {
+       case NXA_TYPE_ADDR:
+       case NXA_TYPE_RANGE:
+       case NXA_TYPE_MASK:
+               return do_add_v4_addr(nxi, vc_data.ip.s_addr, 0,
+                       vc_data.mask.s_addr, vc_data.type, vc_data.flags);
+
+       case NXA_TYPE_ADDR | NXA_MOD_BCAST:
+               nxi->v4_bcast = vc_data.ip;
+               break;
+
+       case NXA_TYPE_ADDR | NXA_MOD_LBACK:
+               nxi->v4_lback = vc_data.ip;
+               break;
+
+       default:
+               return -EINVAL;
+       }
+       return 0;
+}
+
+int vc_net_remove_ipv4(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_net_addr_ipv4_v1 vc_data;
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       switch (vc_data.type) {
+/*     case NXA_TYPE_ADDR:
+               break;          */
+
+       case NXA_TYPE_ANY:
+               __dealloc_nx_addr_v4_all(xchg(&nxi->v4.next, NULL));
+               memset(&nxi->v4, 0, sizeof(nxi->v4));
+               break;
+
+       default:
+               return -EINVAL;
+       }
+       return 0;
+}
+
+
+#ifdef CONFIG_IPV6
+
+int do_add_v6_addr(struct nx_info *nxi,
+       struct in6_addr *ip, struct in6_addr *mask,
+       uint32_t prefix, uint16_t type, uint16_t flags)
+{
+       struct nx_addr_v6 *nxa = &nxi->v6;
+
+       if (NX_IPV6(nxi)) {
+               /* locate last entry */
+               for (; nxa->next; nxa = nxa->next);
+               nxa->next = __alloc_nx_addr_v6();
+               nxa = nxa->next;
+
+               if (IS_ERR(nxa))
+                       return PTR_ERR(nxa);
+       }
+
+       nxa->ip = *ip;
+       nxa->mask = *mask;
+       nxa->prefix = prefix;
+       nxa->type = type;
+       nxa->flags = flags;
+       return 0;
+}
+
+
+int vc_net_add_ipv6(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_net_addr_ipv6_v1 vc_data;
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       switch (vc_data.type) {
+       case NXA_TYPE_ADDR:
+       case NXA_TYPE_MASK:
+               return do_add_v6_addr(nxi, &vc_data.ip, &vc_data.mask,
+                       vc_data.prefix, vc_data.type, vc_data.flags);
+       default:
+               return -EINVAL;
+       }
+       return 0;
+}
+
+int vc_net_remove_ipv6(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_net_addr_ipv6_v1 vc_data;
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       switch (vc_data.type) {
+       case NXA_TYPE_ANY:
+               __dealloc_nx_addr_v6_all(xchg(&nxi->v6.next, NULL));
+               memset(&nxi->v6, 0, sizeof(nxi->v6));
+               break;
+
+       default:
+               return -EINVAL;
+       }
+       return 0;
+}
+
+#endif /* CONFIG_IPV6 */
+
+
+int vc_get_nflags(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_net_flags_v0 vc_data;
+
+       vc_data.flagword = nxi->nx_flags;
+
+       /* special STATE flag handling */
+       vc_data.mask = vs_mask_flags(~0ULL, nxi->nx_flags, NXF_ONE_TIME);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+int vc_set_nflags(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_net_flags_v0 vc_data;
+       uint64_t mask, trigger;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       /* special STATE flag handling */
+       mask = vs_mask_mask(vc_data.mask, nxi->nx_flags, NXF_ONE_TIME);
+       trigger = (mask & nxi->nx_flags) ^ (mask & vc_data.flagword);
+
+       nxi->nx_flags = vs_mask_flags(nxi->nx_flags,
+               vc_data.flagword, mask);
+       if (trigger & NXF_PERSISTENT)
+               nx_update_persistent(nxi);
+
+       return 0;
+}
+
+int vc_get_ncaps(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_net_caps_v0 vc_data;
+
+       vc_data.ncaps = nxi->nx_ncaps;
+       vc_data.cmask = ~0ULL;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+int vc_set_ncaps(struct nx_info *nxi, void __user *data)
+{
+       struct vcmd_net_caps_v0 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       nxi->nx_ncaps = vs_mask_flags(nxi->nx_ncaps,
+               vc_data.ncaps, vc_data.cmask);
+       return 0;
+}
+
+
+#include <linux/module.h>
+
+module_init(init_network);
+
+EXPORT_SYMBOL_GPL(free_nx_info);
+EXPORT_SYMBOL_GPL(unhash_nx_info);
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/proc.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/proc.c
--- linux-2.6.22.10/kernel/vserver/proc.c       1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/proc.c    2007-10-05 14:54:36 +0200
@@ -0,0 +1,1065 @@
+/*
+ *  linux/kernel/vserver/proc.c
+ *
+ *  Virtual Context Support
+ *
+ *  Copyright (C) 2003-2007  Herbert Pötzl
+ *
+ *  V0.01  basic structure
+ *  V0.02  adaptation vs1.3.0
+ *  V0.03  proc permissions
+ *  V0.04  locking/generic
+ *  V0.05  next generation procfs
+ *  V0.06  inode validation
+ *  V0.07  generic rewrite vid
+ *  V0.08  remove inode type
+ *
+ */
+
+#include <linux/proc_fs.h>
+#include <asm/unistd.h>
+
+#include <linux/vs_context.h>
+#include <linux/vs_network.h>
+#include <linux/vs_cvirt.h>
+#include <linux/vs_inet.h>
+#include <linux/vs_inet6.h>
+
+#include <linux/vserver/global.h>
+
+#include "cvirt_proc.h"
+#include "cacct_proc.h"
+#include "limit_proc.h"
+#include "sched_proc.h"
+#include "vci_config.h"
+
+static struct proc_dir_entry *proc_virtual;
+
+static struct proc_dir_entry *proc_virtnet;
+
+
+/* first the actual feeds */
+
+
+static int proc_vci(char *buffer)
+{
+       return sprintf(buffer,
+               "VCIVersion:\t%04x:%04x\n"
+               "VCISyscall:\t%d\n"
+               "VCIKernel:\t%08x\n",
+               VCI_VERSION >> 16,
+               VCI_VERSION & 0xFFFF,
+               __NR_vserver,
+               vci_kernel_config());
+}
+
+static int proc_virtual_info(char *buffer)
+{
+       return proc_vci(buffer);
+}
+
+static int proc_virtual_status(char *buffer)
+{
+       return sprintf(buffer,
+               "#CTotal:\t%d\n"
+               "#CActive:\t%d\n"
+               "#NSProxy:\t%d\t%d %d %d %d\n",
+               atomic_read(&vx_global_ctotal),
+               atomic_read(&vx_global_cactive),
+               atomic_read(&vs_global_nsproxy),
+               atomic_read(&vs_global_fs),
+               atomic_read(&vs_global_mnt_ns),
+               atomic_read(&vs_global_uts_ns),
+               atomic_read(&vs_global_ipc_ns));
+}
+
+
+int proc_vxi_info(struct vx_info *vxi, char *buffer)
+{
+       int length;
+
+       length = sprintf(buffer,
+               "ID:\t%d\n"
+               "Info:\t%p\n"
+               "Init:\t%d\n"
+               "OOM:\t%lld\n",
+               vxi->vx_id,
+               vxi,
+               vxi->vx_initpid,
+               vxi->vx_badness_bias);
+       return length;
+}
+
+int proc_vxi_status(struct vx_info *vxi, char *buffer)
+{
+       int length;
+
+       length = sprintf(buffer,
+               "UseCnt:\t%d\n"
+               "Tasks:\t%d\n"
+               "Flags:\t%016llx\n"
+               "BCaps:\t%016llx\n"
+               "CCaps:\t%016llx\n"
+               "Spaces:\t%08lx\n",
+               atomic_read(&vxi->vx_usecnt),
+               atomic_read(&vxi->vx_tasks),
+               (unsigned long long)vxi->vx_flags,
+               (unsigned long long)vxi->vx_bcaps,
+               (unsigned long long)vxi->vx_ccaps,
+               vxi->vx_nsmask);
+       return length;
+}
+
+int proc_vxi_limit(struct vx_info *vxi, char *buffer)
+{
+       return vx_info_proc_limit(&vxi->limit, buffer);
+}
+
+int proc_vxi_sched(struct vx_info *vxi, char *buffer)
+{
+       int cpu, length;
+
+       length = vx_info_proc_sched(&vxi->sched, buffer);
+       for_each_online_cpu(cpu) {
+               length += vx_info_proc_sched_pc(
+                       &vx_per_cpu(vxi, sched_pc, cpu),
+                       buffer + length, cpu);
+       }
+       return length;
+}
+
+int proc_vxi_nsproxy(struct vx_info *vxi, char *buffer)
+{
+       return vx_info_proc_nsproxy(vxi->vx_nsproxy, buffer);
+}
+
+int proc_vxi_cvirt(struct vx_info *vxi, char *buffer)
+{
+       int cpu, length;
+
+       vx_update_load(vxi);
+       length = vx_info_proc_cvirt(&vxi->cvirt, buffer);
+       for_each_online_cpu(cpu) {
+               length += vx_info_proc_cvirt_pc(
+                       &vx_per_cpu(vxi, cvirt_pc, cpu),
+                       buffer + length, cpu);
+       }
+       return length;
+}
+
+int proc_vxi_cacct(struct vx_info *vxi, char *buffer)
+{
+       return vx_info_proc_cacct(&vxi->cacct, buffer);
+}
+
+
+static int proc_virtnet_info(char *buffer)
+{
+       return proc_vci(buffer);
+}
+
+static int proc_virtnet_status(char *buffer)
+{
+       return sprintf(buffer,
+               "#CTotal:\t%d\n"
+               "#CActive:\t%d\n",
+               atomic_read(&nx_global_ctotal),
+               atomic_read(&nx_global_cactive));
+}
+
+int proc_nxi_info(struct nx_info *nxi, char *buffer)
+{
+       struct nx_addr_v4 *v4a;
+#ifdef CONFIG_IPV6
+       struct nx_addr_v6 *v6a;
+#endif
+       int length, i;
+
+       length = sprintf(buffer,
+               "ID:\t%d\n"
+               "Info:\t%p\n"
+               "Bcast:\t" NIPQUAD_FMT "\n"
+               "Lback:\t" NIPQUAD_FMT "\n",
+               nxi->nx_id,
+               nxi,
+               NIPQUAD(nxi->v4_bcast.s_addr),
+               NIPQUAD(nxi->v4_lback.s_addr));
+
+       if (!NX_IPV4(nxi))
+               goto skip_v4;
+       for (i = 0, v4a = &nxi->v4; v4a; i++, v4a = v4a->next)
+               length += sprintf(buffer + length, "%d:\t" NXAV4_FMT "\n",
+                       i, NXAV4(v4a));
+skip_v4:
+#ifdef CONFIG_IPV6
+       if (!NX_IPV6(nxi))
+               goto skip_v6;
+       for (i = 0, v6a = &nxi->v6; v6a; i++, v6a = v6a->next)
+               length += sprintf(buffer + length, "%d:\t" NXAV6_FMT "\n",
+                       i, NXAV6(v6a));
+skip_v6:
+#endif
+       return length;
+}
+
+int proc_nxi_status(struct nx_info *nxi, char *buffer)
+{
+       int length;
+
+       length = sprintf(buffer,
+               "UseCnt:\t%d\n"
+               "Tasks:\t%d\n"
+               "Flags:\t%016llx\n"
+               "NCaps:\t%016llx\n",
+               atomic_read(&nxi->nx_usecnt),
+               atomic_read(&nxi->nx_tasks),
+               (unsigned long long)nxi->nx_flags,
+               (unsigned long long)nxi->nx_ncaps);
+       return length;
+}
+
+
+
+/* here the inode helpers */
+
+struct vs_entry {
+       int len;
+       char *name;
+       mode_t mode;
+       struct inode_operations *iop;
+       struct file_operations *fop;
+       union proc_op op;
+};
+
+static struct inode *vs_proc_make_inode(struct super_block *sb, struct vs_entry *p)
+{
+       struct inode *inode = new_inode(sb);
+
+       if (!inode)
+               goto out;
+
+       inode->i_mode = p->mode;
+       if (p->iop)
+               inode->i_op = p->iop;
+       if (p->fop)
+               inode->i_fop = p->fop;
+
+       inode->i_nlink = (p->mode & S_IFDIR) ? 2 : 1;
+       inode->i_flags |= S_IMMUTABLE;
+
+       inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+
+       inode->i_uid = 0;
+       inode->i_gid = 0;
+       inode->i_tag = 0;
+out:
+       return inode;
+}
+
+static struct dentry *vs_proc_instantiate(struct inode *dir,
+       struct dentry *dentry, int id, void *ptr)
+{
+       struct vs_entry *p = ptr;
+       struct inode *inode = vs_proc_make_inode(dir->i_sb, p);
+       struct dentry *error = ERR_PTR(-EINVAL);
+
+       if (!inode)
+               goto out;
+
+       PROC_I(inode)->op = p->op;
+       PROC_I(inode)->fd = id;
+       d_add(dentry, inode);
+       error = NULL;
+out:
+       return error;
+}
+
+/* Lookups */
+
+typedef struct dentry *instantiate_t(struct inode *, struct dentry *, int, void *);
+
+/*
+ * Fill a directory entry.
+ *
+ * If possible create the dcache entry and derive our inode number and
+ * file type from dcache entry.
+ *
+ * Since all of the proc inode numbers are dynamically generated, the inode
+ * numbers do not exist until the inode is cache.  This means creating the
+ * the dcache entry in readdir is necessary to keep the inode numbers
+ * reported by readdir in sync with the inode numbers reported
+ * by stat.
+ */
+static int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir,
+       char *name, int len, instantiate_t instantiate, int id, void *ptr)
+{
+       struct dentry *child, *dir = filp->f_dentry;
+       struct inode *inode;
+       struct qstr qname;
+       ino_t ino = 0;
+       unsigned type = DT_UNKNOWN;
+
+       qname.name = name;
+       qname.len  = len;
+       qname.hash = full_name_hash(name, len);
+
+       child = d_lookup(dir, &qname);
+       if (!child) {
+               struct dentry *new;
+               new = d_alloc(dir, &qname);
+               if (new) {
+                       child = instantiate(dir->d_inode, new, id, ptr);
+                       if (child)
+                               dput(new);
+                       else
+                               child = new;
+               }
+       }
+       if (!child || IS_ERR(child) || !child->d_inode)
+               goto end_instantiate;
+       inode = child->d_inode;
+       if (inode) {
+               ino = inode->i_ino;
+               type = inode->i_mode >> 12;
+       }
+       dput(child);
+end_instantiate:
+       if (!ino)
+               ino = find_inode_number(dir, &qname);
+       if (!ino)
+               ino = 1;
+       return filldir(dirent, name, len, filp->f_pos, ino, type);
+}
+
+
+
+/* get and revalidate vx_info/xid */
+
+static inline
+struct vx_info *get_proc_vx_info(struct inode *inode)
+{
+       return lookup_vx_info(PROC_I(inode)->fd);
+}
+
+static int proc_xid_revalidate(struct dentry *dentry, struct nameidata *nd)
+{
+       struct inode *inode = dentry->d_inode;
+       xid_t xid = PROC_I(inode)->fd;
+
+       if (!xid || xid_is_hashed(xid))
+               return 1;
+       d_drop(dentry);
+       return 0;
+}
+
+
+/* get and revalidate nx_info/nid */
+
+static int proc_nid_revalidate(struct dentry *dentry, struct nameidata *nd)
+{
+       struct inode *inode = dentry->d_inode;
+       nid_t nid = PROC_I(inode)->fd;
+
+       if (!nid || nid_is_hashed(nid))
+               return 1;
+       d_drop(dentry);
+       return 0;
+}
+
+
+
+#define PROC_BLOCK_SIZE (PAGE_SIZE - 1024)
+
+static ssize_t proc_vs_info_read(struct file *file, char __user *buf,
+                         size_t count, loff_t *ppos)
+{
+       struct inode *inode = file->f_dentry->d_inode;
+       unsigned long page;
+       ssize_t length = 0;
+
+       if (count > PROC_BLOCK_SIZE)
+               count = PROC_BLOCK_SIZE;
+
+       /* fade that out as soon as stable */
+       WARN_ON(PROC_I(inode)->fd);
+
+       if (!(page = __get_free_page(GFP_KERNEL)))
+               return -ENOMEM;
+
+       BUG_ON(!PROC_I(inode)->op.proc_vs_read);
+       length = PROC_I(inode)->op.proc_vs_read((char *)page);
+
+       if (length >= 0)
+               length = simple_read_from_buffer(buf, count, ppos,
+                       (char *)page, length);
+
+       free_page(page);
+       return length;
+}
+
+static ssize_t proc_vx_info_read(struct file *file, char __user *buf,
+                         size_t count, loff_t *ppos)
+{
+       struct inode *inode = file->f_dentry->d_inode;
+       struct vx_info *vxi = NULL;
+       xid_t xid = PROC_I(inode)->fd;
+       unsigned long page;
+       ssize_t length = 0;
+
+       if (count > PROC_BLOCK_SIZE)
+               count = PROC_BLOCK_SIZE;
+
+       /* fade that out as soon as stable */
+       WARN_ON(!xid);
+       vxi = lookup_vx_info(xid);
+       if (!vxi)
+               goto out;
+
+       length = -ENOMEM;
+       if (!(page = __get_free_page(GFP_KERNEL)))
+               goto out_put;
+
+       BUG_ON(!PROC_I(inode)->op.proc_vxi_read);
+       length = PROC_I(inode)->op.proc_vxi_read(vxi, (char *)page);
+
+       if (length >= 0)
+               length = simple_read_from_buffer(buf, count, ppos,
+                       (char *)page, length);
+
+       free_page(page);
+out_put:
+       put_vx_info(vxi);
+out:
+       return length;
+}
+
+static ssize_t proc_nx_info_read(struct file *file, char __user *buf,
+                         size_t count, loff_t *ppos)
+{
+       struct inode *inode = file->f_dentry->d_inode;
+       struct nx_info *nxi = NULL;
+       nid_t nid = PROC_I(inode)->fd;
+       unsigned long page;
+       ssize_t length = 0;
+
+       if (count > PROC_BLOCK_SIZE)
+               count = PROC_BLOCK_SIZE;
+
+       /* fade that out as soon as stable */
+       WARN_ON(!nid);
+       nxi = lookup_nx_info(nid);
+       if (!nxi)
+               goto out;
+
+       length = -ENOMEM;
+       if (!(page = __get_free_page(GFP_KERNEL)))
+               goto out_put;
+
+       BUG_ON(!PROC_I(inode)->op.proc_nxi_read);
+       length = PROC_I(inode)->op.proc_nxi_read(nxi, (char *)page);
+
+       if (length >= 0)
+               length = simple_read_from_buffer(buf, count, ppos,
+                       (char *)page, length);
+
+       free_page(page);
+out_put:
+       put_nx_info(nxi);
+out:
+       return length;
+}
+
+
+
+/* here comes the lower level */
+
+
+#define NOD(NAME, MODE, IOP, FOP, OP) {        \
+       .len  = sizeof(NAME) - 1,       \
+       .name = (NAME),                 \
+       .mode = MODE,                   \
+       .iop  = IOP,                    \
+       .fop  = FOP,                    \
+       .op   = OP,                     \
+}
+
+
+#define DIR(NAME, MODE, OTYPE)                         \
+       NOD(NAME, (S_IFDIR | (MODE)),                   \
+               &proc_ ## OTYPE ## _inode_operations,   \
+               &proc_ ## OTYPE ## _file_operations, { } )
+
+#define INF(NAME, MODE, OTYPE)                         \
+       NOD(NAME, (S_IFREG | (MODE)), NULL,             \
+               &proc_vs_info_file_operations,          \
+               { .proc_vs_read = &proc_##OTYPE } )
+
+#define VINF(NAME, MODE, OTYPE)                                \
+       NOD(NAME, (S_IFREG | (MODE)), NULL,             \
+               &proc_vx_info_file_operations,          \
+               { .proc_vxi_read = &proc_##OTYPE } )
+
+#define NINF(NAME, MODE, OTYPE)                                \
+       NOD(NAME, (S_IFREG | (MODE)), NULL,             \
+               &proc_nx_info_file_operations,          \
+               { .proc_nxi_read = &proc_##OTYPE } )
+
+
+static struct file_operations proc_vs_info_file_operations = {
+       .read =         proc_vs_info_read,
+};
+
+static struct file_operations proc_vx_info_file_operations = {
+       .read =         proc_vx_info_read,
+};
+
+static struct dentry_operations proc_xid_dentry_operations = {
+       .d_revalidate = proc_xid_revalidate,
+};
+
+static struct vs_entry vx_base_stuff[] = {
+       VINF("info",    S_IRUGO, vxi_info),
+       VINF("status",  S_IRUGO, vxi_status),
+       VINF("limit",   S_IRUGO, vxi_limit),
+       VINF("sched",   S_IRUGO, vxi_sched),
+       VINF("nsproxy", S_IRUGO, vxi_nsproxy),
+       VINF("cvirt",   S_IRUGO, vxi_cvirt),
+       VINF("cacct",   S_IRUGO, vxi_cacct),
+       {}
+};
+
+
+
+
+static struct dentry *proc_xid_instantiate(struct inode *dir,
+       struct dentry *dentry, int id, void *ptr)
+{
+       dentry->d_op = &proc_xid_dentry_operations;
+       return vs_proc_instantiate(dir, dentry, id, ptr);
+}
+
+static struct dentry *proc_xid_lookup(struct inode *dir,
+       struct dentry *dentry, struct nameidata *nd)
+{
+       struct vs_entry *p = vx_base_stuff;
+       struct dentry *error = ERR_PTR(-ENOENT);
+
+       for (; p->name; p++) {
+               if (p->len != dentry->d_name.len)
+                       continue;
+               if (!memcmp(dentry->d_name.name, p->name, p->len))
+                       break;
+       }
+       if (!p->name)
+               goto out;
+
+       error = proc_xid_instantiate(dir, dentry, PROC_I(dir)->fd, p);
+out:
+       return error;
+}
+
+static int proc_xid_readdir(struct file *filp,
+       void *dirent, filldir_t filldir)
+{
+       struct dentry *dentry = filp->f_dentry;
+       struct inode *inode = dentry->d_inode;
+       struct vs_entry *p = vx_base_stuff;
+       int size = sizeof(vx_base_stuff) / sizeof(struct vs_entry);
+       int pos, index;
+       u64 ino;
+
+       pos = filp->f_pos;
+       switch (pos) {
+       case 0:
+               ino = inode->i_ino;
+               if (filldir(dirent, ".", 1, pos, ino, DT_DIR) < 0)
+                       goto out;
+               pos++;
+               /* fall through */
+       case 1:
+               ino = parent_ino(dentry);
+               if (filldir(dirent, "..", 2, pos, ino, DT_DIR) < 0)
+                       goto out;
+               pos++;
+               /* fall through */
+       default:
+               index = pos - 2;
+               if (index >= size)
+                       goto out;
+               for (p += index; p->name; p++) {
+                       if (proc_fill_cache(filp, dirent, filldir, p->name, p->len,
+                               vs_proc_instantiate, PROC_I(inode)->fd, p))
+                               goto out;
+                       pos++;
+               }
+       }
+out:
+       filp->f_pos = pos;
+       return 1;
+}
+
+
+
+static struct file_operations proc_nx_info_file_operations = {
+       .read =         proc_nx_info_read,
+};
+
+static struct dentry_operations proc_nid_dentry_operations = {
+       .d_revalidate = proc_nid_revalidate,
+};
+
+static struct vs_entry nx_base_stuff[] = {
+       NINF("info",    S_IRUGO, nxi_info),
+       NINF("status",  S_IRUGO, nxi_status),
+       {}
+};
+
+
+static struct dentry *proc_nid_instantiate(struct inode *dir,
+       struct dentry *dentry, int id, void *ptr)
+{
+       dentry->d_op = &proc_nid_dentry_operations;
+       return vs_proc_instantiate(dir, dentry, id, ptr);
+}
+
+static struct dentry *proc_nid_lookup(struct inode *dir,
+       struct dentry *dentry, struct nameidata *nd)
+{
+       struct vs_entry *p = nx_base_stuff;
+       struct dentry *error = ERR_PTR(-ENOENT);
+
+       for (; p->name; p++) {
+               if (p->len != dentry->d_name.len)
+                       continue;
+               if (!memcmp(dentry->d_name.name, p->name, p->len))
+                       break;
+       }
+       if (!p->name)
+               goto out;
+
+       error = proc_nid_instantiate(dir, dentry, PROC_I(dir)->fd, p);
+out:
+       return error;
+}
+
+static int proc_nid_readdir(struct file *filp,
+       void *dirent, filldir_t filldir)
+{
+       struct dentry *dentry = filp->f_dentry;
+       struct inode *inode = dentry->d_inode;
+       struct vs_entry *p = nx_base_stuff;
+       int size = sizeof(nx_base_stuff) / sizeof(struct vs_entry);
+       int pos, index;
+       u64 ino;
+
+       pos = filp->f_pos;
+       switch (pos) {
+       case 0:
+               ino = inode->i_ino;
+               if (filldir(dirent, ".", 1, pos, ino, DT_DIR) < 0)
+                       goto out;
+               pos++;
+               /* fall through */
+       case 1:
+               ino = parent_ino(dentry);
+               if (filldir(dirent, "..", 2, pos, ino, DT_DIR) < 0)
+                       goto out;
+               pos++;
+               /* fall through */
+       default:
+               index = pos - 2;
+               if (index >= size)
+                       goto out;
+               for (p += index; p->name; p++) {
+                       if (proc_fill_cache(filp, dirent, filldir, p->name, p->len,
+                               vs_proc_instantiate, PROC_I(inode)->fd, p))
+                               goto out;
+                       pos++;
+               }
+       }
+out:
+       filp->f_pos = pos;
+       return 1;
+}
+
+
+#define MAX_MULBY10    ((~0U - 9) / 10)
+
+static inline int atovid(const char *str, int len)
+{
+       int vid, c;
+
+       vid = 0;
+       while (len-- > 0) {
+               c = *str - '0';
+               str++;
+               if (c > 9)
+                       return -1;
+               if (vid >= MAX_MULBY10)
+                       return -1;
+               vid *= 10;
+               vid += c;
+               if (!vid)
+                       return -1;
+       }
+       return vid;
+}
+
+/* now the upper level (virtual) */
+
+
+static struct file_operations proc_xid_file_operations = {
+       .read =         generic_read_dir,
+       .readdir =      proc_xid_readdir,
+};
+
+static struct inode_operations proc_xid_inode_operations = {
+       .lookup =       proc_xid_lookup,
+};
+
+static struct vs_entry vx_virtual_stuff[] = {
+       INF("info",     S_IRUGO, virtual_info),
+       INF("status",   S_IRUGO, virtual_status),
+       DIR(NULL,       S_IRUGO | S_IXUGO, xid),
+};
+
+
+static struct dentry *proc_virtual_lookup(struct inode *dir,
+       struct dentry *dentry, struct nameidata *nd)
+{
+       struct vs_entry *p = vx_virtual_stuff;
+       struct dentry *error = ERR_PTR(-ENOENT);
+       int id = 0;
+
+       for (; p->name; p++) {
+               if (p->len != dentry->d_name.len)
+                       continue;
+               if (!memcmp(dentry->d_name.name, p->name, p->len))
+                       break;
+       }
+       if (p->name)
+               goto instantiate;
+
+       id = atovid(dentry->d_name.name, dentry->d_name.len);
+       if ((id < 0) || !xid_is_hashed(id))
+               goto out;
+
+instantiate:
+       error = proc_xid_instantiate(dir, dentry, id, p);
+out:
+       return error;
+}
+
+static struct file_operations proc_nid_file_operations = {
+       .read =         generic_read_dir,
+       .readdir =      proc_nid_readdir,
+};
+
+static struct inode_operations proc_nid_inode_operations = {
+       .lookup =       proc_nid_lookup,
+};
+
+static struct vs_entry nx_virtnet_stuff[] = {
+       INF("info",     S_IRUGO, virtnet_info),
+       INF("status",   S_IRUGO, virtnet_status),
+       DIR(NULL,       S_IRUGO | S_IXUGO, nid),
+};
+
+
+static struct dentry *proc_virtnet_lookup(struct inode *dir,
+       struct dentry *dentry, struct nameidata *nd)
+{
+       struct vs_entry *p = nx_virtnet_stuff;
+       struct dentry *error = ERR_PTR(-ENOENT);
+       int id = 0;
+
+       for (; p->name; p++) {
+               if (p->len != dentry->d_name.len)
+                       continue;
+               if (!memcmp(dentry->d_name.name, p->name, p->len))
+                       break;
+       }
+       if (p->name)
+               goto instantiate;
+
+       id = atovid(dentry->d_name.name, dentry->d_name.len);
+       if ((id < 0) || !nid_is_hashed(id))
+               goto out;
+
+instantiate:
+       error = proc_nid_instantiate(dir, dentry, id, p);
+out:
+       return error;
+}
+
+
+
+#define PROC_NUMBUF 10
+#define PROC_MAXVIDS 32
+
+int proc_virtual_readdir(struct file *filp,
+       void *dirent, filldir_t filldir)
+{
+       struct dentry *dentry = filp->f_dentry;
+       struct inode *inode = dentry->d_inode;
+       struct vs_entry *p = vx_virtual_stuff;
+       int size = sizeof(vx_virtual_stuff) / sizeof(struct vs_entry);
+       int pos, index;
+       unsigned int xid_array[PROC_MAXVIDS];
+       char buf[PROC_NUMBUF];
+       unsigned int nr_xids, i;
+       u64 ino;
+
+       pos = filp->f_pos;
+       switch (pos) {
+       case 0:
+               ino = inode->i_ino;
+               if (filldir(dirent, ".", 1, pos, ino, DT_DIR) < 0)
+                       goto out;
+               pos++;
+               /* fall through */
+       case 1:
+               ino = parent_ino(dentry);
+               if (filldir(dirent, "..", 2, pos, ino, DT_DIR) < 0)
+                       goto out;
+               pos++;
+               /* fall through */
+       default:
+               index = pos - 2;
+               if (index >= size)
+                       goto entries;
+               for (p += index; p->name; p++) {
+                       if (proc_fill_cache(filp, dirent, filldir, p->name, p->len,
+                               vs_proc_instantiate, 0, p))
+                               goto out;
+                       pos++;
+               }
+       entries:
+               index = pos - size;
+               p = &vx_virtual_stuff[size - 1];
+               nr_xids = get_xid_list(index, xid_array, PROC_MAXVIDS);
+               for (i = 0; i < nr_xids; i++) {
+                       int n, xid = xid_array[i];
+                       unsigned int j = PROC_NUMBUF;
+
+                       n = xid;
+                       do
+                               buf[--j] = '0' + (n % 10);
+                       while (n /= 10);
+
+                       if (proc_fill_cache(filp, dirent, filldir,
+                               buf + j, PROC_NUMBUF - j,
+                               vs_proc_instantiate, xid, p))
+                               goto out;
+                       pos++;
+               }
+       }
+out:
+       filp->f_pos = pos;
+       return 0;
+}
+
+static int proc_virtual_getattr(struct vfsmount *mnt,
+       struct dentry *dentry, struct kstat *stat)
+{
+       struct inode *inode = dentry->d_inode;
+
+       generic_fillattr(inode, stat);
+       stat->nlink = 2 + atomic_read(&vx_global_cactive);
+       return 0;
+}
+
+static struct file_operations proc_virtual_dir_operations = {
+       .read =         generic_read_dir,
+       .readdir =      proc_virtual_readdir,
+};
+
+static struct inode_operations proc_virtual_dir_inode_operations = {
+       .getattr =      proc_virtual_getattr,
+       .lookup =       proc_virtual_lookup,
+};
+
+
+
+
+
+int proc_virtnet_readdir(struct file *filp,
+       void *dirent, filldir_t filldir)
+{
+       struct dentry *dentry = filp->f_dentry;
+       struct inode *inode = dentry->d_inode;
+       struct vs_entry *p = nx_virtnet_stuff;
+       int size = sizeof(nx_virtnet_stuff) / sizeof(struct vs_entry);
+       int pos, index;
+       unsigned int nid_array[PROC_MAXVIDS];
+       char buf[PROC_NUMBUF];
+       unsigned int nr_nids, i;
+       u64 ino;
+
+       pos = filp->f_pos;
+       switch (pos) {
+       case 0:
+               ino = inode->i_ino;
+               if (filldir(dirent, ".", 1, pos, ino, DT_DIR) < 0)
+                       goto out;
+               pos++;
+               /* fall through */
+       case 1:
+               ino = parent_ino(dentry);
+               if (filldir(dirent, "..", 2, pos, ino, DT_DIR) < 0)
+                       goto out;
+               pos++;
+               /* fall through */
+       default:
+               index = pos - 2;
+               if (index >= size)
+                       goto entries;
+               for (p += index; p->name; p++) {
+                       if (proc_fill_cache(filp, dirent, filldir, p->name, p->len,
+                               vs_proc_instantiate, 0, p))
+                               goto out;
+                       pos++;
+               }
+       entries:
+               index = pos - size;
+               p = &nx_virtnet_stuff[size - 1];
+               nr_nids = get_nid_list(index, nid_array, PROC_MAXVIDS);
+               for (i = 0; i < nr_nids; i++) {
+                       int n, nid = nid_array[i];
+                       unsigned int j = PROC_NUMBUF;
+
+                       n = nid;
+                       do
+                               buf[--j] = '0' + (n % 10);
+                       while (n /= 10);
+
+                       if (proc_fill_cache(filp, dirent, filldir,
+                               buf + j, PROC_NUMBUF - j,
+                               vs_proc_instantiate, nid, p))
+                               goto out;
+                       pos++;
+               }
+       }
+out:
+       filp->f_pos = pos;
+       return 0;
+}
+
+static int proc_virtnet_getattr(struct vfsmount *mnt,
+       struct dentry *dentry, struct kstat *stat)
+{
+       struct inode *inode = dentry->d_inode;
+
+       generic_fillattr(inode, stat);
+       stat->nlink = 2 + atomic_read(&nx_global_cactive);
+       return 0;
+}
+
+static struct file_operations proc_virtnet_dir_operations = {
+       .read =         generic_read_dir,
+       .readdir =      proc_virtnet_readdir,
+};
+
+static struct inode_operations proc_virtnet_dir_inode_operations = {
+       .getattr =      proc_virtnet_getattr,
+       .lookup =       proc_virtnet_lookup,
+};
+
+
+
+void proc_vx_init(void)
+{
+       struct proc_dir_entry *ent;
+
+       ent = proc_mkdir("virtual", 0);
+       if (ent) {
+               ent->proc_fops = &proc_virtual_dir_operations;
+               ent->proc_iops = &proc_virtual_dir_inode_operations;
+       }
+       proc_virtual = ent;
+
+       ent = proc_mkdir("virtnet", 0);
+       if (ent) {
+               ent->proc_fops = &proc_virtnet_dir_operations;
+               ent->proc_iops = &proc_virtnet_dir_inode_operations;
+       }
+       proc_virtnet = ent;
+}
+
+
+
+
+/* per pid info */
+
+
+int proc_pid_vx_info(struct task_struct *p, char *buffer)
+{
+       struct vx_info *vxi;
+       char *orig = buffer;
+
+       buffer += sprintf(buffer, "XID:\t%d\n", vx_task_xid(p));
+
+       vxi = task_get_vx_info(p);
+       if (!vxi)
+               goto out;
+
+       buffer += sprintf(buffer, "BCaps:\t%016llx\n",
+               (unsigned long long)vxi->vx_bcaps);
+       buffer += sprintf(buffer, "CCaps:\t%016llx\n",
+               (unsigned long long)vxi->vx_ccaps);
+       buffer += sprintf(buffer, "CFlags:\t%016llx\n",
+               (unsigned long long)vxi->vx_flags);
+       buffer += sprintf(buffer, "CIPid:\t%d\n", vxi->vx_initpid);
+
+       put_vx_info(vxi);
+out:
+       return buffer - orig;
+}
+
+
+int proc_pid_nx_info(struct task_struct *p, char *buffer)
+{
+       struct nx_info *nxi;
+       struct nx_addr_v4 *v4a;
+#ifdef CONFIG_IPV6
+       struct nx_addr_v6 *v6a;
+#endif
+       char *orig = buffer;
+       int i;
+
+       buffer += sprintf(buffer, "NID:\t%d\n", nx_task_nid(p));
+
+       nxi = task_get_nx_info(p);
+       if (!nxi)
+               goto out;
+
+       buffer += sprintf(buffer, "NCaps:\t%016llx\n",
+               (unsigned long long)nxi->nx_ncaps);
+       buffer += sprintf(buffer, "NFlags:\t%016llx\n",
+               (unsigned long long)nxi->nx_flags);
+
+       buffer += sprintf(buffer,
+               "V4Root[bcast]:\t" NIPQUAD_FMT "\n",
+               NIPQUAD(nxi->v4_bcast.s_addr));
+       buffer += sprintf (buffer,
+               "V4Root[lback]:\t" NIPQUAD_FMT "\n",
+               NIPQUAD(nxi->v4_lback.s_addr));
+       if (!NX_IPV4(nxi))
+               goto skip_v4;
+       for (i = 0, v4a = &nxi->v4; v4a; i++, v4a = v4a->next)
+               buffer += sprintf(buffer, "V4Root[%d]:\t" NXAV4_FMT "\n",
+                       i, NXAV4(v4a));
+skip_v4:
+#ifdef CONFIG_IPV6
+       if (!NX_IPV6(nxi))
+               goto skip_v6;
+       for (i = 0, v6a = &nxi->v6; v6a; i++, v6a = v6a->next)
+               buffer += sprintf(buffer, "V6Root[%d]:\t" NXAV6_FMT "\n",
+                       i, NXAV6(v6a));
+skip_v6:
+#endif
+       put_nx_info(nxi);
+out:
+       return buffer - orig;
+}
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/sched.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/sched.c
--- linux-2.6.22.10/kernel/vserver/sched.c      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/sched.c   2007-08-15 23:32:49 +0200
@@ -0,0 +1,413 @@
+/*
+ *  linux/kernel/vserver/sched.c
+ *
+ *  Virtual Server: Scheduler Support
+ *
+ *  Copyright (C) 2004-2007  Herbert Pötzl
+ *
+ *  V0.01  adapted Sam Vilains version to 2.6.3
+ *  V0.02  removed legacy interface
+ *  V0.03  changed vcmds to vxi arg
+ *  V0.04  removed older and legacy interfaces
+ *
+ */
+
+#include <linux/vs_context.h>
+#include <linux/vs_sched.h>
+#include <linux/vserver/sched_cmd.h>
+
+#include <asm/uaccess.h>
+
+
+#define vxd_check_range(val, min, max) do {            \
+       vxlprintk((val < min) || (val > max),           \
+               "check_range(%ld,%ld,%ld)",             \
+               (long)val, (long)min, (long)max,        \
+               __FILE__, __LINE__);                    \
+       } while (0)
+
+
+void vx_update_sched_param(struct _vx_sched *sched,
+       struct _vx_sched_pc *sched_pc)
+{
+       unsigned int set_mask = sched->update_mask;
+
+       if (set_mask & VXSM_FILL_RATE)
+               sched_pc->fill_rate[0] = sched->fill_rate[0];
+       if (set_mask & VXSM_INTERVAL)
+               sched_pc->interval[0] = sched->interval[0];
+       if (set_mask & VXSM_FILL_RATE2)
+               sched_pc->fill_rate[1] = sched->fill_rate[1];
+       if (set_mask & VXSM_INTERVAL2)
+               sched_pc->interval[1] = sched->interval[1];
+       if (set_mask & VXSM_TOKENS)
+               sched_pc->tokens = sched->tokens;
+       if (set_mask & VXSM_TOKENS_MIN)
+               sched_pc->tokens_min = sched->tokens_min;
+       if (set_mask & VXSM_TOKENS_MAX)
+               sched_pc->tokens_max = sched->tokens_max;
+       if (set_mask & VXSM_PRIO_BIAS)
+               sched_pc->prio_bias = sched->prio_bias;
+
+       if (set_mask & VXSM_IDLE_TIME)
+               sched_pc->flags |= VXSF_IDLE_TIME;
+       else
+               sched_pc->flags &= ~VXSF_IDLE_TIME;
+
+       /* reset time */
+       sched_pc->norm_time = jiffies;
+}
+
+
+/*
+ * recalculate the context's scheduling tokens
+ *
+ * ret > 0 : number of tokens available
+ * ret < 0 : on hold, check delta_min[]
+ *          -1 only jiffies
+ *          -2 also idle time
+ *
+ */
+int vx_tokens_recalc(struct _vx_sched_pc *sched_pc,
+       unsigned long *norm_time, unsigned long *idle_time, int delta_min[2])
+{
+       long delta;
+       long tokens = 0;
+       int flags = sched_pc->flags;
+
+       /* how much time did pass? */
+       delta = *norm_time - sched_pc->norm_time;
+       vxd_check_range(delta, 0, INT_MAX);
+
+       if (delta >= sched_pc->interval[0]) {
+               long tokens, integral;
+
+               /* calc integral token part */
+               tokens = delta / sched_pc->interval[0];
+               integral = tokens * sched_pc->interval[0];
+               tokens *= sched_pc->fill_rate[0];
+#ifdef CONFIG_VSERVER_HARDCPU
+               delta_min[0] = delta - integral;
+               vxd_check_range(delta_min[0], 0, sched_pc->interval[0]);
+#endif
+               /* advance time */
+               sched_pc->norm_time += delta;
+
+               /* add tokens */
+               sched_pc->tokens += tokens;
+               sched_pc->token_time += tokens;
+       } else
+               delta_min[0] = delta;
+
+#ifdef CONFIG_VSERVER_IDLETIME
+       if (!(flags & VXSF_IDLE_TIME))
+               goto skip_idle;
+
+       /* how much was the idle skip? */
+       delta = *idle_time - sched_pc->idle_time;
+       vxd_check_range(delta, 0, INT_MAX);
+
+       if (delta >= sched_pc->interval[1]) {
+               long tokens, integral;
+
+               /* calc fair share token part */
+               tokens = delta / sched_pc->interval[1];
+               integral = tokens * sched_pc->interval[1];
+               tokens *= sched_pc->fill_rate[1];
+               delta_min[1] = delta - integral;
+               vxd_check_range(delta_min[1], 0, sched_pc->interval[1]);
+
+               /* advance idle time */
+               sched_pc->idle_time += integral;
+
+               /* add tokens */
+               sched_pc->tokens += tokens;
+               sched_pc->token_time += tokens;
+       } else
+               delta_min[1] = delta;
+skip_idle:
+#endif
+
+       /* clip at maximum */
+       if (sched_pc->tokens > sched_pc->tokens_max)
+               sched_pc->tokens = sched_pc->tokens_max;
+       tokens = sched_pc->tokens;
+
+       if ((flags & VXSF_ONHOLD)) {
+               /* can we unhold? */
+               if (tokens >= sched_pc->tokens_min) {
+                       flags &= ~VXSF_ONHOLD;
+                       sched_pc->hold_ticks +=
+                               *norm_time - sched_pc->onhold;
+               } else
+                       goto on_hold;
+       } else {
+               /* put on hold? */
+               if (tokens <= 0) {
+                       flags |= VXSF_ONHOLD;
+                       sched_pc->onhold = *norm_time;
+                       goto on_hold;
+               }
+       }
+       sched_pc->flags = flags;
+       return tokens;
+
+on_hold:
+       tokens = sched_pc->tokens_min - tokens;
+       sched_pc->flags = flags;
+       BUG_ON(tokens < 0);
+
+#ifdef CONFIG_VSERVER_HARDCPU
+       /* next interval? */
+       if (!sched_pc->fill_rate[0])
+               delta_min[0] = HZ;
+       else if (tokens > sched_pc->fill_rate[0])
+               delta_min[0] += sched_pc->interval[0] *
+                       tokens / sched_pc->fill_rate[0];
+       else
+               delta_min[0] = sched_pc->interval[0] - delta_min[0];
+       vxd_check_range(delta_min[0], 0, INT_MAX);
+
+#ifdef CONFIG_VSERVER_IDLETIME
+       if (!(flags & VXSF_IDLE_TIME))
+               return -1;
+
+       /* next interval? */
+       if (!sched_pc->fill_rate[1])
+               delta_min[1] = HZ;
+       else if (tokens > sched_pc->fill_rate[1])
+               delta_min[1] += sched_pc->interval[1] *
+                       tokens / sched_pc->fill_rate[1];
+       else
+               delta_min[1] = sched_pc->interval[1] - delta_min[1];
+       vxd_check_range(delta_min[1], 0, INT_MAX);
+
+       return -2;
+#else
+       return -1;
+#endif /* CONFIG_VSERVER_IDLETIME */
+#else
+       return 0;
+#endif /* CONFIG_VSERVER_HARDCPU */
+}
+
+static inline unsigned long msec_to_ticks(unsigned long msec)
+{
+       return msecs_to_jiffies(msec);
+}
+
+static inline unsigned long ticks_to_msec(unsigned long ticks)
+{
+       return jiffies_to_msecs(ticks);
+}
+
+static inline unsigned long ticks_to_usec(unsigned long ticks)
+{
+       return jiffies_to_usecs(ticks);
+}
+
+
+static int do_set_sched(struct vx_info *vxi, struct vcmd_sched_v5 *data)
+{
+       unsigned int set_mask = data->mask;
+       unsigned int update_mask;
+       int i, cpu;
+
+       /* Sanity check data values */
+       if (data->tokens_max <= 0)
+               data->tokens_max = HZ;
+       if (data->tokens_min < 0)
+               data->tokens_min = HZ / 3;
+       if (data->tokens_min >= data->tokens_max)
+               data->tokens_min = data->tokens_max;
+
+       if (data->prio_bias > MAX_PRIO_BIAS)
+               data->prio_bias = MAX_PRIO_BIAS;
+       if (data->prio_bias < MIN_PRIO_BIAS)
+               data->prio_bias = MIN_PRIO_BIAS;
+
+       spin_lock(&vxi->sched.tokens_lock);
+
+       /* sync up on delayed updates */
+       for_each_cpu_mask(cpu, vxi->sched.update)
+               vx_update_sched_param(&vxi->sched,
+                       &vx_per_cpu(vxi, sched_pc, cpu));
+
+       if (set_mask & VXSM_FILL_RATE)
+               vxi->sched.fill_rate[0] = data->fill_rate[0];
+       if (set_mask & VXSM_FILL_RATE2)
+               vxi->sched.fill_rate[1] = data->fill_rate[1];
+       if (set_mask & VXSM_INTERVAL)
+               vxi->sched.interval[0] = (set_mask & VXSM_MSEC) ?
+                       msec_to_ticks(data->interval[0]) : data->interval[0];
+       if (set_mask & VXSM_INTERVAL2)
+               vxi->sched.interval[1] = (set_mask & VXSM_MSEC) ?
+                       msec_to_ticks(data->interval[1]) : data->interval[1];
+       if (set_mask & VXSM_TOKENS)
+               vxi->sched.tokens = data->tokens;
+       if (set_mask & VXSM_TOKENS_MIN)
+               vxi->sched.tokens_min = data->tokens_min;
+       if (set_mask & VXSM_TOKENS_MAX)
+               vxi->sched.tokens_max = data->tokens_max;
+       if (set_mask & VXSM_PRIO_BIAS)
+               vxi->sched.prio_bias = data->prio_bias;
+
+       /* Sanity check rate/interval */
+       for (i = 0; i < 2; i++) {
+               if (data->fill_rate[i] < 0)
+                       data->fill_rate[i] = 0;
+               if (data->interval[i] <= 0)
+                       data->interval[i] = HZ;
+       }
+
+       update_mask = vxi->sched.update_mask & VXSM_SET_MASK;
+       update_mask |= (set_mask & (VXSM_SET_MASK | VXSM_IDLE_TIME));
+       vxi->sched.update_mask = update_mask;
+
+#ifdef CONFIG_SMP
+       rmb();
+       if (set_mask & VXSM_CPU_ID) {
+               vxi->sched.update = cpumask_of_cpu(data->cpu_id);
+               cpus_and(vxi->sched.update, cpu_online_map,
+                       vxi->sched.update);
+       } else
+               vxi->sched.update = cpu_online_map;
+
+       /* forced reload? */
+       if (set_mask & VXSM_FORCE) {
+               for_each_cpu_mask(cpu, vxi->sched.update)
+                       vx_update_sched_param(&vxi->sched,
+                               &vx_per_cpu(vxi, sched_pc, cpu));
+               vxi->sched.update = CPU_MASK_NONE;
+       }
+#else
+       /* on UP we update immediately */
+       vx_update_sched_param(&vxi->sched,
+               &vx_per_cpu(vxi, sched_pc, 0));
+#endif
+
+       spin_unlock(&vxi->sched.tokens_lock);
+       return 0;
+}
+
+
+#define COPY_IDS(C) C(cpu_id); C(bucket_id)
+#define COPY_PRI(C) C(prio_bias)
+#define COPY_TOK(C) C(tokens); C(tokens_min); C(tokens_max)
+#define COPY_FRI(C) C(fill_rate[0]); C(interval[0]);   \
+                   C(fill_rate[1]); C(interval[1]);
+
+#define COPY_VALUE(name) vc_data.name = data->name
+
+static int do_set_sched_v4(struct vx_info *vxi, struct vcmd_set_sched_v4 *data)
+{
+       struct vcmd_sched_v5 vc_data;
+
+       vc_data.mask = data->set_mask;
+       COPY_IDS(COPY_VALUE);
+       COPY_PRI(COPY_VALUE);
+       COPY_TOK(COPY_VALUE);
+       vc_data.fill_rate[0] = vc_data.fill_rate[1] = data->fill_rate;
+       vc_data.interval[0] = vc_data.interval[1] = data->interval;
+       return do_set_sched(vxi, &vc_data);
+}
+
+int vc_set_sched_v4(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_set_sched_v4 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_set_sched_v4(vxi, &vc_data);
+}
+
+       /* latest interface is v5 */
+
+int vc_set_sched(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_sched_v5 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return do_set_sched(vxi, &vc_data);
+}
+
+
+#define COPY_PRI(C) C(prio_bias)
+#define COPY_TOK(C) C(tokens); C(tokens_min); C(tokens_max)
+#define COPY_FRI(C) C(fill_rate[0]); C(interval[0]);    \
+                   C(fill_rate[1]); C(interval[1]);
+
+#define COPY_VALUE(name) vc_data.name = data->name
+
+
+int vc_get_sched(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_sched_v5 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       if (vc_data.mask & VXSM_CPU_ID) {
+               int cpu = vc_data.cpu_id;
+               struct _vx_sched_pc *data;
+
+               if (!cpu_possible(cpu))
+                       return -EINVAL;
+
+               data = &vx_per_cpu(vxi, sched_pc, cpu);
+               COPY_TOK(COPY_VALUE);
+               COPY_PRI(COPY_VALUE);
+               COPY_FRI(COPY_VALUE);
+
+               if (data->flags & VXSF_IDLE_TIME)
+                       vc_data.mask |= VXSM_IDLE_TIME;
+       } else {
+               struct _vx_sched *data = &vxi->sched;
+
+               COPY_TOK(COPY_VALUE);
+               COPY_PRI(COPY_VALUE);
+               COPY_FRI(COPY_VALUE);
+       }
+
+       if (vc_data.mask & VXSM_MSEC) {
+               vc_data.interval[0] = ticks_to_msec(vc_data.interval[0]);
+               vc_data.interval[1] = ticks_to_msec(vc_data.interval[1]);
+       }
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
+
+int vc_sched_info(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_sched_info vc_data;
+       int cpu;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       cpu = vc_data.cpu_id;
+       if (!cpu_possible(cpu))
+               return -EINVAL;
+
+       if (vxi) {
+               struct _vx_sched_pc *sched_pc =
+                       &vx_per_cpu(vxi, sched_pc, cpu);
+
+               vc_data.user_msec = ticks_to_msec(sched_pc->user_ticks);
+               vc_data.sys_msec = ticks_to_msec(sched_pc->sys_ticks);
+               vc_data.hold_msec = ticks_to_msec(sched_pc->hold_ticks);
+               vc_data.vavavoom = sched_pc->vavavoom;
+       }
+       vc_data.token_usec = ticks_to_usec(1);
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               return -EFAULT;
+       return 0;
+}
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/sched_init.h linux-2.6.22.10-vs2.3.0.29/kernel/vserver/sched_init.h
--- linux-2.6.22.10/kernel/vserver/sched_init.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/sched_init.h      2007-08-05 20:53:13 +0200
@@ -0,0 +1,50 @@
+
+static inline void vx_info_init_sched(struct _vx_sched *sched)
+{
+       static struct lock_class_key tokens_lock_key;
+
+       /* scheduling; hard code starting values as constants */
+       sched->fill_rate[0]     = 1;
+       sched->interval[0]      = 4;
+       sched->fill_rate[1]     = 1;
+       sched->interval[1]      = 8;
+       sched->tokens           = HZ >> 2;
+       sched->tokens_min       = HZ >> 4;
+       sched->tokens_max       = HZ >> 1;
+       sched->tokens_lock      = SPIN_LOCK_UNLOCKED;
+       sched->prio_bias        = 0;
+
+       lockdep_set_class(&sched->tokens_lock, &tokens_lock_key);
+}
+
+static inline
+void vx_info_init_sched_pc(struct _vx_sched_pc *sched_pc, int cpu)
+{
+       sched_pc->fill_rate[0]  = 1;
+       sched_pc->interval[0]   = 4;
+       sched_pc->fill_rate[1]  = 1;
+       sched_pc->interval[1]   = 8;
+       sched_pc->tokens        = HZ >> 2;
+       sched_pc->tokens_min    = HZ >> 4;
+       sched_pc->tokens_max    = HZ >> 1;
+       sched_pc->prio_bias     = 0;
+       sched_pc->vavavoom      = 0;
+       sched_pc->token_time    = 0;
+       sched_pc->idle_time     = 0;
+       sched_pc->norm_time     = jiffies;
+
+       sched_pc->user_ticks = 0;
+       sched_pc->sys_ticks = 0;
+       sched_pc->hold_ticks = 0;
+}
+
+static inline void vx_info_exit_sched(struct _vx_sched *sched)
+{
+       return;
+}
+
+static inline
+void vx_info_exit_sched_pc(struct _vx_sched_pc *sched_pc, int cpu)
+{
+       return;
+}
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/sched_proc.h linux-2.6.22.10-vs2.3.0.29/kernel/vserver/sched_proc.h
--- linux-2.6.22.10/kernel/vserver/sched_proc.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/sched_proc.h      2007-08-05 20:53:13 +0200
@@ -0,0 +1,57 @@
+#ifndef _VX_SCHED_PROC_H
+#define _VX_SCHED_PROC_H
+
+
+static inline
+int vx_info_proc_sched(struct _vx_sched *sched, char *buffer)
+{
+       int length = 0;
+
+       length += sprintf(buffer,
+               "FillRate:\t%8d,%d\n"
+               "Interval:\t%8d,%d\n"
+               "TokensMin:\t%8d\n"
+               "TokensMax:\t%8d\n"
+               "PrioBias:\t%8d\n",
+               sched->fill_rate[0],
+               sched->fill_rate[1],
+               sched->interval[0],
+               sched->interval[1],
+               sched->tokens_min,
+               sched->tokens_max,
+               sched->prio_bias);
+       return length;
+}
+
+static inline
+int vx_info_proc_sched_pc(struct _vx_sched_pc *sched_pc,
+       char *buffer, int cpu)
+{
+       int length = 0;
+
+       length += sprintf(buffer + length,
+               "cpu %d: %lld %lld %lld %ld %ld", cpu,
+               (unsigned long long)sched_pc->user_ticks,
+               (unsigned long long)sched_pc->sys_ticks,
+               (unsigned long long)sched_pc->hold_ticks,
+               sched_pc->token_time,
+               sched_pc->idle_time);
+       length += sprintf(buffer + length,
+               " %c%c %d %d %d %d/%d %d/%d",
+               (sched_pc->flags & VXSF_ONHOLD) ? 'H' : 'R',
+               (sched_pc->flags & VXSF_IDLE_TIME) ? 'I' : '-',
+               sched_pc->tokens,
+               sched_pc->tokens_min,
+               sched_pc->tokens_max,
+               sched_pc->fill_rate[0],
+               sched_pc->interval[0],
+               sched_pc->fill_rate[1],
+               sched_pc->interval[1]);
+       length += sprintf(buffer + length,
+               " %d %d\n",
+               sched_pc->prio_bias,
+               sched_pc->vavavoom);
+       return length;
+}
+
+#endif /* _VX_SCHED_PROC_H */
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/signal.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/signal.c
--- linux-2.6.22.10/kernel/vserver/signal.c     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/signal.c  2007-08-15 23:34:41 +0200
@@ -0,0 +1,131 @@
+/*
+ *  linux/kernel/vserver/signal.c
+ *
+ *  Virtual Server: Signal Support
+ *
+ *  Copyright (C) 2003-2007  Herbert Pötzl
+ *
+ *  V0.01  broken out from vcontext V0.05
+ *  V0.02  changed vcmds to vxi arg
+ *  V0.03  adjusted siginfo for kill
+ *
+ */
+
+#include <asm/uaccess.h>
+
+#include <linux/vs_context.h>
+#include <linux/vserver/signal_cmd.h>
+
+
+int vx_info_kill(struct vx_info *vxi, int pid, int sig)
+{
+       int retval, count = 0;
+       struct task_struct *p;
+       struct siginfo *sip = SEND_SIG_PRIV;
+
+       retval = -ESRCH;
+       vxdprintk(VXD_CBIT(misc, 4),
+               "vx_info_kill(%p[#%d],%d,%d)*",
+               vxi, vxi->vx_id, pid, sig);
+       read_lock(&tasklist_lock);
+       switch (pid) {
+       case  0:
+       case -1:
+               for_each_process(p) {
+                       int err = 0;
+
+                       if (vx_task_xid(p) != vxi->vx_id || p->pid <= 1 ||
+                               (pid && vxi->vx_initpid == p->pid))
+                               continue;
+
+                       err = group_send_sig_info(sig, sip, p);
+                       ++count;
+                       if (err != -EPERM)
+                               retval = err;
+               }
+               break;
+
+       case 1:
+               if (vxi->vx_initpid) {
+                       pid = vxi->vx_initpid;
+                       /* for now, only SIGINT to private init ... */
+                       if (!vx_info_flags(vxi, VXF_STATE_ADMIN, 0) &&
+                               /* ... as long as there are tasks left */
+                               (atomic_read(&vxi->vx_tasks) > 1))
+                               sig = SIGINT;
+               }
+               /* fallthrough */
+       default:
+               p = find_task_by_real_pid(pid);
+               if (p) {
+                       if (vx_task_xid(p) == vxi->vx_id)
+                               retval = group_send_sig_info(sig, sip, p);
+               }
+               break;
+       }
+       read_unlock(&tasklist_lock);
+       vxdprintk(VXD_CBIT(misc, 4),
+               "vx_info_kill(%p[#%d],%d,%d,%ld) = %d",
+               vxi, vxi->vx_id, pid, sig, (long)sip, retval);
+       return retval;
+}
+
+int vc_ctx_kill(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_ctx_kill_v0 vc_data;
+
+       if (copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       /* special check to allow guest shutdown */
+       if (!vx_info_flags(vxi, VXF_STATE_ADMIN, 0) &&
+               /* forbid killall pid=0 when init is present */
+               (((vc_data.pid < 1) && vxi->vx_initpid) ||
+               (vc_data.pid > 1)))
+               return -EACCES;
+
+       return vx_info_kill(vxi, vc_data.pid, vc_data.sig);
+}
+
+
+static int __wait_exit(struct vx_info *vxi)
+{
+       DECLARE_WAITQUEUE(wait, current);
+       int ret = 0;
+
+       add_wait_queue(&vxi->vx_wait, &wait);
+       set_current_state(TASK_INTERRUPTIBLE);
+
+wait:
+       if (vx_info_state(vxi,
+               VXS_SHUTDOWN | VXS_HASHED | VXS_HELPER) == VXS_SHUTDOWN)
+               goto out;
+       if (signal_pending(current)) {
+               ret = -ERESTARTSYS;
+               goto out;
+       }
+       schedule();
+       goto wait;
+
+out:
+       set_current_state(TASK_RUNNING);
+       remove_wait_queue(&vxi->vx_wait, &wait);
+       return ret;
+}
+
+
+
+int vc_wait_exit(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_wait_exit_v0 vc_data;
+       int ret;
+
+       ret = __wait_exit(vxi);
+       vc_data.reboot_cmd = vxi->reboot_cmd;
+       vc_data.exit_code = vxi->exit_code;
+
+       if (copy_to_user(data, &vc_data, sizeof(vc_data)))
+               ret = -EFAULT;
+       return ret;
+}
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/space.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/space.c
--- linux-2.6.22.10/kernel/vserver/space.c      1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/space.c   2007-08-15 23:39:13 +0200
@@ -0,0 +1,277 @@
+/*
+ *  linux/kernel/vserver/space.c
+ *
+ *  Virtual Server: Context Space Support
+ *
+ *  Copyright (C) 2003-2007  Herbert Pötzl
+ *
+ *  V0.01  broken out from context.c 0.07
+ *  V0.02  added task locking for namespace
+ *  V0.03  broken out vx_enter_namespace
+ *  V0.04  added *space support and commands
+ *
+ */
+
+#include <linux/utsname.h>
+#include <linux/nsproxy.h>
+#include <linux/err.h>
+#include <asm/uaccess.h>
+
+#include <linux/vs_context.h>
+#include <linux/vserver/space.h>
+#include <linux/vserver/space_cmd.h>
+
+
+atomic_t vs_global_nsproxy     = ATOMIC_INIT(0);
+atomic_t vs_global_fs          = ATOMIC_INIT(0);
+atomic_t vs_global_mnt_ns      = ATOMIC_INIT(0);
+atomic_t vs_global_uts_ns      = ATOMIC_INIT(0);
+atomic_t vs_global_ipc_ns      = ATOMIC_INIT(0);
+
+
+/* namespace functions */
+
+#include <linux/mnt_namespace.h>
+
+const struct vcmd_space_mask space_mask = {
+       .mask = CLONE_NEWNS |
+               CLONE_NEWUTS |
+               CLONE_NEWIPC |
+               CLONE_FS
+};
+
+
+/*
+ *     build a new nsproxy mix
+ *      assumes that both proxies are 'const'
+ *     does not touch nsproxy refcounts
+ *     will hold a reference on the result.
+ */
+
+struct nsproxy *vs_mix_nsproxy(struct nsproxy *old_nsproxy,
+       struct nsproxy *new_nsproxy, unsigned long mask)
+{
+       struct mnt_namespace *old_ns;
+       struct uts_namespace *old_uts;
+       struct ipc_namespace *old_ipc;
+       struct nsproxy *nsproxy;
+
+       nsproxy = copy_nsproxy(old_nsproxy);
+       if (!nsproxy)
+               goto out;
+
+       if (mask & CLONE_NEWNS) {
+               old_ns = nsproxy->mnt_ns;
+               nsproxy->mnt_ns = new_nsproxy->mnt_ns;
+               if (nsproxy->mnt_ns)
+                       get_mnt_ns(nsproxy->mnt_ns);
+       } else
+               old_ns = NULL;
+
+       if (mask & CLONE_NEWUTS) {
+               old_uts = nsproxy->uts_ns;
+               nsproxy->uts_ns = new_nsproxy->uts_ns;
+               if (nsproxy->uts_ns)
+                       get_uts_ns(nsproxy->uts_ns);
+       } else
+               old_uts = NULL;
+
+       if (mask & CLONE_NEWIPC) {
+               old_ipc = nsproxy->ipc_ns;
+               nsproxy->ipc_ns = new_nsproxy->ipc_ns;
+               if (nsproxy->ipc_ns)
+                       get_ipc_ns(nsproxy->ipc_ns);
+       } else
+               old_ipc = NULL;
+
+       if (old_ns)
+               put_mnt_ns(old_ns);
+       if (old_uts)
+               put_uts_ns(old_uts);
+       if (old_ipc)
+               put_ipc_ns(old_ipc);
+out:
+       return nsproxy;
+}
+
+
+/*
+ *     merge two nsproxy structs into a new one.
+ *     will hold a reference on the result.
+ */
+
+static inline
+struct nsproxy *__vs_merge_nsproxy(struct nsproxy *old,
+       struct nsproxy *proxy, unsigned long mask)
+{
+       struct nsproxy null_proxy = { .mnt_ns = NULL };
+
+       if (!proxy)
+               return NULL;
+
+       if (mask) {
+               /* vs_mix_nsproxy returns with reference */
+               return vs_mix_nsproxy(old ? old : &null_proxy,
+                       proxy, mask);
+       }
+       get_nsproxy(proxy);
+       return proxy;
+}
+
+/*
+ *     merge two fs structs into a new one.
+ *     will take a reference on the result.
+ */
+
+static inline
+struct fs_struct *__vs_merge_fs(struct fs_struct *old,
+       struct fs_struct *fs, unsigned long mask)
+{
+       if (!(mask & CLONE_FS)) {
+               if (old)
+                       atomic_inc(&old->count);
+               return old;
+       }
+
+       if (!fs)
+               return NULL;
+
+       return copy_fs_struct(fs);
+}
+
+
+int vx_enter_space(struct vx_info *vxi, unsigned long mask)
+{
+       struct nsproxy *proxy, *proxy_cur, *proxy_new;
+       struct fs_struct *fs, *fs_cur, *fs_new;
+       int ret;
+
+       if (vx_info_flags(vxi, VXF_INFO_PRIVATE, 0))
+               return -EACCES;
+
+       if (!mask)
+               mask = vxi->vx_nsmask;
+
+       if ((mask & vxi->vx_nsmask) != mask)
+               return -EINVAL;
+
+       proxy = vxi->vx_nsproxy;
+       fs = vxi->vx_fs;
+
+       task_lock(current);
+       fs_cur = current->fs;
+       atomic_inc(&fs_cur->count);
+       proxy_cur = current->nsproxy;
+       get_nsproxy(proxy_cur);
+       task_unlock(current);
+
+       fs_new = __vs_merge_fs(fs_cur, fs, mask);
+       if (IS_ERR(fs_new)) {
+               ret = PTR_ERR(fs_new);
+               goto out_put;
+       }
+
+       proxy_new = __vs_merge_nsproxy(proxy_cur, proxy, mask);
+       if (IS_ERR(proxy_new)) {
+               ret = PTR_ERR(proxy_new);
+               goto out_put_fs;
+       }
+
+       fs_new = xchg(&current->fs, fs_new);
+       proxy_new = xchg(&current->nsproxy, proxy_new);
+       ret = 0;
+
+       if (proxy_new)
+               put_nsproxy(proxy_new);
+out_put_fs:
+       if (fs_new)
+               put_fs_struct(fs_new);
+out_put:
+       if (proxy_cur)
+               put_nsproxy(proxy_cur);
+       if (fs_cur)
+               put_fs_struct(fs_cur);
+       return ret;
+}
+
+
+int vx_set_space(struct vx_info *vxi, unsigned long mask)
+{
+       struct nsproxy *proxy_vxi, *proxy_cur, *proxy_new;
+       struct fs_struct *fs_vxi, *fs_cur, *fs_new;
+       int ret;
+
+       if (!mask)
+               mask = space_mask.mask;
+
+       if ((mask & space_mask.mask) != mask)
+               return -EINVAL;
+
+       proxy_vxi = vxi->vx_nsproxy;
+       fs_vxi = vxi->vx_fs;
+
+       task_lock(current);
+       fs_cur = current->fs;
+       atomic_inc(&fs_cur->count);
+       proxy_cur = current->nsproxy;
+       get_nsproxy(proxy_cur);
+       task_unlock(current);
+
+       fs_new = __vs_merge_fs(fs_vxi, fs_cur, mask);
+       if (IS_ERR(fs_new)) {
+               ret = PTR_ERR(fs_new);
+               goto out_put;
+       }
+
+       proxy_new = __vs_merge_nsproxy(proxy_vxi, proxy_cur, mask);
+       if (IS_ERR(proxy_new)) {
+               ret = PTR_ERR(proxy_new);
+               goto out_put_fs;
+       }
+
+       fs_new = xchg(&vxi->vx_fs, fs_new);
+       proxy_new = xchg(&vxi->vx_nsproxy, proxy_new);
+       vxi->vx_nsmask |= mask;
+       ret = 0;
+
+       if (proxy_new)
+               put_nsproxy(proxy_new);
+out_put_fs:
+       if (fs_new)
+               put_fs_struct(fs_new);
+out_put:
+       if (proxy_cur)
+               put_nsproxy(proxy_cur);
+       if (fs_cur)
+               put_fs_struct(fs_cur);
+       return ret;
+}
+
+
+int vc_enter_space(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_space_mask vc_data = { .mask = 0 };
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return vx_enter_space(vxi, vc_data.mask);
+}
+
+int vc_set_space(struct vx_info *vxi, void __user *data)
+{
+       struct vcmd_space_mask vc_data = { .mask = 0 };
+
+       if (data && copy_from_user(&vc_data, data, sizeof(vc_data)))
+               return -EFAULT;
+
+       return vx_set_space(vxi, vc_data.mask);
+}
+
+int vc_get_space_mask(struct vx_info *vxi, void __user *data)
+{
+       if (copy_to_user(data, &space_mask, sizeof(space_mask)))
+               return -EFAULT;
+       return 0;
+}
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/switch.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/switch.c
--- linux-2.6.22.10/kernel/vserver/switch.c     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/switch.c  2007-10-25 17:05:55 +0200
@@ -0,0 +1,529 @@
+/*
+ *  linux/kernel/vserver/switch.c
+ *
+ *  Virtual Server: Syscall Switch
+ *
+ *  Copyright (C) 2003-2007  Herbert Pötzl
+ *
+ *  V0.01  syscall switch
+ *  V0.02  added signal to context
+ *  V0.03  added rlimit functions
+ *  V0.04  added iattr, task/xid functions
+ *  V0.05  added debug/history stuff
+ *  V0.06  added compat32 layer
+ *  V0.07  vcmd args and perms
+ *  V0.08  added status commands
+ *  V0.09  added tag commands
+ *  V0.10  added oom bias
+ *  V0.11  added device commands
+ *
+ */
+
+#include <linux/vs_context.h>
+#include <linux/vs_network.h>
+#include <linux/vserver/switch.h>
+
+#include "vci_config.h"
+
+
+static inline
+int vc_get_version(uint32_t id)
+{
+       return VCI_VERSION;
+}
+
+static inline
+int vc_get_vci(uint32_t id)
+{
+       return vci_kernel_config();
+}
+
+#include <linux/vserver/context_cmd.h>
+#include <linux/vserver/cvirt_cmd.h>
+#include <linux/vserver/cacct_cmd.h>
+#include <linux/vserver/limit_cmd.h>
+#include <linux/vserver/network_cmd.h>
+#include <linux/vserver/sched_cmd.h>
+#include <linux/vserver/debug_cmd.h>
+#include <linux/vserver/inode_cmd.h>
+#include <linux/vserver/dlimit_cmd.h>
+#include <linux/vserver/signal_cmd.h>
+#include <linux/vserver/space_cmd.h>
+#include <linux/vserver/tag_cmd.h>
+#include <linux/vserver/device_cmd.h>
+
+#include <linux/vserver/inode.h>
+#include <linux/vserver/dlimit.h>
+
+
+#ifdef CONFIG_COMPAT
+#define __COMPAT(name, id, data, compat)       \
+       (compat) ? name ## _x32(id, data) : name(id, data)
+#define __COMPAT_NO_ID(name, data, compat)     \
+       (compat) ? name ## _x32(data) : name(data)
+#else
+#define __COMPAT(name, id, data, compat)       \
+       name(id, data)
+#define __COMPAT_NO_ID(name, data, compat)     \
+       name(data)
+#endif
+
+
+static inline
+long do_vcmd(uint32_t cmd, uint32_t id,
+       struct vx_info *vxi, struct nx_info *nxi,
+       void __user *data, int compat)
+{
+       switch (cmd) {
+
+       case VCMD_get_version:
+               return vc_get_version(id);
+       case VCMD_get_vci:
+               return vc_get_vci(id);
+
+       case VCMD_task_xid:
+               return vc_task_xid(id);
+       case VCMD_vx_info:
+               return vc_vx_info(vxi, data);
+
+       case VCMD_task_nid:
+               return vc_task_nid(id);
+       case VCMD_nx_info:
+               return vc_nx_info(nxi, data);
+
+       case VCMD_task_tag:
+               return vc_task_tag(id);
+
+       /* this is version 1 */
+       case VCMD_set_space:
+               return vc_set_space(vxi, data);
+
+       case VCMD_get_space_mask:
+               return vc_get_space_mask(vxi, data);
+
+#ifdef CONFIG_IA32_EMULATION
+       case VCMD_get_rlimit:
+               return __COMPAT(vc_get_rlimit, vxi, data, compat);
+       case VCMD_set_rlimit:
+               return __COMPAT(vc_set_rlimit, vxi, data, compat);
+#else
+       case VCMD_get_rlimit:
+               return vc_get_rlimit(vxi, data);
+       case VCMD_set_rlimit:
+               return vc_set_rlimit(vxi, data);
+#endif
+       case VCMD_get_rlimit_mask:
+               return vc_get_rlimit_mask(id, data);
+       case VCMD_reset_minmax:
+               return vc_reset_minmax(vxi, data);
+
+       case VCMD_get_vhi_name:
+               return vc_get_vhi_name(vxi, data);
+       case VCMD_set_vhi_name:
+               return vc_set_vhi_name(vxi, data);
+
+       case VCMD_ctx_stat:
+               return vc_ctx_stat(vxi, data);
+       case VCMD_virt_stat:
+               return vc_virt_stat(vxi, data);
+       case VCMD_sock_stat:
+               return vc_sock_stat(vxi, data);
+       case VCMD_rlimit_stat:
+               return vc_rlimit_stat(vxi, data);
+
+       case VCMD_set_cflags:
+               return vc_set_cflags(vxi, data);
+       case VCMD_get_cflags:
+               return vc_get_cflags(vxi, data);
+
+       /* this is version 1 */
+       case VCMD_set_ccaps:
+               return vc_set_ccaps(vxi, data);
+       /* this is version 1 */
+       case VCMD_get_ccaps:
+               return vc_get_ccaps(vxi, data);
+       case VCMD_set_bcaps:
+               return vc_set_bcaps(vxi, data);
+       case VCMD_get_bcaps:
+               return vc_get_bcaps(vxi, data);
+
+       case VCMD_set_badness:
+               return vc_set_badness(vxi, data);
+       case VCMD_get_badness:
+               return vc_get_badness(vxi, data);
+
+       case VCMD_set_nflags:
+               return vc_set_nflags(nxi, data);
+       case VCMD_get_nflags:
+               return vc_get_nflags(nxi, data);
+
+       case VCMD_set_ncaps:
+               return vc_set_ncaps(nxi, data);
+       case VCMD_get_ncaps:
+               return vc_get_ncaps(nxi, data);
+
+       case VCMD_set_sched_v4:
+               return vc_set_sched_v4(vxi, data);
+       /* this is version 5 */
+       case VCMD_set_sched:
+               return vc_set_sched(vxi, data);
+       case VCMD_get_sched:
+               return vc_get_sched(vxi, data);
+       case VCMD_sched_info:
+               return vc_sched_info(vxi, data);
+
+       case VCMD_add_dlimit:
+               return __COMPAT(vc_add_dlimit, id, data, compat);
+       case VCMD_rem_dlimit:
+               return __COMPAT(vc_rem_dlimit, id, data, compat);
+       case VCMD_set_dlimit:
+               return __COMPAT(vc_set_dlimit, id, data, compat);
+       case VCMD_get_dlimit:
+               return __COMPAT(vc_get_dlimit, id, data, compat);
+
+       case VCMD_ctx_kill:
+               return vc_ctx_kill(vxi, data);
+
+       case VCMD_wait_exit:
+               return vc_wait_exit(vxi, data);
+
+       case VCMD_get_iattr:
+               return __COMPAT_NO_ID(vc_get_iattr, data, compat);
+       case VCMD_set_iattr:
+               return __COMPAT_NO_ID(vc_set_iattr, data, compat);
+
+       case VCMD_fget_iattr:
+               return vc_fget_iattr(id, data);
+       case VCMD_fset_iattr:
+               return vc_fset_iattr(id, data);
+
+       case VCMD_enter_space_v0:
+               return vc_enter_space(vxi, NULL);
+       /* this is version 1 */
+       case VCMD_enter_space:
+               return vc_enter_space(vxi, data);
+
+       case VCMD_ctx_create_v0:
+               return vc_ctx_create(id, NULL);
+       case VCMD_ctx_create:
+               return vc_ctx_create(id, data);
+       case VCMD_ctx_migrate_v0:
+               return vc_ctx_migrate(vxi, NULL);
+       case VCMD_ctx_migrate:
+               return vc_ctx_migrate(vxi, data);
+
+       case VCMD_net_create_v0:
+               return vc_net_create(id, NULL);
+       case VCMD_net_create:
+               return vc_net_create(id, data);
+       case VCMD_net_migrate:
+               return vc_net_migrate(nxi, data);
+
+       case VCMD_tag_migrate:
+               return vc_tag_migrate(id);
+
+       case VCMD_net_add:
+               return vc_net_add(nxi, data);
+       case VCMD_net_remove:
+               return vc_net_remove(nxi, data);
+
+       case VCMD_net_add_ipv4:
+               return vc_net_add_ipv4(nxi, data);
+       case VCMD_net_remove_ipv4:
+               return vc_net_remove_ipv4(nxi, data);
+#ifdef CONFIG_IPV6
+       case VCMD_net_add_ipv6:
+               return vc_net_add_ipv6(nxi, data);
+       case VCMD_net_remove_ipv6:
+               return vc_net_remove_ipv6(nxi, data);
+#endif
+/*     case VCMD_add_match_ipv4:
+               return vc_add_match_ipv4(nxi, data);
+       case VCMD_get_match_ipv4:
+               return vc_get_match_ipv4(nxi, data);
+#ifdef CONFIG_IPV6
+       case VCMD_add_match_ipv6:
+               return vc_add_match_ipv6(nxi, data);
+       case VCMD_get_match_ipv6:
+               return vc_get_match_ipv6(nxi, data);
+#endif */
+
+#ifdef CONFIG_VSERVER_DEVICE
+       case VCMD_set_mapping:
+               return __COMPAT(vc_set_mapping, vxi, data, compat);
+       case VCMD_unset_mapping:
+               return __COMPAT(vc_unset_mapping, vxi, data, compat);
+#endif
+#ifdef CONFIG_VSERVER_HISTORY
+       case VCMD_dump_history:
+               return vc_dump_history(id);
+       case VCMD_read_history:
+               return __COMPAT(vc_read_history, id, data, compat);
+#endif
+#ifdef CONFIG_VSERVER_MONITOR
+       case VCMD_read_monitor:
+               return __COMPAT(vc_read_monitor, id, data, compat);
+#endif
+       default:
+               vxwprintk_task(1, "unimplemented VCMD_%02d_%d[%d]",
+                       VC_CATEGORY(cmd), VC_COMMAND(cmd), VC_VERSION(cmd));
+       }
+       return -ENOSYS;
+}
+
+
+#define        __VCMD(vcmd, _perm, _args, _flags)              \
+       case VCMD_ ## vcmd: perm = _perm;               \
+               args = _args; flags = _flags; break
+
+
+#define VCA_NONE       0x00
+#define VCA_VXI                0x01
+#define VCA_NXI                0x02
+
+#define VCF_NONE       0x00
+#define VCF_INFO       0x01
+#define VCF_ADMIN      0x02
+#define VCF_ARES       0x06    /* includes admin */
+#define VCF_SETUP      0x08
+
+#define VCF_ZIDOK      0x10    /* zero id okay */
+
+
+static inline
+long do_vserver(uint32_t cmd, uint32_t id, void __user *data, int compat)
+{
+       long ret;
+       int permit = -1, state = 0;
+       int perm = -1, args = 0, flags = 0;
+       struct vx_info *vxi = NULL;
+       struct nx_info *nxi = NULL;
+
+       switch (cmd) {
+       /* unpriviledged commands */
+       __VCMD(get_version,      0, VCA_NONE,   0);
+       __VCMD(get_vci,          0, VCA_NONE,   0);
+       __VCMD(get_rlimit_mask,  0, VCA_NONE,   0);
+       __VCMD(get_space_mask,   0, VCA_NONE,   0);
+
+       /* info commands */
+       __VCMD(task_xid,         2, VCA_NONE,   0);
+       __VCMD(reset_minmax,     2, VCA_VXI,    0);
+       __VCMD(vx_info,          3, VCA_VXI,    VCF_INFO);
+       __VCMD(get_bcaps,        3, VCA_VXI,    VCF_INFO);
+       __VCMD(get_ccaps,        3, VCA_VXI,    VCF_INFO);
+       __VCMD(get_cflags,       3, VCA_VXI,    VCF_INFO);
+       __VCMD(get_badness,      3, VCA_VXI,    VCF_INFO);
+       __VCMD(get_vhi_name,     3, VCA_VXI,    VCF_INFO);
+       __VCMD(get_rlimit,       3, VCA_VXI,    VCF_INFO);
+
+       __VCMD(ctx_stat,         3, VCA_VXI,    VCF_INFO);
+       __VCMD(virt_stat,        3, VCA_VXI,    VCF_INFO);
+       __VCMD(sock_stat,        3, VCA_VXI,    VCF_INFO);
+       __VCMD(rlimit_stat,      3, VCA_VXI,    VCF_INFO);
+
+       __VCMD(task_nid,         2, VCA_NONE,   0);
+       __VCMD(nx_info,          3, VCA_NXI,    VCF_INFO);
+       __VCMD(get_ncaps,        3, VCA_NXI,    VCF_INFO);
+       __VCMD(get_nflags,       3, VCA_NXI,    VCF_INFO);
+
+       __VCMD(task_tag,         2, VCA_NONE,   0);
+
+       __VCMD(get_iattr,        2, VCA_NONE,   0);
+       __VCMD(fget_iattr,       2, VCA_NONE,   0);
+       __VCMD(get_dlimit,       3, VCA_NONE,   VCF_INFO);
+       __VCMD(get_sched,        3, VCA_VXI,    VCF_INFO);
+       __VCMD(sched_info,       3, VCA_VXI,    VCF_INFO | VCF_ZIDOK);
+
+       /* lower admin commands */
+       __VCMD(wait_exit,        4, VCA_VXI,    VCF_INFO);
+       __VCMD(ctx_create_v0,    5, VCA_NONE,   0);
+       __VCMD(ctx_create,       5, VCA_NONE,   0);
+       __VCMD(ctx_migrate_v0,   5, VCA_VXI,    VCF_ADMIN);
+       __VCMD(ctx_migrate,      5, VCA_VXI,    VCF_ADMIN);
+       __VCMD(enter_space_v0,   5, VCA_VXI,    VCF_ADMIN);
+       __VCMD(enter_space,      5, VCA_VXI,    VCF_ADMIN);
+
+       __VCMD(net_create_v0,    5, VCA_NONE,   0);
+       __VCMD(net_create,       5, VCA_NONE,   0);
+       __VCMD(net_migrate,      5, VCA_NXI,    VCF_ADMIN);
+
+       __VCMD(tag_migrate,      5, VCA_NONE,   VCF_ADMIN);
+
+       /* higher admin commands */
+       __VCMD(ctx_kill,         6, VCA_VXI,    VCF_ARES);
+       __VCMD(set_space,        7, VCA_VXI,    VCF_ARES | VCF_SETUP);
+
+       __VCMD(set_ccaps,        7, VCA_VXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(set_bcaps,        7, VCA_VXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(set_cflags,       7, VCA_VXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(set_badness,      7, VCA_VXI,    VCF_ARES | VCF_SETUP);
+
+       __VCMD(set_vhi_name,     7, VCA_VXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(set_rlimit,       7, VCA_VXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(set_sched,        7, VCA_VXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(set_sched_v4,     7, VCA_VXI,    VCF_ARES | VCF_SETUP);
+
+       __VCMD(set_ncaps,        7, VCA_NXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(set_nflags,       7, VCA_NXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(net_add,          8, VCA_NXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(net_remove,       8, VCA_NXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(net_add_ipv4,     8, VCA_NXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(net_remove_ipv4,  8, VCA_NXI,    VCF_ARES | VCF_SETUP);
+#ifdef CONFIG_IPV6
+       __VCMD(net_add_ipv6,     8, VCA_NXI,    VCF_ARES | VCF_SETUP);
+       __VCMD(net_remove_ipv6,  8, VCA_NXI,    VCF_ARES | VCF_SETUP);
+#endif
+       __VCMD(set_iattr,        7, VCA_NONE,   0);
+       __VCMD(fset_iattr,       7, VCA_NONE,   0);
+       __VCMD(set_dlimit,       7, VCA_NONE,   VCF_ARES);
+       __VCMD(add_dlimit,       8, VCA_NONE,   VCF_ARES);
+       __VCMD(rem_dlimit,       8, VCA_NONE,   VCF_ARES);
+
+#ifdef CONFIG_VSERVER_DEVICE
+       __VCMD(set_mapping,      8, VCA_VXI,    VCF_ARES|VCF_ZIDOK);
+       __VCMD(unset_mapping,    8, VCA_VXI,    VCF_ARES|VCF_ZIDOK);
+#endif
+       /* debug level admin commands */
+#ifdef CONFIG_VSERVER_HISTORY
+       __VCMD(dump_history,     9, VCA_NONE,   0);
+       __VCMD(read_history,     9, VCA_NONE,   0);
+#endif
+#ifdef CONFIG_VSERVER_MONITOR
+       __VCMD(read_monitor,     9, VCA_NONE,   0);
+#endif
+
+       default:
+               perm = -1;
+       }
+
+       vxdprintk(VXD_CBIT(switch, 0),
+               "vc: VCMD_%02d_%d[%d], %d,%p [%d,%d,%x,%x]",
+               VC_CATEGORY(cmd), VC_COMMAND(cmd),
+               VC_VERSION(cmd), id, data, compat,
+               perm, args, flags);
+
+       ret = -ENOSYS;
+       if (perm < 0)
+               goto out;
+
+       state = 1;
+       if (!capable(CAP_CONTEXT))
+               goto out;
+
+       state = 2;
+       /* moved here from the individual commands */
+       ret = -EPERM;
+       if ((perm > 1) && !capable(CAP_SYS_ADMIN))
+               goto out;
+
+       state = 3;
+       /* vcmd involves resource management  */
+       ret = -EPERM;
+       if ((flags & VCF_ARES) && !capable(CAP_SYS_RESOURCE))
+               goto out;
+
+       state = 4;
+       /* various legacy exceptions */
+       switch (cmd) {
+       /* will go away when spectator is a cap */
+       case VCMD_ctx_migrate_v0:
+       case VCMD_ctx_migrate:
+               if (id == 1) {
+                       current->xid = 1;
+                       ret = 1;
+                       goto out;
+               }
+               break;
+
+       /* will go away when spectator is a cap */
+       case VCMD_net_migrate:
+               if (id == 1) {
+                       current->nid = 1;
+                       ret = 1;
+                       goto out;
+               }
+               break;
+       }
+
+       /* vcmds are fine by default */
+       permit = 1;
+
+       /* admin type vcmds require admin ... */
+       if (flags & VCF_ADMIN)
+               permit = vx_check(0, VS_ADMIN) ? 1 : 0;
+
+       /* ... but setup type vcmds override that */
+       if (!permit && (flags & VCF_SETUP))
+               permit = vx_flags(VXF_STATE_SETUP, 0) ? 2 : 0;
+
+       state = 5;
+       ret = -EPERM;
+       if (!permit)
+               goto out;
+
+       state = 6;
+       if (!id && (flags & VCF_ZIDOK))
+               goto skip_id;
+
+       ret = -ESRCH;
+       if (args & VCA_VXI) {
+               vxi = lookup_vx_info(id);
+               if (!vxi)
+                       goto out;
+
+               if ((flags & VCF_ADMIN) &&
+                       /* special case kill for shutdown */
+                       (cmd != VCMD_ctx_kill) &&
+                       /* can context be administrated? */
+                       !vx_info_flags(vxi, VXF_STATE_ADMIN, 0)) {
+                       ret = -EACCES;
+                       goto out_vxi;
+               }
+       }
+       state = 7;
+       if (args & VCA_NXI) {
+               nxi = lookup_nx_info(id);
+               if (!nxi)
+                       goto out_vxi;
+
+               if ((flags & VCF_ADMIN) &&
+                       /* can context be administrated? */
+                       !nx_info_flags(nxi, NXF_STATE_ADMIN, 0)) {
+                       ret = -EACCES;
+                       goto out_nxi;
+               }
+       }
+skip_id:
+       state = 8;
+       ret = do_vcmd(cmd, id, vxi, nxi, data, compat);
+
+out_nxi:
+       if ((args & VCA_NXI) && nxi)
+               put_nx_info(nxi);
+out_vxi:
+       if ((args & VCA_VXI) && vxi)
+               put_vx_info(vxi);
+out:
+       vxdprintk(VXD_CBIT(switch, 1),
+               "vc: VCMD_%02d_%d[%d] = %08lx(%ld) [%d,%d]",
+               VC_CATEGORY(cmd), VC_COMMAND(cmd),
+               VC_VERSION(cmd), ret, ret, state, permit);
+       return ret;
+}
+
+asmlinkage long
+sys_vserver(uint32_t cmd, uint32_t id, void __user *data)
+{
+       return do_vserver(cmd, id, data, 0);
+}
+
+#ifdef CONFIG_COMPAT
+
+asmlinkage long
+sys32_vserver(uint32_t cmd, uint32_t id, void __user *data)
+{
+       return do_vserver(cmd, id, data, 1);
+}
+
+#endif /* CONFIG_COMPAT */
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/sysctl.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/sysctl.c
--- linux-2.6.22.10/kernel/vserver/sysctl.c     1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/sysctl.c  2007-08-15 23:42:57 +0200
@@ -0,0 +1,243 @@
+/*
+ *  kernel/vserver/sysctl.c
+ *
+ *  Virtual Context Support
+ *
+ *  Copyright (C) 2004-2007  Herbert Pötzl
+ *
+ *  V0.01  basic structure
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/ctype.h>
+#include <linux/sysctl.h>
+#include <linux/parser.h>
+#include <asm/uaccess.h>
+
+
+#define CTL_VSERVER    4242    /* unused? */
+
+enum {
+       CTL_DEBUG_ERROR         = 0,
+       CTL_DEBUG_SWITCH        = 1,
+       CTL_DEBUG_XID,
+       CTL_DEBUG_NID,
+       CTL_DEBUG_TAG,
+       CTL_DEBUG_NET,
+       CTL_DEBUG_LIMIT,
+       CTL_DEBUG_CRES,
+       CTL_DEBUG_DLIM,
+       CTL_DEBUG_QUOTA,
+       CTL_DEBUG_CVIRT,
+       CTL_DEBUG_SPACE,
+       CTL_DEBUG_MISC,
+};
+
+
+unsigned int vx_debug_switch   = 0;
+unsigned int vx_debug_xid      = 0;
+unsigned int vx_debug_nid      = 0;
+unsigned int vx_debug_tag      = 0;
+unsigned int vx_debug_net      = 0;
+unsigned int vx_debug_limit    = 0;
+unsigned int vx_debug_cres     = 0;
+unsigned int vx_debug_dlim     = 0;
+unsigned int vx_debug_quota    = 0;
+unsigned int vx_debug_cvirt    = 0;
+unsigned int vx_debug_space    = 0;
+unsigned int vx_debug_misc     = 0;
+
+
+static struct ctl_table_header *vserver_table_header;
+static ctl_table vserver_table[];
+
+
+void vserver_register_sysctl(void)
+{
+       if (!vserver_table_header) {
+               vserver_table_header = register_sysctl_table(vserver_table);
+       }
+
+}
+
+void vserver_unregister_sysctl(void)
+{
+       if (vserver_table_header) {
+               unregister_sysctl_table(vserver_table_header);
+               vserver_table_header = NULL;
+       }
+}
+
+
+static int proc_dodebug(ctl_table *table, int write,
+       struct file *filp, void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+       char            tmpbuf[20], *p, c;
+       unsigned int    value;
+       size_t          left, len;
+
+       if ((*ppos && !write) || !*lenp) {
+               *lenp = 0;
+               return 0;
+       }
+
+       left = *lenp;
+
+       if (write) {
+               if (!access_ok(VERIFY_READ, buffer, left))
+                       return -EFAULT;
+               p = (char *)buffer;
+               while (left && __get_user(c, p) >= 0 && isspace(c))
+                       left--, p++;
+               if (!left)
+                       goto done;
+
+               if (left > sizeof(tmpbuf) - 1)
+                       return -EINVAL;
+               if (copy_from_user(tmpbuf, p, left))
+                       return -EFAULT;
+               tmpbuf[left] = '\0';
+
+               for (p = tmpbuf, value = 0; '0' <= *p && *p <= '9'; p++, left--)
+                       value = 10 * value + (*p - '0');
+               if (*p && !isspace(*p))
+                       return -EINVAL;
+               while (left && isspace(*p))
+                       left--, p++;
+               *(unsigned int *)table->data = value;
+       } else {
+               if (!access_ok(VERIFY_WRITE, buffer, left))
+                       return -EFAULT;
+               len = sprintf(tmpbuf, "%d", *(unsigned int *)table->data);
+               if (len > left)
+                       len = left;
+               if (__copy_to_user(buffer, tmpbuf, len))
+                       return -EFAULT;
+               if ((left -= len) > 0) {
+                       if (put_user('\n', (char *)buffer + len))
+                               return -EFAULT;
+                       left--;
+               }
+       }
+
+done:
+       *lenp -= left;
+       *ppos += *lenp;
+       return 0;
+}
+
+
+#define        CTL_ENTRY(ctl, name)                            \
+       {                                               \
+               .ctl_name       = ctl,                  \
+               .procname       = #name,                \
+               .data           = &vx_ ## name,         \
+               .maxlen         = sizeof(int),          \
+               .mode           = 0644,                 \
+               .proc_handler   = &proc_dodebug         \
+       }
+
+static ctl_table debug_table[] = {
+       CTL_ENTRY(CTL_DEBUG_SWITCH,     debug_switch),
+       CTL_ENTRY(CTL_DEBUG_XID,        debug_xid),
+       CTL_ENTRY(CTL_DEBUG_NID,        debug_nid),
+       CTL_ENTRY(CTL_DEBUG_TAG,        debug_tag),
+       CTL_ENTRY(CTL_DEBUG_NET,        debug_net),
+       CTL_ENTRY(CTL_DEBUG_LIMIT,      debug_limit),
+       CTL_ENTRY(CTL_DEBUG_CRES,       debug_cres),
+       CTL_ENTRY(CTL_DEBUG_DLIM,       debug_dlim),
+       CTL_ENTRY(CTL_DEBUG_QUOTA,      debug_quota),
+       CTL_ENTRY(CTL_DEBUG_CVIRT,      debug_cvirt),
+       CTL_ENTRY(CTL_DEBUG_SPACE,      debug_space),
+       CTL_ENTRY(CTL_DEBUG_MISC,       debug_misc),
+       { .ctl_name = 0 }
+};
+
+static ctl_table vserver_table[] = {
+       {
+               .ctl_name       = CTL_VSERVER,
+               .procname       = "vserver",
+               .mode           = 0555,
+               .child          = debug_table
+       },
+       { .ctl_name = 0 }
+};
+
+
+static match_table_t tokens = {
+       { CTL_DEBUG_SWITCH,     "switch=%x"     },
+       { CTL_DEBUG_XID,        "xid=%x"        },
+       { CTL_DEBUG_NID,        "nid=%x"        },
+       { CTL_DEBUG_TAG,        "tag=%x"        },
+       { CTL_DEBUG_NET,        "net=%x"        },
+       { CTL_DEBUG_LIMIT,      "limit=%x"      },
+       { CTL_DEBUG_CRES,       "cres=%x"       },
+       { CTL_DEBUG_DLIM,       "dlim=%x"       },
+       { CTL_DEBUG_QUOTA,      "quota=%x"      },
+       { CTL_DEBUG_CVIRT,      "cvirt=%x"      },
+       { CTL_DEBUG_SPACE,      "space=%x"      },
+       { CTL_DEBUG_MISC,       "misc=%x"       },
+       { CTL_DEBUG_ERROR,      NULL            }
+};
+
+#define        HANDLE_CASE(id, name, val)                              \
+       case CTL_DEBUG_ ## id:                                  \
+               vx_debug_ ## name = val;                        \
+               printk("vs_debug_" #name "=0x%x\n", val);       \
+               break
+
+
+static int __init vs_debug_setup(char *str)
+{
+       char *p;
+       int token;
+
+       printk("vs_debug_setup(%s)\n", str);
+       while ((p = strsep(&str, ",")) != NULL) {
+               substring_t args[MAX_OPT_ARGS];
+               unsigned int value;
+
+               if (!*p)
+                       continue;
+
+               token = match_token(p, tokens, args);
+               value = (token > 0) ? simple_strtoul(args[0].from, NULL, 0) : 0;
+
+               switch (token) {
+               HANDLE_CASE(SWITCH, switch, value);
+               HANDLE_CASE(XID,    xid,    value);
+               HANDLE_CASE(NID,    nid,    value);
+               HANDLE_CASE(TAG,    tag,    value);
+               HANDLE_CASE(NET,    net,    value);
+               HANDLE_CASE(LIMIT,  limit,  value);
+               HANDLE_CASE(CRES,   cres,   value);
+               HANDLE_CASE(DLIM,   dlim,   value);
+               HANDLE_CASE(QUOTA,  quota,  value);
+               HANDLE_CASE(CVIRT,  cvirt,  value);
+               HANDLE_CASE(SPACE,  space,  value);
+               HANDLE_CASE(MISC,   misc,   value);
+               default:
+                       return -EINVAL;
+                       break;
+               }
+       }
+       return 1;
+}
+
+__setup("vsdebug=", vs_debug_setup);
+
+
+
+EXPORT_SYMBOL_GPL(vx_debug_switch);
+EXPORT_SYMBOL_GPL(vx_debug_xid);
+EXPORT_SYMBOL_GPL(vx_debug_nid);
+EXPORT_SYMBOL_GPL(vx_debug_net);
+EXPORT_SYMBOL_GPL(vx_debug_limit);
+EXPORT_SYMBOL_GPL(vx_debug_cres);
+EXPORT_SYMBOL_GPL(vx_debug_dlim);
+EXPORT_SYMBOL_GPL(vx_debug_quota);
+EXPORT_SYMBOL_GPL(vx_debug_cvirt);
+EXPORT_SYMBOL_GPL(vx_debug_space);
+EXPORT_SYMBOL_GPL(vx_debug_misc);
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/tag.c linux-2.6.22.10-vs2.3.0.29/kernel/vserver/tag.c
--- linux-2.6.22.10/kernel/vserver/tag.c        1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/tag.c     2007-10-05 14:54:36 +0200
@@ -0,0 +1,62 @@
+/*
+ *  linux/kernel/vserver/tag.c
+ *
+ *  Virtual Server: Shallow Tag Space
+ *
+ *  Copyright (C) 2007  Herbert Pötzl
+ *
+ *  V0.01  basic implementation
+ *
+ */
+
+#include <linux/sched.h>
+#include <linux/vserver/debug.h>
+#include <linux/vs_tag.h>
+
+#include <linux/vserver/tag_cmd.h>
+
+
+int dx_migrate_task(struct task_struct *p, tag_t tag)
+{
+       if (!p)
+               BUG();
+
+       vxdprintk(VXD_CBIT(tag, 5),
+               "dx_migrate_task(%p[#%d],#%d)", p, p->tag, tag);
+
+       task_lock(p);
+       p->tag = tag;
+       task_unlock(p);
+
+       vxdprintk(VXD_CBIT(tag, 5),
+               "moved task %p into [#%d]", p, tag);
+       return 0;
+}
+
+/* vserver syscall commands below here */
+
+/* taks xid and vx_info functions */
+
+
+int vc_task_tag(uint32_t id)
+{
+       tag_t tag;
+
+       if (id) {
+               struct task_struct *tsk;
+               read_lock(&tasklist_lock);
+               tsk = find_task_by_real_pid(id);
+               tag = (tsk) ? tsk->tag : -ESRCH;
+               read_unlock(&tasklist_lock);
+       } else
+               tag = dx_current_tag();
+       return tag;
+}
+
+
+int vc_tag_migrate(uint32_t tag)
+{
+       return dx_migrate_task(current, tag & 0xFFFF);
+}
+
+
diff -NurpP --minimal linux-2.6.22.10/kernel/vserver/vci_config.h linux-2.6.22.10-vs2.3.0.29/kernel/vserver/vci_config.h
--- linux-2.6.22.10/kernel/vserver/vci_config.h 1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/kernel/vserver/vci_config.h      2007-08-16 03:56:22 +0200
@@ -0,0 +1,81 @@
+
+/*  interface version */
+
+#define VCI_VERSION            0x00020302
+
+
+enum {
+       VCI_KCBIT_NO_DYNAMIC = 0,
+
+       VCI_KCBIT_PROC_SECURE = 4,
+       VCI_KCBIT_HARDCPU = 5,
+       VCI_KCBIT_IDLELIMIT = 6,
+       VCI_KCBIT_IDLETIME = 7,
+
+       VCI_KCBIT_COWBL = 8,
+       VCI_KCBIT_FULLCOWBL = 9,
+       VCI_KCBIT_SPACES = 10,
+       VCI_KCBIT_NETV2 = 11,
+
+       VCI_KCBIT_DEBUG = 16,
+       VCI_KCBIT_HISTORY = 20,
+       VCI_KCBIT_TAGGED = 24,
+       VCI_KCBIT_PPTAG = 28,
+
+       VCI_KCBIT_MORE = 31,
+};
+
+
+static inline uint32_t vci_kernel_config(void)
+{
+       return
+       (1 << VCI_KCBIT_NO_DYNAMIC) |
+
+       /* configured features */
+#ifdef CONFIG_VSERVER_PROC_SECURE
+       (1 << VCI_KCBIT_PROC_SECURE) |
+#endif
+#ifdef CONFIG_VSERVER_HARDCPU
+       (1 << VCI_KCBIT_HARDCPU) |
+#endif
+#ifdef CONFIG_VSERVER_IDLELIMIT
+       (1 << VCI_KCBIT_IDLELIMIT) |
+#endif
+#ifdef CONFIG_VSERVER_IDLETIME
+       (1 << VCI_KCBIT_IDLETIME) |
+#endif
+#ifdef CONFIG_VSERVER_COWBL
+       (1 << VCI_KCBIT_COWBL) |
+       (1 << VCI_KCBIT_FULLCOWBL) |
+#endif
+       (1 << VCI_KCBIT_SPACES) |
+       (1 << VCI_KCBIT_NETV2) |
+
+       /* debug options */
+#ifdef CONFIG_VSERVER_DEBUG
+       (1 << VCI_KCBIT_DEBUG) |
+#endif
+#ifdef CONFIG_VSERVER_HISTORY
+       (1 << VCI_KCBIT_HISTORY) |
+#endif
+
+       /* inode context tagging */
+#if    defined(CONFIG_TAGGING_NONE)
+       (0 << VCI_KCBIT_TAGGED) |
+#elif  defined(CONFIG_TAGGING_UID16)
+       (1 << VCI_KCBIT_TAGGED) |
+#elif  defined(CONFIG_TAGGING_GID16)
+       (2 << VCI_KCBIT_TAGGED) |
+#elif  defined(CONFIG_TAGGING_ID24)
+       (3 << VCI_KCBIT_TAGGED) |
+#elif  defined(CONFIG_TAGGING_INTERN)
+       (4 << VCI_KCBIT_TAGGED) |
+#elif  defined(CONFIG_TAGGING_RUNTIME)
+       (5 << VCI_KCBIT_TAGGED) |
+#else
+       (7 << VCI_KCBIT_TAGGED) |
+#endif
+       (1 << VCI_KCBIT_PPTAG) |
+       0;
+}
+
diff -NurpP --minimal linux-2.6.22.10/mm/filemap_xip.c linux-2.6.22.10-vs2.3.0.29/mm/filemap_xip.c
--- linux-2.6.22.10/mm/filemap_xip.c    2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/mm/filemap_xip.c 2007-08-05 20:53:13 +0200
@@ -14,6 +14,7 @@
 #include <linux/uio.h>
 #include <linux/rmap.h>
 #include <linux/sched.h>
+#include <linux/vs_memory.h>
 #include <asm/tlbflush.h>
 #include "filemap.h"
 
diff -NurpP --minimal linux-2.6.22.10/mm/fremap.c linux-2.6.22.10-vs2.3.0.29/mm/fremap.c
--- linux-2.6.22.10/mm/fremap.c 2007-02-06 03:01:56 +0100
+++ linux-2.6.22.10-vs2.3.0.29/mm/fremap.c      2007-08-05 20:53:13 +0200
@@ -15,6 +15,7 @@
 #include <linux/rmap.h>
 #include <linux/module.h>
 #include <linux/syscalls.h>
+#include <linux/vs_memory.h>
 
 #include <asm/mmu_context.h>
 #include <asm/cacheflush.h>
@@ -74,6 +75,8 @@ int install_page(struct mm_struct *mm, s
        err = -ENOMEM;
        if (page_mapcount(page) > INT_MAX/2)
                goto unlock;
+       if (!vx_rss_avail(mm, 1))
+               goto unlock;
 
        if (pte_none(*pte) || !zap_pte(mm, vma, addr, pte))
                inc_mm_counter(mm, file_rss);
diff -NurpP --minimal linux-2.6.22.10/mm/hugetlb.c linux-2.6.22.10-vs2.3.0.29/mm/hugetlb.c
--- linux-2.6.22.10/mm/hugetlb.c        2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/mm/hugetlb.c     2007-08-11 22:41:51 +0200
@@ -19,6 +19,7 @@
 #include <asm/pgtable.h>
 
 #include <linux/hugetlb.h>
+#include <linux/vs_memory.h>
 #include "internal.h"
 
 const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL;
diff -NurpP --minimal linux-2.6.22.10/mm/memory.c linux-2.6.22.10-vs2.3.0.29/mm/memory.c
--- linux-2.6.22.10/mm/memory.c 2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/mm/memory.c      2007-08-05 20:53:13 +0200
@@ -498,6 +498,9 @@ static int copy_pte_range(struct mm_stru
        int progress = 0;
        int rss[2];
 
+       if (!vx_rss_avail(dst_mm, ((end - addr)/PAGE_SIZE + 1)))
+               return -ENOMEM;
+
 again:
        rss[1] = rss[0] = 0;
        dst_pte = pte_alloc_map_lock(dst_mm, dst_pmd, addr, &dst_ptl);
@@ -2157,6 +2160,11 @@ static int do_swap_page(struct mm_struct
                count_vm_event(PGMAJFAULT);
        }
 
+       if (!vx_rss_avail(mm, 1)) {
+               ret = VM_FAULT_OOM;
+               goto out;
+       }
+
        delayacct_clear_flag(DELAYACCT_PF_SWAPIN);
        mark_page_accessed(page);
        lock_page(page);
@@ -2229,6 +2237,8 @@ static int do_anonymous_page(struct mm_s
                /* Allocate our own private page. */
                pte_unmap(page_table);
 
+               if (!vx_rss_avail(mm, 1))
+                       goto oom;
                if (unlikely(anon_vma_prepare(vma)))
                        goto oom;
                page = alloc_zeroed_user_highpage(vma, address);
@@ -2302,6 +2312,9 @@ static int do_no_page(struct mm_struct *
        pte_unmap(page_table);
        BUG_ON(vma->vm_flags & VM_PFNMAP);
 
+       if (!vx_rss_avail(mm, 1))
+               return VM_FAULT_OOM;
+
        if (vma->vm_file) {
                mapping = vma->vm_file->f_mapping;
                sequence = mapping->truncate_count;
@@ -2527,6 +2540,7 @@ static inline int handle_pte_fault(struc
 {
        pte_t entry;
        spinlock_t *ptl;
+       int ret, type = VXPT_UNKNOWN;
 
        entry = *pte;
        if (!pte_present(entry)) {
@@ -2555,9 +2569,12 @@ static inline int handle_pte_fault(struc
        if (unlikely(!pte_same(*pte, entry)))
                goto unlock;
        if (write_access) {
-               if (!pte_write(entry))
-                       return do_wp_page(mm, vma, address,
+               if (!pte_write(entry)) {
+                       ret = do_wp_page(mm, vma, address,
                                        pte, pmd, ptl, entry);
+                       type = VXPT_WRITE;
+                       goto out;
+               }
                entry = pte_mkdirty(entry);
        }
        entry = pte_mkyoung(entry);
@@ -2576,7 +2593,10 @@ static inline int handle_pte_fault(struc
        }
 unlock:
        pte_unmap_unlock(pte, ptl);
-       return VM_FAULT_MINOR;
+       ret = VM_FAULT_MINOR;
+out:
+       vx_page_fault(mm, vma, type, ret);
+       return ret;
 }
 
 /*
diff -NurpP --minimal linux-2.6.22.10/mm/mlock.c linux-2.6.22.10-vs2.3.0.29/mm/mlock.c
--- linux-2.6.22.10/mm/mlock.c  2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/mm/mlock.c       2007-08-11 22:41:51 +0200
@@ -12,6 +12,7 @@
 #include <linux/syscalls.h>
 #include <linux/sched.h>
 #include <linux/module.h>
+#include <linux/vs_memory.h>
 
 int can_do_mlock(void)
 {
@@ -76,7 +77,7 @@ success:
                        ret = make_pages_present(start, end);
        }
 
-       mm->locked_vm -= pages;
+       vx_vmlocked_sub(mm, pages);
 out:
        if (ret == -ENOMEM)
                ret = -EAGAIN;
@@ -134,7 +135,7 @@ static int do_mlock(unsigned long start,
 
 asmlinkage long sys_mlock(unsigned long start, size_t len)
 {
-       unsigned long locked;
+       unsigned long locked, grow;
        unsigned long lock_limit;
        int error = -ENOMEM;
 
@@ -145,8 +146,10 @@ asmlinkage long sys_mlock(unsigned long 
        len = PAGE_ALIGN(len + (start & ~PAGE_MASK));
        start &= PAGE_MASK;
 
-       locked = len >> PAGE_SHIFT;
-       locked += current->mm->locked_vm;
+       grow = len >> PAGE_SHIFT;
+       if (!vx_vmlocked_avail(current->mm, grow))
+               goto out;
+       locked = current->mm->locked_vm + grow;
 
        lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur;
        lock_limit >>= PAGE_SHIFT;
@@ -154,6 +157,7 @@ asmlinkage long sys_mlock(unsigned long 
        /* check against resource limits */
        if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
                error = do_mlock(start, len, 1);
+out:
        up_write(&current->mm->mmap_sem);
        return error;
 }
@@ -213,6 +217,8 @@ asmlinkage long sys_mlockall(int flags)
        lock_limit >>= PAGE_SHIFT;
 
        ret = -ENOMEM;
+       if (!vx_vmlocked_avail(current->mm, current->mm->total_vm))
+               goto out;
        if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
            capable(CAP_IPC_LOCK))
                ret = do_mlockall(flags);
diff -NurpP --minimal linux-2.6.22.10/mm/mmap.c linux-2.6.22.10-vs2.3.0.29/mm/mmap.c
--- linux-2.6.22.10/mm/mmap.c   2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/mm/mmap.c        2007-08-05 20:53:13 +0200
@@ -1144,10 +1144,10 @@ munmap_back:
                kmem_cache_free(vm_area_cachep, vma);
        }
 out:   
-       mm->total_vm += len >> PAGE_SHIFT;
+       vx_vmpages_add(mm, len >> PAGE_SHIFT);
        vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
        if (vm_flags & VM_LOCKED) {
-               mm->locked_vm += len >> PAGE_SHIFT;
+               vx_vmlocked_add(mm, len >> PAGE_SHIFT);
                make_pages_present(addr, addr + len);
        }
        if (flags & MAP_POPULATE) {
@@ -1502,9 +1502,9 @@ static int acct_stack_growth(struct vm_a
                return -ENOMEM;
 
        /* Ok, everything looks good - let it rip */
-       mm->total_vm += grow;
+       vx_vmpages_add(mm, grow);
        if (vma->vm_flags & VM_LOCKED)
-               mm->locked_vm += grow;
+               vx_vmlocked_add(mm, grow);
        vm_stat_account(mm, vma->vm_flags, vma->vm_file, grow);
        return 0;
 }
@@ -1662,9 +1662,9 @@ static void remove_vma_list(struct mm_st
        do {
                long nrpages = vma_pages(vma);
 
-               mm->total_vm -= nrpages;
+               vx_vmpages_sub(mm, nrpages);
                if (vma->vm_flags & VM_LOCKED)
-                       mm->locked_vm -= nrpages;
+                       vx_vmlocked_sub(mm, nrpages);
                vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
                vma = remove_vma(vma);
        } while (vma);
@@ -1903,6 +1903,8 @@ unsigned long do_brk(unsigned long addr,
                lock_limit >>= PAGE_SHIFT;
                if (locked > lock_limit && !capable(CAP_IPC_LOCK))
                        return -EAGAIN;
+               if (!vx_vmlocked_avail(mm, len >> PAGE_SHIFT))
+                       return -ENOMEM;
        }
 
        /*
@@ -1929,7 +1931,8 @@ unsigned long do_brk(unsigned long addr,
        if (mm->map_count > sysctl_max_map_count)
                return -ENOMEM;
 
-       if (security_vm_enough_memory(len >> PAGE_SHIFT))
+       if (security_vm_enough_memory(len >> PAGE_SHIFT) ||
+               !vx_vmpages_avail(mm, len >> PAGE_SHIFT))
                return -ENOMEM;
 
        /* Can we just expand an old private anonymous mapping? */
@@ -1955,9 +1958,9 @@ unsigned long do_brk(unsigned long addr,
                                (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)];
        vma_link(mm, vma, prev, rb_link, rb_parent);
 out:
-       mm->total_vm += len >> PAGE_SHIFT;
+       vx_vmpages_add(mm, len >> PAGE_SHIFT);
        if (flags & VM_LOCKED) {
-               mm->locked_vm += len >> PAGE_SHIFT;
+               vx_vmlocked_add(mm, len >> PAGE_SHIFT);
                make_pages_present(addr, addr + len);
        }
        return addr;
@@ -1986,6 +1989,11 @@ void exit_mmap(struct mm_struct *mm)
        free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0);
        tlb_finish_mmu(tlb, 0, end);
 
+       set_mm_counter(mm, file_rss, 0);
+       set_mm_counter(mm, anon_rss, 0);
+       vx_vmpages_sub(mm, mm->total_vm);
+       vx_vmlocked_sub(mm, mm->locked_vm);
+
        /*
         * Walk the list again, actually closing and freeing it,
         * with preemption enabled, without holding any MM locks.
@@ -2025,7 +2033,8 @@ int insert_vm_struct(struct mm_struct * 
        if (__vma && __vma->vm_start < vma->vm_end)
                return -ENOMEM;
        if ((vma->vm_flags & VM_ACCOUNT) &&
-            security_vm_enough_memory(vma_pages(vma)))
+               (security_vm_enough_memory(vma_pages(vma)) ||
+               !vx_vmpages_avail(mm, vma_pages(vma))))
                return -ENOMEM;
        vma_link(mm, vma, prev, rb_link, rb_parent);
        return 0;
@@ -2098,6 +2107,8 @@ int may_expand_vm(struct mm_struct *mm, 
 
        if (cur + npages > lim)
                return 0;
+       if (!vx_vmpages_avail(mm, npages))
+               return 0;
        return 1;
 }
 
@@ -2168,7 +2179,6 @@ int install_special_mapping(struct mm_st
                return -ENOMEM;
        }
 
-       mm->total_vm += len >> PAGE_SHIFT;
-
+       vx_vmpages_add(mm, len >> PAGE_SHIFT);
        return 0;
 }
diff -NurpP --minimal linux-2.6.22.10/mm/mremap.c linux-2.6.22.10-vs2.3.0.29/mm/mremap.c
--- linux-2.6.22.10/mm/mremap.c 2007-02-06 03:01:56 +0100
+++ linux-2.6.22.10-vs2.3.0.29/mm/mremap.c      2007-08-05 20:53:13 +0200
@@ -18,6 +18,7 @@
 #include <linux/highmem.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
+#include <linux/vs_memory.h>
 
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
@@ -212,7 +213,7 @@ static unsigned long move_vma(struct vm_
         * If this were a serious issue, we'd add a flag to do_munmap().
         */
        hiwater_vm = mm->hiwater_vm;
-       mm->total_vm += new_len >> PAGE_SHIFT;
+       vx_vmpages_add(mm, new_len >> PAGE_SHIFT);
        vm_stat_account(mm, vma->vm_flags, vma->vm_file, new_len>>PAGE_SHIFT);
 
        if (do_munmap(mm, old_addr, old_len) < 0) {
@@ -230,7 +231,7 @@ static unsigned long move_vma(struct vm_
        }
 
        if (vm_flags & VM_LOCKED) {
-               mm->locked_vm += new_len >> PAGE_SHIFT;
+               vx_vmlocked_add(mm, new_len >> PAGE_SHIFT);
                if (new_len > old_len)
                        make_pages_present(new_addr + old_len,
                                           new_addr + new_len);
@@ -337,6 +338,9 @@ unsigned long do_mremap(unsigned long ad
                ret = -EAGAIN;
                if (locked > lock_limit && !capable(CAP_IPC_LOCK))
                        goto out;
+               if (!vx_vmlocked_avail(current->mm,
+                       (new_len - old_len) >> PAGE_SHIFT))
+                       goto out;
        }
        if (!may_expand_vm(mm, (new_len - old_len) >> PAGE_SHIFT)) {
                ret = -ENOMEM;
@@ -365,10 +369,10 @@ unsigned long do_mremap(unsigned long ad
                        vma_adjust(vma, vma->vm_start,
                                addr + new_len, vma->vm_pgoff, NULL);
 
-                       mm->total_vm += pages;
+                       vx_vmpages_add(mm, pages);
                        vm_stat_account(mm, vma->vm_flags, vma->vm_file, pages);
                        if (vma->vm_flags & VM_LOCKED) {
-                               mm->locked_vm += pages;
+                               vx_vmlocked_add(mm, pages);
                                make_pages_present(addr + old_len,
                                                   addr + new_len);
                        }
diff -NurpP --minimal linux-2.6.22.10/mm/nommu.c linux-2.6.22.10-vs2.3.0.29/mm/nommu.c
--- linux-2.6.22.10/mm/nommu.c  2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/mm/nommu.c       2007-08-05 20:53:13 +0200
@@ -936,7 +936,7 @@ unsigned long do_mmap_pgoff(struct file 
        realalloc += kobjsize(vma);
        askedalloc += sizeof(*vma);
 
-       current->mm->total_vm += len >> PAGE_SHIFT;
+       vx_vmpages_add(current->mm, len >> PAGE_SHIFT);
 
        add_nommu_vma(vma);
 
@@ -1061,7 +1061,7 @@ int do_munmap(struct mm_struct *mm, unsi
        kfree(vml);
 
        update_hiwater_vm(mm);
-       mm->total_vm -= len >> PAGE_SHIFT;
+       vx_vmpages_sub(mm, len >> PAGE_SHIFT);
 
 #ifdef DEBUG
        show_process_blocks();
@@ -1093,7 +1093,7 @@ void exit_mmap(struct mm_struct * mm)
                printk("Exit_mmap:\n");
 #endif
 
-               mm->total_vm = 0;
+               vx_vmpages_sub(mm, mm->total_vm);
 
                while ((tmp = mm->context.vmlist)) {
                        mm->context.vmlist = tmp->next;
diff -NurpP --minimal linux-2.6.22.10/mm/oom_kill.c linux-2.6.22.10-vs2.3.0.29/mm/oom_kill.c
--- linux-2.6.22.10/mm/oom_kill.c       2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/mm/oom_kill.c    2007-08-05 20:53:13 +0200
@@ -24,6 +24,7 @@
 #include <linux/cpuset.h>
 #include <linux/module.h>
 #include <linux/notifier.h>
+#include <linux/vs_memory.h>
 
 int sysctl_panic_on_oom;
 /* #define DEBUG */
@@ -66,6 +67,12 @@ unsigned long badness(struct task_struct
        points = mm->total_vm;
 
        /*
+        * add points for context badness
+        */
+
+       points += vx_badness(p, mm);
+
+       /*
         * After this unlock we can no longer dereference local variable `mm'
         */
        task_unlock(p);
@@ -156,8 +163,8 @@ unsigned long badness(struct task_struct
        }
 
 #ifdef DEBUG
-       printk(KERN_DEBUG "OOMkill: task %d (%s) got %d points\n",
-       p->pid, p->comm, points);
+       printk(KERN_DEBUG "OOMkill: task %d:#%u (%s) got %d points\n",
+               p->pid, p->xid, p->comm, points);
 #endif
        return points;
 }
@@ -288,7 +295,8 @@ static void __oom_kill_task(struct task_
        }
 
        if (verbose)
-               printk(KERN_ERR "Killed process %d (%s)\n", p->pid, p->comm);
+               printk(KERN_ERR "Killed process %d:#%u (%s)\n",
+                               p->pid, p->xid, p->comm);
 
        /*
         * We give our sacrificial lamb high priority and access to
@@ -358,8 +366,8 @@ static int oom_kill_process(struct task_
                return 0;
        }
 
-       printk(KERN_ERR "%s: kill process %d (%s) score %li or a child\n",
-                                       message, p->pid, p->comm, points);
+       printk(KERN_ERR "%s: kill process %d:#%u (%s) score %li or a child\n",
+                               message, p->pid, p->xid, p->comm, points);
 
        /* Try to kill a child first */
        list_for_each(tsk, &p->children) {
diff -NurpP --minimal linux-2.6.22.10/mm/page_alloc.c linux-2.6.22.10-vs2.3.0.29/mm/page_alloc.c
--- linux-2.6.22.10/mm/page_alloc.c     2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/mm/page_alloc.c  2007-08-05 20:53:13 +0200
@@ -41,6 +41,8 @@
 #include <linux/pfn.h>
 #include <linux/backing-dev.h>
 #include <linux/fault-inject.h>
+#include <linux/vs_base.h>
+#include <linux/vs_limit.h>
 
 #include <asm/tlbflush.h>
 #include <asm/div64.h>
@@ -1488,6 +1490,9 @@ void si_meminfo(struct sysinfo *val)
        val->totalhigh = totalhigh_pages;
        val->freehigh = nr_free_highpages();
        val->mem_unit = PAGE_SIZE;
+
+       if (vx_flags(VXF_VIRT_MEM, 0))
+               vx_vsi_meminfo(val);
 }
 
 EXPORT_SYMBOL(si_meminfo);
@@ -1508,6 +1513,9 @@ void si_meminfo_node(struct sysinfo *val
        val->freehigh = 0;
 #endif
        val->mem_unit = PAGE_SIZE;
+
+       if (vx_flags(VXF_VIRT_MEM, 0))
+               vx_vsi_meminfo(val);
 }
 #endif
 
diff -NurpP --minimal linux-2.6.22.10/mm/rmap.c linux-2.6.22.10-vs2.3.0.29/mm/rmap.c
--- linux-2.6.22.10/mm/rmap.c   2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/mm/rmap.c        2007-08-05 20:53:13 +0200
@@ -48,6 +48,7 @@
 #include <linux/rcupdate.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
+#include <linux/vs_memory.h>
 
 #include <asm/tlbflush.h>
 
diff -NurpP --minimal linux-2.6.22.10/mm/shmem.c linux-2.6.22.10-vs2.3.0.29/mm/shmem.c
--- linux-2.6.22.10/mm/shmem.c  2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/mm/shmem.c       2007-08-05 20:53:13 +0200
@@ -55,7 +55,6 @@
 #include <asm/pgtable.h>
 
 /* This magic number is used in glibc for posix shared memory */
-#define TMPFS_MAGIC    0x01021994
 
 #define ENTRIES_PER_PAGE (PAGE_CACHE_SIZE/sizeof(unsigned long))
 #define ENTRIES_PER_PAGEPAGE (ENTRIES_PER_PAGE*ENTRIES_PER_PAGE)
@@ -1734,7 +1733,7 @@ static int shmem_statfs(struct dentry *d
 {
        struct shmem_sb_info *sbinfo = SHMEM_SB(dentry->d_sb);
 
-       buf->f_type = TMPFS_MAGIC;
+       buf->f_type = TMPFS_SUPER_MAGIC;
        buf->f_bsize = PAGE_CACHE_SIZE;
        buf->f_namelen = NAME_MAX;
        spin_lock(&sbinfo->stat_lock);
@@ -2308,7 +2307,7 @@ static int shmem_fill_super(struct super
        sb->s_maxbytes = SHMEM_MAX_BYTES;
        sb->s_blocksize = PAGE_CACHE_SIZE;
        sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
-       sb->s_magic = TMPFS_MAGIC;
+       sb->s_magic = TMPFS_SUPER_MAGIC;
        sb->s_op = &shmem_ops;
        sb->s_time_gran = 1;
 #ifdef CONFIG_TMPFS_POSIX_ACL
diff -NurpP --minimal linux-2.6.22.10/mm/slab.c linux-2.6.22.10-vs2.3.0.29/mm/slab.c
--- linux-2.6.22.10/mm/slab.c   2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/mm/slab.c        2007-08-05 20:53:13 +0200
@@ -510,6 +510,8 @@ struct kmem_cache {
 #define STATS_INC_FREEMISS(x)  do { } while (0)
 #endif
 
+#include "slab_vs.h"
+
 #if DEBUG
 
 /*
@@ -3314,6 +3316,7 @@ retry:
 
        obj = slab_get_obj(cachep, slabp, nodeid);
        check_slabp(cachep, slabp);
+       vx_slab_alloc(cachep, flags);
        l3->free_objects--;
        /* move slabp to correct slabp list: */
        list_del(&slabp->list);
@@ -3386,6 +3389,7 @@ __cache_alloc_node(struct kmem_cache *ca
        /* ___cache_alloc_node can fall back to other nodes */
        ptr = ____cache_alloc_node(cachep, flags, nodeid);
   out:
+       vx_slab_alloc(cachep, flags);
        local_irq_restore(save_flags);
        ptr = cache_alloc_debugcheck_after(cachep, flags, ptr, caller);
 
@@ -3551,6 +3555,7 @@ static inline void __cache_free(struct k
 
        check_irq_off();
        objp = cache_free_debugcheck(cachep, objp, __builtin_return_address(0));
+       vx_slab_free(cachep);
 
        if (cache_free_alien(cachep, objp))
                return;
diff -NurpP --minimal linux-2.6.22.10/mm/slab_vs.h linux-2.6.22.10-vs2.3.0.29/mm/slab_vs.h
--- linux-2.6.22.10/mm/slab_vs.h        1970-01-01 01:00:00 +0100
+++ linux-2.6.22.10-vs2.3.0.29/mm/slab_vs.h     2007-08-05 20:53:13 +0200
@@ -0,0 +1,27 @@
+
+#include <linux/vserver/context.h>
+
+#include <linux/vs_context.h>
+
+static inline
+void vx_slab_alloc(struct kmem_cache *cachep, gfp_t flags)
+{
+       int what = gfp_zone(cachep->gfpflags);
+
+       if (!current->vx_info)
+               return;
+
+       atomic_add(cachep->buffer_size, &current->vx_info->cacct.slab[what]);
+}
+
+static inline
+void vx_slab_free(struct kmem_cache *cachep)
+{
+       int what = gfp_zone(cachep->gfpflags);
+
+       if (!current->vx_info)
+               return;
+
+       atomic_sub(cachep->buffer_size, &current->vx_info->cacct.slab[what]);
+}
+
diff -NurpP --minimal linux-2.6.22.10/mm/swapfile.c linux-2.6.22.10-vs2.3.0.29/mm/swapfile.c
--- linux-2.6.22.10/mm/swapfile.c       2007-07-09 13:20:04 +0200
+++ linux-2.6.22.10-vs2.3.0.29/mm/swapfile.c    2007-08-05 20:53:13 +0200
@@ -31,6 +31,8 @@
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 #include <linux/swapops.h>
+#include <linux/vs_base.h>
+#include <linux/vs_memory.h>
 
 DEFINE_SPINLOCK(swap_lock);
 unsigned int nr_swapfiles;
@@ -1712,6 +1714,8 @@ void si_swapinfo(struct sysinfo *val)
        val->freeswap = nr_swap_pages + nr_to_be_unused;
        val->totalswap = total_swap_pages + nr_to_be_unused;
        spin_unlock(&swap_lock);
+       if (vx_flags(VXF_VIRT_MEM, 0))
+               vx_vsi_swapinfo(val);
 }
 
 /*
diff -NurpP --minimal linux-2.6.22.10/net/core/dev.c linux-2.6.22.10-vs2.3.0.29/net/core/dev.c
--- linux-2.6.22.10/net/core/dev.c      2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/core/dev.c   2007-09-05 03:06:12 +0200
@@ -117,6 +117,7 @@
 #include <linux/err.h>
 #include <linux/ctype.h>
 #include <linux/if_arp.h>
+#include <linux/vs_inet.h>
 
 /*
  *     The list of packet types we will receive (as opposed to discard)
@@ -2120,6 +2121,8 @@ static int dev_ifconf(char __user *arg)
 
        total = 0;
        for_each_netdev(dev) {
+               if (!nx_dev_visible(current->nx_info, dev))
+                       continue;
                for (i = 0; i < NPROTO; i++) {
                        if (gifconf_list[i]) {
                                int done;
@@ -2184,6 +2187,9 @@ static void dev_seq_printf_stats(struct 
 {
        struct net_device_stats *stats = dev->get_stats(dev);
 
+       if (!nx_dev_visible(current->nx_info, dev))
+               return;
+
        seq_printf(seq, "%6s:%8lu %7lu %4lu %4lu %4lu %5lu %10lu %9lu "
                   "%8lu %7lu %4lu %4lu %4lu %5lu %7lu %10lu\n",
                   dev->name, stats->rx_bytes, stats->rx_packets,
diff -NurpP --minimal linux-2.6.22.10/net/core/rtnetlink.c linux-2.6.22.10-vs2.3.0.29/net/core/rtnetlink.c
--- linux-2.6.22.10/net/core/rtnetlink.c        2007-07-09 13:20:05 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/core/rtnetlink.c     2007-08-05 20:53:13 +0200
@@ -537,6 +537,8 @@ static int rtnl_dump_ifinfo(struct sk_bu
 
        idx = 0;
        for_each_netdev(dev) {
+               if (!nx_dev_visible(skb->sk->sk_nx_info, dev))
+                       continue;
                if (idx < s_idx)
                        goto cont;
                if (rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
@@ -797,6 +799,9 @@ void rtmsg_ifinfo(int type, struct net_d
        struct sk_buff *skb;
        int err = -ENOBUFS;
 
+       if (!nx_dev_visible(current->nx_info, dev))
+               return;
+
        skb = nlmsg_new(if_nlmsg_size(), GFP_KERNEL);
        if (skb == NULL)
                goto errout;
diff -NurpP --minimal linux-2.6.22.10/net/core/sock.c linux-2.6.22.10-vs2.3.0.29/net/core/sock.c
--- linux-2.6.22.10/net/core/sock.c     2007-07-09 13:20:05 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/core/sock.c  2007-10-01 14:57:43 +0200
@@ -125,6 +125,10 @@
 #include <linux/ipsec.h>
 
 #include <linux/filter.h>
+#include <linux/vs_socket.h>
+#include <linux/vs_limit.h>
+#include <linux/vs_context.h>
+#include <linux/vs_network.h>
 
 #ifdef CONFIG_INET
 #include <net/tcp.h>
@@ -812,6 +816,9 @@ int sock_getsockopt(struct socket *sock,
        case SO_PEERSEC:
                return security_socket_getpeersec_stream(sock, optval, optlen, len);
 
+               case SO_PEERTAG:
+                       return vx_socket_peer_tag(sock, level, optval, optlen, len);
+
        default:
                return -ENOPROTOOPT;
        }
@@ -869,6 +876,8 @@ struct sock *sk_alloc(int family, gfp_t 
                        sk->sk_prot = sk->sk_prot_creator = prot;
                        sock_lock_init(sk);
                }
+               sock_vx_init(sk);
+               sock_nx_init(sk);
 
                if (security_sk_alloc(sk, family, priority))
                        goto out_free;
@@ -907,6 +916,11 @@ void sk_free(struct sock *sk)
                       __FUNCTION__, atomic_read(&sk->sk_omem_alloc));
 
        security_sk_free(sk);
+       vx_sock_dec(sk);
+       clr_vx_info(&sk->sk_vx_info);
+       sk->sk_xid = -1;
+       clr_nx_info(&sk->sk_nx_info);
+       sk->sk_nid = -1;
        if (sk->sk_prot_creator->slab != NULL)
                kmem_cache_free(sk->sk_prot_creator->slab, sk);
        else
@@ -924,6 +938,8 @@ struct sock *sk_clone(const struct sock 
                sock_copy(newsk, sk);
 
                /* SANITY */
+               sock_vx_init(newsk);
+               sock_nx_init(newsk);
                sk_node_init(&newsk->sk_node);
                sock_lock_init(newsk);
                bh_lock_sock(newsk);
@@ -969,6 +985,12 @@ struct sock *sk_clone(const struct sock 
                newsk->sk_priority = 0;
                atomic_set(&newsk->sk_refcnt, 2);
 
+               set_vx_info(&newsk->sk_vx_info, sk->sk_vx_info);
+               newsk->sk_xid = sk->sk_xid;
+               vx_sock_inc(newsk);
+               set_nx_info(&newsk->sk_nx_info, sk->sk_nx_info);
+               newsk->sk_nid = sk->sk_nid;
+
                /*
                 * Increment the counter in the same struct proto as the master
                 * sock (sk_refcnt_debug_inc uses newsk->sk_prot->socks, that
@@ -1551,6 +1573,11 @@ void sock_init_data(struct socket *sock,
 
        sk->sk_stamp = ktime_set(-1L, -1L);
 
+       set_vx_info(&sk->sk_vx_info, current->vx_info);
+       sk->sk_xid = vx_current_xid();
+       vx_sock_inc(sk);
+       set_nx_info(&sk->sk_nx_info, current->nx_info);
+       sk->sk_nid = nx_current_nid();
        atomic_set(&sk->sk_refcnt, 1);
 }
 
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/af_inet.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/af_inet.c
--- linux-2.6.22.10/net/ipv4/af_inet.c  2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/af_inet.c       2007-10-05 14:54:36 +0200
@@ -115,6 +115,7 @@
 #ifdef CONFIG_IP_MROUTE
 #include <linux/mroute.h>
 #endif
+#include <linux/vs_limit.h>
 
 DEFINE_SNMP_STAT(struct linux_mib, net_statistics) __read_mostly;
 
@@ -308,9 +309,12 @@ lookup_protocol:
        }
 
        err = -EPERM;
+       if ((protocol == IPPROTO_ICMP) &&
+               nx_capable(answer->capability, NXC_RAW_ICMP))
+               goto override;
        if (answer->capability > 0 && !capable(answer->capability))
                goto out_rcu_unlock;
-
+override:
        sock->ops = answer->ops;
        answer_prot = answer->prot;
        answer_no_check = answer->no_check;
@@ -424,6 +428,7 @@ int inet_bind(struct socket *sock, struc
        struct sockaddr_in *addr = (struct sockaddr_in *)uaddr;
        struct sock *sk = sock->sk;
        struct inet_sock *inet = inet_sk(sk);
+       struct nx_v4_sock_addr nsa;
        unsigned short snum;
        int chk_addr_ret;
        int err;
@@ -437,7 +442,11 @@ int inet_bind(struct socket *sock, struc
        if (addr_len < sizeof(struct sockaddr_in))
                goto out;
 
-       chk_addr_ret = inet_addr_type(addr->sin_addr.s_addr);
+       err = v4_map_sock_addr(inet, addr, &nsa);
+       if (err)
+               goto out;
+
+       chk_addr_ret = inet_addr_type(nsa.saddr);
 
        /* Not specified by any standard per-se, however it breaks too
         * many applications when removed.  It is unfortunate since
@@ -449,7 +458,7 @@ int inet_bind(struct socket *sock, struc
        err = -EADDRNOTAVAIL;
        if (!sysctl_ip_nonlocal_bind &&
            !inet->freebind &&
-           addr->sin_addr.s_addr != INADDR_ANY &&
+           nsa.saddr != INADDR_ANY &&
            chk_addr_ret != RTN_LOCAL &&
            chk_addr_ret != RTN_MULTICAST &&
            chk_addr_ret != RTN_BROADCAST)
@@ -474,7 +483,7 @@ int inet_bind(struct socket *sock, struc
        if (sk->sk_state != TCP_CLOSE || inet->num)
                goto out_release_sock;
 
-       inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr;
+       v4_set_sock_addr(inet, &nsa);
        if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
                inet->saddr = 0;  /* Use device */
 
@@ -667,11 +676,13 @@ int inet_getname(struct socket *sock, st
                     peer == 1))
                        return -ENOTCONN;
                sin->sin_port = inet->dport;
-               sin->sin_addr.s_addr = inet->daddr;
+               sin->sin_addr.s_addr =
+                       nx_map_sock_lback(sk->sk_nx_info, inet->daddr);
        } else {
                __be32 addr = inet->rcv_saddr;
                if (!addr)
                        addr = inet->saddr;
+               addr = nx_map_sock_lback(sk->sk_nx_info, addr);
                sin->sin_port = inet->sport;
                sin->sin_addr.s_addr = addr;
        }
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/devinet.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/devinet.c
--- linux-2.6.22.10/net/ipv4/devinet.c  2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/devinet.c       2007-09-30 14:58:01 +0200
@@ -427,6 +427,7 @@ struct in_device *inetdev_by_index(int i
        return in_dev;
 }
 
+
 /* Called only from RTNL semaphored context. No locks. */
 
 struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix,
@@ -676,6 +677,8 @@ int devinet_ioctl(unsigned int cmd, void
                *colon = ':';
 
        if ((in_dev = __in_dev_get_rtnl(dev)) != NULL) {
+               struct nx_info *nxi = current->nx_info;
+
                if (tryaddrmatch) {
                        /* Matthias Andree */
                        /* compare label and address (4.4BSD style) */
@@ -684,6 +687,8 @@ int devinet_ioctl(unsigned int cmd, void
                           This is checked above. */
                        for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL;
                             ifap = &ifa->ifa_next) {
+                               if (!nx_v4_ifa_visible(nxi, ifa))
+                                       continue;
                                if (!strcmp(ifr.ifr_name, ifa->ifa_label) &&
                                    sin_orig.sin_addr.s_addr ==
                                                        ifa->ifa_address) {
@@ -696,9 +701,12 @@ int devinet_ioctl(unsigned int cmd, void
                   comparing just the label */
                if (!ifa) {
                        for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL;
-                            ifap = &ifa->ifa_next)
+                            ifap = &ifa->ifa_next) {
+                               if (!nx_v4_ifa_visible(nxi, ifa))
+                                       continue;
                                if (!strcmp(ifr.ifr_name, ifa->ifa_label))
                                        break;
+                       }
                }
        }
 
@@ -849,6 +857,8 @@ static int inet_gifconf(struct net_devic
                goto out;
 
        for (; ifa; ifa = ifa->ifa_next) {
+               if (!nx_v4_ifa_visible(current->nx_info, ifa))
+                       continue;
                if (!buf) {
                        done += sizeof(ifr);
                        continue;
@@ -1179,6 +1189,7 @@ static int inet_dump_ifaddr(struct sk_bu
        struct net_device *dev;
        struct in_device *in_dev;
        struct in_ifaddr *ifa;
+       struct sock *sk = skb->sk;
        int s_ip_idx, s_idx = cb->args[0];
 
        s_ip_idx = ip_idx = cb->args[1];
@@ -1193,6 +1204,8 @@ static int inet_dump_ifaddr(struct sk_bu
 
                for (ifa = in_dev->ifa_list, ip_idx = 0; ifa;
                     ifa = ifa->ifa_next, ip_idx++) {
+                       if (sk && !nx_v4_ifa_visible(sk->sk_nx_info, ifa))
+                               continue;
                        if (ip_idx < s_ip_idx)
                                continue;
                        if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/fib_hash.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/fib_hash.c
--- linux-2.6.22.10/net/ipv4/fib_hash.c 2007-07-09 13:20:05 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/fib_hash.c      2007-08-05 20:53:13 +0200
@@ -1012,7 +1012,7 @@ static int fib_seq_show(struct seq_file 
        prefix  = f->fn_key;
        mask    = FZ_MASK(iter->zone);
        flags   = fib_flag_trans(fa->fa_type, mask, fi);
-       if (fi)
+       if (fi && nx_dev_visible(current->nx_info, fi->fib_dev))
                snprintf(bf, sizeof(bf),
                         "%s\t%08X\t%08X\t%04X\t%d\t%u\t%d\t%08X\t%d\t%u\t%u",
                         fi->fib_dev ? fi->fib_dev->name : "*", prefix,
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/inet_connection_sock.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/inet_connection_sock.c
--- linux-2.6.22.10/net/ipv4/inet_connection_sock.c     2007-07-09 13:20:05 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/inet_connection_sock.c  2007-10-18 01:28:12 +0200
@@ -34,10 +34,40 @@ EXPORT_SYMBOL(inet_csk_timer_bug_msg);
  */
 int sysctl_local_port_range[2] = { 32768, 61000 };
 
+int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
+{
+       __be32  sk1_rcv_saddr = inet_rcv_saddr(sk1),
+               sk2_rcv_saddr = inet_rcv_saddr(sk2);
+
+       if (inet_v6_ipv6only(sk2))
+               return 0;
+
+       if (sk1_rcv_saddr &&
+           sk2_rcv_saddr &&
+           sk1_rcv_saddr == sk2_rcv_saddr)
+               return 1;
+
+       if (sk1_rcv_saddr &&
+           !sk2_rcv_saddr &&
+           v4_addr_in_nx_info(sk2->sk_nx_info, sk1_rcv_saddr, NXA_MASK_BIND))
+               return 1;
+
+       if (sk2_rcv_saddr &&
+           !sk1_rcv_saddr &&
+           v4_addr_in_nx_info(sk1->sk_nx_info, sk2_rcv_saddr, NXA_MASK_BIND))
+               return 1;
+
+       if (!sk1_rcv_saddr &&
+           !sk2_rcv_saddr &&
+           nx_v4_addr_conflict(sk1->sk_nx_info, sk2->sk_nx_info))
+               return 1;
+
+       return 0;
+}
+
 int inet_csk_bind_conflict(const struct sock *sk,
                           const struct inet_bind_bucket *tb)
 {
-       const __be32 sk_rcv_saddr = inet_rcv_saddr(sk);
        struct sock *sk2;
        struct hlist_node *node;
        int reuse = sk->sk_reuse;
@@ -50,9 +80,7 @@ int inet_csk_bind_conflict(const struct 
                     sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) {
                        if (!reuse || !sk2->sk_reuse ||
                            sk2->sk_state == TCP_LISTEN) {
-                               const __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
-                               if (!sk2_rcv_saddr || !sk_rcv_saddr ||
-                                   sk2_rcv_saddr == sk_rcv_saddr)
+                               if (ipv4_rcv_saddr_equal(sk, sk2))
                                        break;
                        }
                }
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/inet_diag.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/inet_diag.c
--- linux-2.6.22.10/net/ipv4/inet_diag.c        2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/inet_diag.c     2007-10-30 02:36:32 +0100
@@ -98,8 +98,8 @@ static int inet_csk_diag_fill(struct soc
 
        r->id.idiag_sport = inet->sport;
        r->id.idiag_dport = inet->dport;
-       r->id.idiag_src[0] = inet->rcv_saddr;
-       r->id.idiag_dst[0] = inet->daddr;
+       r->id.idiag_src[0] = nx_map_sock_lback(sk->sk_nx_info, inet->rcv_saddr);
+       r->id.idiag_dst[0] = nx_map_sock_lback(sk->sk_nx_info, inet->daddr);
 
 #if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
        if (r->idiag_family == AF_INET6) {
@@ -186,8 +186,8 @@ static int inet_twsk_diag_fill(struct in
        r->id.idiag_cookie[1] = (u32)(((unsigned long)tw >> 31) >> 1);
        r->id.idiag_sport     = tw->tw_sport;
        r->id.idiag_dport     = tw->tw_dport;
-       r->id.idiag_src[0]    = tw->tw_rcv_saddr;
-       r->id.idiag_dst[0]    = tw->tw_daddr;
+       r->id.idiag_src[0]    = nx_map_sock_lback(tw->tw_nx_info, tw->tw_rcv_saddr);
+       r->id.idiag_dst[0]    = nx_map_sock_lback(tw->tw_nx_info, tw->tw_daddr);
        r->idiag_state        = tw->tw_substate;
        r->idiag_timer        = 3;
        r->idiag_expires      = (tmo * 1000 + HZ - 1) / HZ;
@@ -239,6 +239,7 @@ static int inet_diag_get_exact(struct sk
        hashinfo = handler->idiag_hashinfo;
 
        if (req->idiag_family == AF_INET) {
+               /* TODO: lback */
                sk = inet_lookup(hashinfo, req->id.idiag_dst[0],
                                 req->id.idiag_dport, req->id.idiag_src[0],
                                 req->id.idiag_sport, req->id.idiag_if);
@@ -478,6 +479,7 @@ static int inet_csk_diag_dump(struct soc
                } else
 #endif
                {
+                       /* TODO: lback */
                        entry.saddr = &inet->rcv_saddr;
                        entry.daddr = &inet->daddr;
                }
@@ -514,6 +516,7 @@ static int inet_twsk_diag_dump(struct in
                } else
 #endif
                {
+                       /* TODO: lback */
                        entry.saddr = &tw->tw_rcv_saddr;
                        entry.daddr = &tw->tw_daddr;
                }
@@ -560,8 +563,8 @@ static int inet_diag_fill_req(struct sk_
 
        r->id.idiag_sport = inet->sport;
        r->id.idiag_dport = ireq->rmt_port;
-       r->id.idiag_src[0] = ireq->loc_addr;
-       r->id.idiag_dst[0] = ireq->rmt_addr;
+       r->id.idiag_src[0] = nx_map_sock_lback(sk->sk_nx_info, ireq->loc_addr);
+       r->id.idiag_dst[0] = nx_map_sock_lback(sk->sk_nx_info, ireq->rmt_addr);
        r->idiag_expires = jiffies_to_msecs(tmo);
        r->idiag_rqueue = 0;
        r->idiag_wqueue = 0;
@@ -631,6 +634,7 @@ static int inet_diag_dump_reqs(struct sk
                                continue;
 
                        if (bc) {
+                               /* TODO: lback */
                                entry.saddr =
 #if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
                                        (entry.family == AF_INET6) ?
@@ -697,6 +701,8 @@ static int inet_diag_dump(struct sk_buff
                        sk_for_each(sk, node, &hashinfo->listening_hash[i]) {
                                struct inet_sock *inet = inet_sk(sk);
 
+                               if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
+                                       continue;
                                if (num < s_num) {
                                        num++;
                                        continue;
@@ -757,6 +763,8 @@ skip_listen_ht:
                sk_for_each(sk, node, &head->chain) {
                        struct inet_sock *inet = inet_sk(sk);
 
+                       if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
+                               continue;
                        if (num < s_num)
                                goto next_normal;
                        if (!(r->idiag_states & (1 << sk->sk_state)))
@@ -781,6 +789,8 @@ next_normal:
                        inet_twsk_for_each(tw, node,
                                    &head->twchain) {
 
+                               if (!nx_check(tw->tw_nid, VS_WATCH_P | VS_IDENT))
+                                       continue;
                                if (num < s_num)
                                        goto next_dying;
                                if (r->id.idiag_sport != tw->tw_sport &&
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/inet_hashtables.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/inet_hashtables.c
--- linux-2.6.22.10/net/ipv4/inet_hashtables.c  2007-05-02 19:25:40 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/inet_hashtables.c       2007-08-05 20:53:13 +0200
@@ -140,11 +140,10 @@ static struct sock *inet_lookup_listener
                        const __be32 rcv_saddr = inet->rcv_saddr;
                        int score = sk->sk_family == PF_INET ? 1 : 0;
 
-                       if (rcv_saddr) {
-                               if (rcv_saddr != daddr)
-                                       continue;
+                       if (v4_inet_addr_match(sk->sk_nx_info, daddr, rcv_saddr))
                                score += 2;
-                       }
+                       else
+                               continue;
                        if (sk->sk_bound_dev_if) {
                                if (sk->sk_bound_dev_if != dif)
                                        continue;
@@ -175,7 +174,7 @@ struct sock *__inet_lookup_listener(stru
                const struct inet_sock *inet = inet_sk((sk = __sk_head(head)));
 
                if (inet->num == hnum && !sk->sk_node.next &&
-                   (!inet->rcv_saddr || inet->rcv_saddr == daddr) &&
+                   v4_inet_addr_match(sk->sk_nx_info, daddr, inet->rcv_saddr) &&
                    (sk->sk_family == PF_INET || !ipv6_only_sock(sk)) &&
                    !sk->sk_bound_dev_if)
                        goto sherry_cache;
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/raw.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/raw.c
--- linux-2.6.22.10/net/ipv4/raw.c      2007-07-09 13:20:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/raw.c   2007-10-05 12:29:05 +0200
@@ -112,7 +112,7 @@ struct sock *__raw_v4_lookup(struct sock
 
                if (inet->num == num                                    &&
                    !(inet->daddr && inet->daddr != raddr)              &&
-                   !(inet->rcv_saddr && inet->rcv_saddr != laddr)      &&
+                   v4_sock_addr_match(sk->sk_nx_info, inet, laddr)     &&
                    !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
                        goto found; /* gotcha */
        }
@@ -314,6 +314,12 @@ static int raw_send_hdrinc(struct sock *
                iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
        }
 
+       err = -EPERM;
+       if (!nx_check(0, VS_ADMIN) && !capable(CAP_NET_RAW) &&
+               sk->sk_nx_info &&
+               !v4_addr_in_nx_info(sk->sk_nx_info, iph->saddr, NXA_MASK_BIND))
+               goto error_free;
+
        err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
                      dst_output);
        if (err > 0)
@@ -325,6 +331,7 @@ out:
 
 error_fault:
        err = -EFAULT;
+error_free:
        kfree_skb(skb);
 error:
        IP_INC_STATS(IPSTATS_MIB_OUTDISCARDS);
@@ -491,6 +498,12 @@ static int raw_sendmsg(struct kiocb *ioc
                }
 
                security_sk_classify_flow(sk, &fl);
+               if (sk->sk_nx_info) {
+                       err = ip_v4_find_src(sk->sk_nx_info, &rt, &fl);
+
+                       if (err)
+                               goto done;
+               }
                err = ip_route_output_flow(&rt, &fl, sk, 1);
        }
        if (err)
@@ -553,17 +566,19 @@ static int raw_bind(struct sock *sk, str
 {
        struct inet_sock *inet = inet_sk(sk);
        struct sockaddr_in *addr = (struct sockaddr_in *) uaddr;
+       struct nx_v4_sock_addr nsa = { 0 };
        int ret = -EINVAL;
        int chk_addr_ret;
 
        if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
                goto out;
-       chk_addr_ret = inet_addr_type(addr->sin_addr.s_addr);
+       v4_map_sock_addr(inet, addr, &nsa);
+       chk_addr_ret = inet_addr_type(nsa.saddr);
        ret = -EADDRNOTAVAIL;
-       if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
+       if (nsa.saddr && chk_addr_ret != RTN_LOCAL &&
            chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)
                goto out;
-       inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr;
+       v4_set_sock_addr(inet, &nsa);
        if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
                inet->saddr = 0;  /* Use device */
        sk_dst_reset(sk);
@@ -615,7 +630,8 @@ static int raw_recvmsg(struct kiocb *ioc
        /* Copy the address. */
        if (sin) {
                sin->sin_family = AF_INET;
-               sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
+               sin->sin_addr.s_addr =
+                       nx_map_sock_lback(sk->sk_nx_info, ip_hdr(skb)->saddr);
                sin->sin_port = 0;
                memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
        }
@@ -795,7 +811,8 @@ static struct sock *raw_get_first(struct
                struct hlist_node *node;
 
                sk_for_each(sk, node, &raw_v4_htable[state->bucket])
-                       if (sk->sk_family == PF_INET)
+                       if (sk->sk_family == PF_INET &&
+                               nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
                                goto found;
        }
        sk = NULL;
@@ -811,7 +828,8 @@ static struct sock *raw_get_next(struct 
                sk = sk_next(sk);
 try_again:
                ;
-       } while (sk && sk->sk_family != PF_INET);
+       } while (sk && (sk->sk_family != PF_INET ||
+               !nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT)));
 
        if (!sk && ++state->bucket < RAWV4_HTABLE_SIZE) {
                sk = sk_head(&raw_v4_htable[state->bucket]);
@@ -863,7 +881,10 @@ static __inline__ char *get_raw_sock(str
 
        sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X"
                " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p",
-               i, src, srcp, dest, destp, sp->sk_state,
+               i,
+               nx_map_sock_lback(current_nx_info(), src), srcp,
+               nx_map_sock_lback(current_nx_info(), dest), destp,
+               sp->sk_state,
                atomic_read(&sp->sk_wmem_alloc),
                atomic_read(&sp->sk_rmem_alloc),
                0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/tcp.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/tcp.c
--- linux-2.6.22.10/net/ipv4/tcp.c      2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/tcp.c   2007-09-05 03:06:12 +0200
@@ -258,6 +258,7 @@
 #include <linux/cache.h>
 #include <linux/err.h>
 #include <linux/crypto.h>
+#include <linux/in.h>
 
 #include <net/icmp.h>
 #include <net/tcp.h>
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/tcp_ipv4.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/tcp_ipv4.c
--- linux-2.6.22.10/net/ipv4/tcp_ipv4.c 2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/tcp_ipv4.c      2007-09-05 03:06:12 +0200
@@ -1975,6 +1975,12 @@ static void *listening_get_next(struct s
                req = req->dl_next;
                while (1) {
                        while (req) {
+                               vxdprintk(VXD_CBIT(net, 6),
+                                       "sk,req: %p [#%d] (from %d)", req->sk,
+                                       (req->sk)?req->sk->sk_nid:0, nx_current_nid());
+                               if (req->sk &&
+                                       !nx_check(req->sk->sk_nid, VS_WATCH_P | VS_IDENT))
+                                       continue;
                                if (req->rsk_ops->family == st->family) {
                                        cur = req;
                                        goto out;
@@ -1999,6 +2005,10 @@ get_req:
        }
 get_sk:
        sk_for_each_from(sk, node) {
+               vxdprintk(VXD_CBIT(net, 6), "sk: %p [#%d] (from %d)",
+                       sk, sk->sk_nid, nx_current_nid());
+               if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
+                       continue;
                if (sk->sk_family == st->family) {
                        cur = sk;
                        goto out;
@@ -2050,18 +2060,26 @@ static void *established_get_first(struc
 
                read_lock(&tcp_hashinfo.ehash[st->bucket].lock);
                sk_for_each(sk, node, &tcp_hashinfo.ehash[st->bucket].chain) {
-                       if (sk->sk_family != st->family) {
+                       vxdprintk(VXD_CBIT(net, 6),
+                               "sk,egf: %p [#%d] (from %d)",
+                               sk, sk->sk_nid, nx_current_nid());
+                       if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
+                               continue;
+                       if (sk->sk_family != st->family)
                                continue;
-                       }
                        rc = sk;
                        goto out;
                }
                st->state = TCP_SEQ_STATE_TIME_WAIT;
                inet_twsk_for_each(tw, node,
                                   &tcp_hashinfo.ehash[st->bucket].twchain) {
-                       if (tw->tw_family != st->family) {
+                       vxdprintk(VXD_CBIT(net, 6),
+                               "tw: %p [#%d] (from %d)",
+                               tw, tw->tw_nid, nx_current_nid());
+                       if (!nx_check(tw->tw_nid, VS_WATCH_P | VS_IDENT))
+                               continue;
+                       if (tw->tw_family != st->family)
                                continue;
-                       }
                        rc = tw;
                        goto out;
                }
@@ -2085,7 +2103,8 @@ static void *established_get_next(struct
                tw = cur;
                tw = tw_next(tw);
 get_tw:
-               while (tw && tw->tw_family != st->family) {
+               while (tw && (tw->tw_family != st->family ||
+                       !nx_check(tw->tw_nid, VS_WATCH_P | VS_IDENT))) {
                        tw = tw_next(tw);
                }
                if (tw) {
@@ -2109,6 +2128,11 @@ get_tw:
                sk = sk_next(sk);
 
        sk_for_each_from(sk, node) {
+               vxdprintk(VXD_CBIT(net, 6),
+                       "sk,egn: %p [#%d] (from %d)",
+                       sk, sk->sk_nid, nx_current_nid());
+               if (!nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
+                       continue;
                if (sk->sk_family == st->family)
                        goto found;
        }
@@ -2284,9 +2308,9 @@ static void get_openreq4(struct sock *sk
        sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X"
                " %02X %08X:%08X %02X:%08lX %08X %5d %8d %u %d %p",
                i,
-               ireq->loc_addr,
+               nx_map_sock_lback(current_nx_info(), ireq->loc_addr),
                ntohs(inet_sk(sk)->sport),
-               ireq->rmt_addr,
+               nx_map_sock_lback(current_nx_info(), ireq->rmt_addr),
                ntohs(ireq->rmt_port),
                TCP_SYN_RECV,
                0, 0, /* could print option size, but that is af dependent. */
@@ -2328,7 +2352,10 @@ static void get_tcp4_sock(struct sock *s
 
        sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX "
                        "%08X %5d %8d %lu %d %p %u %u %u %u %d",
-               i, src, srcp, dest, destp, sk->sk_state,
+               i,
+               nx_map_sock_lback(current_nx_info(), src), srcp,
+               nx_map_sock_lback(current_nx_info(), dest), destp,
+               sk->sk_state,
                tp->write_seq - tp->snd_una,
                sk->sk_state == TCP_LISTEN ? sk->sk_ack_backlog :
                                             (tp->rcv_nxt - tp->copied_seq),
@@ -2363,7 +2390,10 @@ static void get_timewait4_sock(struct in
 
        sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X"
                " %02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %p",
-               i, src, srcp, dest, destp, tw->tw_substate, 0, 0,
+               i,
+               nx_map_sock_lback(current_nx_info(), src), srcp,
+               nx_map_sock_lback(current_nx_info(), dest), destp,
+               tw->tw_substate, 0, 0,
                3, jiffies_to_clock_t(ttd), 0, 0, 0, 0,
                atomic_read(&tw->tw_refcnt), tw);
 }
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/tcp_minisocks.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/tcp_minisocks.c
--- linux-2.6.22.10/net/ipv4/tcp_minisocks.c    2007-07-09 13:20:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/tcp_minisocks.c 2007-08-05 20:53:13 +0200
@@ -28,6 +28,10 @@
 #include <net/inet_common.h>
 #include <net/xfrm.h>
 
+#include <linux/vs_limit.h>
+#include <linux/vs_socket.h>
+#include <linux/vs_context.h>
+
 #ifdef CONFIG_SYSCTL
 #define SYNC_INIT 0 /* let the user enable it */
 #else
@@ -293,6 +297,11 @@ void tcp_time_wait(struct sock *sk, int 
                tcptw->tw_ts_recent     = tp->rx_opt.ts_recent;
                tcptw->tw_ts_recent_stamp = tp->rx_opt.ts_recent_stamp;
 
+               tw->tw_xid              = sk->sk_xid;
+               tw->tw_vx_info          = NULL;
+               tw->tw_nid              = sk->sk_nid;
+               tw->tw_nx_info          = NULL;
+
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
                if (tw->tw_family == PF_INET6) {
                        struct ipv6_pinfo *np = inet6_sk(sk);
diff -NurpP --minimal linux-2.6.22.10/net/ipv4/udp.c linux-2.6.22.10-vs2.3.0.29/net/ipv4/udp.c
--- linux-2.6.22.10/net/ipv4/udp.c      2007-07-09 13:20:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv4/udp.c   2007-10-09 14:09:19 +0200
@@ -219,14 +219,7 @@ int udp_get_port(struct sock *sk, unsign
        return  __udp_lib_get_port(sk, snum, udp_hash, &udp_port_rover, scmp);
 }
 
-int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2)
-{
-       struct inet_sock *inet1 = inet_sk(sk1), *inet2 = inet_sk(sk2);
-
-       return  ( !ipv6_only_sock(sk2)  &&
-                 (!inet1->rcv_saddr || !inet2->rcv_saddr ||
-                  inet1->rcv_saddr == inet2->rcv_saddr      ));
-}
+extern int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2);
 
 static inline int udp_v4_get_port(struct sock *sk, unsigned short snum)
 {
@@ -246,15 +239,22 @@ static struct sock *__udp4_lib_lookup(__
        int badness = -1;
 
        read_lock(&udp_hash_lock);
+
        sk_for_each(sk, node, &udptable[hnum & (UDP_HTABLE_SIZE - 1)]) {
                struct inet_sock *inet = inet_sk(sk);
 
                if (sk->sk_hash == hnum && !ipv6_only_sock(sk)) {
                        int score = (sk->sk_family == PF_INET ? 1 : 0);
+
                        if (inet->rcv_saddr) {
                                if (inet->rcv_saddr != daddr)
                                        continue;
                                score+=2;
+                       } else {
+                               /* block non nx_info ips */
+                               if (!v4_addr_in_nx_info(sk->sk_nx_info,
+                                       daddr, NXA_MASK_BIND))
+                                       continue;
                        }
                        if (inet->daddr) {
                                if (inet->daddr != saddr)
@@ -280,6 +280,7 @@ static struct sock *__udp4_lib_lookup(__
                        }
                }
        }
+
        if (result)
                sock_hold(result);
        read_unlock(&udp_hash_lock);
@@ -301,7 +302,7 @@ static inline struct sock *udp_v4_mcast_
                if (s->sk_hash != hnum                                  ||
                    (inet->daddr && inet->daddr != rmt_addr)            ||
                    (inet->dport != rmt_port && inet->dport)            ||
-                   (inet->rcv_saddr && inet->rcv_saddr != loc_addr)    ||
+                   !v4_sock_addr_match(sk->sk_nx_info, inet, loc_addr) ||
                    ipv6_only_sock(s)                                   ||
                    (s->sk_bound_dev_if && s->sk_bound_dev_if != dif))
                        continue;
@@ -631,7 +632,14 @@ int udp_sendmsg(struct kiocb *iocb, stru
                                    .uli_u = { .ports =
                                               { .sport = inet->sport,
                                                 .dport = dport } } };
+               struct nx_info *nxi = sk->sk_nx_info;
+
                security_sk_classify_flow(sk, &fl);
+
+               err = ip_v4_find_src(nxi, &rt, &fl);
+               if (err)
+                       goto out;
+
                err = ip_route_output_flow(&rt, &fl, sk, 1);
                if (err) {
                        if (err == -ENETUNREACH)
@@ -871,7 +879,8 @@ try_again:
        {
                sin->sin_family = AF_INET;
                sin->sin_port = udp_hdr(skb)->source;
-               sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
+               sin->sin_addr.s_addr = nx_map_sock_lback(
+                       skb->sk->sk_nx_info, ip_hdr(skb)->saddr);
                memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
        }
        if (inet->cmsg_flags)
@@ -1551,7 +1560,8 @@ static struct sock *udp_get_first(struct
        for (state->bucket = 0; state->bucket < UDP_HTABLE_SIZE; ++state->bucket) {
                struct hlist_node *node;
                sk_for_each(sk, node, state->hashtable + state->bucket) {
-                       if (sk->sk_family == state->family)
+                       if (sk->sk_family == state->family &&
+                               nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT))
                                goto found;
                }
        }
@@ -1568,7 +1578,8 @@ static struct sock *udp_get_next(struct 
                sk = sk_next(sk);
 try_again:
                ;
-       } while (sk && sk->sk_family != state->family);
+       } while (sk && (sk->sk_family != state->family ||
+               !nx_check(sk->sk_nid, VS_WATCH_P | VS_IDENT)));
 
        if (!sk && ++state->bucket < UDP_HTABLE_SIZE) {
                sk = sk_head(state->hashtable + state->bucket);
@@ -1681,7 +1692,10 @@ static void udp4_format_sock(struct sock
 
        sprintf(tmpbuf, "%4d: %08X:%04X %08X:%04X"
                " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p",
-               bucket, src, srcp, dest, destp, sp->sk_state,
+               bucket,
+               nx_map_sock_lback(current_nx_info(), src), srcp,
+               nx_map_sock_lback(current_nx_info(), dest), destp,
+               sp->sk_state,
                atomic_read(&sp->sk_wmem_alloc),
                atomic_read(&sp->sk_rmem_alloc),
                0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/Kconfig linux-2.6.22.10-vs2.3.0.29/net/ipv6/Kconfig
--- linux-2.6.22.10/net/ipv6/Kconfig    2007-07-09 13:20:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/Kconfig 2007-08-05 20:53:13 +0200
@@ -4,8 +4,8 @@
 
 #   IPv6 as module will cause a CRASH if you try to unload it
 config IPV6
-       tristate "The IPv6 protocol"
-       default m
+       bool "The IPv6 protocol"
+       default n
        ---help---
          This is complemental support for the IP version 6.
          You will still be able to do traditional IPv4 networking as well.
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/addrconf.c linux-2.6.22.10-vs2.3.0.29/net/ipv6/addrconf.c
--- linux-2.6.22.10/net/ipv6/addrconf.c 2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/addrconf.c      2007-10-05 14:54:36 +0200
@@ -85,6 +85,7 @@
 
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/vs_inet6.h>
 
 /* Set to 3 to get tracing... */
 #define ACONF_DEBUG 2
@@ -897,7 +898,8 @@ static inline int ipv6_saddr_label(const
 }
 
 int ipv6_dev_get_saddr(struct net_device *daddr_dev,
-                      struct in6_addr *daddr, struct in6_addr *saddr)
+                      struct in6_addr *daddr, struct in6_addr *saddr,
+                      struct nx_info *nxi)
 {
        struct ipv6_saddr_score hiscore;
        struct inet6_ifaddr *ifa_result = NULL;
@@ -942,6 +944,10 @@ int ipv6_dev_get_saddr(struct net_device
 
                        score.addr_type = __ipv6_addr_type(&ifa->addr);
 
+                       /* Use only addresses assigned to the context */
+                       if (!v6_ifa_in_nx_info(ifa, nxi))
+                               continue;
+
                        /* Rule 0:
                         * - Tentative Address (RFC2462 section 5.4)
                         *  - A tentative address is not considered
@@ -1155,9 +1161,10 @@ record_it:
 
 
 int ipv6_get_saddr(struct dst_entry *dst,
-                  struct in6_addr *daddr, struct in6_addr *saddr)
+                  struct in6_addr *daddr, struct in6_addr *saddr,
+                  struct nx_info *nxi)
 {
-       return ipv6_dev_get_saddr(dst ? ip6_dst_idev(dst)->dev : NULL, daddr, saddr);
+       return ipv6_dev_get_saddr(dst ? ip6_dst_idev(dst)->dev : NULL, daddr, saddr, nxi);
 }
 
 EXPORT_SYMBOL(ipv6_get_saddr);
@@ -1253,35 +1260,46 @@ struct inet6_ifaddr * ipv6_get_ifaddr(st
        return ifp;
 }
 
+extern int ipv4_rcv_saddr_equal(const struct sock *sk1, const struct sock *sk2);
+
 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
 {
        const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr;
        const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
-       __be32 sk_rcv_saddr = inet_sk(sk)->rcv_saddr;
        __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
        int sk_ipv6only = ipv6_only_sock(sk);
        int sk2_ipv6only = inet_v6_ipv6only(sk2);
        int addr_type = ipv6_addr_type(sk_rcv_saddr6);
        int addr_type2 = sk2_rcv_saddr6 ? ipv6_addr_type(sk2_rcv_saddr6) : IPV6_ADDR_MAPPED;
 
-       if (!sk2_rcv_saddr && !sk_ipv6only)
+       /* FIXME: needs handling for v4 ANY */
+       if (!sk2_rcv_saddr && !sk_ipv6only && !sk2->sk_nx_info)
                return 1;
 
        if (addr_type2 == IPV6_ADDR_ANY &&
-           !(sk2_ipv6only && addr_type == IPV6_ADDR_MAPPED))
+           !(sk2_ipv6only && addr_type == IPV6_ADDR_MAPPED) &&
+           v6_addr_in_nx_info(sk2->sk_nx_info, sk_rcv_saddr6, -1))
                return 1;
 
        if (addr_type == IPV6_ADDR_ANY &&
-           !(sk_ipv6only && addr_type2 == IPV6_ADDR_MAPPED))
+           !(sk_ipv6only && addr_type2 == IPV6_ADDR_MAPPED) &&
+           (sk2_rcv_saddr6 && v6_addr_in_nx_info(sk->sk_nx_info, sk2_rcv_saddr6, -1)))
+               return 1;
+
+       if (addr_type == IPV6_ADDR_ANY &&
+           addr_type2 == IPV6_ADDR_ANY &&
+           nx_v6_addr_conflict(sk->sk_nx_info, sk2->sk_nx_info))
                return 1;
 
        if (sk2_rcv_saddr6 &&
+           addr_type != IPV6_ADDR_ANY &&
+           addr_type != IPV6_ADDR_ANY &&
            ipv6_addr_equal(sk_rcv_saddr6, sk2_rcv_saddr6))
                return 1;
 
        if (addr_type == IPV6_ADDR_MAPPED &&
            !sk2_ipv6only &&
-           (!sk2_rcv_saddr || !sk_rcv_saddr || sk_rcv_saddr == sk2_rcv_saddr))
+           ipv4_rcv_saddr_equal(sk, sk2))
                return 1;
 
        return 0;
@@ -2772,7 +2790,10 @@ static void if6_seq_stop(struct seq_file
 static int if6_seq_show(struct seq_file *seq, void *v)
 {
        struct inet6_ifaddr *ifp = (struct inet6_ifaddr *)v;
-       seq_printf(seq,
+
+       if (nx_check(0, VS_ADMIN|VS_WATCH) ||
+           v6_addr_in_nx_info(current_nx_info(), &ifp->addr, -1))
+               seq_printf(seq,
                   NIP6_SEQFMT " %02x %02x %02x %02x %8s\n",
                   NIP6(ifp->addr),
                   ifp->idev->dev->ifindex,
@@ -3254,6 +3275,11 @@ static int inet6_dump_addr(struct sk_buf
        struct inet6_ifaddr *ifa;
        struct ifmcaddr6 *ifmca;
        struct ifacaddr6 *ifaca;
+       struct nx_info *nxi = skb->sk ? skb->sk->sk_nx_info : NULL;
+
+       /* disable ipv6 on non v6 guests */
+       if (nxi && !nx_info_has_v6(nxi))
+               return skb->len;
 
        s_idx = cb->args[0];
        s_ip_idx = ip_idx = cb->args[1];
@@ -3275,6 +3301,8 @@ static int inet6_dump_addr(struct sk_buf
                             ifa = ifa->if_next, ip_idx++) {
                                if (ip_idx < s_ip_idx)
                                        continue;
+                               if (!v6_addr_in_nx_info(nxi, &ifa->addr, -1))
+                                       continue;
                                if ((err = inet6_fill_ifaddr(skb, ifa,
                                    NETLINK_CB(cb->skb).pid,
                                    cb->nlh->nlmsg_seq, RTM_NEWADDR,
@@ -3288,6 +3316,8 @@ static int inet6_dump_addr(struct sk_buf
                             ifmca = ifmca->next, ip_idx++) {
                                if (ip_idx < s_ip_idx)
                                        continue;
+                               if (!v6_addr_in_nx_info(nxi, &ifmca->mca_addr, -1))
+                                       continue;
                                if ((err = inet6_fill_ifmcaddr(skb, ifmca,
                                    NETLINK_CB(cb->skb).pid,
                                    cb->nlh->nlmsg_seq, RTM_GETMULTICAST,
@@ -3301,6 +3331,8 @@ static int inet6_dump_addr(struct sk_buf
                             ifaca = ifaca->aca_next, ip_idx++) {
                                if (ip_idx < s_ip_idx)
                                        continue;
+                               if (!v6_addr_in_nx_info(nxi, &ifaca->aca_addr, -1))
+                                       continue;
                                if ((err = inet6_fill_ifacaddr(skb, ifaca,
                                    NETLINK_CB(cb->skb).pid,
                                    cb->nlh->nlmsg_seq, RTM_GETANYCAST,
@@ -3577,12 +3609,19 @@ static int inet6_dump_ifinfo(struct sk_b
        int s_idx = cb->args[0];
        struct net_device *dev;
        struct inet6_dev *idev;
+       struct nx_info *nxi = skb->sk ? skb->sk->sk_nx_info : NULL;
+
+       /* FIXME: maybe disable ipv6 on non v6 guests?
+       if (skb->sk && skb->sk->sk_vx_info)
+               return skb->len;        */
 
        read_lock(&dev_base_lock);
        idx = 0;
        for_each_netdev(dev) {
                if (idx < s_idx)
                        goto cont;
+               if (!v6_dev_in_nx_info(dev, nxi))
+                       goto cont;
                if ((idev = in6_dev_get(dev)) == NULL)
                        goto cont;
                err = inet6_fill_ifinfo(skb, idev, NETLINK_CB(cb->skb).pid,
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/af_inet6.c linux-2.6.22.10-vs2.3.0.29/net/ipv6/af_inet6.c
--- linux-2.6.22.10/net/ipv6/af_inet6.c 2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/af_inet6.c      2007-10-05 12:29:05 +0200
@@ -43,6 +43,7 @@
 #include <linux/netdevice.h>
 #include <linux/icmpv6.h>
 #include <linux/netfilter_ipv6.h>
+#include <linux/vs_inet6.h>
 
 #include <net/ip.h>
 #include <net/ipv6.h>
@@ -150,9 +151,12 @@ lookup_protocol:
        }
 
        err = -EPERM;
+       if ((protocol == IPPROTO_ICMPV6) &&
+               nx_capable(answer->capability, NXC_RAW_ICMP))
+               goto override;
        if (answer->capability > 0 && !capable(answer->capability))
                goto out_rcu_unlock;
-
+override:
        sock->ops = answer->ops;
        answer_prot = answer->prot;
        answer_no_check = answer->no_check;
@@ -250,6 +254,7 @@ int inet6_bind(struct socket *sock, stru
        struct sock *sk = sock->sk;
        struct inet_sock *inet = inet_sk(sk);
        struct ipv6_pinfo *np = inet6_sk(sk);
+       struct nx_v6_sock_addr nsa;
        __be32 v4addr = 0;
        unsigned short snum;
        int addr_type = 0;
@@ -261,6 +266,11 @@ int inet6_bind(struct socket *sock, stru
 
        if (addr_len < SIN6_LEN_RFC2133)
                return -EINVAL;
+
+       err = v6_map_sock_addr(inet, addr, &nsa);
+       if (err)
+               return err;
+
        addr_type = ipv6_addr_type(&addr->sin6_addr);
        if ((addr_type & IPV6_ADDR_MULTICAST) && sock->type == SOCK_STREAM)
                return -EINVAL;
@@ -284,6 +294,10 @@ int inet6_bind(struct socket *sock, stru
                        err = -EADDRNOTAVAIL;
                        goto out;
                }
+               if (!v4_addr_in_nx_info(sk->sk_nx_info, v4addr, NXA_MASK_BIND)) {
+                       err = -EADDRNOTAVAIL;
+                       goto out;
+               }
        } else {
                if (addr_type != IPV6_ADDR_ANY) {
                        struct net_device *dev = NULL;
@@ -309,6 +323,11 @@ int inet6_bind(struct socket *sock, stru
                                }
                        }
 
+                       if (!v6_addr_in_nx_info(sk->sk_nx_info, &addr->sin6_addr, -1)) {
+                               err = -EADDRNOTAVAIL;
+                               goto out;
+                       }
+
                        /* ipv4 addr of the socket is invalid.  Only the
                         * unspecified and mapped address have a v4 equivalent.
                         */
@@ -326,6 +345,8 @@ int inet6_bind(struct socket *sock, stru
                }
        }
 
+       v6_set_sock_addr(inet, &nsa);
+
        inet->rcv_saddr = v4addr;
        inet->saddr = v4addr;
 
@@ -420,9 +441,11 @@ int inet6_getname(struct socket *sock, s
                        return -ENOTCONN;
                sin->sin6_port = inet->dport;
                ipv6_addr_copy(&sin->sin6_addr, &np->daddr);
+               /* FIXME: remap lback? */
                if (np->sndflow)
                        sin->sin6_flowinfo = np->flow_label;
        } else {
+               /* FIXME: remap lback? */
                if (ipv6_addr_any(&np->rcv_saddr))
                        ipv6_addr_copy(&sin->sin6_addr, &np->saddr);
                else
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/fib6_rules.c linux-2.6.22.10-vs2.3.0.29/net/ipv6/fib6_rules.c
--- linux-2.6.22.10/net/ipv6/fib6_rules.c       2007-07-09 13:20:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/fib6_rules.c    2007-08-12 00:22:19 +0200
@@ -107,7 +107,7 @@ static int fib6_rule_action(struct fib_r
                    r->src.plen && !(flags & RT6_LOOKUP_F_HAS_SADDR)) {
                        struct in6_addr saddr;
                        if (ipv6_get_saddr(&rt->u.dst, &flp->fl6_dst,
-                                          &saddr))
+                                          &saddr, NULL))
                                goto again;
                        if (!ipv6_prefix_equal(&saddr, &r->src.addr,
                                               r->src.plen))
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/inet6_hashtables.c linux-2.6.22.10-vs2.3.0.29/net/ipv6/inet6_hashtables.c
--- linux-2.6.22.10/net/ipv6/inet6_hashtables.c 2007-05-02 19:25:45 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/inet6_hashtables.c      2007-08-05 20:53:13 +0200
@@ -16,6 +16,7 @@
 
 #include <linux/module.h>
 #include <linux/random.h>
+#include <linux/vs_inet6.h>
 
 #include <net/inet_connection_sock.h>
 #include <net/inet_hashtables.h>
@@ -121,6 +122,9 @@ struct sock *inet6_lookup_listener(struc
                                if (!ipv6_addr_equal(&np->rcv_saddr, daddr))
                                        continue;
                                score++;
+                       } else {
+                               if (!v6_addr_in_nx_info(sk->sk_nx_info, daddr, -1))
+                                       continue;
                        }
                        if (sk->sk_bound_dev_if) {
                                if (sk->sk_bound_dev_if != dif)
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/ip6_output.c linux-2.6.22.10-vs2.3.0.29/net/ipv6/ip6_output.c
--- linux-2.6.22.10/net/ipv6/ip6_output.c       2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/ip6_output.c    2007-09-30 14:58:01 +0200
@@ -884,7 +884,7 @@ static int ip6_dst_lookup_tail(struct so
                goto out_err_release;
 
        if (ipv6_addr_any(&fl->fl6_src)) {
-               err = ipv6_get_saddr(*dst, &fl->fl6_dst, &fl->fl6_src);
+               err = ipv6_get_saddr(*dst, &fl->fl6_dst, &fl->fl6_src, sk->sk_nx_info);
                if (err)
                        goto out_err_release;
        }
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/ndisc.c linux-2.6.22.10-vs2.3.0.29/net/ipv6/ndisc.c
--- linux-2.6.22.10/net/ipv6/ndisc.c    2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/ndisc.c 2007-09-30 14:58:01 +0200
@@ -531,7 +531,7 @@ static void ndisc_send_na(struct net_dev
                        override = 0;
                in6_ifa_put(ifp);
        } else {
-               if (ipv6_dev_get_saddr(dev, daddr, &tmpaddr))
+               if (ipv6_dev_get_saddr(dev, daddr, &tmpaddr, NULL))
                        return;
                src_addr = &tmpaddr;
        }
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/route.c linux-2.6.22.10-vs2.3.0.29/net/ipv6/route.c
--- linux-2.6.22.10/net/ipv6/route.c    2007-07-09 13:20:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/route.c 2007-08-12 00:22:19 +0200
@@ -2182,7 +2182,7 @@ static int rt6_fill_node(struct sk_buff 
                NLA_PUT_U32(skb, RTA_IIF, iif);
        else if (dst) {
                struct in6_addr saddr_buf;
-               if (ipv6_get_saddr(&rt->u.dst, dst, &saddr_buf) == 0)
+               if (ipv6_get_saddr(&rt->u.dst, dst, &saddr_buf, skb->sk->sk_nx_info) == 0)
                        NLA_PUT(skb, RTA_PREFSRC, 16, &saddr_buf);
        }
 
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/tcp_ipv6.c linux-2.6.22.10-vs2.3.0.29/net/ipv6/tcp_ipv6.c
--- linux-2.6.22.10/net/ipv6/tcp_ipv6.c 2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/tcp_ipv6.c      2007-09-18 12:32:20 +0200
@@ -68,6 +68,7 @@
 
 #include <linux/crypto.h>
 #include <linux/scatterlist.h>
+#include <linux/vs_inet6.h>
 
 /* Socket used for sending RSTs and ACKs */
 static struct socket *tcp6_socket;
@@ -160,8 +161,15 @@ static int tcp_v6_connect(struct sock *s
         *      connect() to INADDR_ANY means loopback (BSD'ism).
         */
 
-       if(ipv6_addr_any(&usin->sin6_addr))
-               usin->sin6_addr.s6_addr[15] = 0x1;
+       if(ipv6_addr_any(&usin->sin6_addr)) {
+               struct nx_info *nxi =  sk->sk_nx_info;
+
+               if (nxi && nx_info_has_v6(nxi))
+                       /* FIXME: remap lback? */
+                       usin->sin6_addr = nxi->v6.ip;
+               else
+                       usin->sin6_addr.s6_addr[15] = 0x1;
+       }
 
        addr_type = ipv6_addr_type(&usin->sin6_addr);
 
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/udp.c linux-2.6.22.10-vs2.3.0.29/net/ipv6/udp.c
--- linux-2.6.22.10/net/ipv6/udp.c      2007-07-09 13:20:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/udp.c   2007-08-12 03:34:32 +0200
@@ -48,6 +48,7 @@
 
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/vs_inet6.h>
 #include "udp_impl.h"
 
 DEFINE_SNMP_STAT(struct udp_mib, udp_stats_in6) __read_mostly;
@@ -82,6 +83,10 @@ static struct sock *__udp6_lib_lookup(st
                                if (!ipv6_addr_equal(&np->rcv_saddr, daddr))
                                        continue;
                                score++;
+                       } else {
+                               /* block non nx_info ips */
+                               if (!v6_addr_in_nx_info(sk->sk_nx_info, daddr, -1))
+                                       continue;
                        }
                        if (!ipv6_addr_any(&np->daddr)) {
                                if (!ipv6_addr_equal(&np->daddr, saddr))
diff -NurpP --minimal linux-2.6.22.10/net/ipv6/xfrm6_policy.c linux-2.6.22.10-vs2.3.0.29/net/ipv6/xfrm6_policy.c
--- linux-2.6.22.10/net/ipv6/xfrm6_policy.c     2007-07-09 13:20:06 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/ipv6/xfrm6_policy.c  2007-08-12 00:22:19 +0200
@@ -49,7 +49,7 @@ static int xfrm6_get_saddr(xfrm_address_
 
        if (!xfrm6_dst_lookup((struct xfrm_dst **)&rt, &fl_tunnel)) {
                ipv6_get_saddr(&rt->u.dst, (struct in6_addr *)&daddr->a6,
-                              (struct in6_addr *)&saddr->a6);
+                              (struct in6_addr *)&saddr->a6, NULL);
                dst_release(&rt->u.dst);
                return 0;
        }
diff -NurpP --minimal linux-2.6.22.10/net/netlink/af_netlink.c linux-2.6.22.10-vs2.3.0.29/net/netlink/af_netlink.c
--- linux-2.6.22.10/net/netlink/af_netlink.c    2007-07-09 13:20:07 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/netlink/af_netlink.c 2007-08-05 20:53:13 +0200
@@ -56,6 +56,9 @@
 #include <linux/audit.h>
 #include <linux/selinux.h>
 #include <linux/mutex.h>
+#include <linux/vs_context.h>
+#include <linux/vs_network.h>
+#include <linux/vs_limit.h>
 
 #include <net/sock.h>
 #include <net/scm.h>
diff -NurpP --minimal linux-2.6.22.10/net/sctp/ipv6.c linux-2.6.22.10-vs2.3.0.29/net/sctp/ipv6.c
--- linux-2.6.22.10/net/sctp/ipv6.c     2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/sctp/ipv6.c  2007-08-12 00:22:19 +0200
@@ -303,7 +303,7 @@ static void sctp_v6_get_saddr(struct sct
                          __FUNCTION__, asoc, dst, NIP6(daddr->v6.sin6_addr));
 
        if (!asoc) {
-               ipv6_get_saddr(dst, &daddr->v6.sin6_addr,&saddr->v6.sin6_addr);
+               ipv6_get_saddr(dst, &daddr->v6.sin6_addr,&saddr->v6.sin6_addr, asoc->base.sk->sk_nx_info);
                SCTP_DEBUG_PRINTK("saddr from ipv6_get_saddr: " NIP6_FMT "\n",
                                  NIP6(saddr->v6.sin6_addr));
                return;
diff -NurpP --minimal linux-2.6.22.10/net/socket.c linux-2.6.22.10-vs2.3.0.29/net/socket.c
--- linux-2.6.22.10/net/socket.c        2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/net/socket.c     2007-09-05 03:06:12 +0200
@@ -92,6 +92,10 @@
 
 #include <net/sock.h>
 #include <linux/netfilter.h>
+#include <linux/vs_base.h>
+#include <linux/vs_socket.h>
+#include <linux/vs_inet.h>
+#include <linux/vs_inet6.h>
 
 static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
 static ssize_t sock_aio_read(struct kiocb *iocb, const struct iovec *iov,
@@ -543,7 +547,7 @@ static inline int __sock_sendmsg(struct 
                                 struct msghdr *msg, size_t size)
 {
        struct sock_iocb *si = kiocb_to_siocb(iocb);
-       int err;
+       int err, len;
 
        si->sock = sock;
        si->scm = NULL;
@@ -554,7 +558,22 @@ static inline int __sock_sendmsg(struct 
        if (err)
                return err;
 
-       return sock->ops->sendmsg(iocb, sock, msg, size);
+       len = sock->ops->sendmsg(iocb, sock, msg, size);
+       if (sock->sk) {
+               if (len == size)
+                       vx_sock_send(sock->sk, size);
+               else
+                       vx_sock_fail(sock->sk, size);
+       }
+       vxdprintk(VXD_CBIT(net, 7),
+               "__sock_sendmsg: %p[%p,%p,%p;%d/%d]:%d/%d",
+               sock, sock->sk,
+               (sock->sk)?sock->sk->sk_nx_info:0,
+               (sock->sk)?sock->sk->sk_vx_info:0,
+               (sock->sk)?sock->sk->sk_xid:0,
+               (sock->sk)?sock->sk->sk_nid:0,
+               (unsigned int)size, len);
+       return len;
 }
 
 int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
@@ -623,7 +642,7 @@ EXPORT_SYMBOL_GPL(__sock_recv_timestamp)
 static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock,
                                 struct msghdr *msg, size_t size, int flags)
 {
-       int err;
+       int err, len;
        struct sock_iocb *si = kiocb_to_siocb(iocb);
 
        si->sock = sock;
@@ -636,7 +655,18 @@ static inline int __sock_recvmsg(struct 
        if (err)
                return err;
 
-       return sock->ops->recvmsg(iocb, sock, msg, size, flags);
+       len = sock->ops->recvmsg(iocb, sock, msg, size, flags);
+       if ((len >= 0) && sock->sk)
+               vx_sock_recv(sock->sk, len);
+       vxdprintk(VXD_CBIT(net, 7),
+               "__sock_recvmsg: %p[%p,%p,%p;%d/%d]:%d/%d",
+               sock, sock->sk,
+               (sock->sk)?sock->sk->sk_nx_info:0,
+               (sock->sk)?sock->sk->sk_vx_info:0,
+               (sock->sk)?sock->sk->sk_xid:0,
+               (sock->sk)?sock->sk->sk_nid:0,
+               (unsigned int)size, len);
+       return len;
 }
 
 int sock_recvmsg(struct socket *sock, struct msghdr *msg,
@@ -1090,6 +1120,13 @@ static int __sock_create(int family, int
        if (type < 0 || type >= SOCK_MAX)
                return -EINVAL;
 
+       if (!nx_check(0, VS_ADMIN)) {
+               if (family == PF_INET && !current_nx_info_has_v4())
+                       return -EAFNOSUPPORT;
+               if (family == PF_INET6 && !current_nx_info_has_v6())
+                       return -EAFNOSUPPORT;
+       }
+
        /* Compatibility.
 
           This uglymoron is moved from INET layer to here to avoid
@@ -1207,6 +1244,7 @@ asmlinkage long sys_socket(int family, i
        if (retval < 0)
                goto out;
 
+       set_bit(SOCK_USER_SOCKET, &sock->flags);
        retval = sock_map_fd(sock);
        if (retval < 0)
                goto out_release;
@@ -1239,10 +1277,12 @@ asmlinkage long sys_socketpair(int famil
        err = sock_create(family, type, protocol, &sock1);
        if (err < 0)
                goto out;
+       set_bit(SOCK_USER_SOCKET, &sock1->flags);
 
        err = sock_create(family, type, protocol, &sock2);
        if (err < 0)
                goto out_release_1;
+       set_bit(SOCK_USER_SOCKET, &sock2->flags);
 
        err = sock1->ops->socketpair(sock1, sock2);
        if (err < 0)
diff -NurpP --minimal linux-2.6.22.10/net/sunrpc/auth.c linux-2.6.22.10-vs2.3.0.29/net/sunrpc/auth.c
--- linux-2.6.22.10/net/sunrpc/auth.c   2007-05-02 19:25:48 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/sunrpc/auth.c        2007-08-05 20:53:13 +0200
@@ -13,6 +13,7 @@
 #include <linux/errno.h>
 #include <linux/sunrpc/clnt.h>
 #include <linux/spinlock.h>
+#include <linux/vs_tag.h>
 
 #ifdef RPC_DEBUG
 # define RPCDBG_FACILITY       RPCDBG_AUTH
@@ -263,6 +264,7 @@ rpcauth_lookupcred(struct rpc_auth *auth
        struct auth_cred acred = {
                .uid = current->fsuid,
                .gid = current->fsgid,
+               .tag = dx_current_tag(),
                .group_info = current->group_info,
        };
        struct rpc_cred *ret;
@@ -282,6 +284,7 @@ rpcauth_bindcred(struct rpc_task *task)
        struct auth_cred acred = {
                .uid = current->fsuid,
                .gid = current->fsgid,
+               .tag = dx_current_tag(),
                .group_info = current->group_info,
        };
        struct rpc_cred *ret;
diff -NurpP --minimal linux-2.6.22.10/net/sunrpc/auth_unix.c linux-2.6.22.10-vs2.3.0.29/net/sunrpc/auth_unix.c
--- linux-2.6.22.10/net/sunrpc/auth_unix.c      2007-05-02 19:25:48 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/sunrpc/auth_unix.c   2007-08-05 20:53:13 +0200
@@ -11,12 +11,14 @@
 #include <linux/module.h>
 #include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/auth.h>
+#include <linux/vs_tag.h>
 
 #define NFS_NGROUPS    16
 
 struct unx_cred {
        struct rpc_cred         uc_base;
        gid_t                   uc_gid;
+       tag_t                   uc_tag;
        gid_t                   uc_gids[NFS_NGROUPS];
 };
 #define uc_uid                 uc_base.cr_uid
@@ -79,6 +81,7 @@ unx_create_cred(struct rpc_auth *auth, s
        if (flags & RPCAUTH_LOOKUP_ROOTCREDS) {
                cred->uc_uid = 0;
                cred->uc_gid = 0;
+               cred->uc_tag = dx_current_tag();
                cred->uc_gids[0] = NOGROUP;
        } else {
                int groups = acred->group_info->ngroups;
@@ -87,6 +90,7 @@ unx_create_cred(struct rpc_auth *auth, s
 
                cred->uc_uid = acred->uid;
                cred->uc_gid = acred->gid;
+               cred->uc_tag = acred->tag;
                for (i = 0; i < groups; i++)
                        cred->uc_gids[i] = GROUP_AT(acred->group_info, i);
                if (i < NFS_NGROUPS)
@@ -118,7 +122,8 @@ unx_match(struct auth_cred *acred, struc
                int groups;
 
                if (cred->uc_uid != acred->uid
-                || cred->uc_gid != acred->gid)
+                || cred->uc_gid != acred->gid
+                || cred->uc_tag != acred->tag)
                        return 0;
 
                groups = acred->group_info->ngroups;
@@ -144,7 +149,7 @@ unx_marshal(struct rpc_task *task, __be3
        struct rpc_clnt *clnt = task->tk_client;
        struct unx_cred *cred = (struct unx_cred *) task->tk_msg.rpc_cred;
        __be32          *base, *hold;
-       int             i;
+       int             i, tag;
 
        *p++ = htonl(RPC_AUTH_UNIX);
        base = p++;
@@ -154,9 +159,12 @@ unx_marshal(struct rpc_task *task, __be3
         * Copy the UTS nodename captured when the client was created.
         */
        p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen);
+       tag = task->tk_client->cl_tag;
 
-       *p++ = htonl((u32) cred->uc_uid);
-       *p++ = htonl((u32) cred->uc_gid);
+       *p++ = htonl((u32) TAGINO_UID(tag,
+               cred->uc_uid, cred->uc_tag));
+       *p++ = htonl((u32) TAGINO_GID(tag,
+               cred->uc_gid, cred->uc_tag));
        hold = p++;
        for (i = 0; i < 16 && cred->uc_gids[i] != (gid_t) NOGROUP; i++)
                *p++ = htonl((u32) cred->uc_gids[i]);
diff -NurpP --minimal linux-2.6.22.10/net/sunrpc/clnt.c linux-2.6.22.10-vs2.3.0.29/net/sunrpc/clnt.c
--- linux-2.6.22.10/net/sunrpc/clnt.c   2007-07-09 13:20:13 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/sunrpc/clnt.c        2007-08-05 20:53:13 +0200
@@ -30,6 +30,7 @@
 #include <linux/smp_lock.h>
 #include <linux/utsname.h>
 #include <linux/workqueue.h>
+#include <linux/vs_cvirt.h>
 
 #include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/rpc_pipe_fs.h>
@@ -249,7 +250,9 @@ struct rpc_clnt *rpc_create(struct rpc_c
                clnt->cl_oneshot = 1;
        if (args->flags & RPC_CLNT_CREATE_DISCRTRY)
                clnt->cl_discrtry = 1;
-
+       /* TODO: handle RPC_CLNT_CREATE_TAGGED
+       if (args->flags & RPC_CLNT_CREATE_TAGGED)
+               clnt->cl_tag = 1; */
        return clnt;
 }
 EXPORT_SYMBOL_GPL(rpc_create);
diff -NurpP --minimal linux-2.6.22.10/net/unix/af_unix.c linux-2.6.22.10-vs2.3.0.29/net/unix/af_unix.c
--- linux-2.6.22.10/net/unix/af_unix.c  2007-07-09 13:20:13 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/unix/af_unix.c       2007-08-05 20:53:13 +0200
@@ -115,6 +115,8 @@
 #include <linux/mount.h>
 #include <net/checksum.h>
 #include <linux/security.h>
+#include <linux/vs_context.h>
+#include <linux/vs_limit.h>
 
 int sysctl_unix_max_dgram_qlen __read_mostly = 10;
 
@@ -252,6 +254,8 @@ static struct sock *__unix_find_socket_b
        sk_for_each(s, node, &unix_socket_table[hash ^ type]) {
                struct unix_sock *u = unix_sk(s);
 
+               if (!nx_check(s->sk_nid, VS_WATCH_P | VS_IDENT))
+                       continue;
                if (u->addr->len == len &&
                    !memcmp(u->addr->name, sunname, len))
                        goto found;
@@ -807,7 +811,7 @@ static int unix_bind(struct socket *sock
                 */
                mode = S_IFSOCK |
                       (SOCK_INODE(sock)->i_mode & ~current->fs->umask);
-               err = vfs_mknod(nd.dentry->d_inode, dentry, mode, 0);
+               err = vfs_mknod(nd.dentry->d_inode, dentry, mode, 0, NULL);
                if (err)
                        goto out_mknod_dput;
                mutex_unlock(&nd.dentry->d_inode->i_mutex);
diff -NurpP --minimal linux-2.6.22.10/net/x25/af_x25.c linux-2.6.22.10-vs2.3.0.29/net/x25/af_x25.c
--- linux-2.6.22.10/net/x25/af_x25.c    2007-07-09 13:20:13 +0200
+++ linux-2.6.22.10-vs2.3.0.29/net/x25/af_x25.c 2007-08-05 20:53:13 +0200
@@ -500,7 +500,10 @@ static int x25_create(struct socket *soc
 
        x25 = x25_sk(sk);
 
-       sock_init_data(sock, sk);
+       sk->sk_socket = sock;
+       sk->sk_type = sock->type;
+       sk->sk_sleep = &sock->wait;
+       sock->sk = sk;
 
        x25_init_timers(sk);
 
diff -NurpP --minimal linux-2.6.22.10/security/Kconfig linux-2.6.22.10-vs2.3.0.29/security/Kconfig
--- linux-2.6.22.10/security/Kconfig    2006-11-30 21:19:47 +0100
+++ linux-2.6.22.10-vs2.3.0.29/security/Kconfig 2007-08-05 20:53:13 +0200
@@ -6,6 +6,7 @@ menu "Security options"
 
 config KEYS
        bool "Enable access key retention support"
+       depends on !VSERVER_SECURITY
        help
          This option provides support for retaining authentication tokens and
          access keys in the kernel.
diff -NurpP --minimal linux-2.6.22.10/security/commoncap.c linux-2.6.22.10-vs2.3.0.29/security/commoncap.c
--- linux-2.6.22.10/security/commoncap.c        2007-07-09 13:20:14 +0200
+++ linux-2.6.22.10-vs2.3.0.29/security/commoncap.c     2007-08-05 20:53:13 +0200
@@ -22,10 +22,11 @@
 #include <linux/ptrace.h>
 #include <linux/xattr.h>
 #include <linux/hugetlb.h>
+#include <linux/vs_context.h>
 
 int cap_netlink_send(struct sock *sk, struct sk_buff *skb)
 {
-       NETLINK_CB(skb).eff_cap = current->cap_effective;
+       cap_t(NETLINK_CB(skb).eff_cap) = vx_mbcap(cap_effective);
        return 0;
 }
 
@@ -43,7 +44,7 @@ EXPORT_SYMBOL(cap_netlink_recv);
 int cap_capable (struct task_struct *tsk, int cap)
 {
        /* Derived from include/linux/sched.h:capable. */
-       if (cap_raised(tsk->cap_effective, cap))
+       if (vx_cap_raised(tsk->vx_info, tsk->cap_effective, cap))
                return 0;
        return -EPERM;
 }
@@ -141,7 +142,8 @@ void cap_bprm_apply_creds (struct linux_
        /* Derived from fs/exec.c:compute_creds. */
        kernel_cap_t new_permitted, working;
 
-       new_permitted = cap_intersect (bprm->cap_permitted, cap_bset);
+       new_permitted = cap_intersect (bprm->cap_permitted,
+                                       vx_current_cap_bset());
        working = cap_intersect (bprm->cap_inheritable,
                                 current->cap_inheritable);
        new_permitted = cap_combine (new_permitted, working);
@@ -310,7 +312,8 @@ void cap_task_reparent_to_init (struct t
 
 int cap_syslog (int type)
 {
-       if ((type != 3 && type != 10) && !capable(CAP_SYS_ADMIN))
+       if ((type != 3 && type != 10) &&
+               !vx_capable(CAP_SYS_ADMIN, VXC_SYSLOG))
                return -EPERM;
        return 0;
 }
diff -NurpP --minimal linux-2.6.22.10/security/dummy.c linux-2.6.22.10-vs2.3.0.29/security/dummy.c
--- linux-2.6.22.10/security/dummy.c    2007-05-02 19:25:51 +0200
+++ linux-2.6.22.10-vs2.3.0.29/security/dummy.c 2007-08-05 20:53:13 +0200
@@ -28,6 +28,7 @@
 #include <linux/hugetlb.h>
 #include <linux/ptrace.h>
 #include <linux/file.h>
+#include <linux/vs_context.h>
 
 static int dummy_ptrace (struct task_struct *parent, struct task_struct *child)
 {
@@ -678,7 +679,7 @@ static int dummy_sem_semop (struct sem_a
 
 static int dummy_netlink_send (struct sock *sk, struct sk_buff *skb)
 {
-       NETLINK_CB(skb).eff_cap = current->cap_effective;
+       cap_t(NETLINK_CB(skb).eff_cap) = vx_mbcap(cap_effective);
        return 0;
 }
 
diff -NurpP --minimal linux-2.6.22.10/security/selinux/hooks.c linux-2.6.22.10-vs2.3.0.29/security/selinux/hooks.c
--- linux-2.6.22.10/security/selinux/hooks.c    2007-10-30 01:57:15 +0100
+++ linux-2.6.22.10-vs2.3.0.29/security/selinux/hooks.c 2007-10-30 01:21:54 +0100
@@ -60,7 +60,6 @@
 #include <linux/dccp.h>
 #include <linux/quota.h>
 #include <linux/un.h>          /* for Unix socket types */
-#include <net/af_unix.h>       /* for Unix socket types */
 #include <linux/parser.h>
 #include <linux/nfs_mount.h>
 #include <net/ipv6.h>