obj-$(CONFIG_EFIVAR_FS) += efivarfs/
+obj-$(CONFIG_AUFS_FS) += aufs/
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
-index f330ba4..67d88cd 100644
+index dd9820b..d0435d9 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -59,6 +59,7 @@ header-y += atmsvc.h
aufs4.x-rcN base patch
diff --git a/MAINTAINERS b/MAINTAINERS
-index 107c10e..dd8df20 100644
+index 1b0a87f..76fd7cc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
-@@ -2308,6 +2308,19 @@ F: include/linux/audit.h
+@@ -2319,6 +2319,19 @@ F: include/linux/audit.h
F: include/uapi/linux/audit.h
F: kernel/audit*
M: Miguel Ojeda Sandonis <miguel.ojeda.sandonis@gmail.com>
W: http://miguelojeda.es/auxdisplay.htm
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
-index f347285..b63f68b 100644
+index 0ecb646..cf39138 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -701,6 +701,24 @@ static inline int is_loop_device(struct file *file)
void (*finish)(void *))
{
diff --git a/fs/fcntl.c b/fs/fcntl.c
-index e1c54f2..9f07008 100644
+index be8fbe2..f5f4f94 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
-@@ -29,7 +29,7 @@
+@@ -30,7 +30,7 @@
#define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | O_DIRECT | O_NOATIME)
{
struct inode * inode = file_inode(filp);
int error = 0;
-@@ -60,6 +60,8 @@ static int setfl(int fd, struct file * filp, unsigned long arg)
+@@ -61,6 +61,8 @@ static int setfl(int fd, struct file * filp, unsigned long arg)
if (filp->f_op->check_flags)
error = filp->f_op->check_flags(arg);
int (*update_time)(struct inode *, struct timespec *, int);
diff --git a/fs/read_write.c b/fs/read_write.c
-index 5816d4c..670b365 100644
+index c4f88af..ac71b96 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
-@@ -515,6 +515,28 @@ ssize_t __vfs_write(struct file *file, const char __user *p, size_t count,
+@@ -513,6 +513,28 @@ ssize_t __vfs_write(struct file *file, const char __user *p, size_t count,
}
EXPORT_SYMBOL(__vfs_write);
{
mm_segment_t old_fs;
diff --git a/fs/splice.c b/fs/splice.c
-index 873d831..7899532 100644
+index 006ba50..46c87af 100644
--- a/fs/splice.c
+++ b/fs/splice.c
-@@ -856,8 +856,8 @@ EXPORT_SYMBOL(generic_splice_sendpage);
+@@ -859,8 +859,8 @@ EXPORT_SYMBOL(generic_splice_sendpage);
/*
* Attempt to initiate a splice from pipe to file.
*/
{
ssize_t (*splice_write)(struct pipe_inode_info *, struct file *,
loff_t *, size_t, unsigned int);
-@@ -873,9 +873,9 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
+@@ -876,9 +876,9 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
/*
* Attempt to initiate a splice from a file to a pipe.
*/
ssize_t (*splice_read)(struct file *, loff_t *,
struct pipe_inode_info *, size_t, unsigned int);
diff --git a/fs/sync.c b/fs/sync.c
-index 2a54c1f..7a5fa3f 100644
+index 11ba023..abf6a5d 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -27,7 +27,7 @@
static inline void fput_light(struct file *file, int fput_needed)
{
diff --git a/include/linux/fs.h b/include/linux/fs.h
-index 2ba0743..d1c583b 100644
+index 7251f7b..3668627 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
-@@ -1240,6 +1240,7 @@ extern void fasync_free(struct fasync_struct *);
+@@ -1246,6 +1246,7 @@ extern void fasync_free(struct fasync_struct *);
/* can be called from interrupts */
extern void kill_fasync(struct fasync_struct **, int, int);
extern void __f_setown(struct file *filp, struct pid *, enum pid_type, int force);
extern void f_setown(struct file *filp, unsigned long arg, int force);
extern void f_delown(struct file *filp);
-@@ -1664,6 +1665,7 @@ struct file_operations {
+@@ -1673,6 +1674,7 @@ struct file_operations {
ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int);
unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
int (*check_flags)(int);
int (*flock) (struct file *, int, struct file_lock *);
ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int);
ssize_t (*splice_read)(struct file *, loff_t *, struct pipe_inode_info *, size_t, unsigned int);
-@@ -1717,6 +1719,12 @@ ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
+@@ -1749,6 +1751,12 @@ ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
struct iovec *fast_pointer,
struct iovec **ret_pointer);
extern ssize_t __vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t __vfs_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
-@@ -2108,6 +2116,7 @@ extern int current_umask(void);
+@@ -2127,6 +2135,7 @@ extern int current_umask(void);
extern void ihold(struct inode * inode);
extern void iput(struct inode *);
extern int generic_update_time(struct inode *, struct timespec *, int);
/* /sys/fs */
extern struct kobject *fs_kobj;
-@@ -2387,6 +2396,7 @@ static inline bool sb_is_blkdev_sb(struct super_block *sb)
+@@ -2407,6 +2416,7 @@ static inline bool sb_is_blkdev_sb(struct super_block *sb)
return false;
}
#endif
aufs4.x-rcN mmap patch
diff --git a/fs/proc/base.c b/fs/proc/base.c
-index 87c9a9a..a0196f0 100644
+index c87b6b9..6b71643 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
-@@ -1958,7 +1958,7 @@ static int map_files_get_link(struct dentry *dentry, struct path *path)
+@@ -1946,7 +1946,7 @@ static int map_files_get_link(struct dentry *dentry, struct path *path)
down_read(&mm->mmap_sem);
vma = find_exact_vma(mm, vm_start, vm_end);
if (vma && vma->vm_file) {
ino = inode->i_ino;
}
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
-index 8f96a49..0d10404 100644
+index f08bd31..e1b9a37 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
-@@ -291,7 +291,10 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
+@@ -292,7 +292,10 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
const char *name = NULL;
if (file) {
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
-@@ -1628,7 +1631,7 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
+@@ -1629,7 +1632,7 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
struct proc_maps_private *proc_priv = &numa_priv->proc_maps;
struct vm_area_struct *vma = v;
struct numa_maps *md = &numa_priv->md;
struct mm_walk walk = {
.hugetlb_entry = gather_hugetlb_stats,
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
-index 3717562..6a328f1 100644
+index 23266694..58e59b6 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
-@@ -155,7 +155,10 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
+@@ -157,7 +157,10 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
file = vma->vm_file;
if (file) {
ino = inode->i_ino;
pgoff = (loff_t)vma->vm_pgoff << PAGE_SHIFT;
diff --git a/include/linux/mm.h b/include/linux/mm.h
-index b84615b..3978a35 100644
+index 00a8fa7..a90742b 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
-@@ -1257,6 +1257,28 @@ static inline int fixup_user_fault(struct task_struct *tsk,
+@@ -1294,6 +1294,28 @@ static inline int fixup_user_fault(struct task_struct *tsk,
}
#endif
unsigned int gup_flags);
extern int access_remote_vm(struct mm_struct *mm, unsigned long addr,
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
-index 808751d..66fc765 100644
+index f60f45f..38c5f76 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
-@@ -275,6 +275,7 @@ struct vm_region {
+@@ -259,6 +259,7 @@ struct vm_region {
unsigned long vm_top; /* region allocated to here */
unsigned long vm_pgoff; /* the offset in vm_file corresponding to vm_start */
struct file *vm_file; /* the backing file or NULL */
int vm_usage; /* region usage count (access under nommu_region_sem) */
bool vm_icache_flushed : 1; /* true if the icache has been flushed for
-@@ -349,6 +350,7 @@ struct vm_area_struct {
+@@ -333,6 +334,7 @@ struct vm_area_struct {
unsigned long vm_pgoff; /* Offset (within vm_file) in PAGE_SIZE
units */
struct file * vm_file; /* File we map to (can be NULL). */
#ifndef CONFIG_MMU
diff --git a/kernel/fork.c b/kernel/fork.c
-index 11c5c8a..48e7ef7 100644
+index 6c463c80..24ae37c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
-@@ -626,7 +626,7 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
+@@ -641,7 +641,7 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
struct inode *inode = file_inode(file);
struct address_space *mapping = file->f_mapping;
atomic_dec(&inode->i_writecount);
i_mmap_lock_write(mapping);
diff --git a/mm/Makefile b/mm/Makefile
-index 295bd7a..14fa1c8 100644
+index 026f6a8..723da17 100644
--- a/mm/Makefile
+++ b/mm/Makefile
-@@ -37,7 +37,7 @@ obj-y := filemap.o mempool.o oom_kill.o \
+@@ -39,7 +39,7 @@ obj-y := filemap.o mempool.o oom_kill.o \
mm_init.o mmu_context.o percpu.o slab_common.o \
- compaction.o vmacache.o \
+ compaction.o vmacache.o swap_slots.o \
interval_tree.o list_lru.o workingset.o \
- debug.o $(mmu-y)
+ prfile.o debug.o $(mmu-y)
obj-y += init-mm.o
diff --git a/mm/filemap.c b/mm/filemap.c
-index 3f9afde..bb050b0 100644
+index 1694623..68cd758 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
-@@ -2397,7 +2397,7 @@ int filemap_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
+@@ -2406,7 +2406,7 @@ int filemap_page_mkwrite(struct vm_fault *vmf)
int ret = VM_FAULT_LOCKED;
sb_start_pagefault(inode->i_sb);
-- file_update_time(vma->vm_file);
-+ vma_file_update_time(vma);
+- file_update_time(vmf->vma->vm_file);
++ vma_file_update_time(vmf->vma);
lock_page(page);
if (page->mapping != inode->i_mapping) {
unlock_page(page);
diff --git a/mm/mmap.c b/mm/mmap.c
-index dc4291d..4b3a2aa 100644
+index bfbe885..8bd32f9 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -170,7 +170,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
mpol_put(vma_policy(vma));
kmem_cache_free(vm_area_cachep, vma);
return next;
-@@ -879,7 +879,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
+@@ -881,7 +881,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
if (remove_next) {
if (file) {
uprobe_munmap(next, next->vm_start, next->vm_end);
}
if (next->anon_vma)
anon_vma_merge(vma, next);
-@@ -1727,8 +1727,8 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
+@@ -1731,8 +1731,8 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
return addr;
unmap_and_free_vma:
/* Undo any partial mapping done by a device driver. */
unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
-@@ -2533,7 +2533,7 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -2537,7 +2537,7 @@ int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
goto out_free_mpol;
if (new->vm_file)
if (new->vm_ops && new->vm_ops->open)
new->vm_ops->open(new);
-@@ -2552,7 +2552,7 @@ static int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -2556,7 +2556,7 @@ int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
if (new->vm_ops && new->vm_ops->close)
new->vm_ops->close(new);
if (new->vm_file)
unlink_anon_vmas(new);
out_free_mpol:
mpol_put(vma_policy(new));
-@@ -2703,7 +2703,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
+@@ -2710,7 +2710,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
struct vm_area_struct *vma;
unsigned long populate = 0;
unsigned long ret = -EINVAL;
pr_warn_once("%s (%d) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt.\n",
current->comm, current->pid);
-@@ -2778,10 +2778,27 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
+@@ -2785,10 +2785,27 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
}
}
+ file = vma->vm_file;
+ prfile = vma->vm_prfile;
ret = do_mmap_pgoff(vma->vm_file, start, size,
- prot, flags, pgoff, &populate);
+ prot, flags, pgoff, &populate, NULL);
+ if (!IS_ERR_VALUE(ret) && file && prfile) {
+ struct vm_area_struct *new_vma;
+
out:
up_write(&mm->mmap_sem);
if (populate)
-@@ -3056,7 +3073,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
+@@ -3079,7 +3096,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
if (anon_vma_clone(new_vma, vma))
goto out_free_mempol;
if (new_vma->vm_file)
new_vma->vm_ops->open(new_vma);
vma_link(mm, new_vma, prev, rb_link, rb_parent);
diff --git a/mm/nommu.c b/mm/nommu.c
-index 24f9f5f..ac0d37a 100644
+index 2d131b9..5dc9a19 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
-@@ -636,7 +636,7 @@ static void __put_nommu_region(struct vm_region *region)
+@@ -637,7 +637,7 @@ static void __put_nommu_region(struct vm_region *region)
up_write(&nommu_region_sem);
if (region->vm_file)
/* IO memory and memory shared directly out of the pagecache
* from ramfs/tmpfs mustn't be released here */
-@@ -794,7 +794,7 @@ static void delete_vma(struct mm_struct *mm, struct vm_area_struct *vma)
+@@ -795,7 +795,7 @@ static void delete_vma(struct mm_struct *mm, struct vm_area_struct *vma)
if (vma->vm_ops && vma->vm_ops->close)
vma->vm_ops->close(vma);
if (vma->vm_file)
put_nommu_region(vma->vm_region);
kmem_cache_free(vm_area_cachep, vma);
}
-@@ -1320,7 +1320,7 @@ unsigned long do_mmap(struct file *file,
+@@ -1322,7 +1322,7 @@ unsigned long do_mmap(struct file *file,
goto error_just_free;
}
}
kmem_cache_free(vm_region_jar, region);
region = pregion;
result = start;
-@@ -1395,10 +1395,10 @@ unsigned long do_mmap(struct file *file,
+@@ -1397,10 +1397,10 @@ unsigned long do_mmap(struct file *file,
up_write(&nommu_region_sem);
error:
if (region->vm_file)
/**
* d_ancestor - search for an ancestor
diff --git a/fs/exec.c b/fs/exec.c
-index e579466..2566b16 100644
+index 65145a3..8d35776 100644
--- a/fs/exec.c
+++ b/fs/exec.c
-@@ -104,6 +104,7 @@ bool path_noexec(const struct path *path)
+@@ -109,6 +109,7 @@ bool path_noexec(const struct path *path)
return (path->mnt->mnt_flags & MNT_NOEXEC) ||
(path->mnt->mnt_sb->s_iflags & SB_I_NOEXEC);
}
#ifdef CONFIG_USELIB
/*
diff --git a/fs/fcntl.c b/fs/fcntl.c
-index 9f07008..d60b682 100644
+index f5f4f94..c671660 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
-@@ -82,6 +82,7 @@ int setfl(int fd, struct file * filp, unsigned long arg)
+@@ -83,6 +83,7 @@ int setfl(int fd, struct file * filp, unsigned long arg)
out:
return error;
}
static void f_modown(struct file *filp, struct pid *pid, enum pid_type type,
int force)
diff --git a/fs/file_table.c b/fs/file_table.c
-index 6d982b5..9a3c6c8 100644
+index 954d510..4fb5b10 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
-@@ -147,6 +147,7 @@ struct file *get_empty_filp(void)
+@@ -148,6 +148,7 @@ struct file *get_empty_filp(void)
}
return ERR_PTR(-ENFILE);
}
/**
* alloc_file - allocate and initialize a 'struct file'
-@@ -258,6 +259,7 @@ void flush_delayed_fput(void)
+@@ -259,6 +260,7 @@ void flush_delayed_fput(void)
{
delayed_fput(NULL);
}
static DECLARE_DELAYED_WORK(delayed_fput_work, delayed_fput);
-@@ -300,6 +302,7 @@ void __fput_sync(struct file *file)
+@@ -301,6 +303,7 @@ void __fput_sync(struct file *file)
}
EXPORT_SYMBOL(fput);
void put_filp(struct file *file)
{
-@@ -308,6 +311,7 @@ void put_filp(struct file *file)
+@@ -309,6 +312,7 @@ void put_filp(struct file *file)
file_free(file);
}
}
/**
* touch_atime - update the access time
diff --git a/fs/namespace.c b/fs/namespace.c
-index 487ba30..642069d 100644
+index cc1375ef..9b4c67c 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
-@@ -462,6 +462,7 @@ void __mnt_drop_write(struct vfsmount *mnt)
+@@ -465,6 +465,7 @@ void __mnt_drop_write(struct vfsmount *mnt)
mnt_dec_writers(real_mount(mnt));
preempt_enable();
}
/**
* mnt_drop_write - give up write access to a mount
-@@ -1872,6 +1873,7 @@ int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg,
+@@ -1884,6 +1885,7 @@ int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg,
}
return 0;
}
/*
* Destroy all marks in destroy_list, waits for SRCU period to finish before
diff --git a/fs/open.c b/fs/open.c
-index 9921f70..80d94c0 100644
+index 949cef2..9a892fb8 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -64,6 +64,7 @@ int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
long vfs_truncate(const struct path *path, loff_t length)
{
-@@ -695,6 +696,7 @@ int open_check_o_direct(struct file *f)
+@@ -693,6 +694,7 @@ int open_check_o_direct(struct file *f)
}
return 0;
}
static int do_dentry_open(struct file *f,
struct inode *inode,
diff --git a/fs/read_write.c b/fs/read_write.c
-index 670b365..f9f8bb1 100644
+index ac71b96..b69e687 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
-@@ -525,6 +525,7 @@ vfs_readf_t vfs_readf(struct file *file)
+@@ -523,6 +523,7 @@ vfs_readf_t vfs_readf(struct file *file)
return new_sync_read;
return ERR_PTR(-ENOSYS);
}
vfs_writef_t vfs_writef(struct file *file)
{
-@@ -536,6 +537,7 @@ vfs_writef_t vfs_writef(struct file *file)
+@@ -534,6 +535,7 @@ vfs_writef_t vfs_writef(struct file *file)
return new_sync_write;
return ERR_PTR(-ENOSYS);
}
ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t *pos)
{
diff --git a/fs/splice.c b/fs/splice.c
-index 7899532..c0df111 100644
+index 46c87af..0efa652 100644
--- a/fs/splice.c
+++ b/fs/splice.c
-@@ -869,6 +869,7 @@ long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
+@@ -872,6 +872,7 @@ long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
return splice_write(pipe, out, ppos, len, flags);
}
/*
* Attempt to initiate a splice from a file to a pipe.
-@@ -898,6 +899,7 @@ long do_splice_to(struct file *in, loff_t *ppos,
+@@ -901,6 +902,7 @@ long do_splice_to(struct file *in, loff_t *ppos,
return splice_read(in, ppos, pipe, len, flags);
}
/**
* splice_direct_to_actor - splices data directly between two non-pipes
diff --git a/fs/sync.c b/fs/sync.c
-index 7a5fa3f..c9b9d46 100644
+index abf6a5d..c86fe9c 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -38,6 +38,7 @@ int __sync_filesystem(struct super_block *sb, int wait)
}
+EXPORT_SYMBOL_GPL(task_work_run);
diff --git a/security/commoncap.c b/security/commoncap.c
-index 8df676f..6b5cc07 100644
+index 78b3783..c8b3e88 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
-@@ -1061,12 +1061,14 @@ int cap_mmap_addr(unsigned long addr)
+@@ -1062,12 +1062,14 @@ int cap_mmap_addr(unsigned long addr)
}
return ret;
}
int devcgroup_inode_mknod(int mode, dev_t dev)
{
diff --git a/security/security.c b/security/security.c
-index f825304..8dd441d 100644
+index d0e07f2..5e323b0 100644
--- a/security/security.c
+++ b/security/security.c
-@@ -443,6 +443,7 @@ int security_path_rmdir(const struct path *dir, struct dentry *dentry)
+@@ -481,6 +481,7 @@ int security_path_rmdir(const struct path *dir, struct dentry *dentry)
return 0;
return call_int_hook(path_rmdir, 0, dir, dentry);
}
int security_path_unlink(const struct path *dir, struct dentry *dentry)
{
-@@ -459,6 +460,7 @@ int security_path_symlink(const struct path *dir, struct dentry *dentry,
+@@ -497,6 +498,7 @@ int security_path_symlink(const struct path *dir, struct dentry *dentry,
return 0;
return call_int_hook(path_symlink, 0, dir, dentry, old_name);
}
int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
struct dentry *new_dentry)
-@@ -467,6 +469,7 @@ int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
+@@ -505,6 +507,7 @@ int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
return 0;
return call_int_hook(path_link, 0, old_dentry, new_dir, new_dentry);
}
int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
const struct path *new_dir, struct dentry *new_dentry,
-@@ -494,6 +497,7 @@ int security_path_truncate(const struct path *path)
+@@ -532,6 +535,7 @@ int security_path_truncate(const struct path *path)
return 0;
return call_int_hook(path_truncate, 0, path);
}
int security_path_chmod(const struct path *path, umode_t mode)
{
-@@ -501,6 +505,7 @@ int security_path_chmod(const struct path *path, umode_t mode)
+@@ -539,6 +543,7 @@ int security_path_chmod(const struct path *path, umode_t mode)
return 0;
return call_int_hook(path_chmod, 0, path, mode);
}
int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
{
-@@ -508,6 +513,7 @@ int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
+@@ -546,6 +551,7 @@ int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
return 0;
return call_int_hook(path_chown, 0, path, uid, gid);
}
int security_path_chroot(const struct path *path)
{
-@@ -593,6 +599,7 @@ int security_inode_readlink(struct dentry *dentry)
+@@ -631,6 +637,7 @@ int security_inode_readlink(struct dentry *dentry)
return 0;
return call_int_hook(inode_readlink, 0, dentry);
}
int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
bool rcu)
-@@ -608,6 +615,7 @@ int security_inode_permission(struct inode *inode, int mask)
+@@ -646,6 +653,7 @@ int security_inode_permission(struct inode *inode, int mask)
return 0;
return call_int_hook(inode_permission, 0, inode, mask);
}
int security_inode_setattr(struct dentry *dentry, struct iattr *attr)
{
-@@ -779,6 +787,7 @@ int security_file_permission(struct file *file, int mask)
+@@ -817,6 +825,7 @@ int security_file_permission(struct file *file, int mask)
return fsnotify_perm(file, mask);
}
int security_file_alloc(struct file *file)
{
-@@ -838,6 +847,7 @@ int security_mmap_file(struct file *file, unsigned long prot,
+@@ -876,6 +885,7 @@ int security_mmap_file(struct file *file, unsigned long prot,
return ret;
return ima_file_mmap(file, prot);
}
{
diff -urN /usr/share/empty/Documentation/ABI/testing/debugfs-aufs linux/Documentation/ABI/testing/debugfs-aufs
--- /usr/share/empty/Documentation/ABI/testing/debugfs-aufs 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/ABI/testing/debugfs-aufs 2016-10-09 16:55:36.476034536 +0200
++++ linux/Documentation/ABI/testing/debugfs-aufs 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,50 @@
+What: /debug/aufs/si_<id>/
+Date: March 2009
+ will be empty. About XINO files, see the aufs manual.
diff -urN /usr/share/empty/Documentation/ABI/testing/sysfs-aufs linux/Documentation/ABI/testing/sysfs-aufs
--- /usr/share/empty/Documentation/ABI/testing/sysfs-aufs 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/ABI/testing/sysfs-aufs 2016-10-09 16:55:36.476034536 +0200
++++ linux/Documentation/ABI/testing/sysfs-aufs 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,31 @@
+What: /sys/fs/aufs/si_<id>/
+Date: March 2009
+ will be empty. About XINO files, see the aufs manual.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/01intro.txt linux/Documentation/filesystems/aufs/design/01intro.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/01intro.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/01intro.txt 2017-03-02 14:24:13.850255360 +0100
++++ linux/Documentation/filesystems/aufs/design/01intro.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,170 @@
+
+# Copyright (C) 2005-2017 Junjiro R. Okajima
+about it. But currently I have implemented it in kernel space.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/02struct.txt linux/Documentation/filesystems/aufs/design/02struct.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/02struct.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/02struct.txt 2017-03-02 14:24:13.850255360 +0100
++++ linux/Documentation/filesystems/aufs/design/02struct.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,258 @@
+
+# Copyright (C) 2005-2017 Junjiro R. Okajima
+For this purpose, use "aumvdown" command in aufs-util.git.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/03atomic_open.txt linux/Documentation/filesystems/aufs/design/03atomic_open.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/03atomic_open.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/03atomic_open.txt 2017-03-02 14:24:13.850255360 +0100
++++ linux/Documentation/filesystems/aufs/design/03atomic_open.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,85 @@
+
+# Copyright (C) 2015-2017 Junjiro R. Okajima
+ be implemented in aufs, but not all I am afraid.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/03lookup.txt linux/Documentation/filesystems/aufs/design/03lookup.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/03lookup.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/03lookup.txt 2017-03-02 14:24:13.850255360 +0100
++++ linux/Documentation/filesystems/aufs/design/03lookup.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,113 @@
+
+# Copyright (C) 2005-2017 Junjiro R. Okajima
+ by over-mounting something (or another method).
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/04branch.txt linux/Documentation/filesystems/aufs/design/04branch.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/04branch.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/04branch.txt 2017-03-02 14:24:13.850255360 +0100
++++ linux/Documentation/filesystems/aufs/design/04branch.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,74 @@
+
+# Copyright (C) 2005-2017 Junjiro R. Okajima
+ same named entry on the upper branch.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/05wbr_policy.txt linux/Documentation/filesystems/aufs/design/05wbr_policy.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/05wbr_policy.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/05wbr_policy.txt 2017-03-02 14:24:13.850255360 +0100
++++ linux/Documentation/filesystems/aufs/design/05wbr_policy.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,64 @@
+
+# Copyright (C) 2005-2017 Junjiro R. Okajima
+ copyup policy.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/06fhsm.txt linux/Documentation/filesystems/aufs/design/06fhsm.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/06fhsm.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/06fhsm.txt 2017-03-02 14:24:13.850255360 +0100
++++ linux/Documentation/filesystems/aufs/design/06fhsm.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,120 @@
+
+# Copyright (C) 2011-2017 Junjiro R. Okajima
+should restore the original file state after an error happens.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/06mmap.txt linux/Documentation/filesystems/aufs/design/06mmap.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/06mmap.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/06mmap.txt 2017-03-02 14:24:13.853588785 +0100
++++ linux/Documentation/filesystems/aufs/design/06mmap.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,72 @@
+
+# Copyright (C) 2005-2017 Junjiro R. Okajima
+I have to give up this "looks-smater" approach.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/06xattr.txt linux/Documentation/filesystems/aufs/design/06xattr.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/06xattr.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/06xattr.txt 2017-03-02 14:24:13.853588785 +0100
++++ linux/Documentation/filesystems/aufs/design/06xattr.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,96 @@
+
+# Copyright (C) 2014-2017 Junjiro R. Okajima
+now, aufs implements the branch attributes to ignore the error.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/07export.txt linux/Documentation/filesystems/aufs/design/07export.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/07export.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/07export.txt 2017-03-02 14:24:13.853588785 +0100
++++ linux/Documentation/filesystems/aufs/design/07export.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,58 @@
+
+# Copyright (C) 2005-2017 Junjiro R. Okajima
+ lookup_one_len(), vfs_getattr(), encode_fh() and others.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/08shwh.txt linux/Documentation/filesystems/aufs/design/08shwh.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/08shwh.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/08shwh.txt 2017-03-02 14:24:13.853588785 +0100
++++ linux/Documentation/filesystems/aufs/design/08shwh.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,52 @@
+
+# Copyright (C) 2005-2017 Junjiro R. Okajima
+initramfs will use it to replace the old one at the next boot.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/10dynop.txt linux/Documentation/filesystems/aufs/design/10dynop.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/10dynop.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/10dynop.txt 2017-03-02 14:24:13.853588785 +0100
++++ linux/Documentation/filesystems/aufs/design/10dynop.txt 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,47 @@
+
+# Copyright (C) 2010-2017 Junjiro R. Okajima
+regular files only.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/README linux/Documentation/filesystems/aufs/README
--- /usr/share/empty/Documentation/filesystems/aufs/README 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/README 2016-12-17 12:28:17.595211562 +0100
++++ linux/Documentation/filesystems/aufs/README 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,393 @@
+
+Aufs4 -- advanced multi layered unification filesystem version 4.x
+# End: ;
diff -urN /usr/share/empty/fs/aufs/aufs.h linux/fs/aufs/aufs.h
--- /usr/share/empty/fs/aufs/aufs.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/aufs.h 2017-03-02 14:24:13.853588785 +0100
++++ linux/fs/aufs/aufs.h 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_H__ */
diff -urN /usr/share/empty/fs/aufs/branch.c linux/fs/aufs/branch.c
--- /usr/share/empty/fs/aufs/branch.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/branch.c 2017-03-02 14:24:13.853588785 +0100
-@@ -0,0 +1,1412 @@
++++ linux/fs/aufs/branch.c 2017-05-06 22:16:52.774886674 +0200
+@@ -0,0 +1,1423 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+
+ if (br->br_xino.xi_file)
+ fput(br->br_xino.xi_file);
-+ mutex_destroy(&br->br_xino.xi_nondir_mtx);
++ for (i = br->br_xino.xi_nondir.total - 1; i >= 0; i--)
++ AuDebugOn(br->br_xino.xi_nondir.array[i]);
++ au_delayed_kfree(br->br_xino.xi_nondir.array);
+
+ AuDebugOn(au_br_count(br));
+ au_br_count_fin(br);
+ int err;
+
+ err = -ENOMEM;
-+ root = sb->s_root;
+ add_branch = kzalloc(sizeof(*add_branch), GFP_NOFS);
+ if (unlikely(!add_branch))
+ goto out;
++ add_branch->br_xino.xi_nondir.total = 8; /* initial size */
++ add_branch->br_xino.xi_nondir.array
++ = kzalloc(sizeof(ino_t) * add_branch->br_xino.xi_nondir.total,
++ GFP_NOFS);
++ if (unlikely(!add_branch->br_xino.xi_nondir.array))
++ goto out_br;
+
+ err = au_hnotify_init_br(add_branch, perm);
+ if (unlikely(err))
-+ goto out_br;
++ goto out_xinondir;
+
+ if (au_br_writable(perm)) {
+ /* may be freed separately at changing the branch permission */
+ goto out_wbr;
+ }
+
++ root = sb->s_root;
+ err = au_sbr_realloc(au_sbi(sb), new_nbranch, /*may_shrink*/0);
+ if (!err)
+ err = au_di_realloc(au_di(root), new_nbranch, /*may_shrink*/0);
+ au_delayed_kfree(add_branch->br_wbr);
+out_hnotify:
+ au_hnotify_fin_br(add_branch);
++out_xinondir:
++ au_delayed_kfree(add_branch->br_xino.xi_nondir.array);
+out_br:
+ au_delayed_kfree(add_branch);
+out:
+ struct inode *h_inode;
+
+ err = 0;
-+ mutex_init(&br->br_xino.xi_nondir_mtx);
++ spin_lock_init(&br->br_xino.xi_nondir.spin);
++ init_waitqueue_head(&br->br_xino.xi_nondir.wqh);
+ br->br_perm = add->perm;
+ br->br_path = add->path; /* set first, path_get() later */
+ spin_lock_init(&br->br_dykey_lock);
+}
diff -urN /usr/share/empty/fs/aufs/branch.h linux/fs/aufs/branch.h
--- /usr/share/empty/fs/aufs/branch.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/branch.h 2017-03-02 14:24:13.853588785 +0100
-@@ -0,0 +1,309 @@
++++ linux/fs/aufs/branch.h 2017-05-06 22:16:52.774886674 +0200
+@@ -0,0 +1,321 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+/* a xino file */
+struct au_xino_file {
+ struct file *xi_file;
-+ struct mutex xi_nondir_mtx;
++ struct {
++ spinlock_t spin;
++ ino_t *array;
++ int total;
++ /* reserved for future use */
++ /* unsigned long *bitmap; */
++ wait_queue_head_t wqh;
++ } xi_nondir;
+
+ /* todo: make xino files an array to support huge inode number */
+
+struct file *au_xino_def(struct super_block *sb);
+int au_xino_path(struct seq_file *seq, struct file *file);
+
++void au_xinondir_leave(struct super_block *sb, aufs_bindex_t bindex,
++ ino_t h_ino, int idx);
++int au_xinondir_enter(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino,
++ int *idx);
++
+/* ---------------------------------------------------------------------- */
+
+/* Superblock to branch */
+#endif /* __AUFS_BRANCH_H__ */
diff -urN /usr/share/empty/fs/aufs/conf.mk linux/fs/aufs/conf.mk
--- /usr/share/empty/fs/aufs/conf.mk 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/conf.mk 2016-10-09 16:55:36.486034798 +0200
++++ linux/fs/aufs/conf.mk 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,38 @@
+
+AuConfStr = CONFIG_AUFS_FS=${CONFIG_AUFS_FS}
+-include ${srctree}/${src}/conf_priv.mk
diff -urN /usr/share/empty/fs/aufs/cpup.c linux/fs/aufs/cpup.c
--- /usr/share/empty/fs/aufs/cpup.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/cpup.c 2017-03-02 14:24:13.856922210 +0100
-@@ -0,0 +1,1388 @@
++++ linux/fs/aufs/cpup.c 2017-05-06 22:16:52.774886674 +0200
+@@ -0,0 +1,1407 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+ .label = &&out_src
+ }
+ };
-+ struct super_block *sb;
++ struct super_block *sb, *h_src_sb;
+ struct inode *h_src_inode;
+ struct task_struct *tsk = current;
+
+
+ /* try stopping to update while we copyup */
+ h_src_inode = d_inode(file[SRC].dentry);
-+ if (!au_test_nfs(h_src_inode->i_sb))
++ h_src_sb = h_src_inode->i_sb;
++ if (!au_test_nfs(h_src_sb))
+ IMustLock(h_src_inode);
-+ err = au_copy_file(file[DST].file, file[SRC].file, cpg->len);
++
++ if (h_src_sb != file_inode(file[DST].file)->i_sb
++ || !file[DST].file->f_op->clone_file_range)
++ err = au_copy_file(file[DST].file, file[SRC].file, cpg->len);
++ else {
++ if (!au_test_nfs(h_src_sb)) {
++ inode_unlock(h_src_inode);
++ err = vfsub_clone_file_range(file[SRC].file,
++ file[DST].file, cpg->len);
++ inode_lock(h_src_inode);
++ } else
++ err = vfsub_clone_file_range(file[SRC].file,
++ file[DST].file, cpg->len);
++ if (unlikely(err == -EOPNOTSUPP && au_test_nfs(h_src_sb)))
++ /* the backend fs on NFS may not support cloning */
++ err = au_copy_file(file[DST].file, file[SRC].file,
++ cpg->len);
++ AuTraceErr(err);
++ }
+
+ /* i wonder if we had O_NO_DELAY_FPUT flag */
+ if (tsk->flags & PF_KTHREAD)
+ h_path.mnt = au_sbr_mnt(cpg->dentry->d_sb, cpg->bsrc);
+ h_src_attr->iflags = h_src_inode->i_flags;
+ if (!au_test_nfs(h_src_inode->i_sb))
-+ err = vfs_getattr(&h_path, &h_src_attr->st);
++ err = vfsub_getattr(&h_path, &h_src_attr->st);
+ else {
+ inode_unlock(h_src_inode);
-+ err = vfs_getattr(&h_path, &h_src_attr->st);
++ err = vfsub_getattr(&h_path, &h_src_attr->st);
+ inode_lock_nested(h_src_inode, AuLsc_I_CHILD);
+ }
+ if (unlikely(err)) {
+}
diff -urN /usr/share/empty/fs/aufs/cpup.h linux/fs/aufs/cpup.h
--- /usr/share/empty/fs/aufs/cpup.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/cpup.h 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/cpup.h 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_CPUP_H__ */
diff -urN /usr/share/empty/fs/aufs/dbgaufs.c linux/fs/aufs/dbgaufs.c
--- /usr/share/empty/fs/aufs/dbgaufs.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dbgaufs.c 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/dbgaufs.c 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,438 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ if (!xf)
+ goto out;
+
-+ err = vfs_getattr(&xf->f_path, &st);
++ err = vfsub_getattr(&xf->f_path, &st);
+ if (!err) {
+ if (do_fcnt)
+ p->n = snprintf
-+ (p->a, sizeof(p->a), "%ld, %llux%lu %lld\n",
++ (p->a, sizeof(p->a), "%ld, %llux%u %lld\n",
+ (long)file_count(xf), st.blocks, st.blksize,
+ (long long)st.size);
+ else
-+ p->n = snprintf(p->a, sizeof(p->a), "%llux%lu %lld\n",
++ p->n = snprintf(p->a, sizeof(p->a), "%llux%u %lld\n",
+ st.blocks, st.blksize,
+ (long long)st.size);
+ AuDebugOn(p->n >= sizeof(p->a));
+}
diff -urN /usr/share/empty/fs/aufs/dbgaufs.h linux/fs/aufs/dbgaufs.h
--- /usr/share/empty/fs/aufs/dbgaufs.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dbgaufs.h 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/dbgaufs.h 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __DBGAUFS_H__ */
diff -urN /usr/share/empty/fs/aufs/dcsub.c linux/fs/aufs/dcsub.c
--- /usr/share/empty/fs/aufs/dcsub.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dcsub.c 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/dcsub.c 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,225 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/dcsub.h linux/fs/aufs/dcsub.h
--- /usr/share/empty/fs/aufs/dcsub.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dcsub.h 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/dcsub.h 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_DCSUB_H__ */
diff -urN /usr/share/empty/fs/aufs/debug.c linux/fs/aufs/debug.c
--- /usr/share/empty/fs/aufs/debug.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/debug.c 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/debug.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,440 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ return;
+ dpri("nw %d, gen %u, kobj %d\n",
+ atomic_read(&sbinfo->si_nowait.nw_len), sbinfo->si_generation,
-+ atomic_read(&sbinfo->si_kobj.kref.refcount));
++ kref_read(&sbinfo->si_kobj.kref));
+ for (bindex = 0; bindex <= sbinfo->si_bbot; bindex++)
+ do_pri_br(bindex, sbinfo->si_branch[0 + bindex]);
+}
+}
diff -urN /usr/share/empty/fs/aufs/debug.h linux/fs/aufs/debug.h
--- /usr/share/empty/fs/aufs/debug.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/debug.h 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/debug.h 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,225 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_DEBUG_H__ */
diff -urN /usr/share/empty/fs/aufs/dentry.c linux/fs/aufs/dentry.c
--- /usr/share/empty/fs/aufs/dentry.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dentry.c 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/dentry.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,1130 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+};
diff -urN /usr/share/empty/fs/aufs/dentry.h linux/fs/aufs/dentry.h
--- /usr/share/empty/fs/aufs/dentry.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dentry.h 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/dentry.h 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,255 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_DENTRY_H__ */
diff -urN /usr/share/empty/fs/aufs/dinfo.c linux/fs/aufs/dinfo.c
--- /usr/share/empty/fs/aufs/dinfo.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dinfo.c 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/dinfo.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,553 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ || d_inode(d1) == d_inode(d2)
+ || d1->d_sb != d2->d_sb);
+
-+ if (isdir && au_test_subdir(d1, d2)) {
++ if ((isdir && au_test_subdir(d1, d2))
++ || d1 < d2) {
+ di_write_lock_child(d1);
+ di_write_lock_child2(d2);
+ } else {
-+ /* there should be no races */
+ di_write_lock_child(d2);
+ di_write_lock_child2(d1);
+ }
+ || d_inode(d1) == d_inode(d2)
+ || d1->d_sb != d2->d_sb);
+
-+ if (isdir && au_test_subdir(d1, d2)) {
++ if ((isdir && au_test_subdir(d1, d2))
++ || d1 < d2) {
+ di_write_lock_parent(d1);
+ di_write_lock_parent2(d2);
+ } else {
-+ /* there should be no races */
+ di_write_lock_parent(d2);
+ di_write_lock_parent2(d1);
+ }
+}
diff -urN /usr/share/empty/fs/aufs/dir.c linux/fs/aufs/dir.c
--- /usr/share/empty/fs/aufs/dir.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dir.c 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/dir.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,762 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ struct super_block *sb;
+ struct inode *inode;
+
-+ err = au_reval_and_lock_fdi(file, reopen_dir, /*wlock*/1);
++ err = au_reval_and_lock_fdi(file, reopen_dir, /*wlock*/1, /*fi_lsc*/0);
+ if (unlikely(err))
+ goto out;
+
+
+ sb = dentry->d_sb;
+ si_read_lock(sb, AuLock_FLUSH);
-+ err = au_reval_and_lock_fdi(file, reopen_dir, /*wlock*/1);
++ err = au_reval_and_lock_fdi(file, reopen_dir, /*wlock*/1, /*fi_lsc*/0);
+ if (unlikely(err))
+ goto out;
+ err = au_alive_dir(dentry);
+};
diff -urN /usr/share/empty/fs/aufs/dir.h linux/fs/aufs/dir.h
--- /usr/share/empty/fs/aufs/dir.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dir.h 2017-03-02 14:24:13.856922210 +0100
++++ linux/fs/aufs/dir.h 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_DIR_H__ */
diff -urN /usr/share/empty/fs/aufs/dynop.c linux/fs/aufs/dynop.c
--- /usr/share/empty/fs/aufs/dynop.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dynop.c 2017-03-02 14:24:13.860255635 +0100
++++ linux/fs/aufs/dynop.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,371 @@
+/*
+ * Copyright (C) 2010-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/dynop.h linux/fs/aufs/dynop.h
--- /usr/share/empty/fs/aufs/dynop.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dynop.h 2017-03-02 14:24:13.860255635 +0100
++++ linux/fs/aufs/dynop.h 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2010-2017 Junjiro R. Okajima
+#endif /* __AUFS_DYNOP_H__ */
diff -urN /usr/share/empty/fs/aufs/export.c linux/fs/aufs/export.c
--- /usr/share/empty/fs/aufs/export.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/export.c 2017-03-02 14:24:13.860255635 +0100
++++ linux/fs/aufs/export.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,836 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/fhsm.c linux/fs/aufs/fhsm.c
--- /usr/share/empty/fs/aufs/fhsm.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/fhsm.c 2017-03-02 14:24:13.860255635 +0100
++++ linux/fs/aufs/fhsm.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,426 @@
+/*
+ * Copyright (C) 2011-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/file.c linux/fs/aufs/file.c
--- /usr/share/empty/fs/aufs/file.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/file.c 2017-03-02 14:24:13.860255635 +0100
-@@ -0,0 +1,857 @@
++++ linux/fs/aufs/file.c 2017-05-06 22:16:52.778220093 +0200
+@@ -0,0 +1,860 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+
+/* common function to regular file and dir */
+int au_reval_and_lock_fdi(struct file *file, int (*reopen)(struct file *file),
-+ int wlock)
++ int wlock, unsigned int fi_lsc)
+{
+ int err;
+ unsigned int sigen, figen;
+ dentry = file->f_path.dentry;
+ inode = d_inode(dentry);
+ sigen = au_sigen(dentry->d_sb);
-+ fi_write_lock(file);
++ fi_write_lock_nested(file, fi_lsc);
+ figen = au_figen(file);
-+ di_write_lock_child(dentry);
++ if (!fi_lsc)
++ di_write_lock_child(dentry);
++ else
++ di_write_lock_child2(dentry);
+ btop = au_dbtop(dentry);
+ pseudo_link = (btop != au_ibtop(inode));
+ if (sigen == figen && !pseudo_link && au_fbtop(file) == btop) {
+};
diff -urN /usr/share/empty/fs/aufs/file.h linux/fs/aufs/file.h
--- /usr/share/empty/fs/aufs/file.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/file.h 2017-03-02 14:24:13.860255635 +0100
-@@ -0,0 +1,294 @@
++++ linux/fs/aufs/file.h 2017-05-06 22:16:52.778220093 +0200
+@@ -0,0 +1,333 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+struct au_pin;
+int au_ready_to_write(struct file *file, loff_t len, struct au_pin *pin);
+int au_reval_and_lock_fdi(struct file *file, int (*reopen)(struct file *file),
-+ int wlock);
++ int wlock, unsigned int fi_lsc);
+int au_do_flush(struct file *file, fl_owner_t id,
+ int (*flush)(struct file *file, fl_owner_t id));
+
+extern const struct file_operations aufs_file_fop;
+int au_do_open_nondir(struct file *file, int flags, struct file *h_file);
+int aufs_release_nondir(struct inode *inode __maybe_unused, struct file *file);
-+struct file *au_read_pre(struct file *file, int keep_fi);
++struct file *au_read_pre(struct file *file, int keep_fi, unsigned int lsc);
+
+/* finfo.c */
+void au_hfput(struct au_hfile *hf, int execed);
+ */
+AuSimpleRwsemFuncs(fi, struct file *f, &au_fi(f)->fi_rwsem);
+
++/* lock subclass for finfo */
++enum {
++ AuLsc_FI_1,
++ AuLsc_FI_2
++};
++
++static inline void fi_read_lock_nested(struct file *f, unsigned int lsc)
++{
++ au_rw_read_lock_nested(&au_fi(f)->fi_rwsem, lsc);
++}
++
++static inline void fi_write_lock_nested(struct file *f, unsigned int lsc)
++{
++ au_rw_write_lock_nested(&au_fi(f)->fi_rwsem, lsc);
++}
++
++/*
++ * fi_read_lock_1, fi_write_lock_1,
++ * fi_read_lock_2, fi_write_lock_2
++ */
++#define AuReadLockFunc(name) \
++static inline void fi_read_lock_##name(struct file *f) \
++{ fi_read_lock_nested(f, AuLsc_FI_##name); }
++
++#define AuWriteLockFunc(name) \
++static inline void fi_write_lock_##name(struct file *f) \
++{ fi_write_lock_nested(f, AuLsc_FI_##name); }
++
++#define AuRWLockFuncs(name) \
++ AuReadLockFunc(name) \
++ AuWriteLockFunc(name)
++
++AuRWLockFuncs(1);
++AuRWLockFuncs(2);
++
++#undef AuReadLockFunc
++#undef AuWriteLockFunc
++#undef AuRWLockFuncs
++
+#define FiMustNoWaiters(f) AuRwMustNoWaiters(&au_fi(f)->fi_rwsem)
+#define FiMustAnyLock(f) AuRwMustAnyLock(&au_fi(f)->fi_rwsem)
+#define FiMustWriteLock(f) AuRwMustWriteLock(&au_fi(f)->fi_rwsem)
+#endif /* __AUFS_FILE_H__ */
diff -urN /usr/share/empty/fs/aufs/finfo.c linux/fs/aufs/finfo.c
--- /usr/share/empty/fs/aufs/finfo.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/finfo.c 2017-03-02 14:24:13.860255635 +0100
++++ linux/fs/aufs/finfo.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/f_op.c linux/fs/aufs/f_op.c
--- /usr/share/empty/fs/aufs/f_op.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/f_op.c 2017-03-02 14:24:13.860255635 +0100
-@@ -0,0 +1,723 @@
++++ linux/fs/aufs/f_op.c 2017-05-06 22:16:52.778220093 +0200
+@@ -0,0 +1,819 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+ */
+
+/* Callers should call au_read_post() or fput() in the end */
-+struct file *au_read_pre(struct file *file, int keep_fi)
++struct file *au_read_pre(struct file *file, int keep_fi, unsigned int lsc)
+{
+ struct file *h_file;
+ int err;
+
-+ err = au_reval_and_lock_fdi(file, au_reopen_nondir, /*wlock*/0);
++ err = au_reval_and_lock_fdi(file, au_reopen_nondir, /*wlock*/0, lsc);
+ if (!err) {
+ di_read_unlock(file->f_path.dentry, AuLock_IR);
+ h_file = au_hf_top(file);
+}
+
+struct au_write_pre {
++ /* input */
++ unsigned int lsc;
++
++ /* output */
+ blkcnt_t blks;
+ aufs_bindex_t btop;
+};
+ struct file *h_file;
+ struct dentry *dentry;
+ int err;
++ unsigned int lsc;
+ struct au_pin pin;
+
-+ err = au_reval_and_lock_fdi(file, au_reopen_nondir, /*wlock*/1);
++ lsc = 0;
++ if (wpre)
++ lsc = wpre->lsc;
++ err = au_reval_and_lock_fdi(file, au_reopen_nondir, /*wlock*/1, lsc);
+ h_file = ERR_PTR(err);
+ if (unlikely(err))
+ goto out;
+ sb = inode->i_sb;
+ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW);
+
-+ h_file = au_read_pre(file, /*keep_fi*/0);
++ h_file = au_read_pre(file, /*keep_fi*/0, /*lsc*/0);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ goto out;
+ inode = file_inode(file);
+ au_mtx_and_read_lock(inode);
+
++ wpre.lsc = 0;
+ h_file = au_write_pre(file, /*do_ready*/1, &wpre);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ sb = inode->i_sb;
+ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW);
+
-+ h_file = au_read_pre(file, /*keep_fi*/1);
++ h_file = au_read_pre(file, /*keep_fi*/1, /*lsc*/0);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ goto out;
+ inode = file_inode(file);
+ au_mtx_and_read_lock(inode);
+
++ wpre.lsc = 0;
+ h_file = au_write_pre(file, /*do_ready*/1, &wpre);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ sb = inode->i_sb;
+ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW);
+
-+ h_file = au_read_pre(file, /*keep_fi*/0);
++ h_file = au_read_pre(file, /*keep_fi*/0, /*lsc*/0);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ goto out;
+ inode = file_inode(file);
+ au_mtx_and_read_lock(inode);
+
++ wpre.lsc = 0;
+ h_file = au_write_pre(file, /*do_ready*/1, &wpre);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ inode = file_inode(file);
+ au_mtx_and_read_lock(inode);
+
++ wpre.lsc = 0;
+ h_file = au_write_pre(file, /*do_ready*/1, &wpre);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ return err;
+}
+
++static ssize_t aufs_copy_file_range(struct file *src, loff_t src_pos,
++ struct file *dst, loff_t dst_pos,
++ size_t len, unsigned int flags)
++{
++ ssize_t err;
++ struct au_write_pre wpre;
++ enum { SRC, DST };
++ struct {
++ struct inode *inode;
++ struct file *h_file;
++ struct super_block *h_sb;
++ } a[2];
++#define a_src a[SRC]
++#define a_dst a[DST]
++
++ err = -EINVAL;
++ a_src.inode = file_inode(src);
++ if (unlikely(!S_ISREG(a_src.inode->i_mode)))
++ goto out;
++ a_dst.inode = file_inode(dst);
++ if (unlikely(!S_ISREG(a_dst.inode->i_mode)))
++ goto out;
++
++ au_mtx_and_read_lock(a_dst.inode);
++ /*
++ * in order to match the order in di_write_lock2_{child,parent}(),
++ * use f_path.dentry for this comparision.
++ */
++ if (src->f_path.dentry < dst->f_path.dentry) {
++ a_src.h_file = au_read_pre(src, /*keep_fi*/1, AuLsc_FI_1);
++ err = PTR_ERR(a_src.h_file);
++ if (IS_ERR(a_src.h_file))
++ goto out_si;
++
++ wpre.lsc = AuLsc_FI_2;
++ a_dst.h_file = au_write_pre(dst, /*do_ready*/1, &wpre);
++ err = PTR_ERR(a_dst.h_file);
++ if (IS_ERR(a_dst.h_file)) {
++ au_read_post(a_src.inode, a_src.h_file);
++ goto out_si;
++ }
++ } else {
++ wpre.lsc = AuLsc_FI_1;
++ a_dst.h_file = au_write_pre(dst, /*do_ready*/1, &wpre);
++ err = PTR_ERR(a_dst.h_file);
++ if (IS_ERR(a_dst.h_file))
++ goto out_si;
++
++ a_src.h_file = au_read_pre(src, /*keep_fi*/1, AuLsc_FI_2);
++ err = PTR_ERR(a_src.h_file);
++ if (IS_ERR(a_src.h_file)) {
++ au_write_post(a_dst.inode, a_dst.h_file, &wpre,
++ /*written*/0);
++ goto out_si;
++ }
++ }
++
++ err = -EXDEV;
++ a_src.h_sb = file_inode(a_src.h_file)->i_sb;
++ a_dst.h_sb = file_inode(a_dst.h_file)->i_sb;
++ if (unlikely(a_src.h_sb != a_dst.h_sb)) {
++ AuDbgFile(src);
++ AuDbgFile(dst);
++ goto out_file;
++ }
++
++ err = vfsub_copy_file_range(a_src.h_file, src_pos, a_dst.h_file,
++ dst_pos, len, flags);
++
++out_file:
++ au_write_post(a_dst.inode, a_dst.h_file, &wpre, err);
++ fi_read_unlock(src);
++ au_read_post(a_src.inode, a_src.h_file);
++out_si:
++ si_read_unlock(a_dst.inode->i_sb);
++ inode_unlock(a_dst.inode);
++out:
++ return err;
++#undef a_src
++#undef a_dst
++}
++
+/* ---------------------------------------------------------------------- */
+
+/*
+ * au_flag_conv(vma->vm_flags));
+ */
+ if (!err)
-+ err = h_file->f_op->mmap(h_file, vma);
++ err = call_mmap(h_file, vma);
+ if (!err) {
+ au_vm_prfile_set(vma, file);
+ fsstack_copy_attr_atime(inode, file_inode(h_file));
+ inode = file_inode(file);
+ au_mtx_and_read_lock(inode);
+
++ wpre.lsc = 0;
+ h_file = au_write_pre(file, /*do_ready*/1, &wpre);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ sb = file->f_path.dentry->d_sb;
+ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW);
+
-+ h_file = au_read_pre(file, /*keep_fi*/0);
++ h_file = au_read_pre(file, /*keep_fi*/0, /*lsc*/0);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ goto out;
+ sb = file->f_path.dentry->d_sb;
+ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW);
+
-+ h_file = au_read_pre(file, /*keep_fi*/0);
++ h_file = au_read_pre(file, /*keep_fi*/0, /*lsc*/0);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ goto out;
+ .aio_splice_write = aufs_aio_splice_write,
+ .aio_splice_read = aufs_aio_splice_read,
+#endif
-+ .fallocate = aufs_fallocate
++ .fallocate = aufs_fallocate,
++ .copy_file_range = aufs_copy_file_range
+};
diff -urN /usr/share/empty/fs/aufs/fstype.h linux/fs/aufs/fstype.h
--- /usr/share/empty/fs/aufs/fstype.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/fstype.h 2017-03-02 14:24:13.860255635 +0100
++++ linux/fs/aufs/fstype.h 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,400 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_FSTYPE_H__ */
diff -urN /usr/share/empty/fs/aufs/hfsnotify.c linux/fs/aufs/hfsnotify.c
--- /usr/share/empty/fs/aufs/hfsnotify.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/hfsnotify.c 2017-03-02 14:24:13.860255635 +0100
++++ linux/fs/aufs/hfsnotify.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,287 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+};
diff -urN /usr/share/empty/fs/aufs/hfsplus.c linux/fs/aufs/hfsplus.c
--- /usr/share/empty/fs/aufs/hfsplus.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/hfsplus.c 2017-03-02 14:24:13.860255635 +0100
++++ linux/fs/aufs/hfsplus.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2010-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/hnotify.c linux/fs/aufs/hnotify.c
--- /usr/share/empty/fs/aufs/hnotify.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/hnotify.c 2017-03-02 14:24:13.860255635 +0100
++++ linux/fs/aufs/hnotify.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,723 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/iinfo.c linux/fs/aufs/iinfo.c
--- /usr/share/empty/fs/aufs/iinfo.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/iinfo.c 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/iinfo.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,285 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/inode.c linux/fs/aufs/inode.c
--- /usr/share/empty/fs/aufs/inode.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/inode.c 2017-03-02 14:24:13.863589061 +0100
-@@ -0,0 +1,519 @@
++++ linux/fs/aufs/inode.c 2017-05-06 22:16:52.781553511 +0200
+@@ -0,0 +1,527 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+int au_ino(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino,
+ unsigned int d_type, ino_t *ino)
+{
-+ int err;
-+ struct mutex *mtx;
++ int err, idx;
++ const int isnondir = d_type != DT_DIR;
+
+ /* prevent hardlinked inode number from race condition */
-+ mtx = NULL;
-+ if (d_type != DT_DIR) {
-+ mtx = &au_sbr(sb, bindex)->br_xino.xi_nondir_mtx;
-+ mutex_lock(mtx);
++ if (isnondir) {
++ err = au_xinondir_enter(sb, bindex, h_ino, &idx);
++ if (unlikely(err))
++ goto out;
+ }
++
+ err = au_xino_read(sb, bindex, h_ino, ino);
+ if (unlikely(err))
-+ goto out;
++ goto out_xinondir;
+
+ if (!*ino) {
+ err = -EIO;
+ *ino = au_xino_new_ino(sb);
+ if (unlikely(!*ino))
-+ goto out;
++ goto out_xinondir;
+ err = au_xino_write(sb, bindex, h_ino, *ino);
+ if (unlikely(err))
-+ goto out;
++ goto out_xinondir;
+ }
+
++out_xinondir:
++ if (isnondir && idx >= 0)
++ au_xinondir_leave(sb, bindex, h_ino, idx);
+out:
-+ if (mtx)
-+ mutex_unlock(mtx);
+ return err;
+}
+
+ struct inode *inode, *h_inode;
+ struct dentry *h_dentry;
+ struct super_block *sb;
-+ struct mutex *mtx;
+ ino_t h_ino, ino;
-+ int err;
++ int err, idx, hlinked;
+ aufs_bindex_t btop;
+
+ sb = dentry->d_sb;
+ h_dentry = au_h_dptr(dentry, btop);
+ h_inode = d_inode(h_dentry);
+ h_ino = h_inode->i_ino;
++ hlinked = !d_is_dir(h_dentry) && h_inode->i_nlink > 1;
+
++new_ino:
+ /*
+ * stop 'race'-ing between hardlinks under different
+ * parents.
+ */
-+ mtx = NULL;
-+ if (!d_is_dir(h_dentry))
-+ mtx = &au_sbr(sb, btop)->br_xino.xi_nondir_mtx;
++ if (hlinked) {
++ err = au_xinondir_enter(sb, btop, h_ino, &idx);
++ inode = ERR_PTR(err);
++ if (unlikely(err))
++ goto out;
++ }
+
-+new_ino:
-+ if (mtx)
-+ mutex_lock(mtx);
+ err = au_xino_read(sb, btop, h_ino, &ino);
+ inode = ERR_PTR(err);
+ if (unlikely(err))
-+ goto out;
++ goto out_xinondir;
+
+ if (!ino) {
+ ino = au_xino_new_ino(sb);
+ if (unlikely(!ino)) {
+ inode = ERR_PTR(-EIO);
-+ goto out;
++ goto out_xinondir;
+ }
+ }
+
+ inode = au_iget_locked(sb, ino);
+ err = PTR_ERR(inode);
+ if (IS_ERR(inode))
-+ goto out;
++ goto out_xinondir;
+
+ AuDbg("%lx, new %d\n", inode->i_state, !!(inode->i_state & I_NEW));
+ if (inode->i_state & I_NEW) {
+ err = set_inode(inode, dentry);
+ if (!err) {
+ unlock_new_inode(inode);
-+ goto out; /* success */
++ goto out_xinondir; /* success */
+ }
+
+ /*
+ * horrible race condition between lookup, readdir and copyup
+ * (or something).
+ */
-+ if (mtx)
-+ mutex_unlock(mtx);
++ if (hlinked && idx >= 0)
++ au_xinondir_leave(sb, btop, h_ino, idx);
+ err = reval_inode(inode, dentry);
+ if (unlikely(err < 0)) {
-+ mtx = NULL;
++ hlinked = 0;
+ goto out_iput;
+ }
-+
-+ if (!err) {
-+ mtx = NULL;
++ if (!err)
+ goto out; /* success */
-+ } else if (mtx)
-+ mutex_lock(mtx);
++ else if (hlinked && idx >= 0) {
++ err = au_xinondir_enter(sb, btop, h_ino, &idx);
++ if (unlikely(err)) {
++ iput(inode);
++ inode = ERR_PTR(err);
++ goto out;
++ }
++ }
+ }
+
+ if (unlikely(au_test_fs_unique_ino(h_inode)))
+ err = au_xino_write(sb, btop, h_ino, /*ino*/0);
+ if (!err) {
+ iput(inode);
-+ if (mtx)
-+ mutex_unlock(mtx);
++ if (hlinked && idx >= 0)
++ au_xinondir_leave(sb, btop, h_ino, idx);
+ goto new_ino;
+ }
+
+out_iput:
+ iput(inode);
+ inode = ERR_PTR(err);
++out_xinondir:
++ if (hlinked && idx >= 0)
++ au_xinondir_leave(sb, btop, h_ino, idx);
+out:
-+ if (mtx)
-+ mutex_unlock(mtx);
+ return inode;
+}
+
+}
diff -urN /usr/share/empty/fs/aufs/inode.h linux/fs/aufs/inode.h
--- /usr/share/empty/fs/aufs/inode.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/inode.h 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/inode.h 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,692 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_INODE_H__ */
diff -urN /usr/share/empty/fs/aufs/ioctl.c linux/fs/aufs/ioctl.c
--- /usr/share/empty/fs/aufs/ioctl.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/ioctl.c 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/ioctl.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,219 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif
diff -urN /usr/share/empty/fs/aufs/i_op_add.c linux/fs/aufs/i_op_add.c
--- /usr/share/empty/fs/aufs/i_op_add.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/i_op_add.c 2017-03-02 14:24:13.863589061 +0100
-@@ -0,0 +1,928 @@
++++ linux/fs/aufs/i_op_add.c 2017-05-06 22:16:52.778220093 +0200
+@@ -0,0 +1,920 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+ goto out_parent;
+
+ h_parent = au_h_dptr(parent, bindex);
-+ err = inode_permission(d_inode(h_parent), MAY_WRITE | MAY_EXEC);
-+ if (unlikely(err))
-+ goto out_mnt;
-+
-+ err = -ENOMEM;
-+ h_dentry = d_alloc(h_parent, &dentry->d_name);
-+ if (unlikely(!h_dentry))
++ h_dentry = vfs_tmpfile(h_parent, mode, /*open_flag*/0);
++ if (IS_ERR(h_dentry)) {
++ err = PTR_ERR(h_dentry);
+ goto out_mnt;
-+
-+ err = h_dir->i_op->tmpfile(h_dir, h_dentry, mode);
-+ if (unlikely(err))
-+ goto out_dentry;
++ }
+
+ au_set_dbtop(dentry, bindex);
+ au_set_dbbot(dentry, bindex);
+ if (au_ibtop(dir) == au_dbtop(dentry))
+ au_cpup_attr_timesizes(dir);
+ }
-+
-+out_dentry:
+ dput(h_dentry);
++
+out_mnt:
+ vfsub_mnt_drop_write(h_mnt);
+out_parent:
+}
diff -urN /usr/share/empty/fs/aufs/i_op.c linux/fs/aufs/i_op.c
--- /usr/share/empty/fs/aufs/i_op.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/i_op.c 2017-03-02 14:24:13.860255635 +0100
-@@ -0,0 +1,1448 @@
++++ linux/fs/aufs/i_op.c 2017-05-06 22:16:52.778220093 +0200
+@@ -0,0 +1,1452 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+ /* currently ftruncate(2) only */
+ AuDebugOn(!d_is_reg(dentry));
+ file = ia->ia_file;
-+ err = au_reval_and_lock_fdi(file, au_reopen_nondir, /*wlock*/1);
++ err = au_reval_and_lock_fdi(file, au_reopen_nondir, /*wlock*/1,
++ /*fi_lsc*/0);
+ if (unlikely(err))
+ goto out_si;
+ ia->ia_file = au_hf_top(file);
+ return err;
+}
+
-+static int aufs_getattr(struct vfsmount *mnt __maybe_unused,
-+ struct dentry *dentry, struct kstat *st)
++static int aufs_getattr(const struct path *path, struct kstat *st,
++ u32 request, unsigned int query)
+{
+ int err;
+ unsigned char positive;
+ struct path h_path;
++ struct dentry *dentry;
+ struct inode *inode;
+ struct super_block *sb;
+
++ dentry = path->dentry;
+ inode = d_inode(dentry);
+ sb = dentry->d_sb;
+ err = si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLM);
+
+ positive = d_is_positive(h_path.dentry);
+ if (positive)
-+ err = vfs_getattr(&h_path, st);
++ /* no vfsub version */
++ err = vfs_getattr(&h_path, st, request, query);
+ if (!err) {
+ if (positive)
+ au_refresh_iattr(inode, st,
+};
diff -urN /usr/share/empty/fs/aufs/i_op_del.c linux/fs/aufs/i_op_del.c
--- /usr/share/empty/fs/aufs/i_op_del.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/i_op_del.c 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/i_op_del.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,511 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/i_op_ren.c linux/fs/aufs/i_op_ren.c
--- /usr/share/empty/fs/aufs/i_op_ren.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/i_op_ren.c 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/i_op_ren.c 2017-05-06 22:16:52.778220093 +0200
@@ -0,0 +1,1165 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/Kconfig linux/fs/aufs/Kconfig
--- /usr/share/empty/fs/aufs/Kconfig 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/Kconfig 2016-10-09 16:55:36.482701377 +0200
++++ linux/fs/aufs/Kconfig 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,185 @@
+config AUFS_FS
+ tristate "Aufs (Advanced multi layered unification filesystem) support"
+endif
diff -urN /usr/share/empty/fs/aufs/loop.c linux/fs/aufs/loop.c
--- /usr/share/empty/fs/aufs/loop.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/loop.c 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/loop.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/loop.h linux/fs/aufs/loop.h
--- /usr/share/empty/fs/aufs/loop.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/loop.h 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/loop.h 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_LOOP_H__ */
diff -urN /usr/share/empty/fs/aufs/magic.mk linux/fs/aufs/magic.mk
--- /usr/share/empty/fs/aufs/magic.mk 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/magic.mk 2016-10-09 16:55:36.492701639 +0200
++++ linux/fs/aufs/magic.mk 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,30 @@
+
+# defined in ${srctree}/fs/fuse/inode.c
+endif
diff -urN /usr/share/empty/fs/aufs/Makefile linux/fs/aufs/Makefile
--- /usr/share/empty/fs/aufs/Makefile 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/Makefile 2016-10-09 16:55:36.486034798 +0200
++++ linux/fs/aufs/Makefile 2017-05-06 22:16:52.774886674 +0200
@@ -0,0 +1,44 @@
+
+include ${src}/magic.mk
+aufs-$(CONFIG_AUFS_MAGIC_SYSRQ) += sysrq.o
diff -urN /usr/share/empty/fs/aufs/module.c linux/fs/aufs/module.c
--- /usr/share/empty/fs/aufs/module.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/module.c 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/module.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,333 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+module_exit(aufs_exit);
diff -urN /usr/share/empty/fs/aufs/module.h linux/fs/aufs/module.h
--- /usr/share/empty/fs/aufs/module.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/module.h 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/module.h 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_MODULE_H__ */
diff -urN /usr/share/empty/fs/aufs/mvdown.c linux/fs/aufs/mvdown.c
--- /usr/share/empty/fs/aufs/mvdown.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/mvdown.c 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/mvdown.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,704 @@
+/*
+ * Copyright (C) 2011-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/opts.c linux/fs/aufs/opts.c
--- /usr/share/empty/fs/aufs/opts.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/opts.c 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/opts.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,1848 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/opts.h linux/fs/aufs/opts.h
--- /usr/share/empty/fs/aufs/opts.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/opts.h 2017-03-02 14:24:13.863589061 +0100
++++ linux/fs/aufs/opts.h 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_OPTS_H__ */
diff -urN /usr/share/empty/fs/aufs/plink.c linux/fs/aufs/plink.c
--- /usr/share/empty/fs/aufs/plink.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/plink.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/plink.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,514 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/poll.c linux/fs/aufs/poll.c
--- /usr/share/empty/fs/aufs/poll.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/poll.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/poll.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ sb = file->f_path.dentry->d_sb;
+ si_read_lock(sb, AuLock_FLUSH | AuLock_NOPLMW);
+
-+ h_file = au_read_pre(file, /*keep_fi*/0);
++ h_file = au_read_pre(file, /*keep_fi*/0, /*lsc*/0);
+ err = PTR_ERR(h_file);
+ if (IS_ERR(h_file))
+ goto out;
+}
diff -urN /usr/share/empty/fs/aufs/posix_acl.c linux/fs/aufs/posix_acl.c
--- /usr/share/empty/fs/aufs/posix_acl.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/posix_acl.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/posix_acl.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2014-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/procfs.c linux/fs/aufs/procfs.c
--- /usr/share/empty/fs/aufs/procfs.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/procfs.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/procfs.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2010-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/rdu.c linux/fs/aufs/rdu.c
--- /usr/share/empty/fs/aufs/rdu.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/rdu.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/rdu.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,381 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif
diff -urN /usr/share/empty/fs/aufs/rwsem.h linux/fs/aufs/rwsem.h
--- /usr/share/empty/fs/aufs/rwsem.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/rwsem.h 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/rwsem.h 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_RWSEM_H__ */
diff -urN /usr/share/empty/fs/aufs/sbinfo.c linux/fs/aufs/sbinfo.c
--- /usr/share/empty/fs/aufs/sbinfo.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/sbinfo.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/sbinfo.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,304 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/spl.h linux/fs/aufs/spl.h
--- /usr/share/empty/fs/aufs/spl.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/spl.h 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/spl.h 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_SPL_H__ */
diff -urN /usr/share/empty/fs/aufs/super.c linux/fs/aufs/super.c
--- /usr/share/empty/fs/aufs/super.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/super.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/super.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,1044 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+};
diff -urN /usr/share/empty/fs/aufs/super.h linux/fs/aufs/super.h
--- /usr/share/empty/fs/aufs/super.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/super.h 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/super.h 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,617 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_SUPER_H__ */
diff -urN /usr/share/empty/fs/aufs/sysaufs.c linux/fs/aufs/sysaufs.c
--- /usr/share/empty/fs/aufs/sysaufs.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/sysaufs.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/sysaufs.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/sysaufs.h linux/fs/aufs/sysaufs.h
--- /usr/share/empty/fs/aufs/sysaufs.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/sysaufs.h 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/sysaufs.h 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __SYSAUFS_H__ */
diff -urN /usr/share/empty/fs/aufs/sysfs.c linux/fs/aufs/sysfs.c
--- /usr/share/empty/fs/aufs/sysfs.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/sysfs.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/sysfs.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,376 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/sysrq.c linux/fs/aufs/sysrq.c
--- /usr/share/empty/fs/aufs/sysrq.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/sysrq.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/sysrq.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/vdir.c linux/fs/aufs/vdir.c
--- /usr/share/empty/fs/aufs/vdir.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/vdir.c 2017-03-02 14:24:13.866922487 +0100
++++ linux/fs/aufs/vdir.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,900 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/vfsub.c linux/fs/aufs/vfsub.c
--- /usr/share/empty/fs/aufs/vfsub.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/vfsub.c 2017-03-02 14:24:13.870255912 +0100
++++ linux/fs/aufs/vfsub.c 2017-05-06 22:16:52.781553511 +0200
@@ -0,0 +1,899 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ h_sb = h_path->dentry->d_sb;
+ *did = (!au_test_fs_remote(h_sb) && au_test_fs_refresh_iattr(h_sb));
+ if (*did)
-+ err = vfs_getattr(h_path, &st);
++ err = vfsub_getattr(h_path, &st);
+
+ return err;
+}
+}
diff -urN /usr/share/empty/fs/aufs/vfsub.h linux/fs/aufs/vfsub.h
--- /usr/share/empty/fs/aufs/vfsub.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/vfsub.h 2017-03-02 14:24:13.870255912 +0100
-@@ -0,0 +1,318 @@
++++ linux/fs/aufs/vfsub.h 2017-05-06 22:16:52.781553511 +0200
+@@ -0,0 +1,353 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+ struct file *h_file);
+int vfsub_fsync(struct file *file, struct path *path, int datasync);
+
++/*
++ * re-use branch fs's ioctl(FICLONE) while aufs itself doesn't support such
++ * ioctl.
++ */
++static inline int vfsub_clone_file_range(struct file *src, struct file *dst,
++ u64 len)
++{
++ int err;
++
++ lockdep_off();
++ err = vfs_clone_file_range(src, 0, dst, 0, len);
++ lockdep_on();
++
++ return err;
++}
++
++/* copy_file_range(2) is a systemcall */
++static inline ssize_t vfsub_copy_file_range(struct file *src, loff_t src_pos,
++ struct file *dst, loff_t dst_pos,
++ size_t len, unsigned int flags)
++{
++ ssize_t ssz;
++
++ lockdep_off();
++ ssz = vfs_copy_file_range(src, src_pos, dst, dst_pos, len, flags);
++ lockdep_on();
++
++ return ssz;
++}
++
+/* ---------------------------------------------------------------------- */
+
+static inline loff_t vfsub_llseek(struct file *file, loff_t offset, int origin)
+int vfsub_unlink(struct inode *dir, struct path *path,
+ struct inode **delegated_inode, int force);
+
++static inline int vfsub_getattr(const struct path *path, struct kstat *st)
++{
++ return vfs_getattr(path, st, STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT);
++}
++
+/* ---------------------------------------------------------------------- */
+
+static inline int vfsub_setxattr(struct dentry *dentry, const char *name,
+#endif /* __AUFS_VFSUB_H__ */
diff -urN /usr/share/empty/fs/aufs/wbr_policy.c linux/fs/aufs/wbr_policy.c
--- /usr/share/empty/fs/aufs/wbr_policy.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/wbr_policy.c 2017-03-02 14:24:13.870255912 +0100
++++ linux/fs/aufs/wbr_policy.c 2017-05-06 22:16:52.784886929 +0200
@@ -0,0 +1,830 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+};
diff -urN /usr/share/empty/fs/aufs/whout.c linux/fs/aufs/whout.c
--- /usr/share/empty/fs/aufs/whout.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/whout.c 2017-03-02 14:24:13.870255912 +0100
++++ linux/fs/aufs/whout.c 2017-05-06 22:16:52.784886929 +0200
@@ -0,0 +1,1061 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/whout.h linux/fs/aufs/whout.h
--- /usr/share/empty/fs/aufs/whout.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/whout.h 2017-03-02 14:24:13.870255912 +0100
++++ linux/fs/aufs/whout.h 2017-05-06 22:16:52.784886929 +0200
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_WHOUT_H__ */
diff -urN /usr/share/empty/fs/aufs/wkq.c linux/fs/aufs/wkq.c
--- /usr/share/empty/fs/aufs/wkq.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/wkq.c 2017-03-02 14:24:13.870255912 +0100
++++ linux/fs/aufs/wkq.c 2017-05-06 22:16:52.784886929 +0200
@@ -0,0 +1,213 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/wkq.h linux/fs/aufs/wkq.h
--- /usr/share/empty/fs/aufs/wkq.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/wkq.h 2017-03-02 14:24:13.870255912 +0100
++++ linux/fs/aufs/wkq.h 2017-05-06 22:16:52.784886929 +0200
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+#endif /* __AUFS_WKQ_H__ */
diff -urN /usr/share/empty/fs/aufs/xattr.c linux/fs/aufs/xattr.c
--- /usr/share/empty/fs/aufs/xattr.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/xattr.c 2017-03-02 14:24:13.870255912 +0100
++++ linux/fs/aufs/xattr.c 2017-05-06 22:16:52.784886929 +0200
@@ -0,0 +1,357 @@
+/*
+ * Copyright (C) 2014-2017 Junjiro R. Okajima
+}
diff -urN /usr/share/empty/fs/aufs/xino.c linux/fs/aufs/xino.c
--- /usr/share/empty/fs/aufs/xino.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/xino.c 2017-03-02 14:24:13.870255912 +0100
-@@ -0,0 +1,1318 @@
++++ linux/fs/aufs/xino.c 2017-05-06 22:16:52.784886929 +0200
+@@ -0,0 +1,1415 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+ *
+out:
+ return err;
+}
++
++/* ---------------------------------------------------------------------- */
++
++void au_xinondir_leave(struct super_block *sb, aufs_bindex_t bindex,
++ ino_t h_ino, int idx)
++{
++ struct au_xino_file *xino;
++
++ AuDebugOn(!au_opt_test(au_mntflags(sb), XINO));
++ xino = &au_sbr(sb, bindex)->br_xino;
++ AuDebugOn(idx < 0 || xino->xi_nondir.total <= idx);
++
++ spin_lock(&xino->xi_nondir.spin);
++ AuDebugOn(xino->xi_nondir.array[idx] != h_ino);
++ xino->xi_nondir.array[idx] = 0;
++ spin_unlock(&xino->xi_nondir.spin);
++ wake_up_all(&xino->xi_nondir.wqh);
++}
++
++static int au_xinondir_find(struct au_xino_file *xino, ino_t h_ino)
++{
++ int found, total, i;
++
++ found = -1;
++ total = xino->xi_nondir.total;
++ for (i = 0; i < total; i++) {
++ if (xino->xi_nondir.array[i] != h_ino)
++ continue;
++ found = i;
++ break;
++ }
++
++ return found;
++}
++
++static int au_xinondir_expand(struct au_xino_file *xino)
++{
++ int err, sz;
++ ino_t *p;
++
++ BUILD_BUG_ON(KMALLOC_MAX_SIZE > INT_MAX);
++
++ err = -ENOMEM;
++ sz = xino->xi_nondir.total * sizeof(ino_t);
++ if (unlikely(sz > KMALLOC_MAX_SIZE / 2))
++ goto out;
++ p = au_kzrealloc(xino->xi_nondir.array, sz, sz << 1, GFP_ATOMIC,
++ /*may_shrink*/0);
++ if (p) {
++ xino->xi_nondir.array = p;
++ xino->xi_nondir.total <<= 1;
++ AuDbg("xi_nondir.total %d\n", xino->xi_nondir.total);
++ err = 0;
++ }
++
++out:
++ return err;
++}
++
++int au_xinondir_enter(struct super_block *sb, aufs_bindex_t bindex, ino_t h_ino,
++ int *idx)
++{
++ int err, found, empty;
++ struct au_xino_file *xino;
++
++ err = 0;
++ *idx = -1;
++ if (!au_opt_test(au_mntflags(sb), XINO))
++ goto out; /* no xino */
++
++ xino = &au_sbr(sb, bindex)->br_xino;
++
++again:
++ spin_lock(&xino->xi_nondir.spin);
++ found = au_xinondir_find(xino, h_ino);
++ if (found == -1) {
++ empty = au_xinondir_find(xino, /*h_ino*/0);
++ if (empty == -1) {
++ empty = xino->xi_nondir.total;
++ err = au_xinondir_expand(xino);
++ if (unlikely(err))
++ goto out_unlock;
++ }
++ xino->xi_nondir.array[empty] = h_ino;
++ *idx = empty;
++ } else {
++ spin_unlock(&xino->xi_nondir.spin);
++ wait_event(xino->xi_nondir.wqh,
++ xino->xi_nondir.array[found] != h_ino);
++ goto again;
++ }
++
++out_unlock:
++ spin_unlock(&xino->xi_nondir.spin);
++out:
++ return err;
++}
diff -urN /usr/share/empty/include/uapi/linux/aufs_type.h linux/include/uapi/linux/aufs_type.h
--- /usr/share/empty/include/uapi/linux/aufs_type.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/include/uapi/linux/aufs_type.h 2017-03-02 14:24:13.870255912 +0100
++++ linux/include/uapi/linux/aufs_type.h 2017-05-06 22:16:52.784886929 +0200
@@ -0,0 +1,419 @@
+/*
+ * Copyright (C) 2005-2017 Junjiro R. Okajima
+
+#include <linux/limits.h>
+
-+#define AUFS_VERSION "4.x-rcN-20170220"
++#define AUFS_VERSION "4.x-rcN-20170410"
+
+/* todo? move this to linux-2.6.19/include/magic.h */
+#define AUFS_SUPER_MAGIC ('a' << 24 | 'u' << 16 | 'f' << 8 | 's')
aufs4.x-rcN loopback patch
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
-index b63f68b..c0f4b8c 100644
+index cf39138..29b33b2 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -551,7 +551,7 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq)
unsigned lo_blocksize;
void *key_data;
diff --git a/fs/aufs/f_op.c b/fs/aufs/f_op.c
-index 6da0f10..d211f9e 100644
+index 7e03507..f31af1d 100644
--- a/fs/aufs/f_op.c
+++ b/fs/aufs/f_op.c
-@@ -351,7 +351,7 @@ static ssize_t aufs_read_iter(struct kiocb *kio, struct iov_iter *iov_iter)
+@@ -360,7 +360,7 @@ static ssize_t aufs_read_iter(struct kiocb *kio, struct iov_iter *iov_iter)
if (IS_ERR(h_file))
goto out;
/* ---------------------------------------------------------------------- */
diff --git a/include/linux/fs.h b/include/linux/fs.h
-index a808c7c..214b51f 100644
+index 3668627..2cbc8fe 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
-@@ -1791,6 +1791,10 @@ struct super_operations {
+@@ -1810,6 +1810,10 @@ struct super_operations {
struct shrink_control *);
long (*free_cached_objects)(struct super_block *,
struct shrink_control *);
projects / packages / kernel.git / commitdiff