SPDX-License-Identifier: GPL-2.0
-aufs5.11 kbuild patch
+aufs5.12 kbuild patch
diff --git a/fs/Kconfig b/fs/Kconfig
-index da524c4d7b7e0..50ab89368c2b5 100644
+index a55bda4233bbe..c4984b5bf340f 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -288,6 +288,7 @@ source "fs/sysv/Kconfig"
endif # MISC_FILESYSTEMS
diff --git a/fs/Makefile b/fs/Makefile
-index 999d1a23f036c..0cd76857ca764 100644
+index 3215fe205256d..7218277473b8f 100644
--- a/fs/Makefile
+++ b/fs/Makefile
-@@ -136,3 +136,4 @@ obj-$(CONFIG_EFIVAR_FS) += efivarfs/
+@@ -135,3 +135,4 @@ obj-$(CONFIG_EFIVAR_FS) += efivarfs/
obj-$(CONFIG_EROFS_FS) += erofs/
obj-$(CONFIG_VBOXSF_FS) += vboxsf/
obj-$(CONFIG_ZONEFS_FS) += zonefs/
+obj-$(CONFIG_AUFS_FS) += aufs/
SPDX-License-Identifier: GPL-2.0
-aufs5.11 base patch
+aufs5.12 base patch
diff --git a/MAINTAINERS b/MAINTAINERS
-index bfc1b86e3e733..cf773a5624338 100644
+index 9450e052f1b13..f7db6edba5a37 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
-@@ -3017,6 +3017,19 @@ F: include/linux/audit.h
+@@ -2992,6 +2992,19 @@ F: include/linux/audit.h
F: include/uapi/linux/audit.h
F: kernel/audit*
M: Miguel Ojeda <ojeda@kernel.org>
S: Maintained
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
-index e5ff328f09175..39d539df0349d 100644
+index a370cde3ddd49..01ca256575fb2 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -761,6 +761,24 @@ static int loop_change_fd(struct loop_device *lo, struct block_device *bdev,
static ssize_t loop_attr_show(struct device *dev, char *page,
diff --git a/fs/dcache.c b/fs/dcache.c
-index 97e81a844a966..a7522ebbca659 100644
+index 7d24ff7eb2068..3caa7ab4b84f1 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
-@@ -1292,7 +1292,7 @@ enum d_walk_ret {
+@@ -1318,7 +1318,7 @@ enum d_walk_ret {
*
* The @enter() callbacks are called with d_lock held.
*/
{
struct dentry *this_parent;
diff --git a/fs/fcntl.c b/fs/fcntl.c
-index 05b36b28f2e87..e747a47a97da4 100644
+index dfc72f15be7fc..d8a12eb63961d 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
-@@ -32,7 +32,7 @@
+@@ -33,7 +33,7 @@
#define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | O_DIRECT | O_NOATIME)
{
struct inode * inode = file_inode(filp);
int error = 0;
-@@ -63,6 +63,8 @@ static int setfl(int fd, struct file * filp, unsigned long arg)
+@@ -64,6 +64,8 @@ static int setfl(int fd, struct file * filp, unsigned long arg)
if (filp->f_op->check_flags)
error = filp->f_op->check_flags(arg);
return error;
diff --git a/fs/inode.c b/fs/inode.c
-index 6442d97d9a4ab..e4a25c3fa9e55 100644
+index a047ab306f9a8..ba1df0895b69f 100644
--- a/fs/inode.c
+++ b/fs/inode.c
-@@ -1769,7 +1769,7 @@ EXPORT_SYMBOL(generic_update_time);
+@@ -1772,7 +1772,7 @@ EXPORT_SYMBOL(generic_update_time);
* This does the actual work of updating an inodes time or version. Must have
* had called mnt_want_write() before calling this.
*/
if (inode->i_op->update_time)
return inode->i_op->update_time(inode, time, flags);
diff --git a/fs/namespace.c b/fs/namespace.c
-index 9d33909d0f9e3..3e16fc64df8b8 100644
+index 56bb5a5fdc0d0..540679d7e0434 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
-@@ -792,6 +792,12 @@ static inline int check_mnt(struct mount *mnt)
+@@ -807,6 +807,12 @@ static inline int check_mnt(struct mount *mnt)
return mnt->mnt_ns == current->nsproxy->mnt_ns;
}
* vfsmount lock must be held for write
*/
diff --git a/fs/splice.c b/fs/splice.c
-index 866d5c2367b23..55b5356262085 100644
+index 5dbce4dcc1a7d..3e6ba363b7775 100644
--- a/fs/splice.c
+++ b/fs/splice.c
-@@ -756,8 +756,8 @@ static int warn_unsupported(struct file *file, const char *op)
+@@ -759,8 +759,8 @@ static int warn_unsupported(struct file *file, const char *op)
/*
* Attempt to initiate a splice from pipe to file.
*/
{
if (unlikely(!out->f_op->splice_write))
return warn_unsupported(out, "write");
-@@ -767,9 +767,9 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
+@@ -770,9 +770,9 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
/*
* Attempt to initiate a splice from a file to a pipe.
*/
if (wait)
sync_inodes_sb(sb);
diff --git a/include/linux/fs.h b/include/linux/fs.h
-index fd47deea7c176..91f3fbe5b57ff 100644
+index ec8f3ddf4a6aa..4fa4b24535fde 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
-@@ -1330,6 +1330,7 @@ extern void fasync_free(struct fasync_struct *);
+@@ -1332,6 +1332,7 @@ 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 int f_setown(struct file *filp, unsigned long arg, int force);
extern void f_delown(struct file *filp);
-@@ -1841,6 +1842,7 @@ struct file_operations {
+@@ -1909,6 +1910,7 @@ 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);
-@@ -2326,6 +2328,7 @@ extern int current_umask(void);
+@@ -2428,6 +2430,7 @@ extern int current_umask(void);
extern void ihold(struct inode * inode);
extern void iput(struct inode *);
extern int generic_update_time(struct inode *, struct timespec64 *, int);
/* /sys/fs */
extern struct kobject *fs_kobj;
-@@ -2562,6 +2565,7 @@ static inline bool sb_is_blkdev_sb(struct super_block *sb)
+@@ -2668,6 +2671,7 @@ static inline bool sb_is_blkdev_sb(struct super_block *sb)
}
void emergency_thaw_all(void);
extern const struct file_operations def_blk_fops;
extern const struct file_operations def_chr_fops;
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
-index b9e9adec73e8b..e152c49cc3163 100644
+index 7b7ebf2e28ec5..20c46305e057e 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
-@@ -241,6 +241,8 @@ static inline int lockdep_match_key(struct lockdep_map *lock,
+@@ -248,6 +248,8 @@ static inline int lockdep_match_key(struct lockdep_map *lock,
return lock->key == key;
}
+ unsigned int flags);
#endif
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
-index bdaf4829098c0..5c3bff75de111 100644
+index f160f1c97ca1e..fe71c2737eb9e 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -188,7 +188,7 @@ static
#ifdef CONFIG_LOCK_STAT
static DEFINE_PER_CPU(struct lock_class_stats[MAX_LOCKDEP_KEYS], cpu_lock_stats);
SPDX-License-Identifier: GPL-2.0
-aufs5.11 mmap patch
+aufs5.12 mmap patch
diff --git a/fs/proc/base.c b/fs/proc/base.c
-index b3422cda2a91e..bda8e8ece7208 100644
+index 3851bfcdba56e..d632ddd5f5ee8 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
-@@ -2184,7 +2184,7 @@ static int map_files_get_link(struct dentry *dentry, struct path *path)
+@@ -2183,7 +2183,7 @@ static int map_files_get_link(struct dentry *dentry, struct path *path)
rc = -ENOENT;
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 602e3a52884d8..a36614b84de16 100644
+index e862cab695838..5c45041943a6f 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -280,7 +280,10 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma)
dev = inode->i_sb->s_dev;
ino = inode->i_ino;
pgoff = ((loff_t)vma->vm_pgoff) << PAGE_SHIFT;
-@@ -1862,7 +1865,7 @@ static int show_numa_map(struct seq_file *m, void *v)
+@@ -1861,7 +1864,7 @@ static int show_numa_map(struct seq_file *m, void *v)
struct proc_maps_private *proc_priv = &numa_priv->proc_maps;
struct vm_area_struct *vma = v;
struct numa_maps *md = &numa_priv->md;
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 ecdf8a8cd6aeb..d9b3ec02ecbef 100644
+index 8ba434287387b..6d23d40ad1523 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
-@@ -1715,6 +1715,28 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping,
+@@ -1759,6 +1759,28 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping,
unmap_mapping_range(mapping, holebegin, holelen, 0);
}
void *buf, int len, 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 07d9acb5b19c4..2f395ab624f38 100644
+index 6613b26a88946..e94df45b5483a 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
-@@ -278,6 +278,7 @@ struct vm_region {
+@@ -279,6 +279,7 @@ 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
-@@ -357,6 +358,7 @@ struct vm_area_struct {
+@@ -358,6 +359,7 @@ 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). */
#ifdef CONFIG_SWAP
diff --git a/kernel/fork.c b/kernel/fork.c
-index d66cd1014211b..a2addc21d63fc 100644
+index 426cd0c51f9eb..ea0ae494c6dde 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -555,7 +555,7 @@ static __latent_entropy int dup_mmap(struct mm_struct *mm,
put_write_access(inode);
i_mmap_lock_write(mapping);
diff --git a/mm/Makefile b/mm/Makefile
-index b6cd2fffa4922..784e2cebe1eac 100644
+index 72227b24a6168..5d03943b08e03 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -52,7 +52,7 @@ obj-y := filemap.o mempool.o oom_kill.o fadvise.o \
# Give 'page_alloc' its own module-parameter namespace
page-alloc-y := page_alloc.o
diff --git a/mm/filemap.c b/mm/filemap.c
-index aa0e0fb046700..d883a19f4237e 100644
+index 6ce832dc59e73..8b7a71b6f0e6c 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
-@@ -2993,7 +2993,7 @@ vm_fault_t filemap_page_mkwrite(struct vm_fault *vmf)
+@@ -3162,7 +3162,7 @@ vm_fault_t filemap_page_mkwrite(struct vm_fault *vmf)
vm_fault_t ret = VM_FAULT_LOCKED;
sb_start_pagefault(mapping->host->i_sb);
if (page->mapping != mapping) {
unlock_page(page);
diff --git a/mm/mmap.c b/mm/mmap.c
-index dc7206032387c..09b10e20c097c 100644
+index 3f287599a7a30..eb36f1b18f048 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -179,7 +179,7 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma)
mpol_put(vma_policy(vma));
vm_area_free(vma);
return next;
-@@ -951,7 +951,7 @@ int __vma_adjust(struct vm_area_struct *vma, unsigned long start,
+@@ -949,7 +949,7 @@ 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);
-@@ -1897,7 +1897,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
+@@ -1895,7 +1895,7 @@ unsigned long mmap_region(struct file *file, unsigned long addr,
return addr;
unmap_and_free_vma:
vma->vm_file = NULL;
/* Undo any partial mapping done by a device driver. */
-@@ -2757,7 +2757,7 @@ int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -2755,7 +2755,7 @@ 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);
-@@ -2776,7 +2776,7 @@ int __split_vma(struct mm_struct *mm, struct vm_area_struct *vma,
+@@ -2774,7 +2774,7 @@ 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));
-@@ -2969,7 +2969,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
+@@ -2967,7 +2967,7 @@ 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.rst.\n",
current->comm, current->pid);
-@@ -3044,10 +3044,27 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
+@@ -3042,10 +3042,27 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size,
}
}
out:
mmap_write_unlock(mm);
if (populate)
-@@ -3334,7 +3351,7 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
+@@ -3332,7 +3349,7 @@ 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 870fea12823e6..edbc99eee5b6b 100644
+index 5c9ab799c0e63..dd78905704c12 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -533,7 +533,7 @@ static void __put_nommu_region(struct vm_region *region)
+}
+#endif /* !CONFIG_MMU */
SPDX-License-Identifier: GPL-2.0
-aufs5.11 standalone patch
+aufs5.12 standalone patch
diff --git a/fs/dcache.c b/fs/dcache.c
-index a7522ebbca659..d429c984133ca 100644
+index 3caa7ab4b84f1..00e97c9ae7c45 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
-@@ -1397,6 +1397,7 @@ void d_walk(struct dentry *parent, void *data,
+@@ -1423,6 +1423,7 @@ void d_walk(struct dentry *parent, void *data,
seq = 1;
goto again;
}
struct check_mount {
struct vfsmount *mnt;
-@@ -2942,6 +2943,7 @@ void d_exchange(struct dentry *dentry1, struct dentry *dentry2)
+@@ -2968,6 +2969,7 @@ void d_exchange(struct dentry *dentry1, struct dentry *dentry2)
write_sequnlock(&rename_lock);
}
/**
* d_ancestor - search for an ancestor
diff --git a/fs/exec.c b/fs/exec.c
-index 5d4d52039105c..adc75877cdee7 100644
+index 18594f11c31fe..ac38c0424d2a3 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -114,6 +114,7 @@ bool path_noexec(const struct path *path)
#ifdef CONFIG_USELIB
/*
diff --git a/fs/fcntl.c b/fs/fcntl.c
-index e747a47a97da4..d6211ff25c9a4 100644
+index d8a12eb63961d..0532996186311 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
-@@ -85,6 +85,7 @@ int setfl(int fd, struct file *filp, unsigned long arg)
+@@ -86,6 +86,7 @@ int setfl(int fd, struct file *filp, unsigned long arg)
out:
return error;
}
void __init files_init(void)
{
diff --git a/fs/inode.c b/fs/inode.c
-index e4a25c3fa9e55..497326faa1247 100644
+index ba1df0895b69f..0672530acf7dd 100644
--- a/fs/inode.c
+++ b/fs/inode.c
-@@ -1775,6 +1775,7 @@ int update_time(struct inode *inode, struct timespec64 *time, int flags)
+@@ -1778,6 +1778,7 @@ int update_time(struct inode *inode, struct timespec64 *time, int flags)
return inode->i_op->update_time(inode, time, flags);
return generic_update_time(inode, time, flags);
}
/**
* atime_needs_update - update the access time
diff --git a/fs/namespace.c b/fs/namespace.c
-index 3e16fc64df8b8..eed3453ec40a8 100644
+index 540679d7e0434..74957d5edaa86 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
-@@ -431,6 +431,7 @@ void __mnt_drop_write(struct vfsmount *mnt)
+@@ -438,6 +438,7 @@ 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
-@@ -797,6 +798,7 @@ int is_current_mnt_ns(struct vfsmount *mnt)
+@@ -812,6 +813,7 @@ int is_current_mnt_ns(struct vfsmount *mnt)
{
return check_mnt(real_mount(mnt));
}
/*
* vfsmount lock must be held for write
-@@ -1967,6 +1969,7 @@ int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg,
+@@ -1985,6 +1987,7 @@ int iterate_mounts(int (*f)(struct vfsmount *, void *), void *arg,
}
return 0;
}
static void lock_mnt_tree(struct mount *mnt)
{
diff --git a/fs/notify/group.c b/fs/notify/group.c
-index a4a4b1c64d32a..86dc2efb1850c 100644
+index ffd723ffe46de..ec6172836b6f6 100644
--- a/fs/notify/group.c
+++ b/fs/notify/group.c
@@ -100,6 +100,7 @@ void fsnotify_get_group(struct fsnotify_group *group)
/*
* Drop a reference to a group. Free it if it's through.
diff --git a/fs/open.c b/fs/open.c
-index 1e06e443a5651..c3bbb8aafcd1a 100644
+index e53af13b5835f..f37da065e6544 100644
--- a/fs/open.c
+++ b/fs/open.c
-@@ -65,6 +65,7 @@ int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
+@@ -65,6 +65,7 @@ int do_truncate(struct user_namespace *mnt_userns, struct dentry *dentry,
inode_unlock(dentry->d_inode);
return ret;
}
long vfs_truncate(const struct path *path, loff_t length)
{
diff --git a/fs/read_write.c b/fs/read_write.c
-index 75f764b434184..7582bb3fb634b 100644
+index 9db7adf160d20..8dc93a57a933f 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -503,6 +503,7 @@ ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
/* file_ppos returns &file->f_pos or NULL if file is stream */
static inline loff_t *file_ppos(struct file *file)
diff --git a/fs/splice.c b/fs/splice.c
-index 55b5356262085..c13ac0fbac318 100644
+index 3e6ba363b7775..7c1be373eb7cd 100644
--- a/fs/splice.c
+++ b/fs/splice.c
-@@ -763,6 +763,7 @@ long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
+@@ -766,6 +766,7 @@ long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
return warn_unsupported(out, "write");
return out->f_op->splice_write(pipe, out, ppos, len, flags);
}
/*
* Attempt to initiate a splice from a file to a pipe.
-@@ -787,6 +788,7 @@ long do_splice_to(struct file *in, loff_t *ppos,
+@@ -795,6 +796,7 @@ long do_splice_to(struct file *in, loff_t *ppos,
return warn_unsupported(in, "read");
return in->f_op->splice_read(in, ppos, pipe, len, flags);
}
/*
* Write out and wait upon all dirty data associated with this
diff --git a/fs/xattr.c b/fs/xattr.c
-index fd57153b1f617..d8e9d0d6853ef 100644
+index b3444e06cded4..7b0f851b63d75 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
-@@ -371,6 +371,7 @@ vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value,
+@@ -383,6 +383,7 @@ vfs_getxattr_alloc(struct user_namespace *mnt_userns, struct dentry *dentry,
*xattr_value = value;
return error;
}
ssize_t
__vfs_getxattr(struct dentry *dentry, struct inode *inode, const char *name,
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
-index 5c3bff75de111..ff00031462623 100644
+index fe71c2737eb9e..185531f89239a 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -209,6 +209,7 @@ inline struct lock_class *lockdep_hlock_class(struct held_lock *hlock)
}
+EXPORT_SYMBOL_GPL(task_work_run);
diff --git a/security/security.c b/security/security.c
-index 7b09cfbae94f7..3e060cc948262 100644
+index 5ac96b16f8fab..46d334d6ac1f6 100644
--- a/security/security.c
+++ b/security/security.c
-@@ -1094,6 +1094,7 @@ int security_path_rmdir(const struct path *dir, struct dentry *dentry)
+@@ -1102,6 +1102,7 @@ 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)
{
-@@ -1110,6 +1111,7 @@ int security_path_symlink(const struct path *dir, struct dentry *dentry,
+@@ -1118,6 +1119,7 @@ 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)
-@@ -1118,6 +1120,7 @@ int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
+@@ -1126,6 +1128,7 @@ 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,
-@@ -1145,6 +1148,7 @@ int security_path_truncate(const struct path *path)
+@@ -1153,6 +1156,7 @@ 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)
{
-@@ -1152,6 +1156,7 @@ int security_path_chmod(const struct path *path, umode_t mode)
+@@ -1160,6 +1164,7 @@ 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)
{
-@@ -1159,6 +1164,7 @@ int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
+@@ -1167,6 +1172,7 @@ 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)
{
-@@ -1259,6 +1265,7 @@ int security_inode_permission(struct inode *inode, int mask)
+@@ -1267,6 +1273,7 @@ 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)
{
-@@ -1451,6 +1458,7 @@ int security_file_permission(struct file *file, int mask)
+@@ -1464,6 +1471,7 @@ int security_file_permission(struct file *file, int mask)
return fsnotify_perm(file, mask);
}
{
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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/ABI/testing/debugfs-aufs 2021-05-02 20:15:14.666670785 +0200
@@ -0,0 +1,55 @@
+What: /debug/aufs/si_<id>/
+Date: March 2009
+ When the aufs mount option 'noxino' is specified, it
+ will be empty. About XINO files, see the aufs manual.
+
-+What: /debug/aufs/si_<id>/xi0, xi1 ... xiN and xiN-N
++What: /debug/aufs/si_<id>/xi<branch-index>
+Date: March 2009
+Contact: J. R. Okajima <hooanon05g@gmail.com>
+Description:
+ 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/ABI/testing/sysfs-aufs 2021-05-02 20:15:14.666670785 +0200
@@ -0,0 +1,31 @@
+What: /sys/fs/aufs/si_<id>/
+Date: March 2009
+ per aufs mount, where <id> is a unique id generated
+ internally.
+
-+What: /sys/fs/aufs/si_<id>/br0, br1 ... brN
++What: /sys/fs/aufs/si_<id>/br<idx>
+Date: March 2009
+Contact: J. R. Okajima <hooanon05g@gmail.com>
+Description:
+ It shows the abolute path of a member directory (which
+ is called branch) in aufs, and its permission.
+
-+What: /sys/fs/aufs/si_<id>/brid0, brid1 ... bridN
++What: /sys/fs/aufs/si_<id>/brid<idx>
+Date: July 2013
+Contact: J. R. Okajima <hooanon05g@gmail.com>
+Description:
+ 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/01intro.txt 2021-05-02 20:15:14.666670785 +0200
@@ -0,0 +1,171 @@
+
+# Copyright (C) 2005-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/02struct.txt 2021-05-02 20:15:14.666670785 +0200
@@ -0,0 +1,258 @@
+
+# Copyright (C) 2005-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/03atomic_open.txt 2021-05-02 20:15:14.666670785 +0200
@@ -0,0 +1,85 @@
+
+# Copyright (C) 2015-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/03lookup.txt 2021-05-02 20:15:14.666670785 +0200
@@ -0,0 +1,113 @@
+
+# Copyright (C) 2005-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/04branch.txt 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,74 @@
+
+# Copyright (C) 2005-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/05wbr_policy.txt 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,64 @@
+
+# Copyright (C) 2005-2020 Junjiro R. Okajima
+ copyup policy.
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/06dirren.dot linux/Documentation/filesystems/aufs/design/06dirren.dot
--- /usr/share/empty/Documentation/filesystems/aufs/design/06dirren.dot 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/06dirren.dot 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/06dirren.dot 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,31 @@
+
+// to view this graph, run dot(1) command in GRAPHVIZ.
+}
diff -urN /usr/share/empty/Documentation/filesystems/aufs/design/06dirren.txt linux/Documentation/filesystems/aufs/design/06dirren.txt
--- /usr/share/empty/Documentation/filesystems/aufs/design/06dirren.txt 1970-01-01 01:00:00.000000000 +0100
-+++ linux/Documentation/filesystems/aufs/design/06dirren.txt 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/06dirren.txt 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,102 @@
+
+# Copyright (C) 2017-2020 Junjiro R. Okajima
+equivalen to udba=reval case.
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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/06fhsm.txt 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,120 @@
+
+# Copyright (C) 2011-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/06mmap.txt 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,72 @@
+
+# Copyright (C) 2005-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/06xattr.txt 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,96 @@
+
+# Copyright (C) 2014-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/07export.txt 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,58 @@
+
+# Copyright (C) 2005-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/08shwh.txt 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,52 @@
+
+# Copyright (C) 2005-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/design/10dynop.txt 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,47 @@
+
+# Copyright (C) 2010-2020 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 2021-02-24 13:33:42.737680181 +0100
++++ linux/Documentation/filesystems/aufs/README 2021-05-02 20:15:14.666670785 +0200
@@ -0,0 +1,401 @@
+
+Aufs5 -- advanced multi layered unification filesystem version 5.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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/aufs.h 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/branch.c 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,1427 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.741013619 +0100
-@@ -0,0 +1,364 @@
++++ linux/fs/aufs/branch.h 2021-05-02 20:15:14.670004120 +0200
+@@ -0,0 +1,375 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+ return br->br_path.dentry;
+}
+
++static inline struct user_namespace *au_br_userns(struct au_branch *br)
++{
++ return mnt_user_ns(br->br_path.mnt);
++}
++
+static inline struct super_block *au_br_sb(struct au_branch *br)
+{
+ return au_br_mnt(br)->mnt_sb;
+}
+
+static inline
++struct user_namespace *au_sbr_userns(struct super_block *sb, aufs_bindex_t bindex)
++{
++ return au_br_userns(au_sbr(sb, bindex));
++}
++
++static inline
+struct super_block *au_sbr_sb(struct super_block *sb, aufs_bindex_t bindex)
+{
+ return au_br_sb(au_sbr(sb, bindex));
+#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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/conf.mk 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0
+
+-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 2021-02-24 13:33:42.741013619 +0100
-@@ -0,0 +1,1445 @@
++++ linux/fs/aufs/cpup.c 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,1457 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+};
+
+static noinline_for_stack
-+int cpup_iattr(struct dentry *dst, aufs_bindex_t bindex, struct dentry *h_src,
++int cpup_iattr(struct dentry *dst, aufs_bindex_t bindex, struct path *h_src,
+ struct au_cpup_reg_attr *h_src_attr)
+{
+ int err, sbits, icex;
+ struct kstat *h_st;
+ struct au_branch *br;
+
-+ h_path.dentry = au_h_dptr(dst, bindex);
-+ h_idst = d_inode(h_path.dentry);
+ br = au_sbr(dst->d_sb, bindex);
+ h_path.mnt = au_br_mnt(br);
-+ h_isrc = d_inode(h_src);
++ h_path.dentry = au_h_dptr(dst, bindex);
++ h_idst = d_inode(h_path.dentry);
++ h_isrc = d_inode(h_src->dentry);
+ ia.ia_valid = ATTR_FORCE | ATTR_UID | ATTR_GID
+ | ATTR_ATIME | ATTR_MTIME
+ | ATTR_ATIME_SET | ATTR_MTIME_SET;
+ if (!err) {
+ mnt_flags = au_mntflags(dst->d_sb);
+ verbose = !!au_opt_test(mnt_flags, VERBOSE);
-+ err = au_cpup_xattr(h_path.dentry, h_src, icex, verbose);
++ err = au_cpup_xattr(&h_path, h_src, icex, verbose);
+ }
+
+ return err;
+ int err;
+ struct dentry *h_dentry;
+ struct inode *h_inode;
++ struct user_namespace *h_userns;
+
++ h_userns = mnt_user_ns(h_path->mnt);
+ h_dentry = h_path->dentry;
+ h_inode = d_inode(h_dentry);
+ /* forget_all_cached_acls(h_inode)); */
-+ err = vfsub_removexattr(h_dentry, XATTR_NAME_POSIX_ACL_ACCESS);
++ err = vfsub_removexattr(h_userns, h_dentry, XATTR_NAME_POSIX_ACL_ACCESS);
+ AuTraceErr(err);
+ if (err == -EOPNOTSUPP)
+ err = 0;
+ if (!err)
-+ err = vfsub_acl_chmod(h_inode, mode);
++ err = vfsub_acl_chmod(h_userns, h_inode, mode);
+
+ AuTraceErr(err);
+ return err;
+{
+ int err;
+ struct inode *dir, *inode;
++ struct user_namespace *h_userns;
+
-+ err = vfsub_removexattr(h_path->dentry, XATTR_NAME_POSIX_ACL_DEFAULT);
++ h_userns = mnt_user_ns(h_path->mnt);
++ err = vfsub_removexattr(h_userns, h_path->dentry,
++ XATTR_NAME_POSIX_ACL_DEFAULT);
+ AuTraceErr(err);
+ if (err == -EOPNOTSUPP)
+ err = 0;
+ struct inode *dst_inode, *h_dir, *inode, *delegated, *src_inode;
+ struct super_block *sb;
+ struct au_branch *br;
++ struct path h_src_path;
+ /* to reduce stack size */
+ struct {
+ struct au_dtime dt;
+ /* todo: necessary? */
+ /* au_pin_hdir_unlock(cpg->pin); */
+
-+ err = cpup_iattr(cpg->dentry, cpg->bdst, h_src, &a->h_src_attr);
++ h_src_path.dentry = h_src;
++ h_src_path.mnt = au_sbr_mnt(sb, cpg->bsrc);
++ err = cpup_iattr(cpg->dentry, cpg->bdst, &h_src_path, &a->h_src_attr);
+ if (unlikely(err)) {
+ /* todo: necessary? */
+ /* au_pin_hdir_relock(cpg->pin); */ /* ignore an error */
+ struct dentry *dentry, *parent;
+ struct file *h_file;
+ struct inode *h_dir;
++ struct user_namespace *h_userns;
+
+ dentry = cpg->dentry;
+ h_file = NULL;
+
+ parent = dget_parent(dentry);
+ h_dir = au_h_iptr(d_inode(parent), cpg->bdst);
-+ if (!au_test_h_perm_sio(h_dir, MAY_EXEC | MAY_WRITE)
++ h_userns = au_sbr_userns(dentry->d_sb, cpg->bdst);
++ if (!au_test_h_perm_sio(h_userns, h_dir, MAY_EXEC | MAY_WRITE)
+ && !au_cpup_sio_test(cpg->pin, d_inode(dentry)->i_mode))
+ err = au_cpup_simple(cpg);
+ else {
+ struct inode *dir, *h_dir, *h_tmpdir;
+ struct au_wbr *wbr;
+ struct au_pin wh_pin, *pin_orig;
++ struct user_namespace *h_userns;
+
+ dentry = cpg->dentry;
+ bdst = cpg->bdst;
+ cpg->pin = &wh_pin;
+ }
+
-+ if (!au_test_h_perm_sio(h_tmpdir, MAY_EXEC | MAY_WRITE)
++ h_userns = au_sbr_userns(dentry->d_sb, bdst);
++ if (!au_test_h_perm_sio(h_userns, h_tmpdir, MAY_EXEC | MAY_WRITE)
+ && !au_cpup_sio_test(cpg->pin, d_inode(dentry)->i_mode))
+ err = au_cpup_wh(cpg, file);
+ else {
+}
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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/cpup.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/dbgaufs.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,526 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/dbgaufs.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/dcsub.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/dcsub.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,137 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/debug.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,441 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/debug.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,226 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.741013619 +0100
-@@ -0,0 +1,1154 @@
++++ linux/fs/aufs/dentry.c 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,1160 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+ struct dentry *h_dentry;
+ struct inode *h_inode;
+ struct au_branch *br;
++ struct user_namespace *h_userns;
+ int wh_found, opq;
+ unsigned char wh_able;
+ const unsigned char allow_neg = !!au_ftest_lkup(args->flags, ALLOW_NEG);
+
+ wh_found = 0;
+ br = au_sbr(dentry->d_sb, bindex);
++ h_userns = au_br_userns(br);
+ wh_able = !!au_br_whable(br->br_perm);
+ if (wh_able)
-+ wh_found = au_wh_test(h_parent, &args->whname, ignore_perm);
++ wh_found = au_wh_test(h_userns, h_parent, &args->whname,
++ ignore_perm);
+ h_dentry = ERR_PTR(wh_found);
+ if (!wh_found)
+ goto real_lookup;
+ if (!ignore_perm)
+ h_dentry = vfsub_lkup_one(args->name, h_parent);
+ else
-+ h_dentry = au_sio_lkup_one(args->name, h_parent);
++ h_dentry = au_sio_lkup_one(h_userns, args->name, h_parent);
+ if (IS_ERR(h_dentry)) {
+ if (PTR_ERR(h_dentry) == -ENAMETOOLONG
+ && !allow_neg)
+ goto out; /* success */
+
+ inode_lock_shared_nested(h_inode, AuLsc_I_CHILD);
-+ opq = au_diropq_test(h_dentry);
++ opq = au_diropq_test(h_userns, h_dentry);
+ inode_unlock_shared(h_inode);
+ if (opq > 0)
+ au_set_dbdiropq(dentry, bindex);
+ return err;
+}
+
-+struct dentry *au_sio_lkup_one(struct qstr *name, struct dentry *parent)
++struct dentry *au_sio_lkup_one(struct user_namespace *userns, struct qstr *name,
++ struct dentry *parent)
+{
+ struct dentry *dentry;
+ int wkq_err;
+
-+ if (!au_test_h_perm_sio(d_inode(parent), MAY_EXEC))
++ if (!au_test_h_perm_sio(userns, d_inode(parent), MAY_EXEC))
+ dentry = vfsub_lkup_one(name, parent);
+ else {
+ struct vfsub_lkup_one_args args = {
+ int err;
+ struct dentry *parent, *h_parent, *h_dentry;
+ struct au_branch *br;
++ struct user_namespace *h_userns;
+
+ parent = dget_parent(dentry);
+ h_parent = au_h_dptr(parent, bindex);
+ br = au_sbr(dentry->d_sb, bindex);
++ h_userns = au_br_userns(br);
+ if (wh)
+ h_dentry = au_whtmp_lkup(h_parent, br, &dentry->d_name);
+ else
-+ h_dentry = au_sio_lkup_one(&dentry->d_name, h_parent);
++ h_dentry = au_sio_lkup_one(h_userns, &dentry->d_name, h_parent);
+ err = PTR_ERR(h_dentry);
+ if (IS_ERR(h_dentry))
+ goto out;
+};
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 2021-02-24 13:33:42.741013619 +0100
-@@ -0,0 +1,268 @@
++++ linux/fs/aufs/dentry.h 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,269 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+/* dentry.c */
+extern const struct dentry_operations aufs_dop, aufs_dop_noreval;
+struct au_branch;
-+struct dentry *au_sio_lkup_one(struct qstr *name, struct dentry *parent);
++struct dentry *au_sio_lkup_one(struct user_namespace *userns, struct qstr *name,
++ struct dentry *parent);
+int au_h_verify(struct dentry *h_dentry, unsigned int udba, struct inode *h_dir,
+ struct dentry *h_parent, struct au_branch *br);
+
+#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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/dinfo.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,554 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.741013619 +0100
-@@ -0,0 +1,763 @@
++++ linux/fs/aufs/dir.c 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,765 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+ int err, wkq_err;
+ struct dentry *h_dentry;
+ struct inode *h_inode;
++ struct user_namespace *h_userns;
+
++ h_userns = au_sbr_userns(dentry->d_sb, arg->bindex);
+ h_dentry = au_h_dptr(dentry, arg->bindex);
+ h_inode = d_inode(h_dentry);
+ /* todo: i_mode changes anytime? */
+ inode_lock_shared_nested(h_inode, AuLsc_I_CHILD);
-+ err = au_test_h_perm_sio(h_inode, MAY_EXEC | MAY_READ);
++ err = au_test_h_perm_sio(h_userns, h_inode, MAY_EXEC | MAY_READ);
+ inode_unlock_shared(h_inode);
+ if (!err)
+ err = do_test_empty(dentry, arg);
+};
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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/dir.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,134 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#endif /* __AUFS_DIR_H__ */
diff -urN /usr/share/empty/fs/aufs/dirren.c linux/fs/aufs/dirren.c
--- /usr/share/empty/fs/aufs/dirren.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dirren.c 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/dirren.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,1316 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ err = PTR_ERR(hinopath.dentry);
+ if (IS_ERR(hinopath.dentry))
+ goto out_unlock;
++ hinopath.mnt = path->mnt;
+
+ err = 0;
+ flags = O_RDONLY;
+ }
+ flags = O_WRONLY;
+ }
-+ hinopath.mnt = path->mnt;
+ hinofile = vfsub_dentry_open(&hinopath, flags);
+ if (suspend)
+ au_hn_inode_unlock(hdir);
+}
diff -urN /usr/share/empty/fs/aufs/dirren.h linux/fs/aufs/dirren.h
--- /usr/share/empty/fs/aufs/dirren.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/dirren.h 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/dirren.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,140 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#endif /* __AUFS_DIRREN_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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/dynop.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,368 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/dynop.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/export.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,837 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/fhsm.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,427 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/file.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,863 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+};
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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/file.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,342 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/finfo.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.744347058 +0100
-@@ -0,0 +1,762 @@
++++ linux/fs/aufs/f_op.c 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,771 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+ return err;
+}
+
++/*
++ * We may be able to remove aufs_splice_{read,write}() since almost all FSes
++ * don't have their own .splice_{read,write} implimentations, and they use
++ * generic_file_splice_read() and iter_file_splice_write() who can act like the
++ * simple converters to f_op->iter_read() and ->iter_write().
++ * But we keep our own implementations because some non-mainlined FSes may have
++ * their own .splice_{read,write} implimentations and aufs doesn't want to take
++ * away an opportunity to co-work with aufs from them.
++ */
+static ssize_t aufs_splice_read(struct file *file, loff_t *ppos,
+ struct pipe_inode_info *pipe, size_t len,
+ unsigned int flags)
+};
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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/fstype.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,401 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#endif /* __AUFS_FSTYPE_H__ */
diff -urN /usr/share/empty/fs/aufs/hbl.h linux/fs/aufs/hbl.h
--- /usr/share/empty/fs/aufs/hbl.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/hbl.h 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/hbl.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#endif /* __AUFS_HBL_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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/hfsnotify.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,288 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+};
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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/hfsplus.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/hnotify.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,715 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/iinfo.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,286 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.744347058 +0100
-@@ -0,0 +1,529 @@
++++ linux/fs/aufs/inode.c 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,531 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+ return err;
+}
+
-+int au_test_h_perm(struct inode *h_inode, int mask)
++int au_test_h_perm(struct user_namespace *h_userns, struct inode *h_inode,
++ int mask)
+{
+ if (uid_eq(current_fsuid(), GLOBAL_ROOT_UID))
+ return 0;
-+ return inode_permission(h_inode, mask);
++ return inode_permission(h_userns, h_inode, mask);
+}
+
-+int au_test_h_perm_sio(struct inode *h_inode, int mask)
++int au_test_h_perm_sio(struct user_namespace *h_userns, struct inode *h_inode,
++ int mask)
+{
+ if (au_test_nfs(h_inode->i_sb)
+ && (mask & MAY_WRITE)
+ && S_ISDIR(h_inode->i_mode))
+ mask |= MAY_READ; /* force permission check */
-+ return au_test_h_perm(h_inode, mask);
++ return au_test_h_perm(h_userns, h_inode, mask);
+}
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 2021-02-24 13:33:42.744347058 +0100
-@@ -0,0 +1,698 @@
++++ linux/fs/aufs/inode.h 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,705 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+struct inode *au_new_inode(struct dentry *dentry, int must_new);
+int au_test_ro(struct super_block *sb, aufs_bindex_t bindex,
+ struct inode *inode);
-+int au_test_h_perm(struct inode *h_inode, int mask);
-+int au_test_h_perm_sio(struct inode *h_inode, int mask);
++int au_test_h_perm(struct user_namespace *h_userns, struct inode *h_inode,
++ int mask);
++int au_test_h_perm_sio(struct user_namespace *h_userns, struct inode *h_inode,
++ int mask);
+
+static inline int au_wh_ino(struct super_block *sb, aufs_bindex_t bindex,
+ ino_t h_ino, unsigned int d_type, ino_t *ino)
+/* i_op_add.c */
+int au_may_add(struct dentry *dentry, aufs_bindex_t bindex,
+ struct dentry *h_parent, int isdir);
-+int aufs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
-+ dev_t dev);
-+int aufs_symlink(struct inode *dir, struct dentry *dentry, const char *symname);
-+int aufs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
-+ bool want_excl);
++int aufs_mknod(struct user_namespace *userns, struct inode *dir,
++ struct dentry *dentry, umode_t mode, dev_t dev);
++int aufs_symlink(struct user_namespace *userns, struct inode *dir,
++ struct dentry *dentry, const char *symname);
++int aufs_create(struct user_namespace *userns, struct inode *dir,
++ struct dentry *dentry, umode_t mode, bool want_excl);
+struct vfsub_aopen_args;
+int au_aopen_or_create(struct inode *dir, struct dentry *dentry,
+ struct vfsub_aopen_args *args);
-+int aufs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode);
++int aufs_tmpfile(struct user_namespace *userns, struct inode *dir,
++ struct dentry *dentry, umode_t mode);
+int aufs_link(struct dentry *src_dentry, struct inode *dir,
+ struct dentry *dentry);
-+int aufs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
++int aufs_mkdir(struct user_namespace *userns, struct inode *dir,
++ struct dentry *dentry, umode_t mode);
+
+/* i_op_del.c */
+int au_wr_dir_need_wh(struct dentry *dentry, int isdir, aufs_bindex_t *bcpup);
+
+/* i_op_ren.c */
+int au_wbr(struct dentry *dentry, aufs_bindex_t btgt);
-+int aufs_rename(struct inode *src_dir, struct dentry *src_dentry,
-+ struct inode *dir, struct dentry *dentry,
-+ unsigned int flags);
++int aufs_rename(struct user_namespace *userns,
++ struct inode *_src_dir, struct dentry *_src_dentry,
++ struct inode *_dst_dir, struct dentry *_dst_dentry,
++ unsigned int _flags);
+
+/* iinfo.c */
+struct inode *au_h_iptr(struct inode *inode, aufs_bindex_t bindex);
+
+#ifdef CONFIG_AUFS_XATTR
+/* xattr.c */
-+int au_cpup_xattr(struct dentry *h_dst, struct dentry *h_src, int ignore_flags,
++int au_cpup_xattr(struct path *h_dst, struct path *h_src, int ignore_flags,
+ unsigned int verbose);
+ssize_t aufs_listxattr(struct dentry *dentry, char *list, size_t size);
+void au_xattr_init(struct super_block *sb);
+#else
-+AuStubInt0(au_cpup_xattr, struct dentry *h_dst, struct dentry *h_src,
++AuStubInt0(au_cpup_xattr, struct path *h_dst, struct path *h_src,
+ int ignore_flags, unsigned int verbose);
+AuStubVoid(au_xattr_init, struct super_block *sb);
+#endif
+
+#ifdef CONFIG_FS_POSIX_ACL
+struct posix_acl *aufs_get_acl(struct inode *inode, int type);
-+int aufs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
++int aufs_set_acl(struct user_namespace *userns, struct inode *inode,
++ struct posix_acl *acl, int type);
+#endif
+
+#if IS_ENABLED(CONFIG_AUFS_XATTR) || IS_ENABLED(CONFIG_FS_POSIX_ACL)
+#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 2021-02-24 13:33:42.744347058 +0100
++++ linux/fs/aufs/ioctl.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,220 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+#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 2021-02-24 13:33:42.744347058 +0100
-@@ -0,0 +1,936 @@
++++ linux/fs/aufs/i_op_add.c 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,941 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+ return err;
+}
+
-+int aufs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
-+ dev_t dev)
++int aufs_mknod(struct user_namespace *userns, struct inode *dir,
++ struct dentry *dentry, umode_t mode, dev_t dev)
+{
+ struct simple_arg arg = {
+ .type = Mknod,
+ return add_simple(dir, dentry, &arg);
+}
+
-+int aufs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
++int aufs_symlink(struct user_namespace *userns, struct inode *dir,
++ struct dentry *dentry, const char *symname)
+{
+ struct simple_arg arg = {
+ .type = Symlink,
+ return add_simple(dir, dentry, &arg);
+}
+
-+int aufs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
-+ bool want_excl)
++int aufs_create(struct user_namespace *userns, struct inode *dir,
++ struct dentry *dentry, umode_t mode, bool want_excl)
+{
+ struct simple_arg arg = {
+ .type = Creat,
+ return add_simple(dir, dentry, &arg);
+}
+
-+int aufs_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
++int aufs_tmpfile(struct user_namespace *userns, struct inode *dir,
++ struct dentry *dentry, umode_t mode)
+{
+ int err;
+ aufs_bindex_t bindex;
+ struct dentry *parent, *h_parent, *h_dentry;
+ struct inode *h_dir, *inode;
+ struct vfsmount *h_mnt;
++ struct user_namespace *h_userns;
+ struct au_wr_dir_args wr_dir_args = {
+ .force_btgt = -1,
+ .flags = AuWrDir_TMPFILE
+ if (unlikely(err))
+ goto out_parent;
+
++ h_userns = mnt_user_ns(h_mnt);
+ h_parent = au_h_dptr(parent, bindex);
-+ h_dentry = vfs_tmpfile(h_parent, mode, /*open_flag*/0);
++ h_dentry = vfs_tmpfile(h_userns, h_parent, mode, /*open_flag*/0);
+ if (IS_ERR(h_dentry)) {
+ err = PTR_ERR(h_dentry);
+ goto out_mnt;
+ return err;
+}
+
-+int aufs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
++int aufs_mkdir(struct user_namespace *userns, struct inode *dir,
++ struct dentry *dentry, umode_t mode)
+{
+ int err, rerr;
+ aufs_bindex_t bindex;
+}
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 2021-02-24 13:33:42.744347058 +0100
-@@ -0,0 +1,1502 @@
++++ linux/fs/aufs/i_op.c 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,1513 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+{
+ int err;
+ const unsigned char write_mask = !!(mask & (MAY_WRITE | MAY_APPEND));
++ struct user_namespace *h_userns;
+
+ err = -EPERM;
+ if (write_mask && IS_IMMUTABLE(h_inode))
+ * - nfs always sets SB_POSIXACL regardless its mount option 'noacl.'
+ * in this case, generic_permission() returns -EOPNOTSUPP.
+ */
++ h_userns = mnt_user_ns(h_path->mnt);
+ if ((write_mask && !au_br_writable(brperm))
+ || (au_test_nfs(h_inode->i_sb) && S_ISDIR(h_inode->i_mode)
+ && write_mask && !(mask & MAY_READ))
+ || !h_inode->i_op->permission) {
+ /* AuLabel(generic_permission); */
+ /* AuDbg("get_acl %ps\n", h_inode->i_op->get_acl); */
-+ err = generic_permission(h_inode, mask);
++ err = generic_permission(h_userns, h_inode, mask);
+ if (err == -EOPNOTSUPP && au_test_nfs_noacl(h_inode))
-+ err = h_inode->i_op->permission(h_inode, mask);
++ err = h_inode->i_op->permission(h_userns, h_inode,
++ mask);
+ AuTraceErr(err);
+ } else {
+ /* AuLabel(h_inode->permission); */
-+ err = h_inode->i_op->permission(h_inode, mask);
++ err = h_inode->i_op->permission(h_userns, h_inode, mask);
+ AuTraceErr(err);
+ }
+
+ return err;
+}
+
-+static int aufs_permission(struct inode *inode, int mask)
++static int aufs_permission(struct user_namespace *userns, struct inode *inode,
++ int mask)
+{
+ int err;
+ aufs_bindex_t bindex, bbot;
+ return err;
+}
+
-+static int aufs_setattr(struct dentry *dentry, struct iattr *ia)
++static int aufs_setattr(struct user_namespace *userns, struct dentry *dentry,
++ struct iattr *ia)
+{
+ int err;
+ struct inode *inode, *delegated;
+ struct super_block *sb;
+ struct file *file;
+ struct au_icpup_args *a;
++ struct user_namespace *h_userns;
+
+ inode = d_inode(dentry);
+ IMustLock(inode);
+
-+ err = setattr_prepare(dentry, ia);
++ err = setattr_prepare(userns, dentry, ia);
+ if (unlikely(err))
+ goto out;
+
+ * regardless aufs 'acl' option setting.
+ * why don't all acl-aware fs call this func from their ->setattr()?
+ */
-+ if (!err && (ia->ia_valid & ATTR_MODE))
-+ err = vfsub_acl_chmod(a->h_inode, ia->ia_mode);
++ if (!err && (ia->ia_valid & ATTR_MODE)) {
++ h_userns = mnt_user_ns(a->h_path.mnt);
++ err = vfsub_acl_chmod(h_userns, a->h_inode, ia->ia_mode);
++ }
+ if (!err)
+ au_cpup_attr_changeable(inode);
+
+ struct super_block *sb;
+ struct au_icpup_args *a;
+ struct inode *h_inode;
++ struct user_namespace *h_userns;
+
+ IMustLock(inode);
+
+ err = au_h_path_to_set_attr(dentry, a, &h_path);
+ if (unlikely(err))
+ goto out_di;
++ h_userns = mnt_user_ns(h_path.mnt);
+
+ inode_unlock(a->h_inode);
+ switch (arg->type) {
+ case AU_XATTR_SET:
+ AuDebugOn(d_is_negative(h_path.dentry));
-+ err = vfsub_setxattr(h_path.dentry,
++ err = vfsub_setxattr(h_userns, h_path.dentry,
+ arg->u.set.name, arg->u.set.value,
+ arg->u.set.size, arg->u.set.flags);
+ break;
+ case AU_ACL_SET:
+ err = -EOPNOTSUPP;
+ h_inode = d_inode(h_path.dentry);
-+ if (h_inode->i_op->set_acl)
++ if (h_inode->i_op->set_acl) {
+ /* this will call posix_acl_update_mode */
-+ err = h_inode->i_op->set_acl(h_inode,
++ err = h_inode->i_op->set_acl(h_userns, h_inode,
+ arg->u.acl_set.acl,
+ arg->u.acl_set.type);
++ }
+ break;
+ }
+ if (!err)
+ return err;
+}
+
-+static int aufs_getattr(const struct path *path, struct kstat *st,
-+ u32 request, unsigned int query)
++static int aufs_getattr(struct user_namespace *userns, const struct path *path,
++ struct kstat *st, u32 request, unsigned int query)
+{
+ int err;
+ unsigned char positive;
+ goto out_di;
+
+out_fill:
-+ generic_fillattr(inode, st);
++ generic_fillattr(userns, inode, st);
+out_di:
+ di_read_unlock(dentry, AuLock_IR);
+out_si:
+};
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 2021-02-24 13:33:42.744347058 +0100
-@@ -0,0 +1,513 @@
++++ linux/fs/aufs/i_op_del.c 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,515 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+ umode_t h_mode;
+ struct dentry *h_dentry, *h_latest;
+ struct inode *h_inode;
++ struct user_namespace *h_userns;
+
+ h_dentry = au_h_dptr(dentry, bindex);
+ if (d_really_is_positive(dentry)) {
+ * let's try heavy test.
+ */
+ err = -EACCES;
++ h_userns = au_sbr_userns(dentry->d_sb, bindex);
+ if (unlikely(!au_opt_test(au_mntflags(dentry->d_sb), DIRPERM1)
-+ && au_test_h_perm(d_inode(h_parent),
++ && au_test_h_perm(h_userns, d_inode(h_parent),
+ MAY_EXEC | MAY_WRITE)))
+ goto out;
+
-+ h_latest = au_sio_lkup_one(&dentry->d_name, h_parent);
++ h_latest = au_sio_lkup_one(h_userns, &dentry->d_name, h_parent);
+ err = -EIO;
+ if (IS_ERR(h_latest))
+ goto out;
+}
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 2021-02-24 13:33:42.744347058 +0100
-@@ -0,0 +1,1250 @@
++++ linux/fs/aufs/i_op_ren.c 2021-05-02 20:15:14.673337458 +0200
+@@ -0,0 +1,1251 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+
+/* ---------------------------------------------------------------------- */
+
-+int aufs_rename(struct inode *_src_dir, struct dentry *_src_dentry,
++int aufs_rename(struct user_namespace *userns,
++ struct inode *_src_dir, struct dentry *_src_dentry,
+ struct inode *_dst_dir, struct dentry *_dst_dentry,
+ unsigned int _flags)
+{
+}
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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/Kconfig 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,199 @@
+# SPDX-License-Identifier: GPL-2.0
+config AUFS_FS
+endif
diff -urN /usr/share/empty/fs/aufs/lcnt.h linux/fs/aufs/lcnt.h
--- /usr/share/empty/fs/aufs/lcnt.h 1970-01-01 01:00:00.000000000 +0100
-+++ linux/fs/aufs/lcnt.h 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/lcnt.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,186 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#endif /* __AUFS_LCNT_H__ */
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/loop.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/loop.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/magic.mk 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: GPL-2.0
+
+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 2021-02-24 13:33:42.741013619 +0100
++++ linux/fs/aufs/Makefile 2021-05-02 20:15:14.670004120 +0200
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: GPL-2.0
+
+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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/module.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/module.h 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,166 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/mvdown.c 2021-05-02 20:15:14.673337458 +0200
@@ -0,0 +1,706 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/opts.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,1880 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/opts.h 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,225 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/plink.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,516 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/poll.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
-@@ -0,0 +1,105 @@
++++ linux/fs/aufs/posix_acl.c 2021-05-02 20:15:14.676670793 +0200
+@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2014-2020 Junjiro R. Okajima
+ return acl;
+}
+
-+int aufs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
++int aufs_set_acl(struct user_namespace *userns, struct inode *inode,
++ struct posix_acl *acl, int type)
+{
+ int err;
+ ssize_t ssz;
+}
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/procfs.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/rdu.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,384 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+#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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/rwsem.h 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/sbinfo.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,314 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
-@@ -0,0 +1,1047 @@
++++ linux/fs/aufs/super.c 2021-05-02 20:15:14.676670793 +0200
+@@ -0,0 +1,1050 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+struct file_system_type aufs_fs_type = {
+ .name = AUFS_FSTYPE,
+ /* a race between rename and others */
-+ .fs_flags = FS_RENAME_DOES_D_MOVE,
++ .fs_flags = FS_RENAME_DOES_D_MOVE
++ /* untested */
++ /*| FS_ALLOW_IDMAP*/
++ ,
+ .mount = aufs_mount,
+ .kill_sb = aufs_kill_sb,
+ /* no need to __module_get() and module_put(). */
+};
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/super.h 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,587 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/sysaufs.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/sysaufs.h 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/sysfs.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,374 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/sysrq.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/vdir.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,896 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.747680497 +0100
-@@ -0,0 +1,885 @@
++++ linux/fs/aufs/vfsub.c 2021-05-02 20:15:14.676670793 +0200
+@@ -0,0 +1,916 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+{
+ int err;
+ struct dentry *d;
++ struct user_namespace *userns;
+
+ IMustLock(dir);
+
+ path->dentry = d;
+ if (unlikely(err))
+ goto out;
++ userns = mnt_user_ns(path->mnt);
+
+ lockdep_off();
-+ err = vfs_create(dir, path->dentry, mode, want_excl);
++ err = vfs_create(userns, dir, path->dentry, mode, want_excl);
+ lockdep_on();
+ if (!err) {
+ struct path tmp = *path;
+{
+ int err;
+ struct dentry *d;
++ struct user_namespace *userns;
+
+ IMustLock(dir);
+
+ path->dentry = d;
+ if (unlikely(err))
+ goto out;
++ userns = mnt_user_ns(path->mnt);
+
+ lockdep_off();
-+ err = vfs_symlink(dir, path->dentry, symname);
++ err = vfs_symlink(userns, dir, path->dentry, symname);
+ lockdep_on();
+ if (!err) {
+ struct path tmp = *path;
+{
+ int err;
+ struct dentry *d;
++ struct user_namespace *userns;
+
+ IMustLock(dir);
+
+ path->dentry = d;
+ if (unlikely(err))
+ goto out;
++ userns = mnt_user_ns(path->mnt);
+
+ lockdep_off();
-+ err = vfs_mknod(dir, path->dentry, mode, dev);
++ err = vfs_mknod(userns, dir, path->dentry, mode, dev);
+ lockdep_on();
+ if (!err) {
+ struct path tmp = *path;
+{
+ int err;
+ struct dentry *d;
++ struct user_namespace *userns;
+
+ IMustLock(dir);
+
+ path->dentry = d;
+ if (unlikely(err))
+ goto out;
++ userns = mnt_user_ns(path->mnt);
+
+ lockdep_off();
-+ err = vfs_link(src_dentry, dir, path->dentry, delegated_inode);
++ err = vfs_link(src_dentry, userns, dir, path->dentry, delegated_inode);
+ lockdep_on();
+ if (!err) {
+ struct path tmp = *path;
+ struct inode **delegated_inode, unsigned int flags)
+{
+ int err;
++ struct renamedata rd;
+ struct path tmp = {
+ .mnt = path->mnt
+ };
+ if (unlikely(err))
+ goto out;
+
++ rd.old_mnt_userns = mnt_user_ns(path->mnt);
++ rd.old_dir = src_dir;
++ rd.old_dentry = src_dentry;
++ rd.new_mnt_userns = rd.old_mnt_userns;
++ rd.new_dir = dir;
++ rd.new_dentry = path->dentry;
++ rd.delegated_inode = delegated_inode;
++ rd.flags = flags;
+ lockdep_off();
-+ err = vfs_rename(src_dir, src_dentry, dir, path->dentry,
-+ delegated_inode, flags);
++ err = vfs_rename(&rd);
+ lockdep_on();
+ if (!err) {
+ int did;
+{
+ int err;
+ struct dentry *d;
++ struct user_namespace *userns;
+
+ IMustLock(dir);
+
+ path->dentry = d;
+ if (unlikely(err))
+ goto out;
++ userns = mnt_user_ns(path->mnt);
+
+ lockdep_off();
-+ err = vfs_mkdir(dir, path->dentry, mode);
++ err = vfs_mkdir(userns, dir, path->dentry, mode);
+ lockdep_on();
+ if (!err) {
+ struct path tmp = *path;
+{
+ int err;
+ struct dentry *d;
++ struct user_namespace *userns;
+
+ IMustLock(dir);
+
+ path->dentry = d;
+ if (unlikely(err))
+ goto out;
++ userns = mnt_user_ns(path->mnt);
+
+ lockdep_off();
-+ err = vfs_rmdir(dir, path->dentry);
++ err = vfs_rmdir(userns, dir, path->dentry);
+ lockdep_on();
+ if (!err) {
+ struct path tmp = {
+ int err;
+ struct inode *h_inode;
+ struct super_block *h_sb;
++ struct user_namespace *h_userns;
+
+ if (!h_file) {
+ err = vfsub_truncate(h_path, length);
+ if (!err)
+ err = security_path_truncate(h_path);
+ if (!err) {
++ h_userns = mnt_user_ns(h_path->mnt);
+ lockdep_off();
-+ err = do_truncate(h_path->dentry, length, attr, h_file);
++ err = do_truncate(h_userns, h_path->dentry, length, attr,
++ h_file);
+ lockdep_on();
+ }
+ lockdep_off();
+int vfsub_sio_mkdir(struct inode *dir, struct path *path, int mode)
+{
+ int err, do_sio, wkq_err;
++ struct user_namespace *userns;
+
-+ do_sio = au_test_h_perm_sio(dir, MAY_EXEC | MAY_WRITE);
++ userns = mnt_user_ns(path->mnt);
++ do_sio = au_test_h_perm_sio(userns, dir, MAY_EXEC | MAY_WRITE);
+ if (!do_sio) {
+ lockdep_off();
+ err = vfsub_mkdir(dir, path, mode);
+int vfsub_sio_rmdir(struct inode *dir, struct path *path)
+{
+ int err, do_sio, wkq_err;
++ struct user_namespace *userns;
+
-+ do_sio = au_test_h_perm_sio(dir, MAY_EXEC | MAY_WRITE);
++ userns = mnt_user_ns(path->mnt);
++ do_sio = au_test_h_perm_sio(userns, dir, MAY_EXEC | MAY_WRITE);
+ if (!do_sio) {
+ lockdep_off();
+ err = vfsub_rmdir(dir, path);
+{
+ struct notify_change_args *a = args;
+ struct inode *h_inode;
++ struct user_namespace *userns;
+
+ h_inode = d_inode(a->path->dentry);
+ IMustLock(h_inode);
+
+ *a->errp = -EPERM;
+ if (!IS_IMMUTABLE(h_inode) && !IS_APPEND(h_inode)) {
++ userns = mnt_user_ns(a->path->mnt);
+ lockdep_off();
-+ *a->errp = notify_change(a->path->dentry, a->ia,
++ *a->errp = notify_change(userns, a->path->dentry, a->ia,
+ a->delegated_inode);
+ lockdep_on();
+ if (!*a->errp)
+ struct unlink_args *a = args;
+ struct dentry *d = a->path->dentry;
+ struct inode *h_inode;
++ struct user_namespace *userns;
+ const int stop_sillyrename = (au_test_nfs(d->d_sb)
+ && au_dcount(d) == 1);
+
+ ihold(h_inode);
+ }
+
++ userns = mnt_user_ns(a->path->mnt);
+ lockdep_off();
-+ *a->errp = vfs_unlink(a->dir, d, a->delegated_inode);
++ *a->errp = vfs_unlink(userns, a->dir, d, a->delegated_inode);
+ lockdep_on();
+ if (!*a->errp) {
+ struct path tmp = {
+}
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 2021-02-24 13:33:42.747680497 +0100
-@@ -0,0 +1,354 @@
++++ linux/fs/aufs/vfsub.h 2021-05-02 20:15:14.676670793 +0200
+@@ -0,0 +1,358 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+}
+
+#ifdef CONFIG_FS_POSIX_ACL
-+static inline int vfsub_acl_chmod(struct inode *h_inode, umode_t h_mode)
++static inline int vfsub_acl_chmod(struct user_namespace *h_userns,
++ struct inode *h_inode, umode_t h_mode)
+{
+ int err;
+
-+ err = posix_acl_chmod(h_inode, h_mode);
++ err = posix_acl_chmod(h_userns, h_inode, h_mode);
+ if (err == -EOPNOTSUPP)
+ err = 0;
+ return err;
+}
+#else
-+AuStubInt0(vfsub_acl_chmod, struct inode *h_inode, umode_t h_mode);
++AuStubInt0(vfsub_acl_chmod, struct user_namespace *h_userns,
++ struct inode *h_inode, umode_t h_mode);
+#endif
+
+long vfsub_splice_to(struct file *in, loff_t *ppos,
+
+/* ---------------------------------------------------------------------- */
+
-+static inline int vfsub_setxattr(struct dentry *dentry, const char *name,
++static inline int vfsub_setxattr(struct user_namespace *userns,
++ struct dentry *dentry, const char *name,
+ const void *value, size_t size, int flags)
+{
+ int err;
+
+ lockdep_off();
-+ err = vfs_setxattr(dentry, name, value, size, flags);
++ err = vfs_setxattr(userns, dentry, name, value, size, flags);
+ lockdep_on();
+
+ return err;
+}
+
-+static inline int vfsub_removexattr(struct dentry *dentry, const char *name)
++static inline int vfsub_removexattr(struct user_namespace *userns,
++ struct dentry *dentry, const char *name)
+{
+ int err;
+
+ lockdep_off();
-+ err = vfs_removexattr(dentry, name);
++ err = vfs_removexattr(userns, dentry, name);
+ lockdep_on();
+
+ return err;
+#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 2021-02-24 13:33:42.747680497 +0100
++++ linux/fs/aufs/wbr_policy.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,830 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+};
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 2021-02-24 13:33:42.751013936 +0100
-@@ -0,0 +1,1062 @@
++++ linux/fs/aufs/whout.c 2021-05-02 20:15:14.676670793 +0200
+@@ -0,0 +1,1070 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+ * test if the @wh_name exists under @h_parent.
+ * @try_sio specifies the necessary of super-io.
+ */
-+int au_wh_test(struct dentry *h_parent, struct qstr *wh_name, int try_sio)
++int au_wh_test(struct user_namespace *h_userns, struct dentry *h_parent,
++ struct qstr *wh_name, int try_sio)
+{
+ int err;
+ struct dentry *wh_dentry;
+ if (!try_sio)
+ wh_dentry = vfsub_lkup_one(wh_name, h_parent);
+ else
-+ wh_dentry = au_sio_lkup_one(wh_name, h_parent);
++ wh_dentry = au_sio_lkup_one(h_userns, wh_name, h_parent);
+ err = PTR_ERR(wh_dentry);
+ if (IS_ERR(wh_dentry)) {
+ if (err == -ENAMETOOLONG)
+/*
+ * test if the @h_dentry sets opaque or not.
+ */
-+int au_diropq_test(struct dentry *h_dentry)
++int au_diropq_test(struct user_namespace *h_userns, struct dentry *h_dentry)
+{
+ int err;
+ struct inode *h_dir;
+
+ h_dir = d_inode(h_dentry);
-+ err = au_wh_test(h_dentry, &diropq_name,
-+ au_test_h_perm_sio(h_dir, MAY_EXEC));
++ err = au_wh_test(h_userns, h_dentry, &diropq_name,
++ au_test_h_perm_sio(h_userns, h_dir, MAY_EXEC));
+ return err;
+}
+
+ /* strict atomic_t is unnecessary here */
+ static unsigned short cnt;
+ struct qstr qs;
++ struct user_namespace *h_userns;
+
+ BUILD_BUG_ON(sizeof(cnt) * 2 > AUFS_WH_TMP_LEN);
+
+ *p++ = '.';
+ AuDebugOn(name + qs.len + 1 - p <= AUFS_WH_TMP_LEN);
+
++ h_userns = au_br_userns(br);
+ qs.name = name;
+ for (i = 0; i < 3; i++) {
+ sprintf(p, "%.*x", AUFS_WH_TMP_LEN, cnt++);
-+ dentry = au_sio_lkup_one(&qs, h_parent);
++ dentry = au_sio_lkup_one(h_userns, &qs, h_parent);
+ if (IS_ERR(dentry) || d_is_negative(dentry))
+ goto out_name;
+ dput(dentry);
+ unsigned int flags)
+{
+ struct dentry *diropq, *h_dentry;
++ struct user_namespace *h_userns;
+
++ h_userns = au_sbr_userns(dentry->d_sb, bindex);
+ h_dentry = au_h_dptr(dentry, bindex);
-+ if (!au_test_h_perm_sio(d_inode(h_dentry), MAY_EXEC | MAY_WRITE))
++ if (!au_test_h_perm_sio(h_userns, d_inode(h_dentry),
++ MAY_EXEC | MAY_WRITE))
+ diropq = do_diropq(dentry, bindex, flags);
+ else {
+ int wkq_err;
+ struct path h_tmp;
+ struct inode *wh_inode, *h_dir;
+ struct au_branch *br;
++ struct user_namespace *h_userns;
+
+ h_dir = d_inode(wh_dentry->d_parent); /* dir inode is locked */
+ IMustLock(h_dir);
+
+ br = au_sbr(dir->i_sb, bindex);
++ h_userns = au_br_userns(br);
+ wh_inode = d_inode(wh_dentry);
+ inode_lock_nested(wh_inode, AuLsc_I_CHILD);
+
+ * someone else might change some whiteouts while we were sleeping.
+ * it means this whlist may have an obsoleted entry.
+ */
-+ if (!au_test_h_perm_sio(wh_inode, MAY_EXEC | MAY_WRITE))
++ if (!au_test_h_perm_sio(h_userns, wh_inode, MAY_EXEC | MAY_WRITE))
+ err = del_wh_children(wh_dentry, whlist, bindex, br);
+ else {
+ int wkq_err;
+}
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 2021-02-24 13:33:42.751013936 +0100
-@@ -0,0 +1,86 @@
++++ linux/fs/aufs/whout.h 2021-05-02 20:15:14.676670793 +0200
+@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2005-2020 Junjiro R. Okajima
+
+/* whout.c */
+int au_wh_name_alloc(struct qstr *wh, const struct qstr *name);
-+int au_wh_test(struct dentry *h_parent, struct qstr *wh_name, int try_sio);
-+int au_diropq_test(struct dentry *h_dentry);
++int au_wh_test(struct user_namespace *h_userns, struct dentry *h_parent,
++ struct qstr *wh_name, int try_sio);
++int au_diropq_test(struct user_namespace *h_userns, struct dentry *h_dentry);
+struct au_branch;
+struct dentry *au_whtmp_lkup(struct dentry *h_parent, struct au_branch *br,
+ struct qstr *prefix);
+#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 2021-02-24 13:33:42.751013936 +0100
++++ linux/fs/aufs/wkq.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,372 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+}
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 2021-02-24 13:33:42.751013936 +0100
++++ linux/fs/aufs/wkq.h 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+#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 2021-02-24 13:33:42.751013936 +0100
-@@ -0,0 +1,356 @@
++++ linux/fs/aufs/xattr.c 2021-05-02 20:15:14.676670793 +0200
+@@ -0,0 +1,368 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2014-2020 Junjiro R. Okajima
+
+static const int au_xattr_out_of_list = AuBrAttr_ICEX_OTH << 1;
+
-+static int au_do_cpup_xattr(struct dentry *h_dst, struct dentry *h_src,
++static int au_do_cpup_xattr(struct path *h_dst, struct path *h_src,
+ char *name, char **buf, unsigned int ignore_flags,
+ unsigned int verbose)
+{
+ int err;
+ ssize_t ssz;
+ struct inode *h_idst;
++ struct dentry *h_dst_dentry, *h_src_dentry;
++ struct user_namespace *h_dst_userns, *h_src_userns;
+
-+ ssz = vfs_getxattr_alloc(h_src, name, buf, 0, GFP_NOFS);
++ h_src_userns = mnt_user_ns(h_src->mnt);
++ h_src_dentry = h_src->dentry;
++ ssz = vfs_getxattr_alloc(h_src_userns, h_src_dentry, name, buf, 0,
++ GFP_NOFS);
+ err = ssz;
+ if (unlikely(err <= 0)) {
+ if (err == -ENODATA
+ || (err == -EOPNOTSUPP
+ && ((ignore_flags & au_xattr_out_of_list)
-+ || (au_test_nfs_noacl(d_inode(h_src))
++ || (au_test_nfs_noacl(d_inode(h_src_dentry))
+ && (!strcmp(name, XATTR_NAME_POSIX_ACL_ACCESS)
+ || !strcmp(name,
+ XATTR_NAME_POSIX_ACL_DEFAULT))))
+ }
+
+ /* unlock it temporary */
-+ h_idst = d_inode(h_dst);
++ h_dst_userns = mnt_user_ns(h_dst->mnt);
++ h_dst_dentry = h_dst->dentry;
++ h_idst = d_inode(h_dst_dentry);
+ inode_unlock(h_idst);
-+ err = vfsub_setxattr(h_dst, name, *buf, ssz, /*flags*/0);
++ err = vfsub_setxattr(h_dst_userns, h_dst_dentry, name, *buf, ssz,
++ /*flags*/0);
+ inode_lock_nested(h_idst, AuLsc_I_CHILD2);
+ if (unlikely(err)) {
+ if (verbose || au_debug_test())
+ return err;
+}
+
-+int au_cpup_xattr(struct dentry *h_dst, struct dentry *h_src, int ignore_flags,
++int au_cpup_xattr(struct path *h_dst, struct path *h_src, int ignore_flags,
+ unsigned int verbose)
+{
+ int err, unlocked, acl_access, acl_default;
+ ssize_t ssz;
++ struct dentry *h_dst_dentry, *h_src_dentry;
+ struct inode *h_isrc, *h_idst;
+ char *value, *p, *o, *e;
+
+ /* try stopping to update the source inode while we are referencing */
+ /* there should not be the parent-child relationship between them */
-+ h_isrc = d_inode(h_src);
-+ h_idst = d_inode(h_dst);
++ h_dst_dentry = h_dst->dentry;
++ h_idst = d_inode(h_dst_dentry);
++ h_src_dentry = h_src->dentry;
++ h_isrc = d_inode(h_src_dentry);
+ inode_unlock(h_idst);
+ inode_lock_shared_nested(h_isrc, AuLsc_I_CHILD);
+ inode_lock_nested(h_idst, AuLsc_I_CHILD2);
+ unlocked = 0;
+
+ /* some filesystems don't list POSIX ACL, for example tmpfs */
-+ ssz = vfs_listxattr(h_src, NULL, 0);
++ ssz = vfs_listxattr(h_src_dentry, NULL, 0);
+ err = ssz;
+ if (unlikely(err < 0)) {
+ AuTraceErr(err);
+ o = p;
+ if (unlikely(!p))
+ goto out;
-+ err = vfs_listxattr(h_src, p, ssz);
++ err = vfs_listxattr(h_src_dentry, p, ssz);
+ }
+ inode_unlock_shared(h_isrc);
+ unlocked = 1;
+ break;
+ case AU_XATTR_GET:
+ AuDebugOn(d_is_negative(h_path.dentry));
-+ err = vfs_getxattr(h_path.dentry,
++ err = vfs_getxattr(mnt_user_ns(h_path.mnt), h_path.dentry,
+ arg->u.get.name, arg->u.get.value,
+ arg->u.get.size);
+ break;
+}
+
+static int au_xattr_set(const struct xattr_handler *handler,
++ struct user_namespace *userns,
+ struct dentry *dentry, struct inode *inode,
+ const char *name, const void *value, size_t size,
+ int flags)
+}
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 2021-02-24 13:33:42.751013936 +0100
++++ linux/fs/aufs/xino.c 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,1925 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ }
+
+ /* no need to mnt_want_write() since we call dentry_open() later */
-+ err = vfs_create(dir, path.dentry, 0666, NULL);
++ err = vfs_create(mnt_user_ns(base->mnt), dir, path.dentry, 0666, NULL);
+ if (unlikely(err)) {
+ file = ERR_PTR(err);
+ pr_err("%pd create err %d\n", dentry, 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 2021-02-24 13:33:42.751013936 +0100
++++ linux/include/uapi/linux/aufs_type.h 2021-05-02 20:15:14.676670793 +0200
@@ -0,0 +1,452 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+#include <limits.h>
+#endif /* __KERNEL__ */
+
-+#define AUFS_VERSION "5.11-20210222"
++#define AUFS_VERSION "5.12-20210503"
+
+/* todo? move this to linux-2.6.19/include/magic.h */
+#define AUFS_SUPER_MAGIC ('a' << 24 | 'u' << 16 | 'f' << 8 | 's')
+
+#endif /* __AUFS_TYPE_H__ */
SPDX-License-Identifier: GPL-2.0
-aufs5.11 loopback patch
+aufs5.12 loopback patch
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
-index 39d539df0349d..4109efe2f6a3a 100644
+index 01ca256575fb2..f5a76bacf6c85 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -646,6 +646,15 @@ static inline void loop_update_dio(struct loop_device *lo)
gfp_t gfp = lo->old_gfp_mask;
struct block_device *bdev = lo->lo_device;
int err = 0;
-@@ -1235,6 +1267,7 @@ static int __loop_clr_fd(struct loop_device *lo, bool release)
+@@ -1238,6 +1270,7 @@ static int __loop_clr_fd(struct loop_device *lo, bool release)
spin_lock_irq(&lo->lo_lock);
lo->lo_backing_file = NULL;
spin_unlock_irq(&lo->lo_lock);
loop_release_xfer(lo);
-@@ -1317,6 +1350,8 @@ static int __loop_clr_fd(struct loop_device *lo, bool release)
+@@ -1319,6 +1352,8 @@ static int __loop_clr_fd(struct loop_device *lo, bool release)
*/
if (filp)
fput(filp);
}
diff --git a/drivers/block/loop.h b/drivers/block/loop.h
-index af75a5ee40944..1d847cb194ff6 100644
+index a3c04f310672e..161c3c5d1c22b 100644
--- a/drivers/block/loop.h
+++ b/drivers/block/loop.h
@@ -46,7 +46,7 @@ struct loop_device {
void *key_data;
diff --git a/fs/aufs/f_op.c b/fs/aufs/f_op.c
-index 5ef279a59bb14..6447c37f98756 100644
+index 9f58ba0cb769f..1c2267a5a2ae1 100644
--- a/fs/aufs/f_op.c
+++ b/fs/aufs/f_op.c
@@ -304,7 +304,7 @@ static ssize_t aufs_read_iter(struct kiocb *kio, struct iov_iter *iov_iter)
#endif /* __KERNEL__ */
diff --git a/fs/aufs/super.c b/fs/aufs/super.c
-index 589dd01220201..801e0a7faec59 100644
+index d252963a87b53..ecfc5fc96ad8c 100644
--- a/fs/aufs/super.c
+++ b/fs/aufs/super.c
@@ -844,7 +844,10 @@ static const struct super_operations aufs_sop = {
/* ---------------------------------------------------------------------- */
diff --git a/include/linux/fs.h b/include/linux/fs.h
-index 91f3fbe5b57ff..ad1b2e44d538b 100644
+index 4fa4b24535fde..2aec4bc9f5aa1 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
-@@ -1965,6 +1965,10 @@ struct super_operations {
+@@ -2041,6 +2041,10 @@ struct super_operations {
struct shrink_control *);
long (*free_cached_objects)(struct super_block *,
struct shrink_control *);
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