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SELinux's d_instantiate hook calls __vfs_getxattr() BEFORE d_inode is
set.  Aufs should not rely upon d_inode and should use the parameter
inode instead.
Reported-by: "jon bird" <news@onasticksoftware.co.uk>
Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>
(cherry picked from commit 5777718fd657e1cfdf006cd16b524c65cf2fe09b)

In linux v5.7-rc2, zero-length array declarations are replaced by FAM
(flexible-array member),
	a2008395fe2e 2020-04-18 dirent.h: Replace zero-length array with flexible-array member

Aufs simply follows this trend.
Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>
(cherry picked from commit 747a01ec1835988fa20177789a6fb65c5198fcb9)

This reverts commit ea0e8150.

Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

In aufs5.4, kmemleak reported several false positives in
fs/aufs/xino.c.  I don't know why, but it may be related to the
"delayed" kfree (by RCU).  So I simply replace it by direct kfree()
call.
Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>
(cherry picked from commit 03836b8128073f92b4e4a1cb54f91d0d7c290d1f)

Simply follows the changes in mainline,
	d56c0d45f0e2 2020-02-04 proc: decouple proc from VFS with "struct proc_ops"
Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

This reverts commit a3a2af05.

Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>
(cherry picked from commit 56b4b776c84f364384971c4cdfd66b4a2f0696d4)

Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

# Conflicts:
#	include/uapi/linux/aufs_type.h

Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

# Conflicts:
#	include/uapi/linux/aufs_type.h

Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

# Conflicts:
#	fs/aufs/i_op.c
#	include/uapi/linux/aufs_type.h

Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

# Conflicts:
#	include/uapi/linux/aufs_type.h

Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

# Conflicts:
#	include/uapi/linux/aufs_type.h

Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>
(cherry picked from commit 0f5f91bda77d0690c23732fd2592ae97c908a704)