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This reverts commit bcbcb099.

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

The commit in mainline
	5dc33592e9553 2021-04-05 lockdep: Allow tuning tracing capacity constants.
maks lockdep-debug.patch in aufs5-standalone.git unnecessary.
Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

proc_mounts.patch in aufs5-standalone.git is gone since aufs5.8.
Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

This reverts commit 5cd24b8d.

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

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

In Documentation/ABI/testing/{debug,sys}fs-aufs, I used a notation as
	brabraN, brabra1 ... brabraN
But it caused an error in "make htmldocs".

Reported-by: GI Jack
See-also: https://github.com/sfjro/aufs5-standalone/issues/4

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

To make aufs internal functions can prepare 'userns' for VFS internal
functions.
Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

In mainline, by the commit
	549c7297717c3 2021-01-24 fs: make helpers idmap mount aware
and its series, a new parameter 'user_ns' was added to some inode
operations.  Aufs simply follows it, but it is still testing.
Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

This reverts commit 93ec4dd2.

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

Aufs has an internal debugging feature which uses LOCKDEP.
Without LOCKDEP, aufs cannot get the correct lock status.  As a
result, BUG_ON() was called unexpectedly.
In other words, with the configuration of CONFIG_AUFS_DEBUG enabled
and CONFIG_LOCKDEP disabled, a bug appears.
Reported-by: "Zhengyuan Liu" <liuzhengyuan@g.ycsipg.com>
See-also: https://www.mail-archive.com/aufs-users@lists.sourceforge.net/msg05829.html

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

By the commit in mainline v5.11-rc1,
cd539cff9470f 2020-11-02 lockdep: Provide dummy forward declaration of
	*_is_held() helpers
aufs has to introduce a workaround in case of !LOCKDEP to call
*_is_held() helpers.
Signed-off-by: J. R. Okajima <hooanon05g@gmail.com>

This reverts commit 7ab47e64.

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