tree 35e1ed80b8a78b53538d73bd99525d17def9a7f5
parent c2096537d40f026672c4c6adfcd7247ce5799604
author Miklos Szeredi <miklos@szeredi.hu> 1414420921 +0100
committer Al Viro <viro@zeniv.linux.org.uk> 1414535567 -0400

overlayfs: fix lockdep misannotation

In an overlay directory that shadows an empty lower directory, say
/mnt/a/empty102, do:

 	touch /mnt/a/empty102/x
 	unlink /mnt/a/empty102/x
 	rmdir /mnt/a/empty102

It's actually harmless, but needs another level of nesting between
I_MUTEX_CHILD and I_MUTEX_NORMAL.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Tested-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>