tree 39b64a674fd616c0e50f07d3d042dc71e2c4d380
parent 954829863d3017d1c14600c975f9b92696d36836
author David Jeffery <djeffery@redhat.com> 1367819370 +0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1367870819 -0700

autofs - remove autofs dentry mount check

When checking if an autofs mount point is busy it isn't sufficient to
only check if it's a mount point.

For example, if the mount of an offset mountpoint in a tree is denied
for this host by its export and the dentry becomes a process working
directory the check incorrectly returns the mount as not in use at
expire.

This can happen since the default when mounting within a tree is
nostrict, which means ingnore mount fails on mounts within the tree and
continue.  The nostrict option is meant to allow mounting in this case.

Signed-off-by: David Jeffery <djeffery@redhat.com>
Signed-off-by: Ian Kent <raven@themaw.net>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>