From: Ian Kent <raven@themaw.net>
Date: Sun, 25 Jun 2006 12:48:47 +0000 (-0700)
Subject: [PATCH] autofs4: need to invalidate children on tree mount expire
X-Git-Tag: v2.6.18-rc1~927
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f9022f66336b8ad680884d4810f1c421fff899e3;p=pandora-kernel.git

[PATCH] autofs4: need to invalidate children on tree mount expire

I've found a case where invalid dentrys in a mount tree, waiting to be
cleaned up by d_invalidate, prevent the expected expire.

In this case dentrys created during a lookup for which a mount fails or has
no entry in the mount map contribute to the d_count of the parent dentry.
These dentrys may not be invalidated prior to comparing the interanl usage
count of valid autofs dentrys against the dentry d_count which makes a
mount tree appear busy so it doesn't expire.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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