From: Steven Whitehouse <swhiteho@redhat.com>
Date: Mon, 27 Nov 2006 14:55:28 +0000 (-0500)
Subject: [GFS2] Fix recursive locking in gfs2_permission
X-Git-Tag: v2.6.20-rc1~145^2^2~5^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=300c7d75f3a5e8edd3e390ccd56b808f3fb14e33;p=pandora-kernel.git

[GFS2] Fix recursive locking in gfs2_permission

Since gfs2_permission may be called either from the VFS (in which case
we need to obtain a shared glock) or from GFS2 (in which case we already
have a glock) we need to test to see whether or not a lock is required.
The original test was buggy due to a potential race. This one should
be safe.

This fixes Red Hat bugzilla #217129

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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