From: Wengang Wang <wen.gang.wang@oracle.com>
Date: Thu, 3 Sep 2009 07:56:33 +0000 (+0800)
Subject: ocfs2: add spinlock protection when dealing with lockres->purge.
X-Git-Tag: v2.6.32-rc1~173^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83e32d9044a4510fffdf65c2691a25c0ba84e259;p=pandora-kernel.git

ocfs2: add spinlock protection when dealing with lockres->purge.

when we check/modify lockres->purge, we should with the protection of lockres->spinlock.
in dlm_purge_lockres(), the checking/modifying is not with the protectin.
this patch fixes it.

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
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