From: Bob Peterson <rpeterso@redhat.com>
Date: Wed, 22 Aug 2007 16:15:29 +0000 (-0500)
Subject: [GFS2] Patch to protect sd_log_num_jdata
X-Git-Tag: v2.6.24-rc1~1405^2~23
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ec217e0ece60f2240772e6f08e0529775846c627;p=pandora-kernel.git

[GFS2] Patch to protect sd_log_num_jdata

This is a patch to GFS2 to protect sd_log_num_jdata with the
gfs2_log_lock.  Without this patch, there is a timing window
where you can get hit the following assert from function
gfs2_log_flush():

gfs2_assert_withdraw(sdp,
			sdp->sd_log_num_buf + sdp->sd_log_num_jdata ==
			sdp->sd_log_commited_buf +
			sdp->sd_log_commited_databuf);

I've tested it on my roth cluster and it fixes the problem.

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