From: Joel Becker <joel.becker@oracle.com>
Date: Sat, 3 Feb 2007 11:04:20 +0000 (-0800)
Subject: ocfs2: Concurrent access of o2hb_region->hr_task was not locked
X-Git-Tag: v2.6.21-rc4~6^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e6c352dbc0f4dc7e3f82feafb9e6207c5814a189;p=pandora-kernel.git

ocfs2: Concurrent access of o2hb_region->hr_task was not locked

This means that a build-up and a teardown could race which would result in a
double-kthread_stop().

Protect the setting and clearing of hr_task with o2hb_live_lock, as it's not
a common thing and not performance critical.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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