From: Wendy Cheng <wcheng@redhat.com>
Date: Fri, 5 Oct 2007 04:27:58 +0000 (-0400)
Subject: [GFS2] Handle multiple glock demote requests
X-Git-Tag: v2.6.25-rc1~1241^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cc7e79b168a552152299bd8a8254dc099aacc993;p=pandora-kernel.git

[GFS2] Handle multiple glock demote requests

Fix a race condition where multiple glock demote requests are sent to
a node back-to-back. This patch does a check inside handle_callback()
to see whether a demote request is in progress. If true, it sets a flag
to make sure run_queue() will loop again to handle the new request,
instead of erronously setting gl_demote_state to a different state.

Signed-off-by: S. Wendy Cheng <wcheng@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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