From: Alasdair G Kergon <agk@redhat.com>
Date: Tue, 6 Jan 2009 03:05:13 +0000 (+0000)
Subject: dm mpath: move trigger_event to system workqueue
X-Git-Tag: v2.6.29-rc1~492^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fe9cf30eb8186ef267d1868dc9f12f2d0f40835a;p=pandora-kernel.git

dm mpath: move trigger_event to system workqueue

The same workqueue is used both for sending uevents and processing queued I/O.
Deadlock has been reported in RHEL5 when sending a uevent was blocked waiting
for the queued I/O to be processed.  Use scheduled_work() for the asynchronous
uevents instead.

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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