From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Mon, 25 Mar 2013 23:57:19 +0000 (-0700)
Subject: workqueue: remove pwq_lock which is no longer used
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~125^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b5927605478b740d73192f587e458de1632106e8;p=pandora-kernel.git

workqueue: remove pwq_lock which is no longer used

To simplify locking, the previous patches expanded wq->mutex to
protect all fields of each workqueue instance including the pwqs list
leaving pwq_lock without any user.  Remove the unused pwq_lock.

tj: Rebased on top of the current dev branch.  Updated description.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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