From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Tue, 19 Mar 2013 19:28:10 +0000 (+0800)
Subject: workqueue: use rcu_read_lock_sched() instead for accessing pwq in RCU
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~125^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=881094532e2a27406a5f06f839087bd152a8a494;p=pandora-kernel.git

workqueue: use rcu_read_lock_sched() instead for accessing pwq in RCU

rcu_read_lock_sched() is better than preempt_disable() if the code is
protected by RCU_SCHED.

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