From: Tejun Heo <tj@kernel.org>
Date: Mon, 1 Apr 2013 18:23:32 +0000 (-0700)
Subject: workqueue: move pwq_pool_locking outside of get/put_unbound_pool()
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~125^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a892cacc7f4960a39c0fad7bbdf04c5cbf7c229e;p=pandora-kernel.git

workqueue: move pwq_pool_locking outside of get/put_unbound_pool()

The scheduled NUMA affinity support for unbound workqueues would need
to walk workqueues list and pool related operations on each workqueue.

Move wq_pool_mutex locking out of get/put_unbound_pool() to their
callers so that pool operations can be performed while walking the
workqueues list, which is also protected by wq_pool_mutex.

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