From: Tejun Heo <tj@kernel.org>
Date: Tue, 12 Mar 2013 18:30:04 +0000 (-0700)
Subject: workqueue: restructure __alloc_workqueue_key()
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~125^2~59
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d2c1d40487bb1884be085c187233084f80df052d;p=pandora-kernel.git

workqueue: restructure __alloc_workqueue_key()

* Move initialization and linking of pool_workqueues into
  init_and_link_pwq().

* Make the failure path use destroy_workqueue() once pool_workqueue
  initialization succeeds.

These changes are to prepare for dynamic management of pool_workqueues
and don't introduce any functional changes.

While at it, convert list_del(&wq->list) to list_del_init() as a
precaution as scheduled changes will make destruction more complex.

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