From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Tue, 3 Jun 2014 07:33:27 +0000 (+0800)
Subject: workqueue: clear POOL_DISASSOCIATED in rebind_workers()
X-Git-Tag: cleanup-for-v3.18~151^2~13
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3de5e88485b22f30403045bd83d4815ae2207b19;p=pandora-kernel.git

workqueue: clear POOL_DISASSOCIATED in rebind_workers()

a9ab775bcadf ("workqueue: directly restore CPU affinity of workers
from CPU_ONLINE") moved pool locking into rebind_workers() but left
"pool->flags &= ~POOL_DISASSOCIATED" in workqueue_cpu_up_callback().

There is nothing necessarily wrong with it, but there is no benefit
either.  Let's move it into rebind_workers() and achieve the following
benefits:

  1) better readability, POOL_DISASSOCIATED is cleared in rebind_workers()
     as expected.

  2) we can guarantee that, when POOL_DISASSOCIATED is clear, the
     running workers of the pool are on the local CPU (pool->cpu).

tj: Minor description update.

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