From: Lai Jiangshan <laijs@cn.fujitsu.com>
Date: Tue, 20 May 2014 09:46:30 +0000 (+0800)
Subject: workqueue: destroy worker directly in the idle timeout handler
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~83^2~12
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3347fc9f36e7e5d3ebe504fc4034745b5d8971d3;p=pandora-kernel.git

workqueue: destroy worker directly in the idle timeout handler

Since destroy_worker() doesn't need to sleep nor require manager_mutex,
destroy_worker() can be directly called in the idle timeout
handler, it helps us remove POOL_MANAGE_WORKERS and
maybe_destroy_worker() and simplify the manage_workers()

After POOL_MANAGE_WORKERS is removed, worker_thread() doesn't
need to test whether it needs to manage after processed works.
So we can remove the test branch.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
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