linux-kernel - Re: [PATCH v2] workqueue: detach rescuer from pool until the last

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Message-ID: <20140722152726.GE13851@htj.dyndns.org>
Date:	Tue, 22 Jul 2014 11:27:26 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] workqueue: detach rescuer from pool until the last

On Tue, Jul 22, 2014 at 01:03:47PM +0800, Lai Jiangshan wrote:
> In 51697d393922 ("workqueue: use generic attach/detach routine for rescuers"),
> The rescuer detaches itself from the pool before put_pwq() so that
> the put_unbound_pool() will not destroy the rescuer-attached pool.
> 
> It is unnecessary, worker_detach_from_pool() can be used as the last
> statement to access to the pool as the same as the regular workers,
> put_unbound_pool() will wait for it to detach and then free the pool.
> 
> So we move the worker_detach_from_pool() down, make it coincide with
> the regular workers.
> 
> Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>

Applied to wq/for-3.17.

Thanks.

-- 
tejun
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