linux-kernel - Re: [PATCH 2/2] workqueue: Keep activate-order equals to queue

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Date:	Wed, 19 Sep 2012 10:42:13 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] workqueue: Keep activate-order equals to
 queue_work()-order

Hello, Lai.

On Wed, Sep 19, 2012 at 06:13:24PM +0800, Lai Jiangshan wrote:
> From 314d43f087c85b11a29be0555f32deeb742bf18e Mon Sep 17 00:00:00 2001
> From: Lai Jiangshan <laijs@...fujitsu.com>
> Date: Tue, 18 Sep 2012 16:26:30 +0800
> Subject: [PATCH] workqueue: use common cwq_set_max_active() for
>  workqueue_set_max_active()
> 
> workqueue_set_max_active() may increase ->max_active without activating
> delayed works. And it may cause the activation order doesn't equal to
> to queue_work()-order.
> 
> To make things consist, we use common cwq_set_max_active() logic which
> immediately makes use of the newly increased max_mactive if there are
> delayed work items and also keep activation ordering.
> 
> Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>

Applied 1-2 to wq/for-3.7 with minor updates to comments and
descriptions.

Thanks for doing this!

-- 
tejun
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