linux-kernel - Re: [PATCH] kthread_work: wake up worker only when the worker is idle

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Message-ID: <20140728181127.GB7462@htj.dyndns.org>
Date:	Mon, 28 Jul 2014 14:11:27 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Lai Jiangshan <laijs@...fujitsu.com>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Rientjes <rientjes@...gle.com>,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	Nishanth Aravamudan <nacc@...ux.vnet.ibm.com>
Subject: Re: [PATCH] kthread_work: wake up worker only when the worker is idle

On Sat, Jul 26, 2014 at 12:03:59PM +0800, Lai Jiangshan wrote:
> If the worker task is not idle, it may sleep on some conditions by the request
> of the work.  Our unfriendly wakeup in the insert_kthread_work() may confuse
> the worker.
> 
> Signed-off-by: Lai Jiangshan <laijs@...fujitsu.com>

Applied to wq/for-3.17.

Thanks.

-- 
tejun
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