linux-kernel - Re: [PATCH resend 1/3] vmpressure: change vmpressure::sr

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Message-ID: <20130723161724.GA21100@mtj.dyndns.org>
Date:	Tue, 23 Jul 2013 12:17:24 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Michal Hocko <mhocko@...e.cz>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Anton Vorontsov <anton.vorontsov@...aro.org>,
	Johannes Weiner <hannes@...xchg.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Li Zefan <lizefan@...wei.com>, linux-mm@...ck.org,
	cgroups@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH resend 1/3] vmpressure: change vmpressure::sr_lock to
 spinlock

Hello, Michal.

Sorry about the delay.  Was on the road.

On Fri, Jul 19, 2013 at 06:51:09PM +0200, Michal Hocko wrote:
> There is nothing that can sleep inside critical sections protected by
> this lock and those sections are really small so there doesn't make much
> sense to use mutex for them. Change the log to a spinlock
> 
> Brought-up-by: Tejun Heo <tj@...nel.org>
> Signed-off-by: Michal Hocko <mhocko@...e.cz>

Reviewed-by: Tejun Heo <tj@...nel.org>

Thanks.

-- 
tejun
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