linux-kernel - Re: [PATCH 3/3] memcg: move page-freeing code outside of lock

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Message-ID: <1300763079.1483.21.camel@leonhard>
Date:	Tue, 22 Mar 2011 12:04:39 +0900
From:	Namhyung Kim <namhyung@...il.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	Paul Menage <menage@...gle.com>, Li Zefan <lizf@...fujitsu.com>,
	containers@...ts.linux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] memcg: move page-freeing code outside of lock

2011-03-22 (화), 08:59 +0900, KAMEZAWA Hiroyuki:
> On Fri, 18 Mar 2011 21:54:15 +0900
> Namhyung Kim <namhyung@...il.com> wrote:
> 
> > Signed-off-by: Namhyung Kim <namhyung@...il.com>
> > Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> 
> What is the benefit of this patch ?
> 
> -Kame
> 

Oh, I just thought generally it'd better call such a (potentially)
costly function outside of locks and it could reduce few of theoretical
contentions between swapons and/or offs. If it doesn't help any
realistic cases I don't mind discarding it.

Thanks.


-- 
Regards,
Namhyung Kim


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