linux-kernel - Re: [PATCH 1/3] memcg: fix account leak at failure of memsw acconting.

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Message-Id: <20110125173116.49490683.nishimura@mxp.nes.nec.co.jp>
Date:	Tue, 25 Jan 2011 17:31:16 +0900
From:	Daisuke Nishimura <nishimura@....nes.nec.co.jp>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"hannes@...xchg.org" <hannes@...xchg.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	stable@...nel.org, Daisuke Nishimura <nishimura@....nes.nec.co.jp>
Subject: Re: [PATCH 1/3] memcg: fix account leak at failure of memsw
 acconting.

On Tue, 25 Jan 2011 15:00:42 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> wrote:

> This is required for 2.6.36-stable and later.
> ==
> Commit 4b53433468c87794b523e4683fbd4e8e8aca1f63 removes
> a cancel of charge at case: 
> memory charge-> success.
> mem+swap charge-> failure.
> 
> This leaks usage of memory. Fix it.
> 
> This patch is required for stable tree since 2.6.36.
> 
> CC: stable@...nel.org
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>

Nice catch.

Acked-by: Daisuke Nishimura <nishimura@....nes.nec.co.jp>
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