linux-kernel - Re: [PATCH] memcg: avoid overflow in memcg_hierarchical_free

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Message-ID: <AANLkTikDUkFgZ67tLeB080UhQByOc4yk4xmKTyEkJYq4@mail.gmail.com>
Date:	Tue, 9 Nov 2010 10:28:08 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Greg Thelen <gthelen@...gle.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
	Johannes Weiner <hannes@...xchg.org>,
	Wu Fengguang <fengguang.wu@...el.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] memcg: avoid overflow in memcg_hierarchical_free_pages()

On Tue, Nov 9, 2010 at 10:15 AM, Greg Thelen <gthelen@...gle.com> wrote:
> Use page counts rather than byte counts to avoid overflowing
> unsigned long local variables.
>
> Signed-off-by: Greg Thelen <gthelen@...gle.com>
Reviewed-by: Minchan Kim <minchan.kim@...il.com>
-- 
Kind regards,
Minchan Kim
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