linux-kernel - Re: [PATCH v2 06/11] memcg: kmem controller infrastructure

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Message-ID: <502DECE2.9090402@parallels.com>
Date:	Fri, 17 Aug 2012 11:04:02 +0400
From:	Glauber Costa <glommer@...allels.com>
To:	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
CC:	<linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
	<cgroups@...r.kernel.org>, <devel@...nvz.org>,
	Michal Hocko <mhocko@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Lameter <cl@...ux.com>,
	David Rientjes <rientjes@...gle.com>,
	Pekka Enberg <penberg@...nel.org>,
	Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: [PATCH v2 06/11] memcg: kmem controller infrastructure

On 08/17/2012 06:36 AM, Kamezawa Hiroyuki wrote:
> I just want to see the same logic used in mem_cgroup_uncharge_common().
> Hmm, at setting pc->mem_cgroup, the things happens in
>    set pc->mem_cgroup
>    set Used bit
> order. If you clear pc->mem_cgroup
>    unset Used bit
>    clear pc->mem_cgroup
> seems reasonable.

Makes sense. I'll make sure we're consistent here.

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