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In-Reply-To: <20081205212529.8d895526.nishimura@mxp.nes.nec.co.jp>
References: <20081205212208.31d904e0.nishimura@mxp.nes.nec.co.jp>
    <20081205212529.8d895526.nishimura@mxp.nes.nec.co.jp>
Date: Fri, 5 Dec 2008 22:30:40 +0900 (JST)
Subject: Re: [RFC][PATCH -mmotm 4/4] memcg: change try_to_free_pages
     tohierarchical_reclaim
From: "KAMEZAWA Hiroyuki" <kamezawa.hiroyu@jp.fujitsu.com>
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To: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: LKML <linux-kernel@vger.kernel.org>, linux-mm <linux-mm@kvack.org>, Balbir Singh <balbir@linux.vnet.ibm.com>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>, Pavel Emelyanov <xemul@openvz.org>, Li Zefan <lizf@cn.fujitsu.com>, Paul Menage <menage@google.com>
List-ID: <linux-mm.kvack.org>

Daisuke Nishimura said:
> mem_cgroup_hierarchicl_reclaim() works properly even when !use_hierarchy
> now,
> so, instead of try_to_free_mem_cgroup_pages(), it should be used in many
> cases.
>
> The only exception is force_empty. The group has no children in this case.
>
Hmm...I postponed this until removing cgroup_lock from reclaim..
But ok, this is a way to go,
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>



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