linux-kernel - Re: [PATCH v3 11/11] memcg: check memcg dirty limits in page writeback

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Message-Id: <20101020131857.cd0ecd38.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Wed, 20 Oct 2010 13:18:57 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	Greg Thelen <gthelen@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	containers@...ts.osdl.org, Andrea Righi <arighi@...eler.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
	Minchan Kim <minchan.kim@...il.com>,
	Ciju Rajan K <ciju@...ux.vnet.ibm.com>,
	David Rientjes <rientjes@...gle.com>
Subject: Re: [PATCH v3 11/11] memcg: check memcg dirty limits in page
 writeback

On Tue, 19 Oct 2010 10:00:15 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> wrote:

> On Mon, 18 Oct 2010 17:39:44 -0700
> Greg Thelen <gthelen@...gle.com> wrote:
> 
> > If the current process is in a non-root memcg, then
> > global_dirty_limits() will consider the memcg dirty limit.
> > This allows different cgroups to have distinct dirty limits
> > which trigger direct and background writeback at different
> > levels.
> > 
> > Signed-off-by: Andrea Righi <arighi@...eler.com>
> > Signed-off-by: Greg Thelen <gthelen@...gle.com>
> 
> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> 
Why FREEPAGES in memcg is not counted as dirtyable ?

Thanks,
-Kame

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