linux-kernel - Re: [PATCH v9 13/13] memcg: check memcg dirty limits in page writeback

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Message-Id: <20110818104020.cb025fe1.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Thu, 18 Aug 2011 10:40:20 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Greg Thelen <gthelen@...gle.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	containers@...ts.osdl.org, linux-fsdevel@...r.kernel.org,
	Balbir Singh <bsingharora@...il.com>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
	Minchan Kim <minchan.kim@...il.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Dave Chinner <david@...morbit.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	Andrea Righi <andrea@...terlinux.com>,
	Ciju Rajan K <ciju@...ux.vnet.ibm.com>,
	David Rientjes <rientjes@...gle.com>
Subject: Re: [PATCH v9 13/13] memcg: check memcg dirty limits in page
 writeback

On Wed, 17 Aug 2011 09:15:05 -0700
Greg Thelen <gthelen@...gle.com> wrote:

> If the current process is in a non-root memcg, then
> balance_dirty_pages() will consider the memcg dirty limits as well as
> the system-wide limits.  This allows different cgroups to have distinct
> dirty limits which trigger direct and background writeback at different
> levels.
> 
> If called with a mem_cgroup, then throttle_vm_writeout() queries the
> given cgroup for its dirty memory usage limits.
> 
> Signed-off-by: Andrea Righi <andrea@...terlinux.com>
> Signed-off-by: Greg Thelen <gthelen@...gle.com>

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>


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