linux-kernel - Re: [PATCH v8 12/12] memcg: check memcg dirty limits in page writeback

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Message-ID: <20110605045255.GD5914@barrios-laptop>
Date:	Sun, 5 Jun 2011 13:52:55 +0900
From:	Minchan Kim <minchan.kim@...il.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,
	Andrea Righi <arighi@...eler.com>,
	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>,
	Ciju Rajan K <ciju@...ux.vnet.ibm.com>,
	David Rientjes <rientjes@...gle.com>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	Dave Chinner <david@...morbit.com>
Subject: Re: [PATCH v8 12/12] memcg: check memcg dirty limits in page
 writeback

On Fri, Jun 03, 2011 at 09:16:37AM -0700, Greg Thelen 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 <arighi@...eler.com>
> Signed-off-by: Greg Thelen <gthelen@...gle.com>
> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> Acked-by: Wu Fengguang <fengguang.wu@...el.com>
Reviewed-by: Minchan Kim <minchan.kim@...il.com>

-- 
Kind regards
Minchan Kim
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