linux-kernel - Re: [patch 6/8] vmscan: change zone_nr_lru_pages to take memcg instead of scan control

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Message-ID: <20110602142857.GD28684@cmpxchg.org>
Date:	Thu, 2 Jun 2011 16:28:57 +0200
From:	Johannes Weiner <hannes@...xchg.org>
To:	Hiroyuki Kamezawa <kamezawa.hiroyuki@...il.com>
Cc:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Ying Han <yinghan@...gle.com>, Michal Hocko <mhocko@...e.cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>,
	Minchan Kim <minchan.kim@...il.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Mel Gorman <mgorman@...e.de>, Greg Thelen <gthelen@...gle.com>,
	Michel Lespinasse <walken@...gle.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 6/8] vmscan: change zone_nr_lru_pages to take memcg
 instead of scan control

On Thu, Jun 02, 2011 at 10:30:48PM +0900, Hiroyuki Kamezawa wrote:
> 2011/6/1 Johannes Weiner <hannes@...xchg.org>:
> > This function only uses sc->mem_cgroup from the scan control.  Change
> > it to take a memcg argument directly, so callsites without an actual
> > reclaim context can use it as well.
> >
> > Signed-off-by: Johannes Weiner <hannes@...xchg.org>
> 
> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> 
> I wonder this can be cut out and cab be merged immediately, no ?

I don't see anything standing in the way of that.  OTOH, all current
users have scan controls, so it's not really urgent, either.

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