linux-kernel - Re: [patch 10/11] mm: make per-memcg LRU lists exclusive

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Message-Id: <20110913194704.783d0547.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Tue, 13 Sep 2011 19:47:04 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Johannes Weiner <jweiner@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Daisuke Nishimura <nishimura@....nes.nec.co.jp>,
	Balbir Singh <bsingharora@...il.com>,
	Ying Han <yinghan@...gle.com>, Michal Hocko <mhocko@...e.cz>,
	Greg Thelen <gthelen@...gle.com>,
	Michel Lespinasse <walken@...gle.com>,
	Rik van Riel <riel@...hat.com>,
	Minchan Kim <minchan.kim@...il.com>,
	Christoph Hellwig <hch@...radead.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patch 10/11] mm: make per-memcg LRU lists exclusive

On Mon, 12 Sep 2011 12:57:27 +0200
Johannes Weiner <jweiner@...hat.com> wrote:

> Now that all code that operated on global per-zone LRU lists is
> converted to operate on per-memory cgroup LRU lists instead, there is
> no reason to keep the double-LRU scheme around any longer.
> 
> The pc->lru member is removed and page->lru is linked directly to the
> per-memory cgroup LRU lists, which removes two pointers from a
> descriptor that exists for every page frame in the system.
> 
> Signed-off-by: Johannes Weiner <jweiner@...hat.com>
> Signed-off-by: Hugh Dickins <hughd@...gle.com>
> Signed-off-by: Ying Han <yinghan@...gle.com>

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

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