From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with ESMTP id 8327D6B004A for ; Thu, 2 Jun 2011 10:27:59 -0400 (EDT) Date: Thu, 2 Jun 2011 16:27:38 +0200 From: Johannes Weiner Subject: Re: [patch 7/8] vmscan: memcg-aware unevictable page rescue scanner Message-ID: <20110602142738.GC28684@cmpxchg.org> References: <1306909519-7286-1-git-send-email-hannes@cmpxchg.org> <1306909519-7286-8-git-send-email-hannes@cmpxchg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Hiroyuki Kamezawa Cc: KAMEZAWA Hiroyuki , Daisuke Nishimura , Balbir Singh , Ying Han , Michal Hocko , Andrew Morton , Rik van Riel , Minchan Kim , KOSAKI Motohiro , Mel Gorman , Greg Thelen , Michel Lespinasse , linux-mm@kvack.org, linux-kernel@vger.kernel.org On Thu, Jun 02, 2011 at 10:27:15PM +0900, Hiroyuki Kamezawa wrote: > 2011/6/1 Johannes Weiner : > > Once the per-memcg lru lists are exclusive, the unevictable page > > rescue scanner can no longer work on the global zone lru lists. > > > > This converts it to go through all memcgs and scan their respective > > unevictable lists instead. > > > > Signed-off-by: Johannes Weiner > > Hm, isn't it better to have only one GLOBAL LRU for unevictable pages ? > memcg only needs counter for unevictable pages and LRU is not necessary > to be per memcg because we don't reclaim it... That's true, and I will look into it. But keep in mind that it needs special-casing that one list type from all the others, so maybe it's just easier to keep it like this. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org