From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with ESMTP id 8273F6B0022 for ; Mon, 16 May 2011 04:08:27 -0400 (EDT) Received: from m3.gw.fujitsu.co.jp (unknown [10.0.50.73]) by fgwmail5.fujitsu.co.jp (Postfix) with ESMTP id 45DE73EE0C1 for ; Mon, 16 May 2011 17:08:22 +0900 (JST) Received: from smail (m3 [127.0.0.1]) by outgoing.m3.gw.fujitsu.co.jp (Postfix) with ESMTP id 2A80D45DF49 for ; Mon, 16 May 2011 17:08:22 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (s3.gw.fujitsu.co.jp [10.0.50.93]) by m3.gw.fujitsu.co.jp (Postfix) with ESMTP id 112D345DF41 for ; Mon, 16 May 2011 17:08:22 +0900 (JST) Received: from s3.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id 03FD41DB803C for ; Mon, 16 May 2011 17:08:22 +0900 (JST) Received: from m105.s.css.fujitsu.com (m105.s.css.fujitsu.com [10.240.81.145]) by s3.gw.fujitsu.co.jp (Postfix) with ESMTP id C0955E08002 for ; Mon, 16 May 2011 17:08:21 +0900 (JST) Date: Mon, 16 May 2011 17:01:39 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH 1/3] vmscan,memcg: memcg aware swap token Message-Id: <20110516170139.332fe31d.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <4DCD189D.2000207@jp.fujitsu.com> References: <4DCD1824.1060801@jp.fujitsu.com> <4DCD189D.2000207@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: KOSAKI Motohiro Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, minchan.kim@gmail.com, riel@redhat.com On Fri, 13 May 2011 20:40:13 +0900 KOSAKI Motohiro wrote: > Currently, memcg reclaim can disable swap token even if the swap token > mm doesn't belong in its memory cgroup. It's slightly risky. If an > admin creates very small mem-cgroup and silly guy runs contentious heavy > memory pressure workload, every tasks are going to lose swap token and > then system may become unresponsive. That's bad. > > This patch adds 'memcg' parameter into disable_swap_token(). and if > the parameter doesn't match swap token, VM doesn't disable it. > > Signed-off-by: KOSAKI Motohiro Thank you Reviewed-by: KAMEZAWA Hiroyuki -- 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