From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx148.postini.com [74.125.245.148]) by kanga.kvack.org (Postfix) with SMTP id DCC776B00EA for ; Wed, 16 May 2012 02:19:12 -0400 (EDT) Message-ID: <4FB34653.7060807@parallels.com> Date: Wed, 16 May 2012 10:16:51 +0400 From: Glauber Costa MIME-Version: 1.0 Subject: Re: [PATCH v2 11/29] cgroups: ability to stop res charge propagation on bounded ancestor References: <1336758272-24284-1-git-send-email-glommer@parallels.com> <1336758272-24284-12-git-send-email-glommer@parallels.com> <4FB1C6A1.1020602@jp.fujitsu.com> In-Reply-To: <4FB1C6A1.1020602@jp.fujitsu.com> Content-Type: text/plain; charset="ISO-2022-JP" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: KAMEZAWA Hiroyuki Cc: linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, Tejun Heo , Li Zefan , Greg Thelen , Suleiman Souhlal , Michal Hocko , Johannes Weiner , devel@openvz.org, Frederic Weisbecker , Li Zefan , Aditya Kali , Oleg Nesterov , Kay Sievers , Tim Hockin , Tejun Heo , Andrew Morton On 05/15/2012 06:59 AM, KAMEZAWA Hiroyuki wrote: > (2012/05/12 2:44), Glauber Costa wrote: > >> From: Frederic Weisbecker >> >> Moving a task from a cgroup to another may require to substract its >> resource charge from the old cgroup and add it to the new one. >> >> For this to happen, the uncharge/charge propagation can just stop when we >> reach the common ancestor for the two cgroups. Further the performance >> reasons, we also want to avoid to temporarily overload the common >> ancestors with a non-accurate resource counter usage if we charge first >> the new cgroup and uncharge the old one thereafter. This is going to be a >> requirement for the coming max number of task subsystem. >> >> To solve this, provide a pair of new API that can charge/uncharge a >> resource counter until we reach a given ancestor. >> >> Signed-off-by: Frederic Weisbecker >> Acked-by: Paul Menage >> Acked-by: Glauber Costa >> Cc: Li Zefan >> Cc: Johannes Weiner >> Cc: Aditya Kali >> Cc: Oleg Nesterov >> Cc: Kay Sievers >> Cc: Tim Hockin >> Cc: Tejun Heo >> Acked-by: Kirill A. Shutemov >> Signed-off-by: Andrew Morton > > > Where is this function called in this series ? > > Thanks, > -Kame > It is not... anymore! But I forgot the patch among the "pre-requisite" patches I had. Thanks, this can be dropped. -- 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