From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: [RFD][PATCH] memcg: Move Usage at Task Move In-Reply-To: Your message of "Wed, 11 Jun 2008 13:14:37 +0900" <20080611131437.76961fc3.kamezawa.hiroyu@jp.fujitsu.com> References: <20080611131437.76961fc3.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Message-Id: <20080612052033.ED6FD5A0D@siro.lan> Date: Thu, 12 Jun 2008 14:20:33 +0900 (JST) From: yamamoto@valinux.co.jp (YAMAMOTO Takashi) Sender: owner-linux-mm@kvack.org Return-Path: To: kamezawa.hiroyu@jp.fujitsu.com Cc: nishimura@mxp.nes.nec.co.jp, linux-mm@kvack.org, containers@lists.osdl.org, menage@google.com, balbir@linux.vnet.ibm.com, xemul@openvz.org List-ID: > > i think that you can redirect new charges in TASK to DEST > > so that usage_of_task(TASK) will not grow. > > > > Hmm, to do that, we have to handle complicated cgroup's attach ops. > > at this moving, memcg is pointed by > - TASK->cgroup->memcg(CURR) > after move > - TASK->another_cgroup->memcg(DEST) > > This move happens before cgroup is replaced by another_cgroup. currently cgroup_attach_task calls ->attach callbacks after assigning tsk->cgroups. are you talking about something else? YAMAMOTO Takashi -- 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/ . Don't email: email@kvack.org