From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail203.messagelabs.com (mail203.messagelabs.com [216.82.254.243]) by kanga.kvack.org (Postfix) with SMTP id 904706B003D for ; Wed, 4 Feb 2009 01:49:44 -0500 (EST) Message-ID: <49893A5A.7000506@cn.fujitsu.com> Date: Wed, 04 Feb 2009 14:48:58 +0800 From: Li Zefan MIME-Version: 1.0 Subject: Re: [-mm patch] Show memcg information during OOM (v3) References: <20090203172135.GF918@balbir.in.ibm.com> <4988E727.8030807@cn.fujitsu.com> <20090204033750.GB4456@balbir.in.ibm.com> <20090204142455.83c38ad6.kamezawa.hiroyu@jp.fujitsu.com> <20090204064249.GC4456@balbir.in.ibm.com> In-Reply-To: <20090204064249.GC4456@balbir.in.ibm.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: balbir@linux.vnet.ibm.com Cc: KAMEZAWA Hiroyuki , Andrew Morton , "linux-kernel@vger.kernel.org" , "nishimura@mxp.nes.nec.co.jp" , "linux-mm@kvack.org" List-ID: >> BTW, I wonder can't we show the path of mount point ? >> /group_A/01 is /cgroup/group_A/01 and /group_A/ is /cgroup/group_A/ on this system. >> Very difficult ? >> > > No, it is not very difficult, we just need to append the mount point. > The reason for not doing it is consistency with output of > /proc//cgroup and other places where cgroup_path prints the path > relative to the mount point. Since we are talking about memory, the > administrator should know where it is mounted. Do you strongly feel > the need to add mount point? My concern is consistency with other > cgroup output (look at /proc/sched_debug) for example. > Another reason to not do so is, we can mount a specific hierarchy to multiple mount points. # mount -t cgroup -o memory /mnt # mount -t cgroup -o memory /cgroup # mkdir /mnt/0 Now, /mnt/0 is the same with /cgroup/0. -- 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