From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx154.postini.com [74.125.245.154]) by kanga.kvack.org (Postfix) with SMTP id 070D26B005C for ; Thu, 31 May 2012 02:56:15 -0400 (EDT) Received: by pbbrp2 with SMTP id rp2so1256060pbb.14 for ; Wed, 30 May 2012 23:56:15 -0700 (PDT) Date: Wed, 30 May 2012 23:56:13 -0700 (PDT) From: David Rientjes Subject: Re: [PATCH] meminfo: show /proc/meminfo base on container's memcg In-Reply-To: <4FC711A5.4090003@gmail.com> Message-ID: References: <1338260214-21919-1-git-send-email-gaofeng@cn.fujitsu.com> <4FC6B68C.2070703@jp.fujitsu.com> <4FC6BC3E.5010807@jp.fujitsu.com> <4FC6C111.2060108@jp.fujitsu.com> <4FC6D881.4090706@jp.fujitsu.com> <4FC70355.70805@jp.fujitsu.com> <4FC70E5E.1010003@gmail.com> <4FC711A5.4090003@gmail.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: KOSAKI Motohiro Cc: Kamezawa Hiroyuki , Gao feng , hannes@cmpxchg.org, mhocko@suse.cz, bsingharora@gmail.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, containers@lists.linux-foundation.org On Thu, 31 May 2012, KOSAKI Motohiro wrote: > > This is tangent to the discussion, we need to revisit why an application > > other than a daemon managing a set of memcgs would ever need to know the > > information in /proc/meminfo. No use-case was ever presented in the > > changelog and its not clear how this is at all relevant. So before > > changing the kernel, please describe how this actually matters in a real- > > world scenario. > > Huh? Don't you know a meanings of a namespace ISOLATION? isolation mean, > isolated container shouldn't be able to access global information. If you > want to lean container/namespace concept, tasting openvz or solaris container > is a good start. > As I said, LXC and namespace isolation is a tangent to the discussion of faking the /proc/meminfo for the memcg context of a thread. > But anyway, I dislike current implementaion. So, I NAK this patch too. > I'm glad you reached that conclusion, but I think you did so for a much different (although unspecified) reason. Thanks. -- 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