From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH v3][0/6] memcg: prevent -ENOMEM in pre_destroy()
Date: Thu, 21 Jun 2012 13:20:43 -0700
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To: KAMEZAWA Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
Cc: "linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org" <linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org>, "cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>, Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>, Frederic Weisbecker <fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Han Ying <yinghan-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>, Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>, "Aneesh Kumar K.V" <aneesh.kumar-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>, Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>, Hiroyuki Kamezawa <kamezawa.hiroyuki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, Linux Kernel <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>

On Fri, May 11, 2012 at 06:41:36PM +0900, KAMEZAWA Hiroyuki wrote:
> Hi, here is v3 based on memcg-devel tree.
> git://github.com/mstsxfx/memcg-devel.git
> 
> This patch series is for avoiding -ENOMEM at calling pre_destroy() 
> which is called at rmdir(). After this patch, charges will be moved
> to root (if use_hierarchy==0) or parent (if use_hierarchy==1), and
> we'll not see -ENOMEM in rmdir() of cgroup.
> 
> v2 included some other patches than ones for handling -ENOMEM problem,
> but I divided it. I'd like to post others in different series, later.
> No logical changes in general, maybe v3 is cleaner than v2.
> 
> 0001 ....fix error code in memcg-hugetlb
> 0002 ....add res_counter_uncharge_until
> 0003 ....use res_counter_uncharge_until in memcg
> 0004 ....move charges to root is use_hierarchy==0
> 0005 ....cleanup for mem_cgroup_move_account()
> 0006 ....remove warning of res_counter_uncharge_nofail (from Costa's slub accounting series).

KAME, how is this progressing?  Is it stuck on anything?

Thank you very much.

-- 
tejun