linux-kernel - Re: [PATCH v3][0/6] memcg: prevent -ENOMEM in pre

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Message-ID: <20120621202043.GD4642@google.com>
Date:	Thu, 21 Jun 2012 13:20:43 -0700
From:	Tejun Heo <tj@...nel.org>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"cgroups@...r.kernel.org" <cgroups@...r.kernel.org>,
	Michal Hocko <mhocko@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Han Ying <yinghan@...gle.com>,
	Glauber Costa <glommer@...allels.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Hiroyuki Kamezawa <kamezawa.hiroyuki@...il.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3][0/6] memcg: prevent -ENOMEM in pre_destroy()

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
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