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

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Date:	Fri, 11 May 2012 18:41:36 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	"linux-mm@...ck.org" <linux-mm@...ck.org>
CC:	"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>,
	Tejun Heo <tj@...nel.org>,
	"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: [PATCH v3][0/6] memcg: prevent -ENOMEM in pre_destroy()

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).

Regards,
-Kame

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