linux-kernel - Re: [PATCH][-mm] memcg : memory cgroup cpu hotplug support update.

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Message-Id: <20100916161727.04a1f905.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Thu, 16 Sep 2010 16:17:27 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	balbir@...ux.vnet.ibm.com,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>
Subject: Re: [PATCH][-mm] memcg : memory cgroup cpu hotplug support update.

On Thu, 16 Sep 2010 15:22:04 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> wrote:
 
> This naming is from mem_cgroup_walk_tree(). Now we have
> 
>   mem_cgroup_walk_tree();
>   mem_cgroup_walk_all();
> 
> Rename both ? But it should be in separated patch.
> 

Considering a bit ...but..

#define for_each_mem_cgroup(mem) \
	for (mem = mem_cgroup_get_first(); \
	     mem; \
	     mem = mem_cgroup_get_next(mem);) \

seems to need some helper functions. I'll consider about this clean up
but it requires some amount of patch because css_get()/css_put()/rcu...etc..
are problematic.

Thanks,
-Kame

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