linux-kernel - Re: [PATCH 0/5] memcg: towards I/O aware memcg v7.

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Message-Id: <20100909134459.361a0f61.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Thu, 9 Sep 2010 13:44:59 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	gthelen@...gle.com, Munehiro Ikeda <m-ikeda@...jp.nec.com>,
	menage@...gle.com, "lizf@...fujitsu.com" <lizf@...fujitsu.com>
Subject: Re: [PATCH 0/5] memcg: towards I/O aware memcg v7.

On Wed, 1 Sep 2010 15:39:51 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> wrote:

> 
> Major changes from v6 is
>  a) added documentation about CSS ID.
>  b) fixed typos and bugs.
>  c) refleshed some comments
> 
> based on mmotm-2010-08-27
> 
> Patch brief view:
>  1. changes css ID allocation in kernel/cgroup.c
>  2. use ID-array in memcg.
>  3. record ID to page_cgroup rather than pointer.
>  4. make update_file_mapped to be RCU aware routine instead of spinlock.
>  5. make update_file_mapped as general-purpose function.
> 
> 

It seems that it will be better to re-order this series into

 A-part: lockless update of stats.
 B-part: ID managenet.

2 series. (to get ack.) Thank you for all helps.
BTW, what's the problem with ID patches ?

Thanks,
-Kame

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