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From: Li Zefan <lizf@cn.fujitsu.com>
To: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"balbir@linux.vnet.ibm.com" <balbir@linux.vnet.ibm.com>,
	"nishimura@mxp.nes.nec.co.jp" <nishimura@mxp.nes.nec.co.jp>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>
Subject: Re: [PATCH 2/4] cgroup:add css_is_populated
Date: Tue, 20 Jan 2009 09:51:13 +0800	[thread overview]
Message-ID: <49752E11.20209@cn.fujitsu.com> (raw)
In-Reply-To: <6599ad830901191741j4668f529s97ee6e896b0c011d@mail.gmail.com>

Paul Menage wrote:
> On Thu, Jan 15, 2009 at 7:00 PM, KAMEZAWA Hiroyuki
> <kamezawa.hiroyu@jp.fujitsu.com> wrote:
>> Li-san, If you don't like this, could you give me an idea for
>> "How to check cgroup is fully ready or not" ?
>>
>> BTW, why "we have a half filled direcotory - oh well" is allowed....
> 
> That's pretty much inherited from the original cpusets code. It
> probably should be cleaned up, but unless the system is totally hosed
> it seems pretty unlikely for creation of a few dentries to fail.
> 

Yes, but I can see a potential problem. If we have subsystem foo and bar,
and both of them have a control file with exactly the same name, like
foo.stat & bar.stat. Now we mount them with -o noprefix, and then one
of the stat file will fail to be created, without any warnning or notification
to the user.

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  reply	other threads:[~2009-01-20  1:51 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-15 10:21 [PATCH 0/4] cgroup/memcg : updates related to CSS KAMEZAWA Hiroyuki
2009-01-15 10:25 ` [PATCH 1/4] cgroup: add CSS ID KAMEZAWA Hiroyuki
2009-01-16  1:18   ` Li Zefan
2009-01-20  1:57   ` Paul Menage
2009-01-22  2:37   ` Daisuke Nishimura
2009-01-22  2:59     ` KAMEZAWA Hiroyuki
2009-01-15 10:27 ` [PATCH 2/4] cgroup:add css_is_populated KAMEZAWA Hiroyuki
2009-01-16  3:00   ` KAMEZAWA Hiroyuki
2009-01-20  1:41     ` Paul Menage
2009-01-20  1:51       ` Li Zefan [this message]
2009-01-20  1:55         ` Paul Menage
2009-01-20  1:39   ` Paul Menage
2009-01-20  2:02     ` KAMEZAWA Hiroyuki
2009-01-20  2:23       ` Paul Menage
2009-01-20  2:58         ` KAMEZAWA Hiroyuki
2009-01-20  5:43           ` [PATCH 1.5/4] cgroup: delay populate css id KAMEZAWA Hiroyuki
2009-01-21  9:36             ` Paul Menage
2009-01-21 10:34               ` KAMEZAWA Hiroyuki
2009-01-22  2:06                 ` KAMEZAWA Hiroyuki
2009-01-22  2:13                   ` Paul Menage
2009-01-15 10:29 ` [PATCH 3/4] memcg: hierarchical reclaim by CSS ID KAMEZAWA Hiroyuki
2009-01-16  1:29   ` Li Zefan
2009-01-16  1:38     ` KAMEZAWA Hiroyuki
2009-01-16  1:49       ` Li Zefan
2009-01-16  1:58         ` KAMEZAWA Hiroyuki
2009-01-16  2:22         ` KAMEZAWA Hiroyuki
2009-01-16  7:35           ` Li Zefan
2009-01-16  7:49             ` KAMEZAWA Hiroyuki
2009-01-15 10:32 ` [PATCH 4/4] memcg : read_statistics update to show total score KAMEZAWA Hiroyuki
2009-01-15 10:51 ` [PATCH 0/4] cgroup/memcg : updates related to CSS Balbir Singh
2009-01-15 10:58   ` KAMEZAWA Hiroyuki

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