From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: balbir@linux.vnet.ibm.com, Paul Menage <menage@google.com>,
Pavel Emelianov <xemul@openvz.org>,
Hugh Dickins <hugh@veritas.com>,
Sudhir Kumar <skumar@linux.vnet.ibm.com>,
YAMAMOTO Takashi <yamamoto@valinux.co.jp>,
lizf@cn.fujitsu.com, linux-kernel@vger.kernel.org,
taka@valinux.co.jp, linux-mm@kvack.org,
David Rientjes <rientjes@google.com>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [-mm] Add an owner to the mm_struct (v2)
Date: Fri, 28 Mar 2008 20:21:44 +0900 [thread overview]
Message-ID: <20080328202144.5c627380.kamezawa.hiroyu@jp.fujitsu.com> (raw)
In-Reply-To: <20080328201528.55b22fba.kamezawa.hiroyu@jp.fujitsu.com>
On Fri, 28 Mar 2008 20:15:28 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> Now,
> - css_get(memcgrp) is called at mm_struct initialization.
> - css_put(memcgrp) is called at mm_struct freeing.
>
> How about
> - css_get(memcgrp) is called at task_struct initialization.
> - css_put(memcgrp) is called at task_struct freeing.
>
> Because
> 1. we find mem_cgroup by mm->owner, after this.
> 2. generic group interface have exit() and clone() callback interface.
>
> mem_cgroup will not be freed until rmdir(), anyway.
>
Ignore above. As Paul pointed out, reference count from task is not necessary.
Thanks,
-Kame
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next prev parent reply other threads:[~2008-03-28 11:21 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-28 8:23 Balbir Singh
2008-03-28 9:41 ` Jiri Slaby
2008-03-28 9:43 ` Jiri Slaby
2008-03-28 10:11 ` Balbir Singh
2008-03-28 10:48 ` KAMEZAWA Hiroyuki
2008-03-28 10:51 ` Balbir Singh
2008-03-28 11:06 ` KAMEZAWA Hiroyuki
2008-03-28 10:55 ` KAMEZAWA Hiroyuki
2008-03-28 10:52 ` Balbir Singh
2008-03-28 11:04 ` Paul Menage
2008-03-28 11:15 ` KAMEZAWA Hiroyuki
2008-03-28 11:21 ` KAMEZAWA Hiroyuki [this message]
2008-03-28 11:01 ` Paul Menage
2008-03-28 12:36 ` Balbir Singh
2008-03-28 12:54 ` Balbir Singh
2008-03-28 14:06 ` Paul Menage
2008-03-28 14:05 ` Paul Menage
2008-03-28 14:52 ` Balbir Singh
2008-03-28 15:38 ` Paul Menage
2008-03-28 18:10 ` Balbir Singh
2008-03-28 18:52 ` Paul Menage
2008-03-29 1:02 ` Balbir Singh
2008-03-29 5:46 ` Balbir Singh
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