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From: Paul Menage <menage@google.com>
To: Li Zefan <lizf@cn.fujitsu.com>
Cc: kamezawa.hiroyu@jp.fujitsu.com, balbir@linux.vnet.ibm.com,
	containers@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org, akpm@linux-foundation.org
Subject: Re: [RFC][PATCH 1/3] CGroups: Add a per-subsystem hierarchy_mutex
Date: Thu, 11 Dec 2008 09:07:18 -0800	[thread overview]
Message-ID: <6599ad830812110907r4c1bbc0dwf921609bfc117ba4@mail.gmail.com> (raw)
In-Reply-To: <4940836A.9010502@cn.fujitsu.com>

On Wed, Dec 10, 2008 at 7:05 PM, Li Zefan <lizf@cn.fujitsu.com> wrote:
>
> But this function is used in cgroup.c internally, and always called
> with cgroup_lock held, so it's OK to use for_each_subsys().

This is true, but it doesn't hurt to be future-proof and not require
cgroup_mutex to be held.

Paul

  reply	other threads:[~2008-12-11 17:07 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-10 23:36 [RFC][PATCH 0/3] CGroups: CGroups: Hierarchy locking/refcount changes menage
2008-12-10 23:36 ` [RFC][PATCH 1/3] CGroups: Add a per-subsystem hierarchy_mutex menage
2008-12-11  0:37   ` KAMEZAWA Hiroyuki
2008-12-11  0:44     ` Paul Menage
2008-12-11  6:30     ` Balbir Singh
2008-12-11  3:05   ` Li Zefan
2008-12-11 17:07     ` Paul Menage [this message]
2008-12-11  6:29   ` Balbir Singh
2008-12-11 17:09     ` Paul Menage
2008-12-10 23:36 ` [RFC][PATCH 2/3] CGroups: Use hierarchy_mutex in memory controller menage
2008-12-11  0:49   ` KAMEZAWA Hiroyuki
2008-12-11  0:52     ` Paul Menage
2008-12-11  1:05       ` KAMEZAWA Hiroyuki
2008-12-11  6:33         ` Balbir Singh
2008-12-11  6:47           ` Li Zefan
2008-12-11  6:53           ` KAMEZAWA Hiroyuki
2008-12-11 17:05             ` Paul Menage
2008-12-12  1:12               ` KAMEZAWA Hiroyuki
2008-12-10 23:36 ` [RFC][PATCH 3/3] CGroups: Add css_tryget() menage
2008-12-11  0:52   ` KAMEZAWA Hiroyuki
2008-12-11  7:02     ` [RFC][PATCH]example: use css_tryget() in memcg " KAMEZAWA Hiroyuki
2008-12-11  5:15   ` KAMEZAWA Hiroyuki
2008-12-11  7:28     ` Paul Menage
2008-12-11  7:29       ` KAMEZAWA Hiroyuki

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