linux-kernel - Re: [RFC][PATCH 1/4] cgroup: support per cgroup subsys state ID (CSS ID)

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Message-ID: <8c182b969c7f3c9c583b879709767ed7.squirrel@webmail-b.css.fujitsu.com>
Date:	Sat, 10 Jan 2009 09:49:28 +0900 (JST)
From:	"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>
To:	"Paul Menage" <menage@...gle.com>
Cc:	"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>,
	"lizf@...fujitsu.com" <lizf@...fujitsu.com>
Subject: Re: [RFC][PATCH 1/4] cgroup: support per cgroup subsys state ID
 (CSS  ID)

Paul Menage さんは書きました：
> On Thu, Jan 8, 2009 at 1:28 AM, KAMEZAWA Hiroyuki
> <kamezawa.hiroyu@...fujitsu.com> wrote:
>> + *
>> + * Looking up and scanning function should be called under
>> rcu_read_lock().
>> + * Taking cgroup_mutex()/hierarchy_mutex() is not necessary for all
>> calls.
>
> Can you clarify here - do you mean "not necessary for any calls"
> (calls to what?) or "not necessary for some calls"? I presume the
> former.
>
Ah, sorry bad text.

not necessary for any calls related to css_id.

-Kame


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