linux-kernel - Re: [PATCH 2/2] CFS CGroup: Report usage

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Message-ID: <471DA78F.4090600@linux.vnet.ibm.com>
Date:	Tue, 23 Oct 2007 13:19:35 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Paul Menage <menage@...gle.com>
CC:	vatsa@...ux.vnet.ibm.com, containers@...ts.linux-foundation.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] CFS CGroup: Report usage

Paul Menage wrote:
> On 10/22/07, Paul Menage <menage@...gle.com> wrote:
>> Using cgroup_mutex is certainly possible for now, although more
>> heavy-weight than I'd like long term. Using css_get isn't the right
>> approach, I think - we shouldn't be able to cause an rmdir to fail due
>> to a concurrent read.
>>

Well, most people who care about deletion will use the notify_on_release
callback and retry. I think we have a good mechanism in place for
deletion, so I would not worry about read delaying deletion.



-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL

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