linux-kernel - Re: [PATCH] cpuset: Make rebuild_sched

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Message-ID: <6599ad830807150914h152e3716n914dfa5e28288d28@mail.gmail.com>
Date:	Tue, 15 Jul 2008 09:14:26 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	"Max Krasnyansky" <maxk@...lcomm.com>
Cc:	mingo@...e.hu, pj@....com, linux-kernel@...r.kernel.org,
	a.p.zijlstra@...llo.nl
Subject: Re: [PATCH] cpuset: Make rebuild_sched_domains() usable from any context

On Tue, Jul 15, 2008 at 4:44 AM, Max Krasnyansky <maxk@...lcomm.com> wrote:
> From: Max Krasnyanskiy <maxk@...lcomm.com>
>
> I do not really like the current solution of dropping cgroup lock
> but it shows what I have in mind in general.

I think that dropping the cgroup lock will open up races for cpusets.
The idea of a separate workqueue/thread to do the sched domain
rebuilding is simplest.

Paul
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