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From: Ingo Molnar <mingo@elte.hu>
To: Li Zefan <lizf@cn.fujitsu.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Max Krasnyansky <maxk@qualcomm.com>,
	Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>,
	Paul Menage <menage@google.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] cpuset: fix regression when failed to generate sched domains
Date: Tue, 18 Nov 2008 08:45:43 +0100	[thread overview]
Message-ID: <20081118074543.GB17838@elte.hu> (raw)
In-Reply-To: <49225A5B.6080103@cn.fujitsu.com>


* Li Zefan <lizf@cn.fujitsu.com> wrote:

> When cpuset failed to generate sched domains due to kmalloc()
> failure, the scheduler should fallback to the single partition
> 'fallback_doms' and rebuild sched domains, but now it only
> destroys but not rebuilds sched domains.
> 
> The regression is introduced by:
> 
> commit dfb512ec4834116124da61d6c1ee10fd0aa32bd6
> Author: Max Krasnyansky <maxk@qualcomm.com>
> Date:   Fri Aug 29 13:11:41 2008 -0700
> 
>     sched: arch_reinit_sched_domains() must destroy domains to force rebuild
> 
> After the above commit, partition_sched_domains(0, NULL, NULL) will
> only destroy sched domains and partition_sched_domains(1, NULL, NULL)
> will create the default sched domain.
> 
> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>

applied to tip/sched/urgent, thanks!

> Should I also CC stable for 2.6.27.xx ?

i've added a Cc: stable to the commit - that will trigger a -stable 
backport.

	Ingo

  reply	other threads:[~2008-11-18  7:46 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-18  6:02 Li Zefan
2008-11-18  7:45 ` Ingo Molnar [this message]
2008-11-19  1:24 ` Max Krasnyansky

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