linux-kernel - Re: [PATCH 2/5] stop_machine: reimplement using cpu

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Message-ID: <4BEA56BE.1000905@kernel.org>
Date:	Wed, 12 May 2010 09:20:30 +0200
From:	Tejun Heo <tj@...nel.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	mingo@...e.hu, peterz@...radead.org, linux-kernel@...r.kernel.org,
	paulmck@...ux.vnet.ibm.com, Oleg Nesterov <oleg@...hat.com>,
	Dimitri Sivanich <sivanich@....com>
Subject: Re: [PATCH 2/5] stop_machine: reimplement using cpu_stop

Hello,

On 05/11/2010 11:50 PM, Andrew Morton wrote:
> kernel/cpu.c: In function 'disable_nonboot_cpus':
> kernel/cpu.c:397: warning: 'error' may be used uninitialized in this function
> 
> Looks like this is a real bug if the cpumask happens to contain only a
> single CPU for some reason.

Indeed.  Hmm... I wonder why my builds didn't find it.

Acked-by: Tejun Heo <tj@...nel.org>

Thank you.

-- 
tejun
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