linux-kernel - Re: make vmstat cpu-unplug safe

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Message-ID: <Pine.LNX.4.64.0805061047290.23336@schroedinger.engr.sgi.com>
Date:	Tue, 6 May 2008 10:48:10 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
cc:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: make vmstat cpu-unplug safe

On Tue, 6 May 2008, KOSAKI Motohiro wrote:
 
> btw: I think all_vm_event() author is Cristoph Lameter, right?

Welll I am the last one who reworked it from earlier incarnations.

> When access cpu_online_map, We should prevent that dynamically 
> change cpu_online_map by get_online_cpus().
> 
> Unfortunately, all_vm_events() doesn't it.

Acked-by: Christoph Lameter <clameter@....com>
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