linux-kernel - Re: [PATCH 3/3] mm, mem-hotplug: update pcp->stat

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Message-ID: <BANLkTi=fEejkrPdX27bFi1x+dHpOSGxQaQ@mail.gmail.com>
Date:	Tue, 12 Apr 2011 18:24:08 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	linux-mm <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Yasunori Goto <y-goto@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Mel Gorman <mel@....ul.ie>, Christoph Lameter <cl@...ux.com>
Subject: Re: [PATCH 3/3] mm, mem-hotplug: update pcp->stat_threshold when
 memory hotplug occur

Hi, KOSAKI

On Mon, Apr 11, 2011 at 5:01 PM, KOSAKI Motohiro
<kosaki.motohiro@...fujitsu.com> wrote:
> Currently, cpu hotplug updates pcp->stat_threashold, but memory
> hotplug doesn't. there is no reason.
>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> Acked-by: Mel Gorman <mel@....ul.ie>
> Acked-by: Christoph Lameter <cl@...ux.com>

I can think it makes sense so I don't oppose the patch merging.
But as you know I am very keen on the description.

What is the problem if hotplug doesn't do it?
I means the patch solves what's problem?

Please write down fully for better description.
Thanks.

-- 
Kind regards,
Minchan Kim
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