linux-kernel - Re: [RFC] memory hotremove patch take 2 [03/10] (drain all pages)

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Message-Id: <20070511095445.6f357d29.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Fri, 11 May 2007 09:54:45 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	Christoph Lameter <clameter@....com>
Cc:	y-goto@...fujitsu.com, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, akpm@...l.org, mel@....ul.ie
Subject: Re: [RFC] memory hotremove patch take 2 [03/10] (drain all pages)

On Thu, 10 May 2007 11:07:08 -0700 (PDT)
Christoph Lameter <clameter@....com> wrote:

> On Wed, 9 May 2007, Yasunori Goto wrote:
> 
> > This patch add function drain_all_pages(void) to drain all 
> > pages on per-cpu-freelist.
> > Page isolation will catch them in free_one_page.
> 
> This is only draining the pcps of the local processor. I would think 
> that you need to drain all other processors pcps of this zone as well. And 
> there is no need to drain this processors pcps of other zones.
> 

As Mel-san pointed, -mm has drain_all_local_pages(). We'll use it.

Thanks,
-Kame

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