linux-kernel - Re: error at compaction (Re: mmotm 2010-04-15-14-42 uploaded

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Message-ID: <20100420095855.GE19264@csn.ul.ie>
Date:	Tue, 20 Apr 2010 10:58:55 +0100
From:	Mel Gorman <mel@....ul.ie>
To:	Minchan Kim <minchan.kim@...il.com>
Cc:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"kosaki.motohiro@...fujitsu.com" <kosaki.motohiro@...fujitsu.com>
Subject: Re: error at compaction (Re: mmotm 2010-04-15-14-42 uploaded

On Tue, Apr 20, 2010 at 06:50:23PM +0900, Minchan Kim wrote:
> On Tue, Apr 20, 2010 at 5:44 PM, Mel Gorman <mel@....ul.ie> wrote:
> > On Tue, Apr 20, 2010 at 05:32:13PM +0900, Minchan Kim wrote:
> >>
> >> Yes. Then, Let's add comment like split_page. :)
> >>  /*
> >>  * Note: this is probably too low level an operation for use in drivers.
> >>  * Please consult with lkml before using this in your driver.
> >>  */
> >>
> >
> > I can, but the comment that was there says it's like split_page except the
> > page is already free. This also covers not using it in a driver.
> 
> I see. In addition, you already mentioned "As this is only being used
> for migration".
> I missed one.
> I don't have any against one.
> Will you repost v2 which move split_free_pages out of compaction.c?

I don't understand your suggestion. split_free_pages is already out of
compaction.c.

> Anyway, feel free to add my reviewed-by sign.
> Thanks, Mel.
> 
> Reviewed-by: Minchan Kim <minchan.kim@...il.com>
> 

Thanks

-- 
Mel Gorman
Part-time Phd Student                          Linux Technology Center
University of Limerick                         IBM Dublin Software Lab
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