linux-kernel - Re: [PATCH 1/3] clean up setup_per_zone_pages

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Date:	Wed, 20 May 2009 18:58:03 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Mel Gorman <mel@....ul.ie>
Cc:	Minchan Kim <minchan.kim@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>
Subject: Re: [PATCH 1/3] clean up setup_per_zone_pages_min

Hi, Mel. 

On Wed, 20 May 2009 09:54:16 +0100
Mel Gorman <mel@....ul.ie> wrote:

> On Wed, May 20, 2009 at 04:18:53PM +0900, Minchan Kim wrote:
> > 
> > Mel changed zone->pages_[high/low/min] with zone->watermark array.
> > So, setup_per_zone_pages_min also have to be changed.
> > 
> 
> Just to be clear, this is a function renaming to match the new zone
> field name, not something I missed. As the function changes min, low and
> max, a better name might have been setup_per_zone_watermarks but whether

At first, I thouht, too. But It's handle of min_free_kbytes.
Documentation said, it's to compute a watermark[WMARK_MIN]. 
I think many people already used that knob to contorl pages_min to keep the 
low pages. 

So, I determined function name is proper now. 
If setup_per_zone_watermark is better than it, we also have to change with 
documentation. 

> you go with that name or not, this is better than what is there so;
> 
> Acked-by: Mel Gorman <mel@....ul.ie>


-- 
Kinds Regards
Minchan Kim
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