linux-kernel - Re: [PATCH v3 01/10] compaction: trivial clean up acct

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Message-ID: <20110613144853.GA1414@barrios-desktop>
Date:	Mon, 13 Jun 2011 23:48:53 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Michal Hocko <mhocko@...e.cz>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Mel Gorman <mgorman@...e.de>,
	Andrea Arcangeli <aarcange@...hat.com>,
	Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH v3 01/10] compaction: trivial clean up acct_isolated

On Sun, Jun 12, 2011 at 04:24:05PM +0200, Michal Hocko wrote:
> On Tue 07-06-11 23:38:14, Minchan Kim wrote:
> > acct_isolated of compaction uses page_lru_base_type which returns only
> > base type of LRU list so it never returns LRU_ACTIVE_ANON or LRU_ACTIVE_FILE.
> > In addtion, cc->nr_[anon|file] is used in only acct_isolated so it doesn't have
> > fields in conpact_control.
> > This patch removes fields from compact_control and makes clear function of
> > acct_issolated which counts the number of anon|file pages isolated.
> > 
> > Cc: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> > Cc: Mel Gorman <mgorman@...e.de>
> > Cc: Andrea Arcangeli <aarcange@...hat.com>
> > Acked-by: Rik van Riel <riel@...hat.com>
> > Acked-by: Johannes Weiner <hannes@...xchg.org>
> > Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
> > Signed-off-by: Minchan Kim <minchan.kim@...il.com>
> 
> Sorry for the late reply. I have looked at the previous posting but

No problem. Thanks for the review, Michal.

> didn't have time to comment on it.
> 
> Yes, stack usage reduction makes sense and the function also looks more
> compact.
> 
> Reviewed-by: Michal Hocko <mhocko@...e.cz>
> 

-- 
Kind regards,
Minchan Kim
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