linux-kernel - Re: [PATCH 8/9] mm/rmap: use rmap_walk() in page

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Message-ID: <1386015000-duz3i1h4-mutt-n-horiguchi@ah.jp.nec.com>
Date:	Mon, 02 Dec 2013 15:10:00 -0500
From:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To:	Joonsoo Kim <iamjoonsoo.kim@....com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>, Hugh Dickins <hughd@...gle.com>,
	Rik van Riel <riel@...hat.com>,
	Ingo Molnar <mingo@...nel.org>,
	Hillf Danton <dhillf@...il.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Joonsoo Kim <js1304@...il.com>
Subject: Re: [PATCH 8/9] mm/rmap: use rmap_walk() in page_referenced()

On Thu, Nov 28, 2013 at 04:48:45PM +0900, Joonsoo Kim wrote:
> Now, we have an infrastructure in rmap_walk() to handle difference
> from variants of rmap traversing functions.
> 
> So, just use it in page_referenced().
> 
> In this patch, I change following things.
> 
> 1. remove some variants of rmap traversing functions.
> 	cf> page_referenced_ksm, page_referenced_anon,
> 	page_referenced_file
> 2. introduce new struct page_referenced_arg and pass it to
> page_referenced_one(), main function of rmap_walk, in order to
> count reference, to store vm_flags and to check finish condition.
> 3. mechanical change to use rmap_walk() in page_referenced().
> 
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@....com>

Reviewed-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
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