linux-kernel - Re: [PATCH 3/4] mm: move lazy free pages to inactive list

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Date:	Mon, 30 Mar 2015 14:20:10 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Minchan Kim <minchan@...nel.org>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Michal Hocko <mhocko@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>,
	Mel Gorman <mgorman@...e.de>, Rik van Riel <riel@...hat.com>,
	Shaohua Li <shli@...nel.org>, Yalin.Wang@...ymobile.com
Subject: Re: [PATCH 3/4] mm: move lazy free pages to inactive list

On Mon, 30 Mar 2015 14:35:02 +0900 Minchan Kim <minchan@...nel.org> wrote:

> --- a/mm/swap.c
> +++ b/mm/swap.c
> @@ -866,6 +866,13 @@ void deactivate_file_page(struct page *page)
>  	}
>  }
>  
> +/**
> + * deactivate_page - deactivate a page
> + * @page: page to deactivate
> + *
> + * This function moves @page to inactive list if @page was on active list and
> + * was not unevictable page to accelerate to reclaim @page.
> + */
>  void deactivate_page(struct page *page)
>  {
>  	if (PageLRU(page) && PageActive(page) && !PageUnevictable(page)) {

Thanks.

deactivate_page() doesn't look at or alter PageReferenced().  Should it?
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