Message-ID: <4FD9EAAC.1060100@gmail.com>
Date: Thu, 14 Jun 2012 09:44:12 -0400
From: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
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To: Wanpeng Li <liwp.linux@gmail.com>
CC: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
        KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
        Mel Gorman <mgorman@suse.de>, Minchan Kim <minchan@kernel.org>,
        Hugh Dickins <hughd@google.com>, linux-kernel@vger.kernel.org,
        trivial@kernel.org, Gavin Shan <shangw@linux.vnet.ibm.com>,
        kosaki.motohiro@gmail.com
Subject: Re: [PATCH] mm: complement page reclaim comment
References: <1339680158-26657-1-git-send-email-liwp.linux@gmail.com>
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(6/14/12 9:22 AM), Wanpeng Li wrote:
> From: Wanpeng Li<liwp@linux.vnet.ibm.com>
> 
> Signed-off-by: Wanpeng Li<liwp.linux@gmail.com>
> ---
>   mm/vmscan.c |    1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index ed823df..603c96f 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -3203,6 +3203,7 @@ int zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
>    * Reasons page might not be evictable:
>    * (1) page's mapping marked unevictable
>    * (2) page is part of an mlocked VMA
> + * (3) page mapped into SHM_LOCK'd shared memory regions

This is one of "marked unevictable".


>    *
>    */
>   int page_evictable(struct page *page, struct vm_area_struct *vma)

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