linux-kernel - Re: [PATCH v2] vmscan: prevent background aging of anon page in no swap system

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Date:	Fri, 3 Sep 2010 00:34:03 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Rik van Riel <riel@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Ying Han <yinghan@...gle.com>, linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Johannes Weiner <hannes@...xchg.org>
Subject: Re: [PATCH v2] vmscan: prevent background aging of anon page in no
 swap system

Will fix.
Thanks for the quick response. Rik.

On Fri, Sep 3, 2010 at 12:16 AM, Rik van Riel <riel@...hat.com> wrote:
> On 09/02/2010 11:12 AM, Minchan Kim wrote:
>
>> +       /*
>> +        * If we don't have enough swap space, anonymous page deactivation
>> +        * is pointless.
>> +        */
>> +       if (!nr_swap_pages)
>> +               return 0;
>
> It may be better to test !total_swap_pages and change the
> comment to:
>
>        /*
>         * If we don't have swap space, anonymous page deactivation
>         * is pointless.
>         */
>
> --
> All rights reversed
>



-- 
Kind regards,
Minchan Kim
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