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Date: Mon, 13 Feb 2012 15:37:25 -0600
Message-ID: <CAOCHtYh8Gx+79_a-UtqX67gGP0WsMA26Y4MXbgi99AS7tqhH2Q@mail.gmail.com>
Subject: Re: [Linaro-mm-sig] [PATCHv21 12/16] mm: trigger page reclaim in
 alloc_contig_range() to stabilise watermarks
From: Robert Nelson <robertcnelson@gmail.com>
To: Michal Nazarewicz <mina86@mina86.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>, linux-kernel@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org,
        linux-mm@kvack.org, linaro-mm-sig@lists.linaro.org,
        Ohad Ben-Cohen <ohad@wizery.com>,
        Daniel Walker <dwalker@codeaurora.org>,
        Russell King <linux@arm.linux.org.uk>, Arnd Bergmann <arnd@arndb.de>,
        Jonathan Corbet <corbet@lwn.net>, Mel Gorman <mel@csn.ul.ie>,
        Dave Hansen <dave@linux.vnet.ibm.com>,
        Jesse Barker <jesse.barker@linaro.org>,
        Kyungmin Park <kyungmin.park@samsung.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Rob Clark <rob.clark@linaro.org>,
        KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
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2012/2/13 Michal Nazarewicz <mina86@mina86.com>:
>>> On Fri, Feb 10, 2012 at 11:32 AM, Marek Szyprowski
>>>>
>>>> +static int __reclaim_pages(struct zone *zone, gfp_t gfp_mask, int
>>>> count)
>>>>
>>>> +{
>>>> + ? ? ? enum zone_type high_zoneidx = gfp_zone(gfp_mask);
>>>> + ? ? ? struct zonelist *zonelist = node_zonelist(0, gfp_mask);
>>>> + ? ? ? int did_some_progress = 0;
>>>> + ? ? ? int order = 1;
>>>> + ? ? ? unsigned long watermark;
>>>> +
>>>> + ? ? ? /*
>>>> + ? ? ? ?* Increase level of watermarks to force kswapd do his job
>>>> + ? ? ? ?* to stabilise at new watermark level.
>>>> + ? ? ? ?*/
>>>> + ? ? ? __modify_min_cma_pages(zone, count);
>
>
>> 2012/2/13 Michal Nazarewicz <mina86@mina86.com>:
>>
>>> This should read __update_cma_wmark_pages(). ?Sorry for the incorrect
>>> patch.
>
>
> On Mon, 13 Feb 2012 13:15:13 -0800, Robert Nelson <robertcnelson@gmail.com>
> wrote:
>>
>> Thanks Michal, that fixed it..
>
>
> You are most welcome.
>
>
>> cma-v21 with Rob Clark's omapdrm works great on the Beagle xM..
>
>
> Can we take that as:
>
> Tested-by: Robert Nelson <robertcnelson@gmail.com>
>
> ? ;)

Oh, of course:

Tested-by: Robert Nelson <robertcnelson@gmail.com>

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/
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