linux-kernel - Re: [Linaro-mm-sig] [PATCHv21 12/16] mm: trigger page reclaim in alloc_contig

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Message-ID: <op.v9mzhvxt3l0zgt@mpn-glaptop>
Date:	Mon, 13 Feb 2012 13:33:21 -0800
From:	"Michal Nazarewicz" <mina86@...a86.com>
To:	"Robert Nelson" <robertcnelson@...il.com>
Cc:	"Marek Szyprowski" <m.szyprowski@...sung.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-media@...r.kernel.org, linux-mm@...ck.org,
	linaro-mm-sig@...ts.linaro.org, "Ohad Ben-Cohen" <ohad@...ery.com>,
	"Daniel Walker" <dwalker@...eaurora.org>,
	"Russell King" <linux@....linux.org.uk>,
	"Arnd Bergmann" <arnd@...db.de>,
	"Jonathan Corbet" <corbet@....net>, "Mel Gorman" <mel@....ul.ie>,
	"Dave Hansen" <dave@...ux.vnet.ibm.com>,
	"Jesse Barker" <jesse.barker@...aro.org>,
	"Kyungmin Park" <kyungmin.park@...sung.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Rob Clark" <rob.clark@...aro.org>,
	"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [Linaro-mm-sig] [PATCHv21 12/16] mm: trigger page reclaim in
 alloc_contig_range() to stabilise watermarks

>> 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@...a86.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@...il.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@...il.com>

? ;)

-- 
Best regards,                                         _     _
.o. | Liege of Serenely Enlightened Majesty of      o' \,=./ `o
..o | Computer Science,  Michał “mina86” Nazarewicz    (o o)
ooo +----<email/xmpp: mpn@...gle.com>--------------ooO--(_)--Ooo--
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