linux-kernel - Re: [PATCH] mm: setup pageblock_order before it's used by sparse

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Message-ID: <500530E3.3020404@huawei.com>
Date:	Tue, 17 Jul 2012 17:31:15 +0800
From:	Jiang Liu <jiang.liu@...wei.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:	Yinghai Lu <yinghai@...nel.org>, Mel Gorman <mgorman@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Tony Luck <tony.luck@...el.com>,
	Xishi Qiu <qiuxishi@...wei.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	David Rientjes <rientjes@...gle.com>,
	Minchan Kim <minchan@...nel.org>,
	Keping Chen <chenkeping@...wei.com>, <linux-mm@...ck.org>,
	<stable@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Jiang Liu <liuj97@...il.com>
Subject: Re: [PATCH] mm: setup pageblock_order before it's used by sparse

Hi Ben,
	Any update about this topic?
	Thanks!
	Gerry

On 2012-7-6 9:24, Benjamin Herrenschmidt wrote:
> On Thu, 2012-07-05 at 18:00 -0700, Yinghai Lu wrote:
>> cma, dma_continugous_reserve is referring pageblock_order very early
>> too.
>> just after init_memory_mapping() for x86's setup_arch.
>>
>> so set pageblock_order early looks like my -v2 patch is right way.
>>
>> current question: need to powerpc guys to check who to set that early.
> 
> I missed the beginning of that discussion, I'll try to dig a bit,
> might take me til next week though as I'm about to be off for
> the week-end.
> 
> Cheers,
> Ben.
> 
> 
> 
> .
> 


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