linux-kernel - Re: [PATCH v2 4/5] page_alloc: Make movablecore

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Message-ID: <50C545D3.8040102@huawei.com>
Date:	Mon, 10 Dec 2012 10:15:47 +0800
From:	Jiang Liu <jiang.liu@...wei.com>
To:	Tang Chen <tangchen@...fujitsu.com>
CC:	Jiang Liu <liuj97@...il.com>, <hpa@...or.com>,
	<akpm@...ux-foundation.org>, <rob@...dley.net>,
	<isimatu.yasuaki@...fujitsu.com>, <laijs@...fujitsu.com>,
	<wency@...fujitsu.com>, <linfeng@...fujitsu.com>,
	<yinghai@...nel.org>, <kosaki.motohiro@...fujitsu.com>,
	<minchan.kim@...il.com>, <mgorman@...e.de>, <rientjes@...gle.com>,
	<rusty@...tcorp.com.au>, <linux-kernel@...r.kernel.org>,
	<linux-mm@...ck.org>, <linux-doc@...r.kernel.org>
Subject: Re: [PATCH v2 4/5] page_alloc: Make movablecore_map has higher priority

On 2012-12-9 16:10, Tang Chen wrote:
> Hi Liu, Wu,
> 
> On 12/06/2012 10:26 AM, Jiang Liu wrote:
>> On 2012-12-6 9:26, Tang Chen wrote:
>>> On 12/05/2012 11:43 PM, Jiang Liu wrote:
>>>> If we make "movablecore_map" take precedence over "movablecore/kernelcore",
>>>> the logic could be simplified. I think it's not so attractive to support
>>>> both "movablecore_map" and "movablecore/kernelcore" at the same time.
> 
> Thanks for the advice of removing movablecore/kernelcore. But since we
> didn't plan to do this in the beginning, and movablecore/kernelcore are
> more user friendly, I think for now, I'll handle DMA and low memory address problems as you mentioned, and just keep movablecore/kernelcore
> in the next version. :)
Hi Tang,
	I mean we could ignore kernelcore/movablecore if user specifies
both movablecore_map and kernelcore/movablecore in the kernel command
line. I'm not suggesting to get rid of kernelcore/movablecore:)
	Thanks!

> 
> And about the SRAT, I think it is necessary to many users. I think we
> should provide both interfaces. I may give a try in the next version.
> 
> Thanks. :)
> 
> 
> .
> 


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