linux-kernel - Re: [PATCH] x86/mm: memblock: switch to use NUMA_NO

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Date:	Wed, 8 Jan 2014 13:05:26 -0500
From:	Santosh Shilimkar <santosh.shilimkar@...com>
To:	Grygorii Strashko <grygorii.strashko@...com>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	Fengguang Wu <fengguang.wu@...el.com>, <x86@...nel.org>,
	<linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Tejun Heo <tj@...nel.org>, Yinghai Lu <yinghai@...nel.org>,
	David Rientjes <rientjes@...gle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH] x86/mm: memblock: switch to use NUMA_NO_NODE

On Wednesday 08 January 2014 12:27 PM, Grygorii Strashko wrote:
> Hi,
> 
> On 01/08/2014 06:23 PM, Grygorii Strashko wrote:
>> Update X86 code to use NUMA_NO_NODE instead of MAX_NUMNODES while
>> calling memblock APIs, because memblock API is changed to use NUMA_NO_NODE and
>> will produce warning during boot otherwise.
>>
>> See:
>>   https://lkml.org/lkml/2013/12/9/898
>>
> [...]
> 
> or, there are other 3 patches from Sergey Senozhatsky, which actually fix the same warnings:
>  https://lkml.org/lkml/2014/1/6/277 - [PATCH -next] x86 memtest: use NUMA_NO_NODE in do_one_pass()
>  https://lkml.org/lkml/2014/1/6/280 - [PATCH -next] e820: use NUMA_NO_NODE in memblock_find_dma_reserve()
>  http://comments.gmane.org/gmane.linux.kernel/1623429 - [PATCH -next] check: use NUMA_NO_NODE in setup_bios_corruption_check()
> 
Either one should be fine though $subject patch would be my personal preference.

Andrew,
This should kill at least 3 known memblock users with MAX_NUMNODES. Feel
free to pick the patch(s) as per your preference.

Regards,
Santosh




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