linux-kernel - Re: [PATCH 14/14] x86, mm: Put pagetable on local node ram

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Date:	Fri, 8 Mar 2013 09:25:55 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Tang Chen <tangchen@...fujitsu.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Renninger <trenn@...e.de>, linux-kernel@...r.kernel.org,
	Tejun Heo <tj@...nel.org>, Pekka Enberg <penberg@...nel.org>,
	Jacob Shin <jacob.shin@....com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: Re: [PATCH 14/14] x86, mm: Put pagetable on local node ram

On Fri, Mar 8, 2013 at 12:20 AM, Tang Chen <tangchen@...fujitsu.com> wrote:
> Hi Yinghai,
>
> On 03/08/2013 12:58 PM, Yinghai Lu wrote:
> ......
>
>>         /* xen has big range in reserved near end of ram, skip it at
>> first.*/
>> -       addr = memblock_find_in_range(ISA_END_ADDRESS, end, PMD_SIZE,
>> PMD_SIZE);
>> +       addr = memblock_find_in_range(begin, end, PMD_SIZE, PMD_SIZE);
>
>
> Found that the latest code here is:
>
>  414         addr = memblock_find_in_range(ISA_END_ADDRESS, end, PMD_SIZE,
>  415                          PAGE_SIZE);
>                              ^^^^^^^^^^^^
>
> The "align" is PAGE_SIZE, not PMD_SIZE. Not sure if it is a problem. :)
>

Yes, it is PMD_SIZE.

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=98e7a989979b185f49e86ddaed2ad6890299d9f0

Thanks

Yinghai
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