Re: [PATCHv4 16/39] thp, mm: locking tail page is a bug

From: Dave Hansen
Date: Wed May 22 2013 - 10:54:02 EST

On 05/22/2013 07:12 AM, Kirill A. Shutemov wrote:
> Dave Hansen wrote:
>> On 05/11/2013 06:23 PM, Kirill A. Shutemov wrote:
>>> From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
>>> Locking head page means locking entire compound page.
>>> If we try to lock tail page, something went wrong.
>> Have you actually triggered this in your development?
> Yes, on early prototypes.

I'd mention this in the description, and think about how necessary this
is with your _current_ code.

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