linux-kernel - Re: [PATCH 2/3] mm: hugetlb: use get_page_foll in follow_hugetlb

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Message-ID: <528BD7B8.4030108@oracle.com>
Date:	Tue, 19 Nov 2013 14:27:20 -0700
From:	Khalid Aziz <khalid.aziz@...cle.com>
To:	Andrea Arcangeli <aarcange@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Pravin Shelar <pshelar@...ira.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ben Hutchings <bhutchings@...arflare.com>,
	Christoph Lameter <cl@...ux.com>,
	Johannes Weiner <jweiner@...hat.com>,
	Mel Gorman <mgorman@...e.de>, Rik van Riel <riel@...hat.com>,
	Andi Kleen <andi@...stfloor.org>,
	Minchan Kim <minchan@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 2/3] mm: hugetlb: use get_page_foll in follow_hugetlb_page

On 11/15/2013 10:47 AM, Andrea Arcangeli wrote:
> get_page_foll is more optimal and is always safe to use under the PT
> lock. More so for hugetlbfs as there's no risk of race conditions with
> split_huge_page regardless of the PT lock.
>
> Signed-off-by: Andrea Arcangeli <aarcange@...hat.com>

Reviewed-by: Khalid Aziz <khalid.aziz@...cle.com>

--
Khalid

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