linux-kernel - Re: [PATCH 1/4] hugetlb, rmap: always use anon

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Message-ID: <20100910143724.GV8925@random.random>
Date:	Fri, 10 Sep 2010 16:37:25 +0200
From:	Andrea Arcangeli <aarcange@...hat.com>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Hugh Dickins <hughd@...gle.com>,
	Christoph Lameter <cl@...ux.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rik van Riel <riel@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Andi Kleen <andi@...stfloor.org>, linux-mm <linux-mm@...ck.org>
Subject: Re: [PATCH 1/4] hugetlb, rmap: always use anon_vma root pointer

On Fri, Sep 10, 2010 at 01:23:03PM +0900, Naoya Horiguchi wrote:
> This patch applies Andrea's fix given by the following patch into hugepage
> rmapping code:
> 
>   commit 288468c334e98aacbb7e2fb8bde6bc1adcd55e05
>   Author: Andrea Arcangeli <aarcange@...hat.com>
>   Date:   Mon Aug 9 17:19:09 2010 -0700
> 
> This patch uses anon_vma->root and avoids unnecessary overwriting when
> anon_vma is already set up.
> 
> Signed-off-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
> ---
>  mm/rmap.c |   13 +++++++------
>  1 files changed, 7 insertions(+), 6 deletions(-)

Acked-by: Andrea Arcangeli <aarcange@...hat.com>

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