linux-kernel - Re: [PATCH -mm] rmap: remove obsolete check from __page_check_anon

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Date:	Tue, 02 Feb 2010 00:26:39 +0900
From:	Minchan Kim <minchan.kim@...il.com>
To:	Rik van Riel <riel@...hat.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	lwoodman@...hat.com, akpm@...ux-foundation.org,
	Lee Schermerhorn <Lee.Schermerhorn@...com>, aarcange@...hat.com
Subject: Re: [PATCH -mm] rmap: remove obsolete check from
 __page_check_anon_rmap

On Thu, 2010-01-28 at 01:43 -0500, Rik van Riel wrote:
> When an anonymous page is inherited from a parent process, the
> vma->anon_vma can differ from the page anon_vma.  This can trip
> up __page_check_anon_rmap, which is indirectly called from
> do_swap_page().
> 
> Remove that obsolete check to prevent an oops.
> 
> Signed-off-by: Rik van Riel <riel@...hat.com>
Reviewed-by: Minchan Kim <minchan.kim>

Hmm, too late. 

-- 
Kind regards,
Minchan Kim


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