linux-kernel - Re: [PATCH 08/10] ksm: prevent mremap move poisoning

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Message-ID: <4A64B964.2080307@redhat.com>
Date:	Mon, 20 Jul 2009 14:37:24 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Izik Eidus <ieidus@...hat.com>
CC:	akpm@...ux-foundation.org, hugh.dickins@...cali.co.uk,
	aarcange@...hat.com, chrisw@...hat.com, avi@...hat.com,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	nickpiggin@...oo.com.au
Subject: Re: [PATCH 08/10] ksm: prevent mremap move poisoning

Izik Eidus wrote:
> From: Hugh Dickins <hugh.dickins@...cali.co.uk>
> 
> KSM's scan allows for user pages to be COWed or unmapped at any time,
> without requiring any notification.  But its stable tree does assume
> that when it finds a KSM page where it placed a KSM page, then it is
> the same KSM page that it placed there.

Acked-by: Rik van Riel <riel@...hat.com>

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