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

From: Rik van Riel
Date: Mon Jul 20 2009 - 14:37:39 EST


Izik Eidus wrote:
From: Hugh Dickins <hugh.dickins@xxxxxxxxxxxxx>

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@xxxxxxxxxx>

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