From: Richard Weinberger <richard@nod.at>
Date: Sun, 12 May 2013 21:26:03 +0000 (+0200)
Subject: um: Mark stub pages mapping with VM_PFNMAP
X-Git-Tag: v3.11-rc2~8^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dee20035b42d569984d2c16041b51e4d75e233b5;p=pandora-kernel.git

um: Mark stub pages mapping with VM_PFNMAP

Ensure that a process cannot destroy his stub pages with
using MADV_DONTNEED and friends.

Reported-by: toralf.foerster@gmx.de
Signed-off-by: Richard Weinberger <richard@nod.at>
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