From: Alexander Stein <alexander.stein@systec-electronic.com>
Date: Mon, 23 Jan 2012 14:45:56 +0000 (+0100)
Subject: m68k: Do not set global share for non-kernel shared pages
X-Git-Tag: v3.3-rc5~23^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3372f5a7d005dd42e754490fed6a0171c4a018c6;p=pandora-kernel.git

m68k: Do not set global share for non-kernel shared pages

If the SG bit is set in MMUTR the page is accessible for all
userspace processes (ignoring the ASID). So a process might randomly
access a page from a different process which had a shared page
(from shared memory) in its context.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
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