From: Po-Yu Chuang <ratbert@faraday-tech.com>
Date: Thu, 9 Jun 2011 07:42:17 +0000 (+0100)
Subject: ARM: 6955/1: cmpxchg syscall should data abort if page not write
X-Git-Tag: v3.0-rc4~35^2~6
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=373ce3020b03fb6199415ab866595c7d627bbc97;p=pandora-kernel.git

ARM: 6955/1: cmpxchg syscall should data abort if page not write

If the page to cmpxchg is user mode read only (not write),
we should simulate a data abort first.

Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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