From: Catalin Marinas <catalin.marinas@arm.com>
Date: Wed, 28 Nov 2012 17:06:05 +0000 (+0000)
Subject: arm64: Make !dirty ptes read-only
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~65^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33eaa58f854770dc9c98411a356c98e3a53edfda;p=pandora-kernel.git

arm64: Make !dirty ptes read-only

The AArch64 Linux port relies on the mm code to wrprotect clean ptes.
This however is not the case with newly created ptes and
PAGE_SHARED(_EXEC) is writable but !dirty.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org>
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