From 4cde7e0dca98e0e93dceb174d83f766d0d637c23 Mon Sep 17 00:00:00 2001
From: Heechul Yun <heechul@illinois.edu>
Date: Tue, 19 Jul 2011 13:26:54 +0100
Subject: [PATCH] ARM: 6998/2: kernel: use proper memory barriers for bitops

Improve scalability by avoiding costly and unnecessary L2 cache sync
in handling bitops.

Signed-off-by: Heechul Yun <hyun@nvidia.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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