From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 4 Feb 2014 19:36:01 +0000 (+0100)
Subject: ia64: Fix up smp_mb__{before,after}_clear_bit()
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~35^2~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e4f9bfb3feaeaca55cf177dadb7e3313836b10f4;p=pandora-kernel.git

ia64: Fix up smp_mb__{before,after}_clear_bit()

IA64 doesn't actually have acquire/release barriers, its a lie!

Add a comment explaining this and fix up the bitop barriers.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-akevfh136um9dqvb1ohm55ca@git.kernel.org
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-ia64@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

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