linux-kernel - [tip:locking/core] arch,openrisc: Convert smp_mb_

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Message-ID: <tip-sxgxgqag9tond4kji07d22oh@git.kernel.org>
Date:	Fri, 18 Apr 2014 06:10:58 -0700
From:	tip-bot for Peter Zijlstra <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	torvalds@...ux-foundation.org, peterz@...radead.org,
	paulmck@...ux.vnet.ibm.com, tglx@...utronix.de, jonas@...thpole.se
Subject: [tip:locking/core] arch,openrisc: Convert smp_mb__*()

Commit-ID:  0f5c6f9e18e14b4ebd83dd08e81ca8143d43de28
Gitweb:     http://git.kernel.org/tip/0f5c6f9e18e14b4ebd83dd08e81ca8143d43de28
Author:     Peter Zijlstra <peterz@...radead.org>
AuthorDate: Thu, 13 Mar 2014 19:00:36 +0100
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Fri, 18 Apr 2014 14:20:40 +0200

arch,openrisc: Convert smp_mb__*()

Openrisc fully relies on asm-generic/barrier.h and therefore its
smp_mb() is barrier().

Signed-off-by: Peter Zijlstra <peterz@...radead.org>
Acked-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-sxgxgqag9tond4kji07d22oh@git.kernel.org
Cc: Jonas Bonn <jonas@...thpole.se>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org
Cc: linux@...ts.openrisc.net
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/openrisc/include/asm/bitops.h | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/arch/openrisc/include/asm/bitops.h b/arch/openrisc/include/asm/bitops.h
index 2c64f22..3003cda 100644
--- a/arch/openrisc/include/asm/bitops.h
+++ b/arch/openrisc/include/asm/bitops.h
@@ -27,14 +27,7 @@
 
 #include <linux/irqflags.h>
 #include <linux/compiler.h>
-
-/*
- * clear_bit may not imply a memory barrier
- */
-#ifndef smp_mb__before_clear_bit
-#define smp_mb__before_clear_bit()	smp_mb()
-#define smp_mb__after_clear_bit()	smp_mb()
-#endif
+#include <asm/barrier.h>
 
 #include <asm/bitops/__ffs.h>
 #include <asm-generic/bitops/ffz.h>
--
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