From: tip-bot for Peter Zijlstra <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org,
torvalds@linux-foundation.org, peterz@infradead.org,
msalter@redhat.com, paulmck@linux.vnet.ibm.com,
a-jacquiot@ti.com, tglx@linutronix.de
Subject: [tip:locking/core] arch,c6x: Convert smp_mb__*()
Date: Fri, 18 Apr 2014 06:05:53 -0700 [thread overview]
Message-ID: <tip-kl53k3pyj0rbd80jq8ralpf3@git.kernel.org> (raw)
Commit-ID: a8ec1516a74554992605f230859936d5d79c27ed
Gitweb: http://git.kernel.org/tip/a8ec1516a74554992605f230859936d5d79c27ed
Author: Peter Zijlstra <peterz@infradead.org>
AuthorDate: Thu, 13 Mar 2014 19:00:37 +0100
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Fri, 18 Apr 2014 11:40:34 +0200
arch,c6x: Convert smp_mb__*()
c6x doesn't have a barrier.h and completely relies on
asm-generic/barrier.h. Therefore its smp_mb() is barrier() and we can
use the default versions that are smp_mb().
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Mark Salter <msalter@redhat.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-kl53k3pyj0rbd80jq8ralpf3@git.kernel.org
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: linux-c6x-dev@linux-c6x.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/c6x/include/asm/bitops.h | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/arch/c6x/include/asm/bitops.h b/arch/c6x/include/asm/bitops.h
index 0bec7e5..f0ab012 100644
--- a/arch/c6x/include/asm/bitops.h
+++ b/arch/c6x/include/asm/bitops.h
@@ -14,14 +14,8 @@
#ifdef __KERNEL__
#include <linux/bitops.h>
-
#include <asm/byteorder.h>
-
-/*
- * clear_bit() doesn't provide any barrier for the compiler.
- */
-#define smp_mb__before_clear_bit() barrier()
-#define smp_mb__after_clear_bit() barrier()
+#include <asm/barrier.h>
/*
* We are lucky, DSP is perfect for bitops: do it in 3 cycles
reply other threads:[~2014-04-18 13:06 UTC|newest]
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