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arch,sh: Convert smp_mb__*()

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SH can use the asm-generic/barrier.h implementation since that uses
smp_mb().

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-2z962by2ppzcd984ybw2mwdw@git.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra 2014-03-13 19:00:35 +01:00 committed by Ingo Molnar
parent 57aa6a7686
commit 603228bcb8
2 changed files with 2 additions and 11 deletions
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6
arch/sh/include/asm/atomic.h
View File

@ -10,6 +10,7 @@
#include <linux/compiler.h>
#include <linux/types.h>
#include <asm/cmpxchg.h>
#include <asm/barrier.h>
#define ATOMIC_INIT(i) { (i) }
@ -62,9 +63,4 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
return c;
}
#define smp_mb__before_atomic_dec() smp_mb()
#define smp_mb__after_atomic_dec() smp_mb()
#define smp_mb__before_atomic_inc() smp_mb()
#define smp_mb__after_atomic_inc() smp_mb()
#endif /* __ASM_SH_ATOMIC_H */

7
arch/sh/include/asm/bitops.h
View File

@ -9,6 +9,7 @@
/* For __swab32 */
#include <asm/byteorder.h>
#include <asm/barrier.h>
#ifdef CONFIG_GUSA_RB
#include <asm/bitops-grb.h>
@ -22,12 +23,6 @@
#include <asm-generic/bitops/non-atomic.h>
#endif
/*
* clear_bit() doesn't provide any barrier for the compiler.
*/
#define smp_mb__before_clear_bit() smp_mb()
#define smp_mb__after_clear_bit() smp_mb()
#ifdef CONFIG_SUPERH32
static inline unsigned long ffz(unsigned long word)
{