Commit d594ffa9 authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Ingo Molnar

arch,arc: Convert smp_mb__*()

The arc mb() implementation is a compiler barrier(), therefore it all
doesn't matter one way or the other. Simply remove the existing
definitions and use whatever is generated by the defaults.
Signed-off-by: default avatarPeter Zijlstra <peterz@infradead.org>
Acked-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-ua48a59wri3ybz1rz8i7uvbr@git.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 6ae11028
...@@ -190,11 +190,6 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) ...@@ -190,11 +190,6 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
#endif /* !CONFIG_ARC_HAS_LLSC */ #endif /* !CONFIG_ARC_HAS_LLSC */
#define smp_mb__before_atomic_dec() barrier()
#define smp_mb__after_atomic_dec() barrier()
#define smp_mb__before_atomic_inc() barrier()
#define smp_mb__after_atomic_inc() barrier()
/** /**
* __atomic_add_unless - add unless the number is a given value * __atomic_add_unless - add unless the number is a given value
* @v: pointer of type atomic_t * @v: pointer of type atomic_t
......
...@@ -19,6 +19,7 @@ ...@@ -19,6 +19,7 @@
#include <linux/types.h> #include <linux/types.h>
#include <linux/compiler.h> #include <linux/compiler.h>
#include <asm/barrier.h>
/* /*
* Hardware assisted read-modify-write using ARC700 LLOCK/SCOND insns. * Hardware assisted read-modify-write using ARC700 LLOCK/SCOND insns.
...@@ -496,10 +497,6 @@ static inline __attribute__ ((const)) int __ffs(unsigned long word) ...@@ -496,10 +497,6 @@ static inline __attribute__ ((const)) int __ffs(unsigned long word)
*/ */
#define ffz(x) __ffs(~(x)) #define ffz(x) __ffs(~(x))
/* TODO does this affect uni-processor code */
#define smp_mb__before_clear_bit() barrier()
#define smp_mb__after_clear_bit() barrier()
#include <asm-generic/bitops/hweight.h> #include <asm-generic/bitops/hweight.h>
#include <asm-generic/bitops/fls64.h> #include <asm-generic/bitops/fls64.h>
#include <asm-generic/bitops/sched.h> #include <asm-generic/bitops/sched.h>
......
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