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

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

arch/arc/include/asm/atomic.h

+0 −5
Original line number Diff line number Diff line
@@ -190,11 +190,6 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) 


#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

 * @v: pointer of type atomic_t

arch/arc/include/asm/bitops.h

+1 −4
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 


#include <linux/types.h>

#include <linux/compiler.h>

#include <asm/barrier.h>



/*

 * Hardware assisted read-modify-write using ARC700 LLOCK/SCOND insns.
@@ -496,10 +497,6 @@ static inline __attribute__ ((const)) int __ffs(unsigned long word) 
 */

#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/fls64.h>

#include <asm-generic/bitops/sched.h>