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Commit 21535aae authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
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s390: reuse asm-generic/barrier.h 



On s390 read_barrier_depends, smp_read_barrier_depends
smp_store_mb(), smp_mb__before_atomic and smp_mb__after_atomic match the
asm-generic variants exactly. Drop the local definitions and pull in
asm-generic/barrier.h instead.

This is in preparation to refactoring this code area.

Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
parent fbd7ec02

arch/s390/include/asm/barrier.h

+2 −8
Original line number Original line Diff line number Diff line
@@ -30,14 +30,6 @@ 
#define smp_rmb()			rmb()

#define smp_rmb()			rmb()

#define smp_wmb()			wmb()

#define smp_wmb()			wmb()





#define read_barrier_depends()		do { } while (0)

#define smp_read_barrier_depends()	do { } while (0)



#define smp_mb__before_atomic()		smp_mb()

#define smp_mb__after_atomic()		smp_mb()



#define smp_store_mb(var, value)	do { WRITE_ONCE(var, value); smp_mb(); } while (0)



#define smp_store_release(p, v)						\

#define smp_store_release(p, v)						\

do {									\

do {									\

	compiletime_assert_atomic_type(*p);				\

	compiletime_assert_atomic_type(*p);				\
@@ -53,4 +45,6 @@ do { \ 
	___p1;								\

	___p1;								\

})

})





#include <asm-generic/barrier.h>



#endif /* __ASM_BARRIER_H */
 
#endif /* __ASM_BARRIER_H */