Commit 21535aae authored by Michael S. Tsirkin's avatar Michael S. Tsirkin

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
...@@ -30,14 +30,6 @@ ...@@ -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 { \ ...@@ -53,4 +45,6 @@ do { \
___p1; \ ___p1; \
}) })
#include <asm-generic/barrier.h>
#endif /* __ASM_BARRIER_H */ #endif /* __ASM_BARRIER_H */
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