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authorMichael S. Tsirkin <mst@redhat.com>2015-12-21 10:22:18 +0300
committerMichael S. Tsirkin <mst@redhat.com>2016-01-12 21:46:47 +0300
commit53a05ac15ee04b56ce02f0f831556e2fcdcce93f (patch)
tree40a51c5370bb1f1c439f151fa3f579c5d8d00f6c /arch/ia64
parent9505ec0825a09ea97426d026f2524d1cefa83a84 (diff)
downloadlinux-53a05ac15ee04b56ce02f0f831556e2fcdcce93f.tar.xz
ia64: reuse asm-generic/barrier.h
On ia64 smp_rmb, smp_wmb, read_barrier_depends, smp_read_barrier_depends and smp_store_mb() 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: Michael S. Tsirkin <mst@redhat.com> Acked-by: Tony Luck <tony.luck@intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/include/asm/barrier.h10
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
index 209c4b817c95..2f933480a764 100644
--- a/arch/ia64/include/asm/barrier.h
+++ b/arch/ia64/include/asm/barrier.h
@@ -48,12 +48,6 @@
# define smp_mb() barrier()
#endif
-#define smp_rmb() smp_mb()
-#define smp_wmb() smp_mb()
-
-#define read_barrier_depends() do { } while (0)
-#define smp_read_barrier_depends() do { } while (0)
-
#define smp_mb__before_atomic() barrier()
#define smp_mb__after_atomic() barrier()
@@ -77,12 +71,12 @@ do { \
___p1; \
})
-#define smp_store_mb(var, value) do { WRITE_ONCE(var, value); smp_mb(); } while (0)
-
/*
* The group barrier in front of the rsm & ssm are necessary to ensure
* that none of the previous instructions in the same group are
* affected by the rsm/ssm.
*/
+#include <asm-generic/barrier.h>
+
#endif /* _ASM_IA64_BARRIER_H */