Add write barriers

[fio.git] / arch / arch-alpha.h

diff --git a/arch/arch-alpha.h b/arch/arch-alpha.h
index 09293bd30fc52e5ac4488e7893594cc753ce6179..811d23a16612260cbd457db8248234e868252c19 100644 (file)
--- a/arch/arch-alpha.h
+++ b/arch/arch-alpha.h
@@ -12,7 +12,8 @@
 #define __NR_fadvise64         413
 #endif
 
-#define nop    do { } while (0)
-#define ffz(v) generic_ffz((v))
+#define nop                    do { } while (0)
+#define read_barrier()         __asm__ __volatile__("mb": : :"memory")
+#define writer_barrier()       __asm__ __volatile__("wmb": : :"memory")
 
 #endif