x86-64: enable arch ffz again

[fio.git] / arch / arch-s390.h

diff --git a/arch/arch-s390.h b/arch/arch-s390.h
index ed5d462d1d969b7e2db4cb994a88115813b24b44..c4ec1d12478cd17a5a0fd8943a4ca93264a6aff4 100644 (file)
--- a/arch/arch-s390.h
+++ b/arch/arch-s390.h
@@ -13,6 +13,6 @@
 #endif
 
 #define nop            asm volatile ("diag 0,0,68" : : : "memory")
-#define fio_ffz(v)     generic_ffz((v))
+#define read_barrier() asm volatile("bcr 15,0" : : : "memory")
 
 #endif