X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=arch%2Farch-x86.h;h=9631437e857879b27b110eba4885fc53a363a43b;hb=9bbf57cc80d915d8cc87240276334ddd5aaac547;hp=4d7ea49dd1cdde71d004050875a95dc9c4c3ea80;hpb=697a606cc0af1c39ac18998c344a522199accb36;p=fio.git

diff --git a/arch/arch-x86.h b/arch/arch-x86.h
index 4d7ea49d..9631437e 100644
--- a/arch/arch-x86.h
+++ b/arch/arch-x86.h
@@ -30,6 +30,15 @@
 #define FIO_HAVE_SYSLET
 
 #define nop		__asm__ __volatile__("rep;nop": : :"memory")
-#define read_barrier()	asm volatile ("": : :"memory")
+#define read_barrier()	__asm__ __volatile__("": : :"memory")
+#define write_barrier()	__asm__ __volatile__("": : :"memory")
+
+static inline unsigned long arch_ffz(unsigned long bitmask)
+{
+	__asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask));
+	return bitmask;
+}
+#define ARCH_HAVE_FFZ
+#define ARCH_HAVE_SSE
 
 #endif