From 9eb492efcaacb82d2be0a501b191abe6b64aeb0f Mon Sep 17 00:00:00 2001
From: Christophe Fergeau <cfergeau@redhat.com>
Date: Wed, 10 Apr 2013 13:59:34 +0200
Subject: [PATCH] Use gcc builtin rather than asm for memory barriers

This should make things more portable.
---
 spice/barrier.h | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/spice/barrier.h b/spice/barrier.h
index ed7200c..7d63721 100644
--- a/spice/barrier.h
+++ b/spice/barrier.h
@@ -34,14 +34,7 @@
 
 #ifdef __GNUC__
 
-#ifdef __i386__
-#define spice_mb() __asm__ __volatile__ ("lock; addl $0,0(%%esp)": : :"memory")
-#elif __x86_64__
-//mfence
-#define spice_mb() __asm__ __volatile__ ("lock; addl $0,0(%%rsp)": : :"memory")
-#elif defined __PPC64__
-#define spice_mb()   __asm__ __volatile__ ("lwsync" : : : "memory")
-#endif
+#define spice_mb() __sync_synchronize ()
 
 #else
 
-- 
2.1.0