[PATCH kvm-unit-tests 1/2] x86:barriers: add smp_*mb

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Add smp_mb(), smb_rmb(), smb_wmb() for x86 matching the current kernel.

Signed-off-by: Roman Kagan <rkagan@xxxxxxxxxxxxx>
---
 lib/x86/asm/barrier.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/x86/asm/barrier.h b/lib/x86/asm/barrier.h
index d602a2c..85dc8b3 100644
--- a/lib/x86/asm/barrier.h
+++ b/lib/x86/asm/barrier.h
@@ -6,8 +6,14 @@
  * This work is licensed under the terms of the GNU LGPL, version 2.
  */
 
+#include <processor.h>
+
 #define mb()	asm volatile("mfence":::"memory")
 #define rmb()	asm volatile("lfence":::"memory")
 #define wmb()	asm volatile("sfence":::"memory")
 
+#define smp_mb()	mb()
+#define smp_rmb()	barrier()
+#define smp_wmb()	barrier()
+
 #endif
-- 
2.5.5

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