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-rw-r--r--arch/i386/atomic.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/i386/atomic.h b/arch/i386/atomic.h
index 8a2a1234..4fe7bded 100644
--- a/arch/i386/atomic.h
+++ b/arch/i386/atomic.h
@@ -96,6 +96,11 @@ static inline void a_spin()
 	__asm__ __volatile__( "pause" : : : "memory" );
 }
 
+static inline void a_barrier()
+{
+	__asm__ __volatile__( "" : : : "memory" );
+}
+
 static inline void a_crash()
 {
 	__asm__ __volatile__( "hlt" : : : "memory" );