diff --git a/include/asm-um/rwsem.h b/include/asm-um/rwsem.h
new file mode 100644
index 0000000..661c0e5
--- /dev/null
+++ b/include/asm-um/rwsem.h
@@ -0,0 +1,10 @@
+#ifndef __UM_RWSEM_H__
+#define __UM_RWSEM_H__
+
+#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 96)
+#define __builtin_expect(exp,c) (exp)
+#endif
+
+#include "asm/arch/rwsem.h"
+
+#endif