x86: introduce likely in macro.

Put the likely hint in access_ok. Just for
bisectability.
Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

include/asm-x86/uaccess_64.h

@@ -48,7 +48,7 @@
 	flag;								\
 })
 
-#define access_ok(type, addr, size) (__range_not_ok(addr, size) == 0)
+#define access_ok(type, addr, size) (likely(__range_not_ok(addr, size) == 0))
 
 /*
  * The exception table consists of pairs of addresses: the first is the