x86: fix sched_clock()

[ andi@firstfloor.org: build fix ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/include/asm-x86/tsc.h b/include/asm-x86/tsc.h
index f51a50d..071e0ce 100644
--- a/include/asm-x86/tsc.h
+++ b/include/asm-x86/tsc.h
@@ -46,7 +46,7 @@
 	if (!cpu_has_tsc)
 		return 0;
 #endif
-	return (cycles_t) native_read_tsc();
+	return (cycles_t) __native_read_tsc();
 }
 
 extern void tsc_init(void);