diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5d6b922..b5ef92a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -696,9 +696,12 @@
 
 	int lock_depth;		/* BKL lock depth */
 
-#if defined(CONFIG_SMP) && defined(__ARCH_WANT_UNLOCKED_CTXSW)
+#if defined(CONFIG_SMP)
+	int last_waker_cpu;	/* CPU that last woke this task up */
+#if defined(__ARCH_WANT_UNLOCKED_CTXSW)
 	int oncpu;
 #endif
+#endif
 	int prio, static_prio;
 	struct list_head run_list;
 	prio_array_t *array;