diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1a63984..03dd224 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -361,6 +361,7 @@
 extern signed long schedule_timeout_killable(signed long timeout);
 extern signed long schedule_timeout_uninterruptible(signed long timeout);
 asmlinkage void schedule(void);
+extern void schedule_preempt_disabled(void);
 extern int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner);
 
 struct nsproxy;