diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 113d1ad1ced76e0c138c9dd05d1420ff28c71616..d8ef0a3d2e7e1525b0e8416ed33546d70104152f 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -556,6 +556,14 @@ extern bool current_is_single_threaded(void);
 typedef int (*proc_visitor)(struct task_struct *p, void *data);
 void walk_process_tree(struct task_struct *top, proc_visitor, void *);
 
+static inline
+struct pid *task_pid_type(struct task_struct *task, enum pid_type type)
+{
+	if (type != PIDTYPE_PID)
+		task = task->group_leader;
+	return task->pids[type].pid;
+}
+
 static inline int get_nr_threads(struct task_struct *tsk)
 {
 	return tsk->signal->nr_threads;
diff --git a/kernel/exit.c b/kernel/exit.c
index c3c7ac5601140961563534441908b52ced5a557c..16432428fc6c5c004add4fab6fc89e4c3a485f0a 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1001,14 +1001,6 @@ struct wait_opts {
 	int			notask_error;
 };
 
-static inline
-struct pid *task_pid_type(struct task_struct *task, enum pid_type type)
-{
-	if (type != PIDTYPE_PID)
-		task = task->group_leader;
-	return task->pids[type].pid;
-}
-
 static int eligible_pid(struct wait_opts *wo, struct task_struct *p)
 {
 	return	wo->wo_type == PIDTYPE_MAX ||