591 	struct task_struct *reaper = pid_ns->child_reaper;  in find_child_reaper()  local
594 	if (likely(reaper != father))  in find_child_reaper()
595 		return reaper;  in find_child_reaper()
597 	reaper = find_alive_thread(father);  in find_child_reaper()
598 	if (reaper) {  in find_child_reaper()
599 		pid_ns->child_reaper = reaper;  in find_child_reaper()
600 		return reaper;  in find_child_reaper()
626 	struct task_struct *thread, *reaper;  in find_new_reaper()  local
642 		for (reaper = father->real_parent;  in find_new_reaper()
643 		     task_pid(reaper)->level == ns_level;  in find_new_reaper()
644 		     reaper = reaper->real_parent) {  in find_new_reaper()
645 			if (reaper == &init_task)  in find_new_reaper()
647 			if (!reaper->signal->is_child_subreaper)  in find_new_reaper()
649 			thread = find_alive_thread(reaper);  in find_new_reaper()
693 	struct task_struct *p, *t, *reaper;  in forget_original_parent()  local
699 	reaper = find_child_reaper(father, dead);  in forget_original_parent()
703 	reaper = find_new_reaper(father, reaper);  in forget_original_parent()
706 			RCU_INIT_POINTER(t->real_parent, reaper);  in forget_original_parent()
719 		if (!same_thread_group(reaper, father))  in forget_original_parent()
722 	list_splice_tail_init(&father->children, &reaper->children);  in forget_original_parent()