526 	struct kernfs_open_node *on, *new_on = NULL;  in kernfs_get_open_node()  local
537 	on = kn->attr.open;  in kernfs_get_open_node()
538 	if (on) {  in kernfs_get_open_node()
539 		atomic_inc(&on->refcnt);  in kernfs_get_open_node()
540 		list_add_tail(&of->list, &on->files);  in kernfs_get_open_node()
546 	if (on) {  in kernfs_get_open_node()
577 	struct kernfs_open_node *on = kn->attr.open;  in kernfs_put_open_node()  local
586 	if (atomic_dec_and_test(&on->refcnt))  in kernfs_put_open_node()
589 		on = NULL;  in kernfs_put_open_node()
594 	kfree(on);  in kernfs_put_open_node()
770 	struct kernfs_open_node *on;  in kernfs_drain_open_files()  local
777 	on = kn->attr.open;  in kernfs_drain_open_files()
778 	if (on)  in kernfs_drain_open_files()
779 		atomic_inc(&on->refcnt);  in kernfs_drain_open_files()
781 	if (!on)  in kernfs_drain_open_files()
786 	list_for_each_entry(of, &on->files, list) {  in kernfs_drain_open_files()
818 	struct kernfs_open_node *on = kn->attr.open;  in kernfs_generic_poll()  local
820 	poll_wait(of->file, &on->poll, wait);  in kernfs_generic_poll()
822 	if (of->event != atomic_read(&on->event))  in kernfs_generic_poll()
917 	struct kernfs_open_node *on;  in kernfs_notify()  local
924 	on = kn->attr.open;  in kernfs_notify()
925 	if (on) {  in kernfs_notify()
926 		atomic_inc(&on->event);  in kernfs_notify()
927 		wake_up_interruptible(&on->poll);  in kernfs_notify()