282 	struct flow_head *head = rcu_dereference_bh(tp->root);  in flow_classify()  local
289 	list_for_each_entry_rcu(f, &head->filters, list) {  in flow_classify()
352 static void flow_destroy_filter(struct rcu_head *head)  in flow_destroy_filter()  argument
354 	struct flow_filter *f = container_of(head, struct flow_filter, rcu);  in flow_destroy_filter()
367 	struct flow_head *head = rtnl_dereference(tp->root);  in flow_change()  local
522 		list_add_tail_rcu(&fnew->list, &head->filters);  in flow_change()
551 	struct flow_head *head;  in flow_init()  local
553 	head = kzalloc(sizeof(*head), GFP_KERNEL);  in flow_init()
554 	if (head == NULL)  in flow_init()
556 	INIT_LIST_HEAD(&head->filters);  in flow_init()
557 	rcu_assign_pointer(tp->root, head);  in flow_init()
563 	struct flow_head *head = rtnl_dereference(tp->root);  in flow_destroy()  local
566 	if (!force && !list_empty(&head->filters))  in flow_destroy()
569 	list_for_each_entry_safe(f, next, &head->filters, list) {  in flow_destroy()
574 	kfree_rcu(head, rcu);  in flow_destroy()
580 	struct flow_head *head = rtnl_dereference(tp->root);  in flow_get()  local
583 	list_for_each_entry(f, &head->filters, list)  in flow_get()
652 	struct flow_head *head = rtnl_dereference(tp->root);  in flow_walk()  local
655 	list_for_each_entry(f, &head->filters, list) {  in flow_walk()