408 	struct callchain_node *new;  in create_child()  local
410 	new = zalloc(sizeof(*new));  in create_child()
411 	if (!new) {  in create_child()
415 	new->parent = parent;  in create_child()
416 	INIT_LIST_HEAD(&new->val);  in create_child()
422 		new->rb_root_in = parent->rb_root_in;  in create_child()
425 		n = rb_first(&new->rb_root_in);  in create_child()
428 			child->parent = new;  in create_child()
433 		rb_link_node(&new->rb_node_in, NULL, &parent->rb_root_in.rb_node);  in create_child()
434 		rb_insert_color(&new->rb_node_in, &parent->rb_root_in);  in create_child()
437 	return new;  in create_child()
478 	struct callchain_node *new;  in add_child()  local
480 	new = create_child(parent, false);  in add_child()
481 	fill_node(new, cursor);  in add_child()
483 	new->children_hit = 0;  in add_child()
484 	new->hit = period;  in add_child()
485 	return new;  in add_child()
511 	struct callchain_node *new;  in split_add_child()  local
516 	new = create_child(parent, true);  in split_add_child()
521 	new->val.next = &to_split->list;  in split_add_child()
522 	new->val.prev = old_tail;  in split_add_child()
523 	to_split->list.prev = &new->val;  in split_add_child()
524 	old_tail->next = &new->val;  in split_add_child()
527 	new->hit = parent->hit;  in split_add_child()
528 	new->children_hit = parent->children_hit;  in split_add_child()
529 	parent->children_hit = callchain_cumul_hits(new);  in split_add_child()
530 	new->val_nr = parent->val_nr - idx_local;  in split_add_child()
544 		new = add_child(parent, cursor, period);  in split_add_child()
560 		rb_link_node(&new->rb_node_in, p, pp);  in split_add_child()
561 		rb_insert_color(&new->rb_node_in, &parent->rb_root_in);  in split_add_child()