425 	n = rb_first(&node->rb_root_in);  in __sort_chain_flat()
456 	n = rb_first(&node->rb_root_in);  in __sort_chain_graph_abs()
487 	n = rb_first(&node->rb_root_in);  in __sort_chain_graph_rel()
549 		new->rb_root_in = parent->rb_root_in;  in create_child()
550 		parent->rb_root_in = RB_ROOT;  in create_child()
552 		n = rb_first(&new->rb_root_in);  in create_child()
560 		rb_link_node(&new->rb_node_in, NULL, &parent->rb_root_in.rb_node);  in create_child()
561 		rb_insert_color(&new->rb_node_in, &parent->rb_root_in);  in create_child()
848 		p = parent->rb_root_in.rb_node;  in split_add_child()
859 		rb_insert_color(&new->rb_node_in, &parent->rb_root_in);  in split_add_child()
879 	struct rb_node **p = &root->rb_root_in.rb_node;  in append_chain_children()
911 	rb_insert_color(&rnode->rb_node_in, &root->rb_root_in);  in append_chain_children()
1026 	n = rb_first(&src->rb_root_in);  in merge_chain_branch()
1030 		rb_erase(&child->rb_node_in, &src->rb_root_in);  in merge_chain_branch()
1267 	n = rb_first(&node->rb_root_in);  in callchain_node_branch_counts_cumul()
1470 	n = rb_first(&node->rb_root_in);  in free_callchain_node()
1474 		rb_erase(&child->rb_node_in, &node->rb_root_in);  in free_callchain_node()
1495 	n = rb_first(&node->rb_root_in);  in decay_callchain_node()