rb_insert_augmented_cached
rb_insert_augmented_cached(&node->rb, &mm->interval_tree, leftmost,
rb_insert_augmented_cached(&node->ITRB, root, \
rb_insert_augmented_cached(node, tree, leftmost, augment);
rb_insert_augmented_cached(&node->rb, root,
rb_insert_augmented_cached(&node->ITRB, root, \