rb_find_add
existing = rb_find_add(&new_stream->node, &smmu->streams,
curr = rb_find_add(&info->node, &iommu->device_rbtree, device_rid_cmp);
node = rb_find_add(&defrag->rb_node, &fs_info->defrag_inodes, inode_defrag_cmp);
tmp = rb_find_add(&root->rb_node, &fs_info->global_root_tree, global_root_cmp);
return rb_find_add(&simple_node->rb_node, root, rb_simple_node_bytenr_cmp);
node = rb_find_add(&prealloc->node, &fs_info->qgroup_tree, btrfs_qgroup_qgroupid_cmp);
node = rb_find_add(&block->node, &blocks->blocks[level], qgroup_swapped_block_bytenr_cmp);
node = rb_find_add(&be->node, root, block_entry_bytenr_cmp);
node = rb_find_add(&re->node, root, root_entry_root_objectid_cmp);
node = rb_find_add(&ref->node, root, ref_entry_cmp);
node = rb_find_add(&ins->rb_node, &ulist->root, ulist_node_val_cmp);