dm_btree_del
r = dm_btree_del(&md->writeset_tree_info,
dm_btree_del(&pmd->bl_info, dev_root);
dm_btree_del(&pmd->bl_info, dev_root);
dm_btree_del(&pmd->info, le64_to_cpu(disk_super->data_mapping_root));
dm_btree_del(&pmd->details_info, le64_to_cpu(disk_super->device_details_root));
if (dm_btree_del(info, le64_to_cpu(*root_le)))
return dm_btree_del(&info->btree_info, root);
EXPORT_SYMBOL_GPL(dm_btree_del);
int dm_btree_del(struct dm_btree_info *info, dm_block_t root);