(void) dsl_dir_create_sync(dp, dp->dp_root_dir, FREE_DIR_NAME, tx);
VERIFY(0 == dsl_pool_open_special_dir(dp,
FREE_DIR_NAME, &dp->dp_free_dir));
(void) dsl_dir_create_sync(dp, dp->dp_root_dir, FREE_DIR_NAME, tx);
VERIFY(0 == dsl_pool_open_special_dir(dp,
FREE_DIR_NAME, &dp->dp_free_dir));