__find_xattr
ret = iterate_dir_item(root, path, __find_xattr, &ctx);
entry = __find_xattr(base_addr, max_addr, last_addr, index, len, name);
*xe = __find_xattr(cur_addr, last_txattr_addr, NULL, index, len, name);
here = __find_xattr(base_addr, last_base_addr, NULL, index, len, name);