hold_lock_file_for_update(&lock_file, index_path, LOCK_DIE_ON_ERROR);
- entries = read_index_from(index_state, index_path);
+ entries = read_index_from(index_state, index_path, get_git_dir());
if (entries < 0) {
ret = WRITE_TREE_UNREADABLE_INDEX;
goto out;