* In this case, the first extent range will be cached but not emitted.
  * So we must emit it before ending extent_fiemap().
  */
-static int emit_last_fiemap_cache(struct btrfs_fs_info *fs_info,
-                                 struct fiemap_extent_info *fieinfo,
+static int emit_last_fiemap_cache(struct fiemap_extent_info *fieinfo,
                                  struct fiemap_cache *cache)
 {
        int ret;
        }
 out_free:
        if (!ret)
-               ret = emit_last_fiemap_cache(root->fs_info, fieinfo, &cache);
+               ret = emit_last_fiemap_cache(fieinfo, &cache);
        free_extent_map(em);
 out:
        btrfs_free_path(path);