Added but never needed.
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
                        ret = btrfs_dec_ref(trans, root, buf, 1);
                        BUG_ON(ret); /* -ENOMEM */
                }
-               clean_tree_block(trans, fs_info, buf);
+               clean_tree_block(fs_info, buf);
                *last_ref = 1;
        }
        return 0;
 
                path->locks[level] = 0;
                path->nodes[level] = NULL;
-               clean_tree_block(trans, fs_info, mid);
+               clean_tree_block(fs_info, mid);
                btrfs_tree_unlock(mid);
                /* once for the path */
                free_extent_buffer(mid);
                if (wret < 0 && wret != -ENOSPC)
                        ret = wret;
                if (btrfs_header_nritems(right) == 0) {
-                       clean_tree_block(trans, fs_info, right);
+                       clean_tree_block(fs_info, right);
                        btrfs_tree_unlock(right);
                        del_ptr(root, path, level + 1, pslot + 1);
                        root_sub_used(root, right->len);
                BUG_ON(wret == 1);
        }
        if (btrfs_header_nritems(mid) == 0) {
-               clean_tree_block(trans, fs_info, mid);
+               clean_tree_block(fs_info, mid);
                btrfs_tree_unlock(mid);
                del_ptr(root, path, level + 1, pslot);
                root_sub_used(root, mid->len);
        if (left_nritems)
                btrfs_mark_buffer_dirty(left);
        else
-               clean_tree_block(trans, fs_info, left);
+               clean_tree_block(fs_info, left);
 
        btrfs_mark_buffer_dirty(right);
 
        if (path->slots[0] >= left_nritems) {
                path->slots[0] -= left_nritems;
                if (btrfs_header_nritems(path->nodes[0]) == 0)
-                       clean_tree_block(trans, fs_info, path->nodes[0]);
+                       clean_tree_block(fs_info, path->nodes[0]);
                btrfs_tree_unlock(path->nodes[0]);
                free_extent_buffer(path->nodes[0]);
                path->nodes[0] = right;
        if (right_nritems)
                btrfs_mark_buffer_dirty(right);
        else
-               clean_tree_block(trans, fs_info, right);
+               clean_tree_block(fs_info, right);
 
        btrfs_item_key(right, &disk_key, 0);
        fixup_low_keys(fs_info, path, &disk_key, 1);
                        btrfs_set_header_level(leaf, 0);
                } else {
                        btrfs_set_path_blocking(path);
-                       clean_tree_block(trans, fs_info, leaf);
+                       clean_tree_block(fs_info, leaf);
                        btrfs_del_leaf(trans, root, path, leaf);
                }
        } else {
 
 
 }
 
-void clean_tree_block(struct btrfs_trans_handle *trans,
-                     struct btrfs_fs_info *fs_info,
+void clean_tree_block(struct btrfs_fs_info *fs_info,
                      struct extent_buffer *buf)
 {
        if (btrfs_header_generation(buf) ==
 
 struct extent_buffer *btrfs_find_create_tree_block(
                                                struct btrfs_fs_info *fs_info,
                                                u64 bytenr);
-void clean_tree_block(struct btrfs_trans_handle *trans,
-                     struct btrfs_fs_info *fs_info, struct extent_buffer *buf);
+void clean_tree_block(struct btrfs_fs_info *fs_info, struct extent_buffer *buf);
 int open_ctree(struct super_block *sb,
               struct btrfs_fs_devices *fs_devices,
               char *options);
 
        btrfs_set_header_generation(buf, trans->transid);
        btrfs_set_buffer_lockdep_class(root->root_key.objectid, buf, level);
        btrfs_tree_lock(buf);
-       clean_tree_block(trans, fs_info, buf);
+       clean_tree_block(fs_info, buf);
        clear_bit(EXTENT_BUFFER_STALE, &buf->bflags);
 
        btrfs_set_lock_blocking(buf);
                        btrfs_set_lock_blocking(eb);
                        path->locks[level] = BTRFS_WRITE_LOCK_BLOCKING;
                }
-               clean_tree_block(trans, fs_info, eb);
+               clean_tree_block(fs_info, eb);
        }
 
        if (eb == root->node) {
 
        list_del(&free_space_root->dirty_list);
 
        btrfs_tree_lock(free_space_root->node);
-       clean_tree_block(trans, fs_info, free_space_root->node);
+       clean_tree_block(fs_info, free_space_root->node);
        btrfs_tree_unlock(free_space_root->node);
        btrfs_free_tree_block(trans, free_space_root, free_space_root->node,
                              0, 1);
 
        list_del("a_root->dirty_list);
 
        btrfs_tree_lock(quota_root->node);
-       clean_tree_block(trans, fs_info, quota_root->node);
+       clean_tree_block(fs_info, quota_root->node);
        btrfs_tree_unlock(quota_root->node);
        btrfs_free_tree_block(trans, quota_root, quota_root->node, 0, 1);
 
 
                                if (trans) {
                                        btrfs_tree_lock(next);
                                        btrfs_set_lock_blocking(next);
-                                       clean_tree_block(trans, fs_info, next);
+                                       clean_tree_block(fs_info, next);
                                        btrfs_wait_tree_block_writeback(next);
                                        btrfs_tree_unlock(next);
                                }
                                if (trans) {
                                        btrfs_tree_lock(next);
                                        btrfs_set_lock_blocking(next);
-                                       clean_tree_block(trans, fs_info, next);
+                                       clean_tree_block(fs_info, next);
                                        btrfs_wait_tree_block_writeback(next);
                                        btrfs_tree_unlock(next);
                                }
                        if (trans) {
                                btrfs_tree_lock(next);
                                btrfs_set_lock_blocking(next);
-                               clean_tree_block(trans, fs_info, next);
+                               clean_tree_block(fs_info, next);
                                btrfs_wait_tree_block_writeback(next);
                                btrfs_tree_unlock(next);
                        }