// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2015 Facebook. All rights reserved.
*/
#include <linux/kernel.h>
#include <linux/sched/mm.h>
#include "messages.h"
#include "ctree.h"
#include "disk-io.h"
#include "locking.h"
#include "free-space-tree.h"
#include "transaction.h"
#include "block-group.h"
#include "fs.h"
#include "accessors.h"
#include "extent-tree.h"
#include "root-tree.h"
static int __add_block_group_free_space(struct btrfs_trans_handle *trans,
struct btrfs_block_group *block_group,
struct btrfs_path *path);
static struct btrfs_root *btrfs_free_space_root(
struct btrfs_block_group *block_group)
{
struct btrfs_key key = {
.objectid = BTRFS_FREE_SPACE_TREE_OBJECTID,
.type = BTRFS_ROOT_ITEM_KEY,
.offset = 0,
};
if (btrfs_fs_incompat(block_group->fs_info, EXTENT_TREE_V2))
key.offset = block_group->global_root_id;
return btrfs_
| 