334 	struct btrfs_fs_info *fs_info = NULL;  in backref_tree_panic()  local
338 		fs_info = bnode->root->fs_info;  in backref_tree_panic()
339 	btrfs_panic(fs_info, errno, "Inconsistency in backref cache "  in backref_tree_panic()
539 	    root->fs_info->running_transaction->transid - 1)  in should_ignore_root()
583 static struct btrfs_root *read_fs_root(struct btrfs_fs_info *fs_info,  in read_fs_root()  argument
595 	return btrfs_get_fs_root(fs_info, &key, false);  in read_fs_root()
610 	root = read_fs_root(rc->extent_root->fs_info, root_objectid);  in find_tree_root()
885 		root = read_fs_root(rc->extent_root->fs_info, key.offset);
1279 	struct reloc_control *rc = root->fs_info->reloc_ctl;
1293 		btrfs_panic(root->fs_info, -EEXIST, "Duplicate root found "
1312 	struct reloc_control *rc = root->fs_info->reloc_ctl;
1327 	spin_lock(&root->fs_info->trans_lock);
1329 	spin_unlock(&root->fs_info->trans_lock);
1341 	struct reloc_control *rc = root->fs_info->reloc_ctl;
1426 	ret = btrfs_insert_root(trans, root->fs_info->tree_root,
1431 	reloc_root = btrfs_read_fs_root(root->fs_info->tree_root, &root_key);
1445 	struct reloc_control *rc = root->fs_info->reloc_ctl;
1491 	if (root->fs_info->reloc_ctl->merge_reloc_tree &&
1503 	ret = btrfs_update_root(trans, root->fs_info->tree_root,
2273 	mutex_lock(&root->fs_info->reloc_mutex);
2276 	mutex_unlock(&root->fs_info->reloc_mutex);
2311 		root = read_fs_root(reloc_root->fs_info,
2368 	mutex_lock(&root->fs_info->reloc_mutex);
2370 	mutex_unlock(&root->fs_info->reloc_mutex);
2378 			root = read_fs_root(reloc_root->fs_info,
2417 		btrfs_std_error(root->fs_info, ret);
2422 		mutex_lock(&root->fs_info->reloc_mutex);
2424 		mutex_unlock(&root->fs_info->reloc_mutex);
2451 	root = read_fs_root(reloc_root->fs_info, reloc_root->root_key.offset);
3075 	em->bdev = root->fs_info->fs_devices->latest_bdev;
3353 	bool skinny = btrfs_fs_incompat(rc->extent_root->fs_info,
3432 static int delete_block_group_cache(struct btrfs_fs_info *fs_info,  argument
3438 	struct btrfs_root *root = fs_info->tree_root;
3449 	inode = btrfs_iget(fs_info->sb, &key, root, NULL);
3458 						 &fs_info->global_block_rsv);
3513 		ret = delete_block_group_cache(rc->extent_root->fs_info,
3526 	root = read_fs_root(rc->extent_root->fs_info, ref_root);
3833 	struct btrfs_fs_info *fs_info = rc->extent_root->fs_info;  local
3835 	mutex_lock(&fs_info->reloc_mutex);
3836 	fs_info->reloc_ctl = rc;
3837 	mutex_unlock(&fs_info->reloc_mutex);
3842 	struct btrfs_fs_info *fs_info = rc->extent_root->fs_info;  local
3844 	mutex_lock(&fs_info->reloc_mutex);
3845 	fs_info->reloc_ctl = NULL;
3846 	mutex_unlock(&fs_info->reloc_mutex);
4127 struct inode *create_reloc_inode(struct btrfs_fs_info *fs_info,  argument
4137 	root = read_fs_root(fs_info, BTRFS_DATA_RELOC_TREE_OBJECTID);
4155 	inode = btrfs_iget(root->fs_info->sb, &key, root, NULL);
4171 static struct reloc_control *alloc_reloc_control(struct btrfs_fs_info *fs_info)  argument
4183 			    fs_info->btree_inode->i_mapping);
4192 	struct btrfs_fs_info *fs_info = extent_root->fs_info;  local
4200 	rc = alloc_reloc_control(fs_info);
4206 	rc->block_group = btrfs_lookup_block_group(fs_info, group_start);
4224 	inode = lookup_free_space_inode(fs_info->tree_root, rc->block_group,
4229 		ret = delete_block_group_cache(fs_info, rc->block_group, inode, 0);
4238 	rc->data_inode = create_reloc_inode(fs_info, rc->block_group);
4245 	btrfs_info(extent_root->fs_info, "relocating block group %llu flags %llu",
4248 	ret = btrfs_start_delalloc_roots(fs_info, 0, -1);
4253 	btrfs_wait_ordered_roots(fs_info, -1);
4256 		mutex_lock(&fs_info->cleaner_mutex);
4258 		mutex_unlock(&fs_info->cleaner_mutex);
4267 		btrfs_info(extent_root->fs_info, "found %llu extents",
4300 	trans = btrfs_start_transaction(root->fs_info->tree_root, 0);
4308 	ret = btrfs_update_root(trans, root->fs_info->tree_root,
4311 	err = btrfs_end_transaction(trans, root->fs_info->tree_root);
4346 		ret = btrfs_search_slot(NULL, root->fs_info->tree_root, &key,
4374 			fs_root = read_fs_root(root->fs_info,
4400 	rc = alloc_reloc_control(root->fs_info);
4406 	rc->extent_root = root->fs_info->extent_root;
4430 		fs_root = read_fs_root(root->fs_info,
4465 		fs_root = read_fs_root(root->fs_info,
4495 	ret = btrfs_lookup_csums_range(root->fs_info->csum_root, disk_bytenr,
4536 	rc = root->fs_info->reloc_ctl;
4599 	rc = root->fs_info->reloc_ctl;
4634 	rc = root->fs_info->reloc_ctl;