1245 	struct btrfs_root *tree_root = fs_info->tree_root;  in btrfs_create_tree()  local
1290 	ret = btrfs_insert_root(trans, tree_root, &key, &root->root_item);  in btrfs_create_tree()
1393 static struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,  in btrfs_read_tree_root()  argument
1397 	struct btrfs_fs_info *fs_info = tree_root->fs_info;  in btrfs_read_tree_root()
1415 	ret = btrfs_find_root(tree_root, key, path,  in btrfs_read_tree_root()
1448 struct btrfs_root *btrfs_read_fs_root(struct btrfs_root *tree_root,  in btrfs_read_fs_root()  argument
1453 	root = btrfs_read_tree_root(tree_root, location);  in btrfs_read_fs_root()
1554 		return fs_info->tree_root;  in btrfs_get_fs_root()
1580 	root = btrfs_read_fs_root(fs_info->tree_root, location);  in btrfs_get_fs_root()
1602 	ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0);  in btrfs_get_fs_root()
1893 	    btrfs_header_generation(info->tree_root->node))  in backup_super_roots()
1906 	btrfs_set_backup_tree_root(root_backup, info->tree_root->node->start);  in backup_super_roots()
1908 			       btrfs_header_generation(info->tree_root->node));  in backup_super_roots()
1911 			       btrfs_header_level(info->tree_root->node));  in backup_super_roots()
2059 	free_root_extent_buffers(info->tree_root);  in free_root_pointers()
2149 	BTRFS_I(inode)->root = fs_info->tree_root;  in btrfs_init_btree_inode()
2322 	struct btrfs_root *tree_root = fs_info->tree_root;  in btrfs_read_roots()  local
2327 	BUG_ON(!fs_info->tree_root);  in btrfs_read_roots()
2333 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2342 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2352 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2361 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2369 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2381 		root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2615 	struct btrfs_root *tree_root;  in open_ctree()  local
2624 	tree_root = fs_info->tree_root = btrfs_alloc_root(fs_info, GFP_KERNEL);  in open_ctree()
2626 	if (!tree_root || !chunk_root) {  in open_ctree()
2791 	__setup_root(tree_root, fs_info, BTRFS_ROOT_TREE_OBJECTID);  in open_ctree()
2999 	tree_root->node = read_tree_block(fs_info,  in open_ctree()
3002 	if (IS_ERR(tree_root->node) ||  in open_ctree()
3003 	    !extent_buffer_uptodate(tree_root->node)) {  in open_ctree()
3005 		if (!IS_ERR(tree_root->node))  in open_ctree()
3006 			free_extent_buffer(tree_root->node);  in open_ctree()
3007 		tree_root->node = NULL;  in open_ctree()
3011 	btrfs_set_root_node(&tree_root->root_item, tree_root->node);  in open_ctree()
3012 	tree_root->commit_root = btrfs_root_node(tree_root);  in open_ctree()
3013 	btrfs_set_root_refs(&tree_root->root_item, 1);  in open_ctree()
3015 	mutex_lock(&tree_root->objectid_mutex);  in open_ctree()
3016 	ret = btrfs_find_highest_objectid(tree_root,  in open_ctree()
3017 					&tree_root->highest_objectid);  in open_ctree()
3019 		mutex_unlock(&tree_root->objectid_mutex);  in open_ctree()
3023 	ASSERT(tree_root->highest_objectid <= BTRFS_LAST_FREE_OBJECTID);  in open_ctree()
3025 	mutex_unlock(&tree_root->objectid_mutex);  in open_ctree()
3099 	fs_info->cleaner_kthread = kthread_run(cleaner_kthread, tree_root,  in open_ctree()
3105 						   tree_root,  in open_ctree()
3161 		ret = btrfs_recover_relocation(tree_root);  in open_ctree()
3219 	    (ret = btrfs_orphan_cleanup(fs_info->tree_root))) {  in open_ctree()
3912 	struct btrfs_root *root = fs_info->tree_root;  in btrfs_commit_super()
4510 		trace_btrfs_transaction_commit(fs_info->tree_root);  in btrfs_cleanup_transaction()