1250 	struct btrfs_root *tree_root = fs_info->tree_root;  in btrfs_create_tree()  local
1304 	ret = btrfs_insert_root(trans, tree_root, &key, &root->root_item);  in btrfs_create_tree()
1425 static struct btrfs_root *read_tree_root_path(struct btrfs_root *tree_root,  in read_tree_root_path()  argument
1430 	struct btrfs_fs_info *fs_info = tree_root->fs_info;  in read_tree_root_path()
1439 	ret = btrfs_find_root(tree_root, key, path,  in read_tree_root_path()
1467 struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,  in btrfs_read_tree_root()  argument
1476 	root = read_tree_root_path(tree_root, path, key);  in btrfs_read_tree_root()
1558 		return btrfs_grab_root(fs_info->tree_root);  in btrfs_get_global_root()
1634 	btrfs_put_root(fs_info->tree_root);  in btrfs_free_fs_info()
1696 	root = btrfs_read_tree_root(fs_info->tree_root, &key);  in btrfs_get_root_ref()
1718 	ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0);  in btrfs_get_root_ref()
1805 	root = read_tree_root_path(fs_info->tree_root, path, &key);  in btrfs_get_fs_root_commit_root()
2013 	btrfs_set_backup_tree_root(root_backup, info->tree_root->node->start);  in backup_super_roots()
2015 			       btrfs_header_generation(info->tree_root->node));  in backup_super_roots()
2018 			       btrfs_header_level(info->tree_root->node));  in backup_super_roots()
2157 	free_root_extent_buffers(info->tree_root);  in free_root_pointers()
2261 	BTRFS_I(inode)->root = btrfs_grab_root(fs_info->tree_root);  in btrfs_init_btree_inode()
2432 	struct btrfs_root *tree_root = fs_info->tree_root;  in btrfs_read_roots()  local
2437 	BUG_ON(!fs_info->tree_root);  in btrfs_read_roots()
2443 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2455 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2471 		root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2487 	root = btrfs_get_fs_root(tree_root->fs_info,  in btrfs_read_roots()
2500 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2508 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2522 		root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2777 	struct btrfs_root *tree_root = fs_info->tree_root;  in init_tree_roots()  local
2787 			if (!IS_ERR(tree_root->node))  in init_tree_roots()
2788 				free_extent_buffer(tree_root->node);  in init_tree_roots()
2789 			tree_root->node = NULL;  in init_tree_roots()
2812 		tree_root->node = read_tree_block(fs_info, btrfs_super_root(sb),  in init_tree_roots()
2815 		if (IS_ERR(tree_root->node)) {  in init_tree_roots()
2817 			ret = PTR_ERR(tree_root->node);  in init_tree_roots()
2818 			tree_root->node = NULL;  in init_tree_roots()
2822 		} else if (!extent_buffer_uptodate(tree_root->node)) {  in init_tree_roots()
2829 		btrfs_set_root_node(&tree_root->root_item, tree_root->node);  in init_tree_roots()
2830 		tree_root->commit_root = btrfs_root_node(tree_root);  in init_tree_roots()
2831 		btrfs_set_root_refs(&tree_root->root_item, 1);  in init_tree_roots()
2837 		ret = btrfs_init_root_free_objectid(tree_root);  in init_tree_roots()
2843 		ASSERT(tree_root->free_objectid <= BTRFS_LAST_FREE_OBJECTID);  in init_tree_roots()
3131 	    (ret = btrfs_orphan_cleanup(fs_info->tree_root))) {  in btrfs_start_pre_rw_mount()
3138 	ret = btrfs_recover_relocation(fs_info->tree_root);  in btrfs_start_pre_rw_mount()
3199 	struct btrfs_root *tree_root;  in open_ctree()  local
3212 	tree_root = btrfs_alloc_root(fs_info, BTRFS_ROOT_TREE_OBJECTID,  in open_ctree()
3214 	fs_info->tree_root = tree_root;  in open_ctree()
3218 	if (!tree_root || !chunk_root) {  in open_ctree()
3565 	fs_info->cleaner_kthread = kthread_run(cleaner_kthread, tree_root,  in open_ctree()
3571 						   tree_root,  in open_ctree()
4288 	struct btrfs_root *root = fs_info->tree_root;  in btrfs_commit_super()
4963 		trace_btrfs_transaction_commit(fs_info->tree_root);  in btrfs_cleanup_transaction()