841 	struct btrfs_root *tree_root = fs_info->tree_root;  in btrfs_create_tree()  local
895 	ret = btrfs_insert_root(trans, tree_root, &key, &root->root_item);  in btrfs_create_tree()
1013 static struct btrfs_root *read_tree_root_path(struct btrfs_root *tree_root,  in read_tree_root_path()  argument
1019 	struct btrfs_fs_info *fs_info = tree_root->fs_info;  in read_tree_root_path()
1028 	ret = btrfs_find_root(tree_root, key, path,  in read_tree_root_path()
1076 struct btrfs_root *btrfs_read_tree_root(struct btrfs_root *tree_root,  in btrfs_read_tree_root()  argument
1085 	root = read_tree_root_path(tree_root, path, key);  in btrfs_read_tree_root()
1165 		return btrfs_grab_root(fs_info->tree_root);  in btrfs_get_global_root()
1254 	btrfs_put_root(fs_info->tree_root);  in btrfs_free_fs_info()
1326 	root = btrfs_read_tree_root(fs_info->tree_root, &key);  in btrfs_get_root_ref()
1348 	ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0);  in btrfs_get_root_ref()
1444 	root = read_tree_root_path(fs_info->tree_root, path, &key);  in btrfs_get_fs_root_commit_root()
1635 	btrfs_set_backup_tree_root(root_backup, info->tree_root->node->start);  in backup_super_roots()
1637 			       btrfs_header_generation(info->tree_root->node));  in backup_super_roots()
1640 			       btrfs_header_level(info->tree_root->node));  in backup_super_roots()
1797 	free_root_extent_buffers(info->tree_root);  in free_root_pointers()
1883 					      fs_info->tree_root);  in btrfs_init_btree_inode()
1906 	BTRFS_I(inode)->root = btrfs_grab_root(fs_info->tree_root);  in btrfs_init_btree_inode()
2090 static int load_global_roots_objectid(struct btrfs_root *tree_root,  in load_global_roots_objectid()  argument
2094 	struct btrfs_fs_info *fs_info = tree_root->fs_info;  in load_global_roots_objectid()
2113 		ret = btrfs_search_slot(NULL, tree_root, &key, path, 0, 0);  in load_global_roots_objectid()
2118 			ret = btrfs_next_leaf(tree_root, path);  in load_global_roots_objectid()
2140 		root = read_tree_root_path(tree_root, path, &key);  in load_global_roots_objectid()
2172 static int load_global_roots(struct btrfs_root *tree_root)  in load_global_roots()  argument
2181 	ret = load_global_roots_objectid(tree_root, path,  in load_global_roots()
2185 	ret = load_global_roots_objectid(tree_root, path,  in load_global_roots()
2189 	if (!btrfs_fs_compat_ro(tree_root->fs_info, FREE_SPACE_TREE))  in load_global_roots()
2191 	ret = load_global_roots_objectid(tree_root, path,  in load_global_roots()
2201 	struct btrfs_root *tree_root = fs_info->tree_root;  in btrfs_read_roots()  local
2206 	BUG_ON(!fs_info->tree_root);  in btrfs_read_roots()
2208 	ret = load_global_roots(tree_root);  in btrfs_read_roots()
2217 		root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2230 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2249 	root = btrfs_get_fs_root(tree_root->fs_info,  in btrfs_read_roots()
2262 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2270 	root = btrfs_read_tree_root(tree_root, &location);  in btrfs_read_roots()
2567 	ret = load_super_root(fs_info->tree_root, bytenr, gen, level);  in load_important_roots()
2579 	struct btrfs_root *tree_root = fs_info->tree_root;  in init_tree_roots()  local
2586 			if (!IS_ERR(tree_root->node))  in init_tree_roots()
2587 				free_extent_buffer(tree_root->node);  in init_tree_roots()
2588 			tree_root->node = NULL;  in init_tree_roots()
2621 		ret = btrfs_init_root_free_objectid(tree_root);  in init_tree_roots()
2627 		ASSERT(tree_root->free_objectid <= BTRFS_LAST_FREE_OBJECTID);  in init_tree_roots()
2636 		fs_info->generation = btrfs_header_generation(tree_root->node);  in init_tree_roots()
2988 	    (ret = btrfs_orphan_cleanup(fs_info->tree_root))) {  in btrfs_start_pre_rw_mount()
3164 	struct btrfs_root *tree_root;  in open_ctree()  local
3174 	tree_root = btrfs_alloc_root(fs_info, BTRFS_ROOT_TREE_OBJECTID,  in open_ctree()
3176 	fs_info->tree_root = tree_root;  in open_ctree()
3180 	if (!tree_root || !chunk_root) {  in open_ctree()
3482 						   tree_root,  in open_ctree()
4187 	struct btrfs_root *root = fs_info->tree_root;  in btrfs_commit_super()