37 	int ret;  in btrfs_uuid_tree_lookup()  local
46 		ret = -ENOENT;  in btrfs_uuid_tree_lookup()
52 		ret = -ENOMEM;  in btrfs_uuid_tree_lookup()
57 	ret = btrfs_search_slot(NULL, uuid_root, &key, path, 0, 0);  in btrfs_uuid_tree_lookup()
58 	if (ret < 0) {  in btrfs_uuid_tree_lookup()
60 	} else if (ret > 0) {  in btrfs_uuid_tree_lookup()
61 		ret = -ENOENT;  in btrfs_uuid_tree_lookup()
69 	ret = -ENOENT;  in btrfs_uuid_tree_lookup()
81 			ret = 0;  in btrfs_uuid_tree_lookup()
90 	return ret;  in btrfs_uuid_tree_lookup()
97 	int ret;  in btrfs_uuid_tree_add()  local
105 	ret = btrfs_uuid_tree_lookup(uuid_root, uuid, type, subid_cpu);  in btrfs_uuid_tree_add()
106 	if (ret != -ENOENT)  in btrfs_uuid_tree_add()
107 		return ret;  in btrfs_uuid_tree_add()
110 		ret = -EINVAL;  in btrfs_uuid_tree_add()
118 		ret = -ENOMEM;  in btrfs_uuid_tree_add()
122 	ret = btrfs_insert_empty_item(trans, uuid_root, path, &key,  in btrfs_uuid_tree_add()
124 	if (ret >= 0) {  in btrfs_uuid_tree_add()
129 	} else if (ret == -EEXIST) {  in btrfs_uuid_tree_add()
139 	} else if (ret < 0) {  in btrfs_uuid_tree_add()
142 			ret, (unsigned long long)key.objectid,  in btrfs_uuid_tree_add()
147 	ret = 0;  in btrfs_uuid_tree_add()
154 	return ret;  in btrfs_uuid_tree_add()
161 	int ret;  in btrfs_uuid_tree_rem()  local
173 		ret = -EINVAL;  in btrfs_uuid_tree_rem()
181 		ret = -ENOMEM;  in btrfs_uuid_tree_rem()
185 	ret = btrfs_search_slot(trans, uuid_root, &key, path, -1, 1);  in btrfs_uuid_tree_rem()
186 	if (ret < 0) {  in btrfs_uuid_tree_rem()
188 			ret);  in btrfs_uuid_tree_rem()
191 	if (ret > 0) {  in btrfs_uuid_tree_rem()
192 		ret = -ENOENT;  in btrfs_uuid_tree_rem()
203 		ret = -ENOENT;  in btrfs_uuid_tree_rem()
217 		ret = -ENOENT;  in btrfs_uuid_tree_rem()
223 		ret = btrfs_del_item(trans, uuid_root, path);  in btrfs_uuid_tree_rem()
235 	return ret;  in btrfs_uuid_tree_rem()
242 	int ret;  in btrfs_uuid_iter_rem()  local
247 		ret = PTR_ERR(trans);  in btrfs_uuid_iter_rem()
251 	ret = btrfs_uuid_tree_rem(trans, uuid_root, uuid, type, subid);  in btrfs_uuid_iter_rem()
255 	return ret;  in btrfs_uuid_iter_rem()
265 	int ret = 0;  in btrfs_uuid_tree_iterate()  local
273 		ret = -ENOMEM;  in btrfs_uuid_tree_iterate()
282 	ret = btrfs_search_forward(root, &key, path, 0);  in btrfs_uuid_tree_iterate()
283 	if (ret) {  in btrfs_uuid_tree_iterate()
284 		if (ret > 0)  in btrfs_uuid_tree_iterate()
285 			ret = 0;  in btrfs_uuid_tree_iterate()
316 			ret = check_func(fs_info, uuid, key.type, subid_cpu);  in btrfs_uuid_tree_iterate()
317 			if (ret < 0)  in btrfs_uuid_tree_iterate()
319 			if (ret > 0) {  in btrfs_uuid_tree_iterate()
321 				ret = btrfs_uuid_iter_rem(root, uuid, key.type,  in btrfs_uuid_tree_iterate()
323 				if (ret == 0) {  in btrfs_uuid_tree_iterate()
333 				if (ret < 0 && ret != -ENOENT)  in btrfs_uuid_tree_iterate()
341 		ret = btrfs_next_item(root, path);  in btrfs_uuid_tree_iterate()
342 		if (ret == 0)  in btrfs_uuid_tree_iterate()
344 		else if (ret > 0)  in btrfs_uuid_tree_iterate()
345 			ret = 0;  in btrfs_uuid_tree_iterate()
351 	if (ret)  in btrfs_uuid_tree_iterate()
352 		btrfs_warn(fs_info, "btrfs_uuid_tree_iterate failed %d", ret);  in btrfs_uuid_tree_iterate()