fs/btrfs/uuid-tree.c

27 	int ret;
36 		ret = -ENOENT;
42 		ret = -ENOMEM;
47 	ret = btrfs_search_slot(NULL, uuid_root, &key, path, 0, 0);
48 	if (ret < 0) {
50 	} else if (ret > 0) {
51 		ret = -ENOENT;
59 	ret = -ENOENT;
72 			ret = 0;
81 	return ret;
89 	int ret;
97 	ret = btrfs_uuid_tree_lookup(uuid_root, uuid, type, subid_cpu);
98 	if (ret != -ENOENT)
99 		return ret;
102 		ret = -EINVAL;
110 		ret = -ENOMEM;
114 	ret = btrfs_insert_empty_item(trans, uuid_root, path, &key,
116 	if (ret == 0) {
121 	} else if (ret == -EEXIST) {
134 			   ret, key.objectid, key.offset, type);
138 	ret = 0;
145 	return ret;
153 	int ret;
165 		ret = -EINVAL;
173 		ret = -ENOMEM;
177 	ret = btrfs_search_slot(trans, uuid_root, &key, path, -1, 1);
178 	if (ret < 0) {
180 			   ret);
183 	if (ret > 0) {
184 		ret = -ENOENT;
195 		ret = -ENOENT;
209 		ret = -ENOENT;
215 		ret = btrfs_del_item(trans, uuid_root, path);
227 	return ret;
234 	int ret;
239 		ret = PTR_ERR(trans);
243 	ret = btrfs_uuid_tree_remove(trans, uuid, type, subid);
247 	return ret;
261 	int ret = 0;
270 		ret = PTR_ERR(subvol_root);
271 		if (ret == -ENOENT)
272 			ret = 1;
279 			ret = 1;
284 			ret = 1;
289 	return ret;
297 	int ret = 0;
305 		ret = -ENOMEM;
314 	ret = btrfs_search_forward(root, &key, path, BTRFS_OLDEST_GENERATION);
315 	if (ret) {
316 		if (ret > 0)
317 			ret = 0;
323 			ret = -EINTR;
353 			ret = btrfs_check_uuid_tree_entry(fs_info, uuid,
355 			if (ret < 0)
357 			if (ret > 0) {
359 				ret = btrfs_uuid_iter_rem(root, uuid, key.type,
361 				if (ret == 0) {
371 				if (ret < 0 && ret != -ENOENT)
381 		ret = btrfs_next_item(root, path);
382 		if (ret == 0)
384 		else if (ret > 0)
385 			ret = 0;
391 	return ret;