25 	int ret;  in btrfs_uuid_tree_lookup()  local
34 		ret = -ENOENT;  in btrfs_uuid_tree_lookup()
40 		ret = -ENOMEM;  in btrfs_uuid_tree_lookup()
45 	ret = btrfs_search_slot(NULL, uuid_root, &key, path, 0, 0);  in btrfs_uuid_tree_lookup()
46 	if (ret < 0) {  in btrfs_uuid_tree_lookup()
48 	} else if (ret > 0) {  in btrfs_uuid_tree_lookup()
49 		ret = -ENOENT;  in btrfs_uuid_tree_lookup()
57 	ret = -ENOENT;  in btrfs_uuid_tree_lookup()
70 			ret = 0;  in btrfs_uuid_tree_lookup()
79 	return ret;  in btrfs_uuid_tree_lookup()
87 	int ret;  in btrfs_uuid_tree_add()  local
95 	ret = btrfs_uuid_tree_lookup(uuid_root, uuid, type, subid_cpu);  in btrfs_uuid_tree_add()
96 	if (ret != -ENOENT)  in btrfs_uuid_tree_add()
97 		return ret;  in btrfs_uuid_tree_add()
100 		ret = -EINVAL;  in btrfs_uuid_tree_add()
108 		ret = -ENOMEM;  in btrfs_uuid_tree_add()
112 	ret = btrfs_insert_empty_item(trans, uuid_root, path, &key,  in btrfs_uuid_tree_add()
114 	if (ret >= 0) {  in btrfs_uuid_tree_add()
119 	} else if (ret == -EEXIST) {  in btrfs_uuid_tree_add()
132 			   ret, (unsigned long long)key.objectid,  in btrfs_uuid_tree_add()
137 	ret = 0;  in btrfs_uuid_tree_add()
144 	return ret;  in btrfs_uuid_tree_add()
152 	int ret;  in btrfs_uuid_tree_remove()  local
164 		ret = -EINVAL;  in btrfs_uuid_tree_remove()
172 		ret = -ENOMEM;  in btrfs_uuid_tree_remove()
176 	ret = btrfs_search_slot(trans, uuid_root, &key, path, -1, 1);  in btrfs_uuid_tree_remove()
177 	if (ret < 0) {  in btrfs_uuid_tree_remove()
179 			   ret);  in btrfs_uuid_tree_remove()
182 	if (ret > 0) {  in btrfs_uuid_tree_remove()
183 		ret = -ENOENT;  in btrfs_uuid_tree_remove()
194 		ret = -ENOENT;  in btrfs_uuid_tree_remove()
208 		ret = -ENOENT;  in btrfs_uuid_tree_remove()
214 		ret = btrfs_del_item(trans, uuid_root, path);  in btrfs_uuid_tree_remove()
226 	return ret;  in btrfs_uuid_tree_remove()
233 	int ret;  in btrfs_uuid_iter_rem()  local
238 		ret = PTR_ERR(trans);  in btrfs_uuid_iter_rem()
242 	ret = btrfs_uuid_tree_remove(trans, uuid, type, subid);  in btrfs_uuid_iter_rem()
246 	return ret;  in btrfs_uuid_iter_rem()
260 	int ret = 0;  in btrfs_check_uuid_tree_entry()  local
269 		ret = PTR_ERR(subvol_root);  in btrfs_check_uuid_tree_entry()
270 		if (ret == -ENOENT)  in btrfs_check_uuid_tree_entry()
271 			ret = 1;  in btrfs_check_uuid_tree_entry()
278 			ret = 1;  in btrfs_check_uuid_tree_entry()
283 			ret = 1;  in btrfs_check_uuid_tree_entry()
288 	return ret;  in btrfs_check_uuid_tree_entry()
296 	int ret = 0;  in btrfs_uuid_tree_iterate()  local
304 		ret = -ENOMEM;  in btrfs_uuid_tree_iterate()
313 	ret = btrfs_search_forward(root, &key, path, BTRFS_OLDEST_GENERATION);  in btrfs_uuid_tree_iterate()
314 	if (ret) {  in btrfs_uuid_tree_iterate()
315 		if (ret > 0)  in btrfs_uuid_tree_iterate()
316 			ret = 0;  in btrfs_uuid_tree_iterate()
322 			ret = -EINTR;  in btrfs_uuid_tree_iterate()
352 			ret = btrfs_check_uuid_tree_entry(fs_info, uuid,  in btrfs_uuid_tree_iterate()
354 			if (ret < 0)  in btrfs_uuid_tree_iterate()
356 			if (ret > 0) {  in btrfs_uuid_tree_iterate()
358 				ret = btrfs_uuid_iter_rem(root, uuid, key.type,  in btrfs_uuid_tree_iterate()
360 				if (ret == 0) {  in btrfs_uuid_tree_iterate()
370 				if (ret < 0 && ret != -ENOENT)  in btrfs_uuid_tree_iterate()
380 		ret = btrfs_next_item(root, path);  in btrfs_uuid_tree_iterate()
381 		if (ret == 0)  in btrfs_uuid_tree_iterate()
383 		else if (ret > 0)  in btrfs_uuid_tree_iterate()
384 			ret = 0;  in btrfs_uuid_tree_iterate()
390 	return ret;  in btrfs_uuid_tree_iterate()