fs/btrfs/qgroup.c

389 	struct btrfs_root *quota_root = fs_info->quota_root;
397 	if (!fs_info->quota_root)
424 	ret = btrfs_search_slot_for_read(quota_root, &key, path, 1, 1);
510 		ret = btrfs_next_item(quota_root, path);
524 	ret = btrfs_search_slot_for_read(quota_root, &key, path, 1, 0);
560 		ret = btrfs_next_item(quota_root, path);
625  * quota_root to be null with qgroup_lock held before, so it is safe to clean
654 	struct btrfs_root *quota_root = trans->fs_info->quota_root;
666 	ret = btrfs_insert_empty_item(trans, quota_root, path, &key, 0);
678 	struct btrfs_root *quota_root = trans->fs_info->quota_root;
690 	ret = btrfs_search_slot(trans, quota_root, &key, path, -1, 1);
699 	ret = btrfs_del_item(trans, quota_root, path);
706 			   struct btrfs_root *quota_root, u64 qgroupid)
715 	if (btrfs_is_testing(quota_root->fs_info))
732 	ret = btrfs_insert_empty_item(trans, quota_root, path, &key,
751 	ret = btrfs_insert_empty_item(trans, quota_root, path, &key,
776 	struct btrfs_root *quota_root = trans->fs_info->quota_root;
787 	ret = btrfs_search_slot(trans, quota_root, &key, path, -1, 1);
796 	ret = btrfs_del_item(trans, quota_root, path);
803 	ret = btrfs_search_slot(trans, quota_root, &key, path, -1, 1);
812 	ret = btrfs_del_item(trans, quota_root, path);
822 	struct btrfs_root *quota_root = trans->fs_info->quota_root;
838 	ret = btrfs_search_slot(trans, quota_root, &key, path, 0, 1);
865 	struct btrfs_root *quota_root = fs_info->quota_root;
884 	ret = btrfs_search_slot(trans, quota_root, &key, path, 0, 1);
910 	struct btrfs_root *quota_root = fs_info->quota_root;
926 	ret = btrfs_search_slot(trans, quota_root, &key, path, 0, 1);
998 	struct btrfs_root *quota_root;
1016 	 * and relock qgroup_ioctl_lock before setting fs_info->quota_root
1028 	if (fs_info->quota_root)
1073 	if (fs_info->quota_root)
1082 	quota_root = btrfs_create_tree(trans, BTRFS_QUOTA_TREE_OBJECTID);
1083 	if (IS_ERR(quota_root)) {
1084 		ret =  PTR_ERR(quota_root);
1100 	ret = btrfs_insert_empty_item(trans, quota_root, path, &key,
1145 			/* Release locks on tree_root before we access quota_root */
1157 			ret = add_qgroup_item(trans, quota_root,
1202 	ret = add_qgroup_item(trans, quota_root, BTRFS_FS_TREE_OBJECTID);
1246 	fs_info->quota_root = quota_root;
1283 		btrfs_put_root(quota_root);
1334 	struct btrfs_root *quota_root;
1351 	if (!fs_info->quota_root)
1397 	if (!fs_info->quota_root)
1401 	quota_root = fs_info->quota_root;
1402 	fs_info->quota_root = NULL;
1410 	ret = btrfs_clean_quota_tree(trans, quota_root);
1416 	ret = btrfs_del_root(trans, &quota_root->root_key);
1423 	list_del(&quota_root->dirty_list);
1426 	btrfs_tree_lock(quota_root->node);
1427 	btrfs_clear_buffer_dirty(trans, quota_root->node);
1428 	btrfs_tree_unlock(quota_root->node);
1429 	btrfs_free_tree_block(trans, btrfs_root_id(quota_root),
1430 			      quota_root->node, 0, 1);
1432 	btrfs_put_root(quota_root);
1572 	if (!fs_info->quota_root) {
1632 	if (!fs_info->quota_root) {
1692 	struct btrfs_root *quota_root;
1701 	if (!fs_info->quota_root) {
1705 	quota_root = fs_info->quota_root;
1718 	ret = add_qgroup_item(trans, quota_root, qgroupid);
1751 	if (!fs_info->quota_root) {
1815 	if (!fs_info->quota_root) {
3013 	if (!fs_info->quota_root)
3207 	struct btrfs_root *quota_root;
3243 	quota_root = fs_info->quota_root;
3244 	if (!quota_root) {
3278 	ret = add_qgroup_item(trans, quota_root, objectid);
3487 	if (!fs_info->quota_root)
3548 	if (!fs_info->quota_root)
3758 	 * fs_info->quota_root to NULL and cleared BTRFS_FS_QUOTA_ENABLED at
3762 		trans = btrfs_start_transaction(fs_info->quota_root, 1);
4449 	if (!fs_info->quota_root)