int qtree_delete_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
{
	uint tmp = QT_TREEOFF;

	if (!dquot->dq_off)	/* Even not allocated? */
		return 0;
	return remove_tree(info, dquot, &tmp, 0);
}
int qtree_delete_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot)
{
	uint tmp = QT_TREEOFF;

	if (!dquot->dq_off)	 
		return 0;
	return remove_tree(info, dquot, &tmp, 0);
}