XQM_CMD
#define Q_XQUOTAON XQM_CMD(1) /* enable accounting/enforcement */
#define Q_XQUOTAOFF XQM_CMD(2) /* disable accounting/enforcement */
#define Q_XGETQUOTA XQM_CMD(3) /* get disk limits and usage */
#define Q_XSETQLIM XQM_CMD(4) /* set disk limits */
#define Q_XGETQSTAT XQM_CMD(5) /* get quota subsystem status */
#define Q_XQUOTARM XQM_CMD(6) /* free disk space used by dquots */
#define Q_XQUOTASYNC XQM_CMD(7) /* delalloc flush, updates dquots */
#define Q_XGETQSTATV XQM_CMD(8) /* newer version of get quota */
#define Q_XGETNEXTQUOTA XQM_CMD(9) /* get disk limits and usage >= ID */