xfs_estimate_freecounter
if (xfs_estimate_freecounter(mp, XC_FREE_BLOCKS) <
.freedata = xfs_estimate_freecounter(mp, XC_FREE_BLOCKS) -
.freertx = xfs_estimate_freecounter(mp, XC_FREE_RTEXTENTS),
freesp = xfs_estimate_freecounter(mp, idx);
available = xfs_estimate_freecounter(mp, XC_FREE_RTAVAILABLE);
free = xfs_estimate_freecounter(mp, XC_FREE_RTEXTENTS);