XFS_DAENTER_SPACE_RES
nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
return XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) +
(XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \
(XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v))