xfs_rtbitmap_blockcount
xfs_filblks_t xfs_rtbitmap_blockcount(struct xfs_mount *mp);
rtb->rbmblocks = xfs_rtbitmap_blockcount(mp);
rts->rbmblocks = xfs_rtbitmap_blockcount(mp);
if (XFS_FSB_TO_B(mp, xfs_rtbitmap_blockcount(mp)) !=
nmp->m_sb.sb_rbmblocks = xfs_rtbitmap_blockcount(nmp);