Fix an off-by-one error in the realtime bitmap "is used" cross-reference
helper function if the realtime extent size is a single block.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
startext = fsbno;
endext = fsbno + len - 1;
do_div(startext, sc->mp->m_sb.sb_rextsize);
- if (do_div(endext, sc->mp->m_sb.sb_rextsize))
- endext++;
- extcount = endext - startext;
+ do_div(endext, sc->mp->m_sb.sb_rextsize);
+ extcount = endext - startext + 1;
xfs_ilock(sc->mp->m_rbmip, XFS_ILOCK_SHARED | XFS_ILOCK_RTBITMAP);
error = xfs_rtalloc_extent_is_free(sc->mp, sc->tp, startext, extcount,
&is_free);