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-rw-r--r--fs/xfs/scrub/rtbitmap.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/xfs/scrub/rtbitmap.c b/fs/xfs/scrub/rtbitmap.c
index 665d4bbb17cc..dbe115b075f7 100644
--- a/fs/xfs/scrub/rtbitmap.c
+++ b/fs/xfs/scrub/rtbitmap.c
@@ -141,9 +141,8 @@ xchk_xref_is_used_rt_space(
 	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);