[28/38] xfs: cross-reference realtime bitmap to realtime rmapbt scrubber

Commit Message

Darrick J. Wong Dec. 30, 2022, 10:18 p.m. UTC

From: Darrick J. Wong <[e-mail]>

When we're checking the realtime rmap btree entries, cross-reference
those entries with the realtime bitmap too.

Signed-off-by: Darrick J. Wong <[e-mail]>
---
 fs/xfs/scrub/rtrmap.c |   18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

Patch

diff --git a/fs/xfs/scrub/rtrmap.c b/fs/xfs/scrub/rtrmap.c
index e60b454b39f3..72fc47cc25f0 100644
--- a/fs/xfs/scrub/rtrmap.c
+++ b/fs/xfs/scrub/rtrmap.c
@@ -150,6 +150,23 @@  xchk_rtrmapbt_check_mergeable(
 	memcpy(&cr->prev_rec, irec, sizeof(struct xfs_rmap_irec));
 }
 
+/* Cross-reference with other metadata. */
+STATIC void
+xchk_rtrmapbt_xref(
+	struct xfs_scrub	*sc,
+	struct xfs_rmap_irec	*irec)
+{
+	xfs_rtblock_t		rtbno;
+
+	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		return;
+
+	rtbno = xfs_rgbno_to_rtb(sc->mp, sc->sr.rtg->rtg_rgno,
+			irec->rm_startblock);
+
+	xchk_xref_is_used_rt_space(sc, rtbno, irec->rm_blockcount);
+}
+
 /* Scrub a realtime rmapbt record. */
 STATIC int
 xchk_rtrmapbt_rec(
@@ -170,6 +187,7 @@  xchk_rtrmapbt_rec(
 
 	xchk_rtrmapbt_check_mergeable(bs, cr, &irec);
 	xchk_rtrmapbt_check_overlapping(bs, cr, &irec);
+	xchk_rtrmapbt_xref(bs->sc, &irec);
 	return 0;
 }