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xfs: fix rtrmap cross-referencing elision logic

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LOLLM points out that xchk_bmap_xref_rmap_cow skips the cross-reference
if the data-section rmapbt cursor is not present.  However, this is
broken for realtime file data fork scanning, because they will have an
rtrmapbt cursor and not an rmapbt cursor.  Fix the behavior by removing
the cursor checks because xchk_bmap_get_rmap already accounts for that.

Cc: stable@vger.kernel.org # v6.14
Fixes: 037a44d827 ("xfs: cross-reference the realtime rmapbt")
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Assisted-by: LOLLM # finding obvious bugs
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
This commit is contained in:
Darrick J. Wong
2026-09-11 08:43:55 +02:00
committed by Carlos Maiolino
parent 1ee2ce797c
commit 3bdbf472a6
1 changed files with 1 additions and 1 deletions
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fs/xfs/scrub/bmap.c
+1 -1
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@@ -274,7 +274,7 @@ xchk_bmap_xref_rmap_cow(
unsigned long long rmap_end;
uint64_t owner = XFS_RMAP_OWN_COW;
if (!info->sc->sa.rmap_cur || xchk_skip_xref(info->sc->sm))
if (xchk_skip_xref(info->sc->sm))
return;
/* Find the rmap record for this irec. */