[PATCH] repair: fix the call to search_rt_dup_extent in scan_bmapbt

[Christoph Hellwig <hch@lst.de>]

search_rt_dup_extent expects an RT extent number and not a fsbno.
Convert the units before the call.  Without this we are unlikely
to ever found a legit duplicate extent on the RT subvolume because
the search will always be off the end.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 repair/scan.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/repair/scan.c b/repair/scan.c
index 27a33286a..7a0587615 100644
--- a/repair/scan.c
+++ b/repair/scan.c
@@ -402,8 +402,10 @@ _("bad state %d, inode %" PRIu64 " bmap block 0x%" PRIx64 "\n"),
 					XFS_FSB_TO_AGBNO(mp, bno) + 1))
 				return(1);
 		} else  {
-			if (search_rt_dup_extent(mp, bno))
-				return(1);
+			xfs_rtblock_t	ext = bno / mp->m_sb.sb_rextsize;
+
+			if (search_rt_dup_extent(mp, ext))
+				return 1;
 		}
 	}
 	(*tot)++;
-- 
2.39.2