[PATCH 37/43] xfs: walk the rt reference count tree when rebuilding rmap

Darrick J. Wong
2024-12-13T01:19:54Z

From: Darrick J. Wong <djwong@kernel.org>

When we're rebuilding the data device rmap, if we encounter a "refcount"
format fork, we have to walk the (realtime) refcount btree inode to
build the appropriate mappings.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
---
fs/xfs/scrub/rmap_repair.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/fs/xfs/scrub/rmap_repair.c b/fs/xfs/scrub/rmap_repair.c
index c2c7b76cc25ab8..f5f73078ffe29d 100644
--- a/fs/xfs/scrub/rmap_repair.c
+++ b/fs/xfs/scrub/rmap_repair.c
@@ -33,6 +33,7 @@
#include "xfs_ag.h"
#include "xfs_rtrmap_btree.h"
#include "xfs_rtgroup.h"
+#include "xfs_rtrefcount_btree.h"
#include "scrub/xfs_scrub.h"
#include "scrub/scrub.h"
#include "scrub/common.h"
@@ -519,6 +520,9 @@ xrep_rmap_scan_meta_btree(
case XFS_METAFILE_RTRMAP:
type = XFS_RTGI_RMAP;
break;
+ case XFS_METAFILE_RTREFCOUNT:
+ type = XFS_RTGI_REFCOUNT;
+ break;
default:
ASSERT(0);
return -EFSCORRUPTED;
@@ -545,6 +549,9 @@ xrep_rmap_scan_meta_btree(
case XFS_METAFILE_RTRMAP:
cur = xfs_rtrmapbt_init_cursor(sc->tp, rtg);
break;
+ case XFS_METAFILE_RTREFCOUNT:
+ cur = xfs_rtrefcountbt_init_cursor(sc->tp, rtg);
+ break;
default:
ASSERT(0);
error = -EFSCORRUPTED;