[PATCH 6/7] xfs: check parent pointer xattrs when scrubbing

Darrick J. Wong
2024-04-10T01:03:26Z

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

Check parent pointer xattrs as part of scrubbing xattrs.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
fs/xfs/scrub/attr.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/fs/xfs/scrub/attr.c b/fs/xfs/scrub/attr.c
index fe51a17661831..b91234bbd58aa 100644
--- a/fs/xfs/scrub/attr.c
+++ b/fs/xfs/scrub/attr.c
@@ -17,6 +17,7 @@
#include "xfs_attr.h"
#include "xfs_attr_leaf.h"
#include "xfs_attr_sf.h"
+#include "xfs_parent.h"
#include "scrub/scrub.h"
#include "scrub/common.h"
#include "scrub/dabtree.h"
@@ -208,6 +209,13 @@ xchk_xattr_actor(
return -ECANCELED;
}

+ /* Check parent pointer record. */
+ if ((attr_flags & XFS_ATTR_PARENT) &&
+ !xfs_parent_valuecheck(sc->mp, value, valuelen)) {
+ xchk_fblock_set_corrupt(sc, XFS_ATTR_FORK, args.blkno);
+ return -ECANCELED;
+ }
+
/*
* Local and shortform xattr values are stored in the attr leaf block,
* so we don't need to retrieve the value from a remote block to detect