[PATCH 09/23] xfs: check parent pointer xattrs when scrubbing

["Darrick J. Wong" <djwong@xxxxxxxxxx>]

From: Darrick J. Wong <djwong@xxxxxxxxxx>

Check parent pointer xattrs as part of scrubbing xattrs.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 fs/xfs/scrub/attr.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)


diff --git a/fs/xfs/scrub/attr.c b/fs/xfs/scrub/attr.c
index 2ad109fdd1998..46cc284deaac9 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"
@@ -205,6 +206,19 @@ xchk_xattr_actor(
 		return -ECANCELED;
 	}
 
+	/* Check parent pointer geometry. */
+	if (attr_flags & XFS_ATTR_PARENT) {
+		if (!xfs_has_parent(sc->mp)) {
+			xchk_fblock_set_corrupt(sc, XFS_ATTR_FORK, args.blkno);
+			return -ECANCELED;
+		}
+
+		if (!xfs_parent_valuecheck(sc->mp, value, valuelen)) {
+			xchk_fblock_set_corrupt(sc, XFS_ATTR_FORK, args.blkno);
+			return -ECANCELED;
+		}
+	}
+
 	/* Does this name make sense? */
 	if (!xfs_attr_namecheck(sc->mp, name, namelen, attr_flags)) {
 		xchk_fblock_set_corrupt(sc, XFS_ATTR_FORK, args.blkno);