diff mbox series

[23/29] xfs: fix di_metatype field of inodes that won't load

Message ID 172919069847.3451313.2995475781072114353.stgit@frogsfrogsfrogs (mailing list archive)
State New
Headers show
Series [01/29] xfs: constify the xfs_sb predicates | expand

Commit Message

Darrick J. Wong Oct. 17, 2024, 6:58 p.m. UTC 
From: Darrick J. Wong <djwong@kernel.org>

Make sure that the di_metatype field is at least set plausibly so that
later scrubbers could set the real type.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/scrub/inode.c        |    9 +++++++--
 fs/xfs/scrub/inode_repair.c |    6 +++++-
 2 files changed, 12 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
index ac5c5641653392..25ee66e7649d40 100644
--- a/fs/xfs/scrub/inode.c
+++ b/fs/xfs/scrub/inode.c
@@ -443,8 +443,13 @@  xchk_dinode(
 		break;
 	case 2:
 	case 3:
-		if (!xfs_dinode_is_metadir(dip) && dip->di_metatype)
-			xchk_ino_set_corrupt(sc, ino);
+		if (xfs_dinode_is_metadir(dip)) {
+			if (be16_to_cpu(dip->di_metatype) >= XFS_METAFILE_MAX)
+				xchk_ino_set_corrupt(sc, ino);
+		} else {
+			if (dip->di_metatype != 0)
+				xchk_ino_set_corrupt(sc, ino);
+		}
 
 		if (dip->di_mode == 0 && sc->ip)
 			xchk_ino_set_corrupt(sc, ino);
diff --git a/fs/xfs/scrub/inode_repair.c b/fs/xfs/scrub/inode_repair.c
index eaa1e1afe3a4d0..5a58ddd27bd2f5 100644
--- a/fs/xfs/scrub/inode_repair.c
+++ b/fs/xfs/scrub/inode_repair.c
@@ -526,8 +526,12 @@  xrep_dinode_nlinks(
 		return;
 	}
 
-	if (!xfs_dinode_is_metadir(dip))
+	if (xfs_dinode_is_metadir(dip)) {
+		if (be16_to_cpu(dip->di_metatype) >= XFS_METAFILE_MAX)
+			dip->di_metatype = cpu_to_be16(XFS_METAFILE_UNKNOWN);
+	} else {
 		dip->di_metatype = 0;
+	}
 }
 
 /* Fix any conflicting flags that the verifiers complain about. */