xfs: call xfs_dinode_verify from xfs_inode_from_disk

Keep the code dealing with the dinode together, and also ensure we verify
the dinode in the owner change log recovery case as well.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NBrian Foster <bfoster@redhat.com>
Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com>

Documentation/filesystems/xfs-self-describing-metadata.txt

@@ -337,11 +337,11 @@ buffer.
 
 The structure of the verifiers and the identifiers checks is very similar to the
 buffer code described above. The only difference is where they are called. For
-example, inode read verification is done in xfs_iread() when the inode is first
-read out of the buffer and the struct xfs_inode is instantiated. The inode is
-already extensively verified during writeback in xfs_iflush_int, so the only
-addition here is to add the LSN and CRC to the inode as it is copied back into
-the buffer.
+example, inode read verification is done in xfs_inode_from_disk() when the inode
+is first read out of the buffer and the struct xfs_inode is instantiated. The
+inode is already extensively verified during writeback in xfs_iflush_int, so the
+only addition here is to add the LSN and CRC to the inode as it is copied back
+into the buffer.
 
 XXX: inode unlinked list modification doesn't recalculate the inode CRC! None of
 the unlinked list modifications check or update CRCs, neither during unlink nor

fs/xfs/libxfs/xfs_inode_buf.c

@@ -188,10 +188,18 @@ xfs_inode_from_disk(
 	struct xfs_icdinode	*to = &ip->i_d;
 	struct inode		*inode = VFS_I(ip);
 	int			error;
+	xfs_failaddr_t		fa;
 
 	ASSERT(ip->i_cowfp == NULL);
 	ASSERT(ip->i_afp == NULL);
 
+	fa = xfs_dinode_verify(ip->i_mount, ip->i_ino, from);
+	if (fa) {
+		xfs_inode_verifier_error(ip, -EFSCORRUPTED, "dinode", from,
+				sizeof(*from), fa);
+		return -EFSCORRUPTED;
+	}
+
 	/*
 	 * First get the permanent information that is needed to allocate an
 	 * inode. If the inode is unused, mode is zero and we shouldn't mess
@@ -627,7 +635,6 @@ xfs_iread(
 {
 	xfs_buf_t	*bp;
 	xfs_dinode_t	*dip;
-	xfs_failaddr_t	fa;
 	int		error;
 
 	/*
@@ -652,15 +659,6 @@ xfs_iread(
 	if (error)
 		return error;
 
-	/* even unallocated inodes are verified */
-	fa = xfs_dinode_verify(mp, ip->i_ino, dip);
-	if (fa) {
-		xfs_inode_verifier_error(ip, -EFSCORRUPTED, "dinode", dip,
-				sizeof(*dip), fa);
-		error = -EFSCORRUPTED;
-		goto out_brelse;
-	}
-
 	error = xfs_inode_from_disk(ip, dip);
 	if (error)
 		goto out_brelse;