[PATCH 42/58] xfs_repair: refactor root directory initialization

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

From: Darrick J. Wong <djwong@xxxxxxxxxx>

Refactor root directory initialization into a separate function we can
call for both the root dir and the metadir.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 repair/phase6.c |   63 +++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 40 insertions(+), 23 deletions(-)


diff --git a/repair/phase6.c b/repair/phase6.c
index e01e81ae014..017c46f43af 100644
--- a/repair/phase6.c
+++ b/repair/phase6.c
@@ -773,27 +773,27 @@ mk_rsumino(xfs_mount_t *mp)
 	libxfs_irele(ip);
 }
 
-/*
- * makes a new root directory.
- */
-static void
-mk_root_dir(xfs_mount_t *mp)
+/* Initialize a root directory. */
+static int
+init_fs_root_dir(
+	struct xfs_mount	*mp,
+	xfs_ino_t		ino,
+	mode_t			mode,
+	struct xfs_inode	**ipp)
 {
-	xfs_trans_t	*tp;
-	xfs_inode_t	*ip;
-	int		i;
-	int		error;
-	const mode_t	mode = 0755;
-	ino_tree_node_t	*irec;
+	struct xfs_trans	*tp;
+	struct xfs_inode	*ip = NULL;
+	struct ino_tree_node	*irec;
+	int			error;
 
-	ip = NULL;
-	i = -libxfs_trans_alloc(mp, &M_RES(mp)->tr_ichange, 10, 0, 0, &tp);
-	if (i)
-		res_failed(i);
+	error = -libxfs_trans_alloc(mp, &M_RES(mp)->tr_ichange, 10, 0, 0, &tp);
+	if (error)
+		return error;
 
-	error = -libxfs_iget(mp, tp, mp->m_sb.sb_rootino, 0, &ip);
+	error = -libxfs_iget(mp, tp, ino, 0, &ip);
 	if (error) {
-		do_error(_("could not iget root inode -- error - %d\n"), error);
+		libxfs_trans_cancel(tp);
+		return error;
 	}
 
 	/* Reset the root directory. */
@@ -802,14 +802,31 @@ mk_root_dir(xfs_mount_t *mp)
 
 	error = -libxfs_trans_commit(tp);
 	if (error)
-		do_error(_("%s: commit failed, error %d\n"), __func__, error);
+		return error;
+
+	irec = find_inode_rec(mp, XFS_INO_TO_AGNO(mp, ino),
+				XFS_INO_TO_AGINO(mp, ino));
+	set_inode_isadir(irec, XFS_INO_TO_AGINO(mp, ino) - irec->ino_startnum);
+	*ipp = ip;
+	return 0;
+}
+
+/*
+ * makes a new root directory.
+ */
+static void
+mk_root_dir(xfs_mount_t *mp)
+{
+	struct xfs_inode	*ip = NULL;
+	int			error;
+
+	error = init_fs_root_dir(mp, mp->m_sb.sb_rootino, 0755, &ip);
+	if (error)
+		do_error(
+	_("Could not reinitialize root directory inode, error %d\n"),
+			error);
 
 	libxfs_irele(ip);
-
-	irec = find_inode_rec(mp, XFS_INO_TO_AGNO(mp, mp->m_sb.sb_rootino),
-				XFS_INO_TO_AGINO(mp, mp->m_sb.sb_rootino));
-	set_inode_isadir(irec, XFS_INO_TO_AGINO(mp, mp->m_sb.sb_rootino) -
-				irec->ino_startnum);
 }
 
 /*