ocfs2: Remove open coded readdir()

ocfs2_queue_orphans() has an open coded readdir loop which can easily just
use a directory accessor function.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Reviewed-by: Joel Becker <joel.becker@oracle.com>

fs/ocfs2/dir.c

@@ -81,10 +81,10 @@ static int ocfs2_do_extend_dir(struct super_block *sb,
 			       struct ocfs2_alloc_context *meta_ac,
 			       struct buffer_head **new_bh);
 
-int ocfs2_check_dir_entry(struct inode * dir,
-			  struct ocfs2_dir_entry * de,
-			  struct buffer_head * bh,
-			  unsigned long offset)
+static int ocfs2_check_dir_entry(struct inode * dir,
+				 struct ocfs2_dir_entry * de,
+				 struct buffer_head * bh,
+				 unsigned long offset)
 {
 	const char *error_msg = NULL;
 	const int rlen = le16_to_cpu(de->rec_len);
@@ -531,6 +531,26 @@ out:
 	return stored;
 }
 
+/*
+ * This is intended to be called from inside other kernel functions,
+ * so we fake some arguments.
+ */
+int ocfs2_dir_foreach(struct inode *inode, loff_t *f_pos, void *priv,
+		      filldir_t filldir)
+{
+	int ret = 0;
+	unsigned long version = inode->i_version;
+
+	while (*f_pos < i_size_read(inode)) {
+		ret = ocfs2_dir_foreach_blk(inode, &version, f_pos, priv,
+					    filldir);
+		if (ret)
+			break;
+	}
+
+	return 0;
+}
+
 /*
  * ocfs2_readdir()
  *