+/* fsck.c */
+off_t exfat_c2o(struct exfat *exfat, unsigned int clus);
+int get_next_clus(struct exfat *exfat, struct exfat_inode *node,
+ clus_t clus, clus_t *next);
+
+/* de_iter.c */
+int exfat_de_iter_init(struct exfat_de_iter *iter, struct exfat *exfat,
+ struct exfat_inode *dir);
+int exfat_de_iter_get(struct exfat_de_iter *iter,
+ int ith, struct exfat_dentry **dentry);
+int exfat_de_iter_get_dirty(struct exfat_de_iter *iter,
+ int ith, struct exfat_dentry **dentry);
+int exfat_de_iter_flush(struct exfat_de_iter *iter);
+int exfat_de_iter_advance(struct exfat_de_iter *iter, int skip_dentries);
+off_t exfat_de_iter_file_offset(struct exfat_de_iter *iter);
+