-int ext4fs_filename_check(char *filename);
-int ext4fs_write(const char *fname, unsigned char *buffer,
- unsigned long sizebytes);
+int ext4fs_filename_unlink(char *filename);
+int ext4fs_write(const char *fname, const char *buffer,
+ unsigned long sizebytes, int type);
+int ext4_write_file(const char *filename, void *buf, loff_t offset, loff_t len,
+ loff_t *actwrite);
+int ext4fs_create_link(const char *target, const char *fname);