* grub-core/fs/cpio.c (grub_cpio_data): Use grub_off_t for offsets. (canonicalize): New function. (grub_cpio_find_file): Use canonicalize. Store offs in grub_disk_addr_t. (grub_cpio_dir): Use grub_disk_addr_t. (grub_cpio_open): Likewise.