upos32            389 fs/compat_ioctl.c 	struct mtpos32 __user *upos32;
upos32            413 fs/compat_ioctl.c 		upos32 = argp;
upos32            414 fs/compat_ioctl.c 		err = convert_in_user(&pos->mt_blkno, &upos32->mt_blkno);