dofileread
return (dofileread(fd, fp, SCARG(uap, buf), SCARG(uap, nbyte),
return dofileread(fd, fp, SCARG(uap, buf), SCARG(uap, nbyte),
error = dofileread(pap->fpfd, fp, buf, BUFSIZE,
int dofileread(int, struct file *, void *, size_t,