179 	const struct kvec *tail = xdr->tail;  in xdr_buf_to_bvec()  local
204 	if (tail->iov_len) {  in xdr_buf_to_bvec()
205 		bvec_set_virt(bvec, tail->iov_base, tail->iov_len);  in xdr_buf_to_bvec()
231 	struct kvec *tail = xdr->tail;  in xdr_inline_pages()  local
241 	tail->iov_base = buf + offset;  in xdr_inline_pages()
242 	tail->iov_len = buflen - offset;  in xdr_inline_pages()
501 		xdr_buf_iov_zero(buf->tail, pgbase - buf->page_len, len);  in xdr_buf_pages_zero()
505 		xdr_buf_iov_zero(buf->tail, 0, pgbase + len - buf->page_len);  in xdr_buf_pages_zero()
561 	struct kvec *tail = buf->tail;  in xdr_buf_try_expand()  local
562 	unsigned int sum = head->iov_len + buf->page_len + tail->iov_len;  in xdr_buf_try_expand()
579 		tail->iov_len += free_space;  in xdr_buf_try_expand()
588 	const struct kvec *tail = buf->tail;  in xdr_buf_tail_copy_right()  local
591 	if (to >= tail->iov_len)  in xdr_buf_tail_copy_right()
593 	if (len + to > tail->iov_len)  in xdr_buf_tail_copy_right()
594 		len = tail->iov_len - to;  in xdr_buf_tail_copy_right()
595 	memmove(tail->iov_base + to, tail->iov_base + base, len);  in xdr_buf_tail_copy_right()
602 	const struct kvec *tail = buf->tail;  in xdr_buf_pages_copy_right()  local
613 		if (tail->iov_len >= len + tato)  in xdr_buf_pages_copy_right()
615 		else if (tail->iov_len > tato)  in xdr_buf_pages_copy_right()
616 			talen = tail->iov_len - tato;  in xdr_buf_pages_copy_right()
620 		if (talen > tail->iov_len)  in xdr_buf_pages_copy_right()
621 			talen = tail->iov_len;  in xdr_buf_pages_copy_right()
625 	_copy_from_pages(tail->iov_base + tato, buf->pages,  in xdr_buf_pages_copy_right()
636 	const struct kvec *tail = buf->tail;  in xdr_buf_head_copy_right()  local
665 	if (talen + tato > tail->iov_len)  in xdr_buf_head_copy_right()
666 		talen = tail->iov_len > tato ? tail->iov_len - tato : 0;  in xdr_buf_head_copy_right()
667 	memcpy(tail->iov_base + tato, head->iov_base + base, talen);  in xdr_buf_head_copy_right()
682 	const struct kvec *tail = buf->tail;  in xdr_buf_tail_shift_right()  local
684 	if (base >= tail->iov_len || !shift || !len)  in xdr_buf_tail_shift_right()
727 	const struct kvec *tail = buf->tail;  in xdr_buf_tail_copy_left()  local
729 	if (base >= tail->iov_len)  in xdr_buf_tail_copy_left()
731 	if (len > tail->iov_len - base)  in xdr_buf_tail_copy_left()
732 		len = tail->iov_len - base;  in xdr_buf_tail_copy_left()
745 		memcpy(head->iov_base + hdto, tail->iov_base + base, hdlen);  in xdr_buf_tail_copy_left()
759 			       tail->iov_base + base, pglen);  in xdr_buf_tail_copy_left()
765 	memmove(tail->iov_base + base - shift, tail->iov_base + base, len);  in xdr_buf_tail_copy_left()
968 	int scratch_len = buf->buflen - buf->page_len - buf->tail[0].iov_len;  in xdr_init_encode()
1189 	struct kvec *tail = buf->tail;  in xdr_truncate_encode()  local
1199 	fraglen = min_t(int, buf->len - len, tail->iov_len);  in xdr_truncate_encode()
1200 	tail->iov_len -= fraglen;  in xdr_truncate_encode()
1202 	if (tail->iov_len) {  in xdr_truncate_encode()
1203 		xdr->p = tail->iov_base + tail->iov_len;  in xdr_truncate_encode()
1294 	struct kvec *tail = buf->tail;  in xdr_write_pages()  local
1300 	tail->iov_base = xdr->p;  in xdr_write_pages()
1301 	tail->iov_len = 0;  in xdr_write_pages()
1302 	xdr->iov = tail;  in xdr_write_pages()
1308 		tail->iov_base = (char *)xdr->p + (len & 3);  in xdr_write_pages()
1309 		tail->iov_len += pad;  in xdr_write_pages()
1338 	return xdr_set_iov(xdr, buf->tail, base, len);  in xdr_set_tail_base()
1436 		xdr_set_iov(xdr, buf->tail, 0, buf->len);  in xdr_init_decode()
1666 	buf->tail[0] = empty_iov;  in xdr_buf_from_iov()
1716 	if (base < buf->tail[0].iov_len) {  in xdr_buf_subsegment()
1717 		subbuf->tail[0].iov_base = buf->tail[0].iov_base + base;  in xdr_buf_subsegment()
1718 		subbuf->tail[0].iov_len = min_t(unsigned int, len,  in xdr_buf_subsegment()
1719 						buf->tail[0].iov_len - base);  in xdr_buf_subsegment()
1720 		len -= subbuf->tail[0].iov_len;  in xdr_buf_subsegment()
1723 		base -= buf->tail[0].iov_len;  in xdr_buf_subsegment()
1724 		subbuf->tail[0].iov_base = buf->tail[0].iov_base;  in xdr_buf_subsegment()
1725 		subbuf->tail[0].iov_len = 0;  in xdr_buf_subsegment()
1829 	if (buf.tail[0].iov_len)  in xdr_stream_zero()
1830 		xdr_buf_iov_zero(buf.tail, 0, buf.tail[0].iov_len);  in xdr_stream_zero()
1850 	if (buf->tail[0].iov_len) {  in xdr_buf_trim()
1851 		cur = min_t(size_t, buf->tail[0].iov_len, trim);  in xdr_buf_trim()
1852 		buf->tail[0].iov_len -= cur;  in xdr_buf_trim()
1889 	this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);  in __read_bytes_from_xdr_buf()
1890 	memcpy(obj, subbuf->tail[0].iov_base, this_len);  in __read_bytes_from_xdr_buf()
1921 	this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);  in __write_bytes_to_xdr_buf()
1922 	memcpy(subbuf->tail[0].iov_base, obj, this_len);  in __write_bytes_to_xdr_buf()
2123 		c = buf->tail->iov_base + base;  in xdr_xcode_array2()
2169 	    buf->head->iov_len + buf->page_len + buf->tail->iov_len)  in xdr_encode_array2()
2228 	if (offset < buf->tail[0].iov_len) {  in xdr_process_buf()
2229 		thislen = buf->tail[0].iov_len - offset;  in xdr_process_buf()
2232 		sg_set_buf(sg, buf->tail[0].iov_base + offset, thislen);  in xdr_process_buf()