135 	struct kvec *head = xdr->head;  in xdr_inline_pages()  local
137 	char *buf = (char *)head->iov_base;  in xdr_inline_pages()
138 	unsigned int buflen = head->iov_len;  in xdr_inline_pages()
140 	head->iov_len  = offset;  in xdr_inline_pages()
318 	struct kvec *head, *tail;  in xdr_shrink_bufhead()  local
323 	head = buf->head;  in xdr_shrink_bufhead()
325 	WARN_ON_ONCE(len > head->iov_len);  in xdr_shrink_bufhead()
326 	if (len > head->iov_len)  in xdr_shrink_bufhead()
327 		len = head->iov_len;  in xdr_shrink_bufhead()
356 					(char *)head->iov_base +  in xdr_shrink_bufhead()
357 					head->iov_len - offs,  in xdr_shrink_bufhead()
372 				(char *)head->iov_base + head->iov_len - len,  in xdr_shrink_bufhead()
375 	head->iov_len -= len;  in xdr_shrink_bufhead()
402 	tailbuf_len = buf->buflen - buf->head->iov_len - buf->page_len;  in xdr_shrink_pagelen()
462 	struct kvec *iov = buf->head;  in xdr_init_encode()
606 	struct kvec *head = buf->head;  in xdr_truncate_encode()  local
643 		xdr->end = head->iov_base + head->iov_len;  in xdr_truncate_encode()
647 	head->iov_len = len;  in xdr_truncate_encode()
649 	xdr->p = head->iov_base + head->iov_len;  in xdr_truncate_encode()
650 	xdr->iov = buf->head;  in xdr_truncate_encode()
777 	else if (xdr->iov == xdr->buf->head) {  in xdr_set_next_buffer()
796 	if (buf->head[0].iov_len != 0)  in xdr_init_decode()
797 		xdr_set_iov(xdr, buf->head, buf->len);  in xdr_init_decode()
912 	iov  = buf->head;  in xdr_align_pages()
1001 	buf->head[0] = *iov;  in xdr_buf_from_iov()
1027 	if (base < buf->head[0].iov_len) {  in xdr_buf_subsegment()
1028 		subbuf->head[0].iov_base = buf->head[0].iov_base + base;  in xdr_buf_subsegment()
1029 		subbuf->head[0].iov_len = min_t(unsigned int, len,  in xdr_buf_subsegment()
1030 						buf->head[0].iov_len - base);  in xdr_buf_subsegment()
1031 		len -= subbuf->head[0].iov_len;  in xdr_buf_subsegment()
1034 		base -= buf->head[0].iov_len;  in xdr_buf_subsegment()
1035 		subbuf->head[0].iov_len = 0;  in xdr_buf_subsegment()
1098 	if (buf->head[0].iov_len) {  in xdr_buf_trim()
1099 		cur = min_t(size_t, buf->head[0].iov_len, trim);  in xdr_buf_trim()
1100 		buf->head[0].iov_len -= cur;  in xdr_buf_trim()
1112 	this_len = min_t(unsigned int, len, subbuf->head[0].iov_len);  in __read_bytes_from_xdr_buf()
1113 	memcpy(obj, subbuf->head[0].iov_base, this_len);  in __read_bytes_from_xdr_buf()
1143 	this_len = min_t(unsigned int, len, subbuf->head[0].iov_len);  in __write_bytes_to_xdr_buf()
1144 	memcpy(subbuf->head[0].iov_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1207 	obj->data = subbuf.head[0].iov_base;  in xdr_buf_read_netobj()
1208 	if (subbuf.head[0].iov_len == obj->len)  in xdr_buf_read_netobj()
1225 		obj->data = buf->head[0].iov_base + buf->head[0].iov_len;  in xdr_buf_read_netobj()
1259 	if (todo && base < buf->head->iov_len) {  in xdr_xcode_array2()
1260 		c = buf->head->iov_base + base;  in xdr_xcode_array2()
1262 				   buf->head->iov_len - base);  in xdr_xcode_array2()
1288 		base = buf->head->iov_len;  /* align to start of pages */  in xdr_xcode_array2()
1292 	base -= buf->head->iov_len;  in xdr_xcode_array2()
1442 	    buf->head->iov_len + buf->page_len + buf->tail->iov_len)  in xdr_encode_array2()
1459 	if (offset >= buf->head[0].iov_len) {  in xdr_process_buf()
1460 		offset -= buf->head[0].iov_len;  in xdr_process_buf()
1462 		thislen = buf->head[0].iov_len - offset;  in xdr_process_buf()
1465 		sg_set_buf(sg, buf->head[0].iov_base + offset, thislen);  in xdr_process_buf()