1383 xdr_buf_subsegment(struct xdr_buf *buf, struct xdr_buf *subbuf,  in xdr_buf_subsegment()  argument
1386 	subbuf->buflen = subbuf->len = len;  in xdr_buf_subsegment()
1388 		subbuf->head[0].iov_base = buf->head[0].iov_base + base;  in xdr_buf_subsegment()
1389 		subbuf->head[0].iov_len = min_t(unsigned int, len,  in xdr_buf_subsegment()
1391 		len -= subbuf->head[0].iov_len;  in xdr_buf_subsegment()
1395 		subbuf->head[0].iov_base = buf->head[0].iov_base;  in xdr_buf_subsegment()
1396 		subbuf->head[0].iov_len = 0;  in xdr_buf_subsegment()
1400 		subbuf->page_len = min(buf->page_len - base, len);  in xdr_buf_subsegment()
1402 		subbuf->page_base = base & ~PAGE_MASK;  in xdr_buf_subsegment()
1403 		subbuf->pages = &buf->pages[base >> PAGE_SHIFT];  in xdr_buf_subsegment()
1404 		len -= subbuf->page_len;  in xdr_buf_subsegment()
1408 		subbuf->pages = buf->pages;  in xdr_buf_subsegment()
1409 		subbuf->page_base = 0;  in xdr_buf_subsegment()
1410 		subbuf->page_len = 0;  in xdr_buf_subsegment()
1414 		subbuf->tail[0].iov_base = buf->tail[0].iov_base + base;  in xdr_buf_subsegment()
1415 		subbuf->tail[0].iov_len = min_t(unsigned int, len,  in xdr_buf_subsegment()
1417 		len -= subbuf->tail[0].iov_len;  in xdr_buf_subsegment()
1421 		subbuf->tail[0].iov_base = buf->tail[0].iov_base;  in xdr_buf_subsegment()
1422 		subbuf->tail[0].iov_len = 0;  in xdr_buf_subsegment()
1472 static void __read_bytes_from_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)  in __read_bytes_from_xdr_buf()  argument
1476 	this_len = min_t(unsigned int, len, subbuf->head[0].iov_len);  in __read_bytes_from_xdr_buf()
1477 	memcpy(obj, subbuf->head[0].iov_base, this_len);  in __read_bytes_from_xdr_buf()
1480 	this_len = min_t(unsigned int, len, subbuf->page_len);  in __read_bytes_from_xdr_buf()
1482 		_copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);  in __read_bytes_from_xdr_buf()
1485 	this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);  in __read_bytes_from_xdr_buf()
1486 	memcpy(obj, subbuf->tail[0].iov_base, this_len);  in __read_bytes_from_xdr_buf()
1492 	struct xdr_buf subbuf;  in read_bytes_from_xdr_buf()  local
1495 	status = xdr_buf_subsegment(buf, &subbuf, base, len);  in read_bytes_from_xdr_buf()
1498 	__read_bytes_from_xdr_buf(&subbuf, obj, len);  in read_bytes_from_xdr_buf()
1503 static void __write_bytes_to_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)  in __write_bytes_to_xdr_buf()  argument
1507 	this_len = min_t(unsigned int, len, subbuf->head[0].iov_len);  in __write_bytes_to_xdr_buf()
1508 	memcpy(subbuf->head[0].iov_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1511 	this_len = min_t(unsigned int, len, subbuf->page_len);  in __write_bytes_to_xdr_buf()
1513 		_copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1516 	this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);  in __write_bytes_to_xdr_buf()
1517 	memcpy(subbuf->tail[0].iov_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1523 	struct xdr_buf subbuf;  in write_bytes_to_xdr_buf()  local
1526 	status = xdr_buf_subsegment(buf, &subbuf, base, len);  in write_bytes_to_xdr_buf()
1529 	__write_bytes_to_xdr_buf(&subbuf, obj, len);  in write_bytes_to_xdr_buf()