54 		   struct xdr_buf *xdr,  in map_xdr()  argument
63 	BUG_ON(xdr->len !=  in map_xdr()
64 	       (xdr->head[0].iov_len + xdr->page_len + xdr->tail[0].iov_len));  in map_xdr()
70 	vec->sge[sge_no].iov_base = xdr->head[0].iov_base;  in map_xdr()
71 	vec->sge[sge_no].iov_len = xdr->head[0].iov_len;  in map_xdr()
76 	page_bytes = xdr->page_len;  in map_xdr()
77 	page_off = xdr->page_base;  in map_xdr()
80 			page_address(xdr->pages[page_no]) + page_off;  in map_xdr()
91 	if (xdr->tail[0].iov_len) {  in map_xdr()
92 		vec->sge[sge_no].iov_base = xdr->tail[0].iov_base;  in map_xdr()
93 		vec->sge[sge_no].iov_len = xdr->tail[0].iov_len;  in map_xdr()
99 		sge_no, page_no, xdr->page_base, xdr->page_len,  in map_xdr()
100 		xdr->head[0].iov_len, xdr->tail[0].iov_len);  in map_xdr()
107 			      struct xdr_buf *xdr,  in dma_map_xdr()  argument
112 	if (xdr_off < xdr->head[0].iov_len) {  in dma_map_xdr()
114 		xdr_off += (unsigned long)xdr->head[0].iov_base & ~PAGE_MASK;  in dma_map_xdr()
115 		page = virt_to_page(xdr->head[0].iov_base);  in dma_map_xdr()
117 		xdr_off -= xdr->head[0].iov_len;  in dma_map_xdr()
118 		if (xdr_off < xdr->page_len) {  in dma_map_xdr()
120 			xdr_off += xdr->page_base;  in dma_map_xdr()
121 			page = xdr->pages[xdr_off >> PAGE_SHIFT];  in dma_map_xdr()
125 			xdr_off -= xdr->page_len;  in dma_map_xdr()
127 				xdr->tail[0].iov_base & ~PAGE_MASK;  in dma_map_xdr()
128 			page = virt_to_page(xdr->tail[0].iov_base);  in dma_map_xdr()
482 static void *xdr_start(struct xdr_buf *xdr)  in xdr_start()  argument
484 	return xdr->head[0].iov_base -  in xdr_start()
485 		(xdr->len -  in xdr_start()
486 		 xdr->page_len -  in xdr_start()
487 		 xdr->tail[0].iov_len -  in xdr_start()
488 		 xdr->head[0].iov_len);  in xdr_start()