1113 xdr_buf_subsegment(struct xdr_buf *buf, struct xdr_buf *subbuf,  in xdr_buf_subsegment()  argument
1116 	subbuf->buflen = subbuf->len = len;  in xdr_buf_subsegment()
1118 		subbuf->head[0].iov_base = buf->head[0].iov_base + base;  in xdr_buf_subsegment()
1119 		subbuf->head[0].iov_len = min_t(unsigned int, len,  in xdr_buf_subsegment()
1121 		len -= subbuf->head[0].iov_len;  in xdr_buf_subsegment()
1125 		subbuf->head[0].iov_base = buf->head[0].iov_base;  in xdr_buf_subsegment()
1126 		subbuf->head[0].iov_len = 0;  in xdr_buf_subsegment()
1130 		subbuf->page_len = min(buf->page_len - base, len);  in xdr_buf_subsegment()
1132 		subbuf->page_base = base & ~PAGE_MASK;  in xdr_buf_subsegment()
1133 		subbuf->pages = &buf->pages[base >> PAGE_SHIFT];  in xdr_buf_subsegment()
1134 		len -= subbuf->page_len;  in xdr_buf_subsegment()
1138 		subbuf->pages = buf->pages;  in xdr_buf_subsegment()
1139 		subbuf->page_base = 0;  in xdr_buf_subsegment()
1140 		subbuf->page_len = 0;  in xdr_buf_subsegment()
1144 		subbuf->tail[0].iov_base = buf->tail[0].iov_base + base;  in xdr_buf_subsegment()
1145 		subbuf->tail[0].iov_len = min_t(unsigned int, len,  in xdr_buf_subsegment()
1147 		len -= subbuf->tail[0].iov_len;  in xdr_buf_subsegment()
1151 		subbuf->tail[0].iov_base = buf->tail[0].iov_base;  in xdr_buf_subsegment()
1152 		subbuf->tail[0].iov_len = 0;  in xdr_buf_subsegment()
1202 static void __read_bytes_from_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)  in __read_bytes_from_xdr_buf()  argument
1206 	this_len = min_t(unsigned int, len, subbuf->head[0].iov_len);  in __read_bytes_from_xdr_buf()
1207 	memcpy(obj, subbuf->head[0].iov_base, this_len);  in __read_bytes_from_xdr_buf()
1210 	this_len = min_t(unsigned int, len, subbuf->page_len);  in __read_bytes_from_xdr_buf()
1212 		_copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);  in __read_bytes_from_xdr_buf()
1215 	this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);  in __read_bytes_from_xdr_buf()
1216 	memcpy(obj, subbuf->tail[0].iov_base, this_len);  in __read_bytes_from_xdr_buf()
1222 	struct xdr_buf subbuf;  in read_bytes_from_xdr_buf()  local
1225 	status = xdr_buf_subsegment(buf, &subbuf, base, len);  in read_bytes_from_xdr_buf()
1228 	__read_bytes_from_xdr_buf(&subbuf, obj, len);  in read_bytes_from_xdr_buf()
1233 static void __write_bytes_to_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)  in __write_bytes_to_xdr_buf()  argument
1237 	this_len = min_t(unsigned int, len, subbuf->head[0].iov_len);  in __write_bytes_to_xdr_buf()
1238 	memcpy(subbuf->head[0].iov_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1241 	this_len = min_t(unsigned int, len, subbuf->page_len);  in __write_bytes_to_xdr_buf()
1243 		_copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1246 	this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);  in __write_bytes_to_xdr_buf()
1247 	memcpy(subbuf->tail[0].iov_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1253 	struct xdr_buf subbuf;  in write_bytes_to_xdr_buf()  local
1256 	status = xdr_buf_subsegment(buf, &subbuf, base, len);  in write_bytes_to_xdr_buf()
1259 	__write_bytes_to_xdr_buf(&subbuf, obj, len);  in write_bytes_to_xdr_buf()
1301 	struct xdr_buf subbuf;  in xdr_buf_read_mic()  local
1318 	if (xdr_buf_subsegment(buf, &subbuf, offset, mic->len))  in xdr_buf_read_mic()
1322 	mic->data = subbuf.head[0].iov_base;  in xdr_buf_read_mic()
1323 	if (subbuf.head[0].iov_len == mic->len)  in xdr_buf_read_mic()
1326 	mic->data = subbuf.tail[0].iov_base;  in xdr_buf_read_mic()
1327 	if (subbuf.tail[0].iov_len == mic->len)  in xdr_buf_read_mic()
1337 	__read_bytes_from_xdr_buf(&subbuf, mic->data, mic->len);  in xdr_buf_read_mic()