1110 xdr_buf_subsegment(struct xdr_buf *buf, struct xdr_buf *subbuf,  in xdr_buf_subsegment()  argument
1113 	subbuf->buflen = subbuf->len = len;  in xdr_buf_subsegment()
1115 		subbuf->head[0].iov_base = buf->head[0].iov_base + base;  in xdr_buf_subsegment()
1116 		subbuf->head[0].iov_len = min_t(unsigned int, len,  in xdr_buf_subsegment()
1118 		len -= subbuf->head[0].iov_len;  in xdr_buf_subsegment()
1122 		subbuf->head[0].iov_len = 0;  in xdr_buf_subsegment()
1126 		subbuf->page_len = min(buf->page_len - base, len);  in xdr_buf_subsegment()
1128 		subbuf->page_base = base & ~PAGE_MASK;  in xdr_buf_subsegment()
1129 		subbuf->pages = &buf->pages[base >> PAGE_SHIFT];  in xdr_buf_subsegment()
1130 		len -= subbuf->page_len;  in xdr_buf_subsegment()
1134 		subbuf->page_len = 0;  in xdr_buf_subsegment()
1138 		subbuf->tail[0].iov_base = buf->tail[0].iov_base + base;  in xdr_buf_subsegment()
1139 		subbuf->tail[0].iov_len = min_t(unsigned int, len,  in xdr_buf_subsegment()
1141 		len -= subbuf->tail[0].iov_len;  in xdr_buf_subsegment()
1145 		subbuf->tail[0].iov_len = 0;  in xdr_buf_subsegment()
1154 static void __read_bytes_from_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)  in __read_bytes_from_xdr_buf()  argument
1158 	this_len = min_t(unsigned int, len, subbuf->head[0].iov_len);  in __read_bytes_from_xdr_buf()
1159 	memcpy(obj, subbuf->head[0].iov_base, this_len);  in __read_bytes_from_xdr_buf()
1162 	this_len = min_t(unsigned int, len, subbuf->page_len);  in __read_bytes_from_xdr_buf()
1164 		_copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);  in __read_bytes_from_xdr_buf()
1167 	this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);  in __read_bytes_from_xdr_buf()
1168 	memcpy(obj, subbuf->tail[0].iov_base, this_len);  in __read_bytes_from_xdr_buf()
1174 	struct xdr_buf subbuf;  in read_bytes_from_xdr_buf()  local
1177 	status = xdr_buf_subsegment(buf, &subbuf, base, len);  in read_bytes_from_xdr_buf()
1180 	__read_bytes_from_xdr_buf(&subbuf, obj, len);  in read_bytes_from_xdr_buf()
1185 static void __write_bytes_to_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)  in __write_bytes_to_xdr_buf()  argument
1189 	this_len = min_t(unsigned int, len, subbuf->head[0].iov_len);  in __write_bytes_to_xdr_buf()
1190 	memcpy(subbuf->head[0].iov_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1193 	this_len = min_t(unsigned int, len, subbuf->page_len);  in __write_bytes_to_xdr_buf()
1195 		_copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1198 	this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);  in __write_bytes_to_xdr_buf()
1199 	memcpy(subbuf->tail[0].iov_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1205 	struct xdr_buf subbuf;  in write_bytes_to_xdr_buf()  local
1208 	status = xdr_buf_subsegment(buf, &subbuf, base, len);  in write_bytes_to_xdr_buf()
1211 	__write_bytes_to_xdr_buf(&subbuf, obj, len);  in write_bytes_to_xdr_buf()
1253 	struct xdr_buf subbuf;  in xdr_buf_read_mic()  local
1270 	if (xdr_buf_subsegment(buf, &subbuf, offset, mic->len))  in xdr_buf_read_mic()
1274 	mic->data = subbuf.head[0].iov_base;  in xdr_buf_read_mic()
1275 	if (subbuf.head[0].iov_len == mic->len)  in xdr_buf_read_mic()
1278 	mic->data = subbuf.tail[0].iov_base;  in xdr_buf_read_mic()
1279 	if (subbuf.tail[0].iov_len == mic->len)  in xdr_buf_read_mic()
1289 	__read_bytes_from_xdr_buf(&subbuf, mic->data, mic->len);  in xdr_buf_read_mic()