1023 xdr_buf_subsegment(struct xdr_buf *buf, struct xdr_buf *subbuf,  in xdr_buf_subsegment()  argument
1026 	subbuf->buflen = subbuf->len = 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()
1031 		len -= subbuf->head[0].iov_len;  in xdr_buf_subsegment()
1035 		subbuf->head[0].iov_len = 0;  in xdr_buf_subsegment()
1039 		subbuf->page_len = min(buf->page_len - base, len);  in xdr_buf_subsegment()
1041 		subbuf->page_base = base & ~PAGE_CACHE_MASK;  in xdr_buf_subsegment()
1042 		subbuf->pages = &buf->pages[base >> PAGE_CACHE_SHIFT];  in xdr_buf_subsegment()
1043 		len -= subbuf->page_len;  in xdr_buf_subsegment()
1047 		subbuf->page_len = 0;  in xdr_buf_subsegment()
1051 		subbuf->tail[0].iov_base = buf->tail[0].iov_base + base;  in xdr_buf_subsegment()
1052 		subbuf->tail[0].iov_len = min_t(unsigned int, len,  in xdr_buf_subsegment()
1054 		len -= subbuf->tail[0].iov_len;  in xdr_buf_subsegment()
1058 		subbuf->tail[0].iov_len = 0;  in xdr_buf_subsegment()
1108 static void __read_bytes_from_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)  in __read_bytes_from_xdr_buf()  argument
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()
1116 	this_len = min_t(unsigned int, len, subbuf->page_len);  in __read_bytes_from_xdr_buf()
1118 		_copy_from_pages(obj, subbuf->pages, subbuf->page_base, this_len);  in __read_bytes_from_xdr_buf()
1121 	this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);  in __read_bytes_from_xdr_buf()
1122 	memcpy(obj, subbuf->tail[0].iov_base, this_len);  in __read_bytes_from_xdr_buf()
1128 	struct xdr_buf subbuf;  in read_bytes_from_xdr_buf()  local
1131 	status = xdr_buf_subsegment(buf, &subbuf, base, len);  in read_bytes_from_xdr_buf()
1134 	__read_bytes_from_xdr_buf(&subbuf, obj, len);  in read_bytes_from_xdr_buf()
1139 static void __write_bytes_to_xdr_buf(struct xdr_buf *subbuf, void *obj, unsigned int len)  in __write_bytes_to_xdr_buf()  argument
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()
1147 	this_len = min_t(unsigned int, len, subbuf->page_len);  in __write_bytes_to_xdr_buf()
1149 		_copy_to_pages(subbuf->pages, subbuf->page_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1152 	this_len = min_t(unsigned int, len, subbuf->tail[0].iov_len);  in __write_bytes_to_xdr_buf()
1153 	memcpy(subbuf->tail[0].iov_base, obj, this_len);  in __write_bytes_to_xdr_buf()
1159 	struct xdr_buf subbuf;  in write_bytes_to_xdr_buf()  local
1162 	status = xdr_buf_subsegment(buf, &subbuf, base, len);  in write_bytes_to_xdr_buf()
1165 	__write_bytes_to_xdr_buf(&subbuf, obj, len);  in write_bytes_to_xdr_buf()
1199 	struct xdr_buf subbuf;  in xdr_buf_read_netobj()  local
1203 	if (xdr_buf_subsegment(buf, &subbuf, offset + 4, obj->len))  in xdr_buf_read_netobj()
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()
1211 	obj->data = subbuf.tail[0].iov_base;  in xdr_buf_read_netobj()
1212 	if (subbuf.tail[0].iov_len == obj->len)  in xdr_buf_read_netobj()
1226 	__read_bytes_from_xdr_buf(&subbuf, obj->data, obj->len);  in xdr_buf_read_netobj()