struct page **pages, unsigned int len);
extern void xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen);
extern __be32 *xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes);
-extern void xdr_read_pages(struct xdr_stream *xdr, unsigned int len);
+extern unsigned int xdr_read_pages(struct xdr_stream *xdr, unsigned int len);
extern void xdr_enter_page(struct xdr_stream *xdr, unsigned int len);
extern int xdr_process_buf(struct xdr_buf *buf, unsigned int offset, unsigned int len, int (*actor)(struct scatterlist *, void *), void *data);
* Moves data beyond the current pointer position from the XDR head[] buffer
* into the page list. Any data that lies beyond current position + "len"
* bytes is moved into the XDR tail[].
+ *
+ * Returns the number of XDR encoded bytes now contained in the pages
*/
-void xdr_read_pages(struct xdr_stream *xdr, unsigned int len)
+unsigned int xdr_read_pages(struct xdr_stream *xdr, unsigned int len)
{
struct xdr_buf *buf = xdr->buf;
struct kvec *iov;
int padding;
if (xdr->nwords == 0)
- return;
+ return 0;
if (nwords > xdr->nwords) {
nwords = xdr->nwords;
len = nwords << 2;
xdr->end = (__be32 *)((char *)iov->iov_base + end);
xdr->page_ptr = NULL;
xdr->nwords = XDR_QUADLEN(end - padding);
+ return len;
}
EXPORT_SYMBOL_GPL(xdr_read_pages);
*/
void xdr_enter_page(struct xdr_stream *xdr, unsigned int len)
{
- xdr_read_pages(xdr, len);
+ len = xdr_read_pages(xdr, len);
/*
* Position current pointer at beginning of tail, and
* set remaining message length.