Name
xdr_read_pages — 
     Ensure page-based XDR data to decode is aligned at current pointer position
 
Synopsis
| unsigned int xdr_read_pages ( | struct xdr_stream * xdr, | 
|  | unsigned int len ); | 
 
Arguments
- xdr
- 
     pointer to xdr_stream struct
     
- len
- 
     number of bytes of page data
     
Description
   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