XDR_TRUNCATE_ENCODE(9)                   Linux Networking                  XDR_TRUNCATE_ENCODE(9)



NAME
       xdr_truncate_encode - truncate an encode buffer

SYNOPSIS
       void xdr_truncate_encode(struct xdr_stream * xdr, size_t len);

ARGUMENTS
       xdr
           pointer to xdr_stream

       len
           new length of buffer

DESCRIPTION
       Truncates the xdr stream, so that xdr->buf->len == len, and xdr->p points at offset len
       from the start of the buffer, and head, tail, and page lengths are adjusted to correspond.

       If this means moving xdr->p to a different buffer, we assume that that the end pointer
       should be set to the end of the current page, except in the case of the head buffer when
       we assume the head buffer's current length represents the end of the available buffer.

       This is *not* safe to use on a buffer that already has inlined page cache pages (as in a
       zero-copy server read reply), except for the simple case of truncating from one position
       in the tail to another.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                    XDR_TRUNCATE_ENCODE(9)