From 4517d526c8aa31b5c14165ef180cc19518ff0a35 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 21 Jun 2012 17:14:46 -0400 Subject: SUNRPC: Add the helper xdr_stream_pos Add a helper to report the current offset from the start of the xdr_stream. Signed-off-by: Trond Myklebust --- net/sunrpc/xdr.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'net/sunrpc') diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 80d518644cf8..95980a5cd0a8 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -454,6 +454,16 @@ xdr_shift_buf(struct xdr_buf *buf, size_t len) } EXPORT_SYMBOL_GPL(xdr_shift_buf); +/** + * xdr_stream_pos - Return the current offset from the start of the xdr_stream + * @xdr: pointer to struct xdr_stream + */ +unsigned int xdr_stream_pos(const struct xdr_stream *xdr) +{ + return (unsigned int)(XDR_QUADLEN(xdr->buf->len) - xdr->nwords) << 2; +} +EXPORT_SYMBOL_GPL(xdr_stream_pos); + /** * xdr_init_encode - Initialize a struct xdr_stream for sending data. * @xdr: pointer to xdr_stream struct -- cgit v1.2.3-59-g8ed1b