diff options
| author |   Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-06-21 17:14:46 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-06-28 17:20:44 -0400 |
| commit | 4517d526c8aa31b5c14165ef180cc19518ff0a35 (patch) | |
| tree | 51201ff494ab5615034046a093e242795af794bb /net/sunrpc | |
| parent | NFS: Let xdr_read_pages() check for buffer overflows (diff) | |
| download | linux-dev-4517d526c8aa31b5c14165ef180cc19518ff0a35.tar.xz linux-dev-4517d526c8aa31b5c14165ef180cc19518ff0a35.zip | |
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 <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/xdr.c | 10 |
1 files changed, 10 insertions, 0 deletions
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 @@ -455,6 +455,16 @@ 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 * @buf: pointer to XDR buffer in which to encode data |