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-rw-r--r--include/linux/sunrpc/xdr.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 261b48a2701d..86b59e3525a5 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -239,6 +239,19 @@ 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);
+/**
+ * xdr_stream_remaining - Return the number of bytes remaining in the stream
+ * @xdr: pointer to struct xdr_stream
+ *
+ * Return value:
+ * Number of bytes remaining in @xdr before xdr->end
+ */
+static inline size_t
+xdr_stream_remaining(const struct xdr_stream *xdr)
+{
+ return xdr->nwords << 2;
+}
+
ssize_t xdr_stream_decode_string_dup(struct xdr_stream *xdr, char **str,
size_t maxlen, gfp_t gfp_flags);
/**