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-rw-r--r--include/linux/sunrpc/svc.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 762d7231e574..3b10636c51a9 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -509,6 +509,27 @@ static inline void svcxdr_init_encode(struct svc_rqst *rqstp)
}
/**
+ * svcxdr_encode_opaque_pages - Insert pages into an xdr_stream
+ * @xdr: xdr_stream to be updated
+ * @pages: array of pages to insert
+ * @base: starting offset of first data byte in @pages
+ * @len: number of data bytes in @pages to insert
+ *
+ * After the @pages are added, the tail iovec is instantiated pointing
+ * to end of the head buffer, and the stream is set up to encode
+ * subsequent items into the tail.
+ */
+static inline void svcxdr_encode_opaque_pages(struct svc_rqst *rqstp,
+ struct xdr_stream *xdr,
+ struct page **pages,
+ unsigned int base,
+ unsigned int len)
+{
+ xdr_write_pages(xdr, pages, base, len);
+ xdr->page_ptr = rqstp->rq_next_page - 1;
+}
+
+/**
* svcxdr_set_auth_slack -
* @rqstp: RPC transaction
* @slack: buffer space to reserve for the transaction's security flavor