diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 7cef45d..8d67c28 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -206,6 +206,18 @@
 			  const char *path);
 #endif
 
+/* nfs4proc.c */
+extern int _nfs4_call_sync(struct nfs_server *server,
+			   struct rpc_message *msg,
+			   struct nfs4_sequence_args *args,
+			   struct nfs4_sequence_res *res,
+			   int cache_reply);
+extern int _nfs4_call_sync_session(struct nfs_server *server,
+				   struct rpc_message *msg,
+				   struct nfs4_sequence_args *args,
+				   struct nfs4_sequence_res *res,
+				   int cache_reply);
+
 /*
  * Determine if sessions are in use.
  */