--- old/make/src/native/genconstants/ch/genSocketOptionRegistry.c	2016-02-24 13:34:27.456280899 +0530
+++ new/make/src/native/genconstants/ch/genSocketOptionRegistry.c	2016-02-24 13:34:27.336280898 +0530
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -34,6 +34,13 @@
 #include <netinet/tcp.h>
 #endif
 
+#if !defined(SO_QUICKACK)
+	#if defined(__linux__)
+		#define SO_QUICKACK 0xC /* Block/reenable quick ACKs.  */
+	#else
+		#define SO_QUICKACK 0
+	#endif
+#endif
 /**
  * Generates sun.nio.ch.SocketOptionRegistry, a class that maps Java-level
  * socket options to the platform specific level and option.
@@ -117,6 +124,7 @@
 #endif
 
     emit_unspec("ExtendedSocketOption.SO_OOBINLINE", SOL_SOCKET, SO_OOBINLINE);
+    emit_unspec("jdk.net.ExtendedSocketOptions.SO_QUICKACK", SOL_SOCKET, SO_QUICKACK);
 
     out("            return map;                                                        ");
     out("        }                                                                      ");