re #13613 rb4516 Tunables needs volatile keyword

*** 18,27 ****
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
   */
  
  /*
   * IP PACKET CLASSIFIER
   *
*** 274,284 ****
  
  /* Old value for compatibility. Setable in /etc/system */
  uint_t tcp_conn_hash_size = 0;
  
  /* New value. Zero means choose automatically.  Setable in /etc/system */
! uint_t ipcl_conn_hash_size = 0;
  uint_t ipcl_conn_hash_memfactor = 8192;
  uint_t ipcl_conn_hash_maxsize = 82500;
  
  /* bind/udp fanout table size */
  uint_t ipcl_bind_fanout_size = 512;
--- 275,285 ----
  
  /* Old value for compatibility. Setable in /etc/system */
  uint_t tcp_conn_hash_size = 0;
  
  /* New value. Zero means choose automatically.  Setable in /etc/system */
! volatile uint_t ipcl_conn_hash_size = 0;
  uint_t ipcl_conn_hash_memfactor = 8192;
  uint_t ipcl_conn_hash_maxsize = 82500;
  
  /* bind/udp fanout table size */
  uint_t ipcl_bind_fanout_size = 512;