NEX-5177 backport illumos 6345 remove xhat support
Reviewed by: Kevin Crowe <kevin.crowe@nexenta.com>
6345 remove xhat support
Reviewed by: Dan McDonald <danmcd@omniti.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Hans Rosenfeld <rosenfeld@grumpf.hope-2000.org>
NEX-5164 backport illumos 6514 AS_* lock macros simplification
Reviewed by: Kevin Crowe <kevin.crowe@nexenta.com>
6514 AS_* lock macros simplification
Reviewed by: Piotr Jasiukajtis <estibi@me.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Albert Lee <trisk@omniti.com>
Approved by: Dan McDonald <danmcd@omniti.com>
re #13613 rb4516 Tunables needs volatile keyword

*** 18,27 ****
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 1993, 2010, Oracle and/or its affiliates. All rights reserved.
+  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
   * Copyright (c) 2015, Joyent, Inc. All rights reserved.
   * Copyright (c) 2016 by Delphix. All rights reserved.
   */
  
  #include <sys/param.h>
*** 68,78 ****
   * be able to use up more memory for ISM so we set the default
   * segspt_minfree to 5% (which gives ISM max 95% of availrmem.
   * If somebody wants even more memory for ISM (risking hanging
   * the system) they can patch the segspt_minfree to smaller number.
   */
! pgcnt_t segspt_minfree = 0;
  
  static int segspt_create(struct seg *seg, caddr_t argsp);
  static int segspt_unmap(struct seg *seg, caddr_t raddr, size_t ssize);
  static void segspt_free(struct seg *seg);
  static void segspt_free_pages(struct seg *seg, caddr_t addr, size_t len);
--- 69,79 ----
   * be able to use up more memory for ISM so we set the default
   * segspt_minfree to 5% (which gives ISM max 95% of availrmem.
   * If somebody wants even more memory for ISM (risking hanging
   * the system) they can patch the segspt_minfree to smaller number.
   */
! volatile pgcnt_t segspt_minfree = 0;
  
  static int segspt_create(struct seg *seg, caddr_t argsp);
  static int segspt_unmap(struct seg *seg, caddr_t raddr, size_t ssize);
  static void segspt_free(struct seg *seg);
  static void segspt_free_pages(struct seg *seg, caddr_t addr, size_t len);