195 Need replacement for nfs/lockd+klm
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Reviewed by: Jeremy Jones <jeremy@delphix.com>
Reviewed by: Jeff Biseda <jbiseda@delphix.com>

*** 21,30 ****
--- 21,34 ----
  /*
   * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
+ /*
+  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
+  */
+ 
  #include <sys/types.h>
  #include <sys/sysmacros.h>
  #include <sys/param.h>
  #include <sys/systm.h>
  #include <sys/fcntl.h>
*** 44,54 ****
--- 48,60 ----
  static void print_shares(struct vnode *);
  static void print_share(struct shrlock *);
  #endif
  
  static int isreadonly(struct vnode *);
+ static void do_cleanshares(struct vnode *, pid_t, int32_t);
  
+ 
  /*
   * Add the share reservation shr to vp.
   */
  int
  add_share(struct vnode *vp, struct shrlock *shr)
*** 333,351 ****
   * the given file.
   */
  void
  cleanshares(struct vnode *vp, pid_t pid)
  {
          struct shrlock shr;
  
          if (vp->v_shrlocks == NULL)
                  return;
  
          shr.s_access = 0;
          shr.s_deny = 0;
          shr.s_pid = pid;
!         shr.s_sysid = 0;
          shr.s_own_len = 0;
          shr.s_owner = NULL;
  
          (void) del_share(vp, &shr);
  }
--- 339,383 ----
   * the given file.
   */
  void
  cleanshares(struct vnode *vp, pid_t pid)
  {
+         do_cleanshares(vp, pid, 0);
+ }
+ 
+ /*
+  * Cleanup all remote share reservations that
+  * were made by the given sysid on given vnode.
+  */
+ void
+ cleanshares_by_sysid(struct vnode *vp, int32_t sysid)
+ {
+         if (sysid == 0)
+                 return;
+ 
+         do_cleanshares(vp, 0, sysid);
+ }
+ 
+ /*
+  * Cleanup share reservations on given vnode made
+  * by the either given pid or sysid.
+  * If sysid is 0, remove all shares made by given pid,
+  * otherwise all shares made by the given sysid will
+  * be removed.
+  */
+ static void
+ do_cleanshares(struct vnode *vp, pid_t pid, int32_t sysid)
+ {
          struct shrlock shr;
  
          if (vp->v_shrlocks == NULL)
                  return;
  
          shr.s_access = 0;
          shr.s_deny = 0;
          shr.s_pid = pid;
!         shr.s_sysid = sysid;
          shr.s_own_len = 0;
          shr.s_owner = NULL;
  
          (void) del_share(vp, &shr);
  }