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>

*** 25,34 ****
--- 25,38 ----
   */
  
  /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  /*      All Rights Reserved */
  
+ /*
+  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
+  */
+ 
  #include <sys/flock_impl.h>
  #include <sys/vfs.h>
  #include <sys/t_lock.h>         /* for <sys/callb.h> */
  #include <sys/callb.h>
  #include <sys/clconf.h>
*** 2277,2286 ****
--- 2281,2341 ----
          if (lock) {
                  while (lock->l_vnode == vp) {
                          if (IS_REMOTE(lock)) {
                                  result = 1;
                                  goto done;
+                         }
+                         lock = lock->l_next;
+                 }
+         }
+ 
+ done:
+         mutex_exit(&gp->gp_mutex);
+         return (result);
+ }
+ 
+ /*
+  * Determine whether there are any locks for the given vnode with a remote
+  * sysid matching given sysid.
+  * Used by the new (open source) NFS Lock Manager (NLM)
+  */
+ int
+ flk_has_remote_locks_for_sysid(vnode_t *vp, int sysid)
+ {
+         lock_descriptor_t *lock;
+         int result = 0;
+         graph_t *gp;
+ 
+         if (sysid == 0)
+                 return (0);
+ 
+         gp = flk_get_lock_graph(vp, FLK_USE_GRAPH);
+         if (gp == NULL) {
+                 return (0);
+         }
+ 
+         mutex_enter(&gp->gp_mutex);
+ 
+         SET_LOCK_TO_FIRST_ACTIVE_VP(gp, lock, vp);
+ 
+         if (lock) {
+                 while (lock->l_vnode == vp) {
+                         if (lock->l_flock.l_sysid == sysid) {
+                                 result = 1;
+                                 goto done;
+                         }
+                         lock = lock->l_next;
+                 }
+         }
+ 
+         SET_LOCK_TO_FIRST_SLEEP_VP(gp, lock, vp);
+ 
+         if (lock) {
+                 while (lock->l_vnode == vp) {
+                         if (lock->l_flock.l_sysid == sysid) {
+                                 result = 1;
+                                 goto done;
                          }
                          lock = lock->l_next;
                  }
          }