2882 implement libzfs_core
2883 changing "canmount" property to "on" should not always remount dataset
2900 "zfs snapshot" should be able to create multiple, arbitrary snapshots at once
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Chris Siden <christopher.siden@delphix.com>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Bill Pijewski <wdp@joyent.com>
Reviewed by: Dan Kruchinin <dan.kruchinin@gmail.com>

*** 20,29 ****
--- 20,32 ----
   */
  /*
   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
+ /*
+  * Copyright (c) 2012 by Delphix. All rights reserved.
+  */
  
  #include <sys/refcount.h>
  #include <sys/rrwlock.h>
  
  /*
*** 260,264 ****
--- 263,277 ----
          }
          mutex_exit(&rrl->rr_lock);
  
          return (held);
  }
+ 
+ void
+ rrw_tsd_destroy(void *arg)
+ {
+         rrw_node_t *rn = arg;
+         if (rn != NULL) {
+                 panic("thread %p terminating with rrw lock %p held",
+                     (void *)curthread, (void *)rn->rn_rrl);
+         }
+ }