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>

*** 20,35 ****
   */
  /*
   * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
  #ifndef _SYS_RR_RW_LOCK_H
  #define _SYS_RR_RW_LOCK_H
  
- #pragma ident   "%Z%%M% %I%     %E% SMI"
- 
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  #include <sys/inttypes.h>
--- 20,36 ----
   */
  /*
   * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
+ /*
+  * Copyright (c) 2012 by Delphix. All rights reserved.
+  */
  
  #ifndef _SYS_RR_RW_LOCK_H
  #define _SYS_RR_RW_LOCK_H
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  #include <sys/inttypes.h>
*** 67,76 ****
--- 68,78 ----
  void rrw_init(rrwlock_t *rrl);
  void rrw_destroy(rrwlock_t *rrl);
  void rrw_enter(rrwlock_t *rrl, krw_t rw, void *tag);
  void rrw_exit(rrwlock_t *rrl, void *tag);
  boolean_t rrw_held(rrwlock_t *rrl, krw_t rw);
+ void rrw_tsd_destroy(void *arg);
  
  #define RRW_READ_HELD(x)        rrw_held(x, RW_READER)
  #define RRW_WRITE_HELD(x)       rrw_held(x, RW_WRITER)
  
  #ifdef  __cplusplus