4374 dn_free_ranges should use range_tree_t
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Max Grossman <max.grossman@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com
Reviewed by: Garrett D'Amore <garrett@damore.org>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Dan McDonald <danmcd@omniti.com>

*** 18,28 ****
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2013 by Delphix. All rights reserved.
   */
  
  #include <sys/zio.h>
  #include <sys/spa.h>
  #include <sys/dmu.h>
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
   */
  
  #include <sys/zio.h>
  #include <sys/spa.h>
  #include <sys/dmu.h>
*** 372,382 ****
          zap->zap_object = obj;
          zap->zap_dbuf = db;
  
          if (*(uint64_t *)db->db_data != ZBT_MICRO) {
                  mutex_init(&zap->zap_f.zap_num_entries_mtx, 0, 0, 0);
!                 zap->zap_f.zap_block_shift = highbit(db->db_size) - 1;
          } else {
                  zap->zap_ismicro = TRUE;
          }
  
          /*
--- 372,382 ----
          zap->zap_object = obj;
          zap->zap_dbuf = db;
  
          if (*(uint64_t *)db->db_data != ZBT_MICRO) {
                  mutex_init(&zap->zap_f.zap_num_entries_mtx, 0, 0, 0);
!                 zap->zap_f.zap_block_shift = highbit64(db->db_size) - 1;
          } else {
                  zap->zap_ismicro = TRUE;
          }
  
          /*