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>

*** 19,29 ****
   * CDDL HEADER END
   */
  
  /*
   * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2013 by Delphix. All rights reserved.
   */
  
  #include <sys/zfs_context.h>
  #include <sys/spa.h>
  #include <sys/spa_impl.h>
--- 19,29 ----
   * CDDL HEADER END
   */
  
  /*
   * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
   */
  
  #include <sys/zfs_context.h>
  #include <sys/spa.h>
  #include <sys/spa_impl.h>
*** 400,410 ****
          ddt_histogram_t *ddh;
          int bucket;
  
          ddt_stat_generate(ddt, dde, &dds);
  
!         bucket = highbit(dds.dds_ref_blocks) - 1;
          ASSERT(bucket >= 0);
  
          ddh = &ddt->ddt_histogram[dde->dde_type][dde->dde_class];
  
          ddt_stat_add(&ddh->ddh_stat[bucket], &dds, neg);
--- 400,410 ----
          ddt_histogram_t *ddh;
          int bucket;
  
          ddt_stat_generate(ddt, dde, &dds);
  
!         bucket = highbit64(dds.dds_ref_blocks) - 1;
          ASSERT(bucket >= 0);
  
          ddh = &ddt->ddt_histogram[dde->dde_type][dde->dde_class];
  
          ddt_stat_add(&ddh->ddh_stat[bucket], &dds, neg);