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.
   * Copyright (c) 2011 Nexenta Systems, Inc. All rights reserved.
   * Copyright 2013 Joyent, Inc. All rights reserved.
   */
  
  #include <sys/zfs_context.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.
   * Copyright (c) 2011 Nexenta Systems, Inc. All rights reserved.
   * Copyright 2013 Joyent, Inc. All rights reserved.
   */
  
  #include <sys/zfs_context.h>
*** 1264,1274 ****
                          zio_taskq_dispatch(zio, ZIO_TASKQ_ISSUE, cut);
                          return;
                  }
  
                  zio->io_stage = stage;
!                 rv = zio_pipeline[highbit(stage) - 1](zio);
  
                  if (rv == ZIO_PIPELINE_STOP)
                          return;
  
                  ASSERT(rv == ZIO_PIPELINE_CONTINUE);
--- 1264,1274 ----
                          zio_taskq_dispatch(zio, ZIO_TASKQ_ISSUE, cut);
                          return;
                  }
  
                  zio->io_stage = stage;
!                 rv = zio_pipeline[highbit64(stage) - 1](zio);
  
                  if (rv == ZIO_PIPELINE_STOP)
                          return;
  
                  ASSERT(rv == ZIO_PIPELINE_CONTINUE);