2619 asynchronous destruction of ZFS file systems
2747 SPA versioning with zfs feature flags
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <gwilson@delphix.com>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Reviewed by: Dan Kruchinin <dan.kruchinin@gmail.com>
Approved by: Dan McDonald <danmcd@nexenta.com>

*** 18,27 ****
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
+  * Copyright (c) 2012 by Delphix. All rights reserved.
   */
  
  #ifndef _SYS_DSL_SCAN_H
  #define _SYS_DSL_SCAN_H
  
*** 77,86 ****
--- 78,90 ----
          boolean_t scn_pausing;
          uint64_t scn_restart_txg;
          uint64_t scn_sync_start_time;
          zio_t *scn_zio_root;
  
+         /* for freeing blocks */
+         boolean_t scn_is_bptree;
+ 
          /* for debugging / information */
          uint64_t scn_visited_this_txg;
  
          dsl_scan_phys_t scn_phys;
  } dsl_scan_t;