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.
   */
  
  #ifndef _SYS_DNODE_H
  #define _SYS_DNODE_H
  
--- 18,28 ----
   *
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
!  * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
   */
  
  #ifndef _SYS_DNODE_H
  #define _SYS_DNODE_H
  
*** 196,206 ****
          list_node_t dn_dirty_link[TXG_SIZE];    /* next on dataset's dirty */
  
          /* protected by dn_mtx: */
          kmutex_t dn_mtx;
          list_t dn_dirty_records[TXG_SIZE];
!         avl_tree_t dn_ranges[TXG_SIZE];
          uint64_t dn_allocated_txg;
          uint64_t dn_free_txg;
          uint64_t dn_assigned_txg;
          kcondvar_t dn_notxholds;
          enum dnode_dirtycontext dn_dirtyctx;
--- 196,206 ----
          list_node_t dn_dirty_link[TXG_SIZE];    /* next on dataset's dirty */
  
          /* protected by dn_mtx: */
          kmutex_t dn_mtx;
          list_t dn_dirty_records[TXG_SIZE];
!         struct range_tree *dn_free_ranges[TXG_SIZE];
          uint64_t dn_allocated_txg;
          uint64_t dn_free_txg;
          uint64_t dn_assigned_txg;
          kcondvar_t dn_notxholds;
          enum dnode_dirtycontext dn_dirtyctx;
*** 278,289 ****
  void dnode_byteswap(dnode_phys_t *dnp);
  void dnode_buf_byteswap(void *buf, size_t size);
  void dnode_verify(dnode_t *dn);
  int dnode_set_blksz(dnode_t *dn, uint64_t size, int ibs, dmu_tx_t *tx);
  void dnode_free_range(dnode_t *dn, uint64_t off, uint64_t len, dmu_tx_t *tx);
- void dnode_clear_range(dnode_t *dn, uint64_t blkid,
-     uint64_t nblks, dmu_tx_t *tx);
  void dnode_diduse_space(dnode_t *dn, int64_t space);
  void dnode_willuse_space(dnode_t *dn, int64_t space, dmu_tx_t *tx);
  void dnode_new_blkid(dnode_t *dn, uint64_t blkid, dmu_tx_t *tx, boolean_t);
  uint64_t dnode_block_freed(dnode_t *dn, uint64_t blkid);
  void dnode_init(void);
--- 278,287 ----