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>

          --- old/usr/src/uts/common/fs/zfs/sys/dmu_traverse.h
          +++ new/usr/src/uts/common/fs/zfs/sys/dmu_traverse.h

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *

  13   13   * When distributing Covered Code, include this CDDL HEADER in each
  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the
  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *
  19   19   * CDDL HEADER END
  20   20   */
  21   21  /*
  22   22   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
       23 + * Copyright (c) 2012 by Delphix. All rights reserved.
  23   24   */
  24   25  
  25   26  #ifndef _SYS_DMU_TRAVERSE_H
  26   27  #define _SYS_DMU_TRAVERSE_H
  27   28  
  28   29  #include <sys/zfs_context.h>
  29   30  #include <sys/spa.h>
  30   31  #include <sys/zio.h>
  31   32  
  32   33  #ifdef  __cplusplus

  33   34  extern "C" {
  34   35  #endif
  35   36  
  36   37  struct dnode_phys;
  37   38  struct dsl_dataset;
  38   39  struct zilog;
  39   40  struct arc_buf;
  40   41  
  41   42  typedef int (blkptr_cb_t)(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
  42   43      struct arc_buf *pbuf, const zbookmark_t *zb, const struct dnode_phys *dnp,
  43   44      void *arg);
  44   45  
  45   46  #define TRAVERSE_PRE                    (1<<0)
  46   47  #define TRAVERSE_POST                   (1<<1)

  47   48  #define TRAVERSE_PREFETCH_METADATA      (1<<2)
  48   49  #define TRAVERSE_PREFETCH_DATA          (1<<3)
  49   50  #define TRAVERSE_PREFETCH (TRAVERSE_PREFETCH_METADATA | TRAVERSE_PREFETCH_DATA)
  50   51  #define TRAVERSE_HARD                   (1<<4)
  51   52  
  52   53  /* Special traverse error return value to indicate skipping of children */
  53   54  #define TRAVERSE_VISIT_NO_CHILDREN      -1
  54   55  
  55   56  int traverse_dataset(struct dsl_dataset *ds,
  56   57      uint64_t txg_start, int flags, blkptr_cb_t func, void *arg);
       58 +int traverse_dataset_destroyed(spa_t *spa, blkptr_t *blkptr,
       59 +    uint64_t txg_start, zbookmark_t *resume, int flags,
       60 +    blkptr_cb_t func, void *arg);
  57   61  int traverse_pool(spa_t *spa,
  58   62      uint64_t txg_start, int flags, blkptr_cb_t func, void *arg);
  59   63  
  60   64  #ifdef  __cplusplus
  61   65  }
  62   66  #endif
  63   67  
  64   68  #endif /* _SYS_DMU_TRAVERSE_H */
    

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