6536 zfs send: want a way to disable sending of free records
Reviewed by: Alexander Stetsenko <astetsenko@racktopsystems.com>
Reviewed by: Kim Shrier <kshrier@racktopsystems.com>

          --- old/usr/src/uts/common/fs/zfs/sys/dmu_send.h
          +++ new/usr/src/uts/common/fs/zfs/sys/dmu_send.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  /*
  23   23   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  24   24   * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
  25   25   * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  26   26   * Copyright (c) 2013, Joyent, Inc. All rights reserved.
       27 + * Copyright 2015 RackTop Systems.
  27   28   */
  28   29  
  29   30  #ifndef _DMU_SEND_H
  30   31  #define _DMU_SEND_H
  31   32  
  32   33  #include <sys/inttypes.h>
  33   34  #include <sys/spa.h>
  34   35  
  35   36  struct vnode;
  36   37  struct dsl_dataset;
  37   38  struct drr_begin;
  38   39  struct avl_tree;
  39   40  struct dmu_replay_record;
  40   41  
  41   42  extern const char *recv_clone_name;
  42   43  
  43   44  int dmu_send(const char *tosnap, const char *fromsnap, boolean_t embedok,
  44      -    boolean_t large_block_ok, int outfd, uint64_t resumeobj, uint64_t resumeoff,
  45      -    struct vnode *vp, offset_t *off);
       45 +    boolean_t large_block_ok, boolean_t skip_free, int outfd,
       46 +    uint64_t resumeobj, uint64_t resumeoff, struct vnode *vp, offset_t *off);
  46   47  int dmu_send_estimate(struct dsl_dataset *ds, struct dsl_dataset *fromds,
  47   48      uint64_t *sizep);
  48   49  int dmu_send_estimate_from_txg(struct dsl_dataset *ds, uint64_t fromtxg,
  49   50      uint64_t *sizep);
  50   51  int dmu_send_obj(const char *pool, uint64_t tosnap, uint64_t fromsnap,
  51      -    boolean_t embedok, boolean_t large_block_ok,
       52 +    boolean_t embedok, boolean_t large_block_ok, boolean_t skip_free,
  52   53      int outfd, struct vnode *vp, offset_t *off);
  53   54  
  54   55  typedef struct dmu_recv_cookie {
  55   56          struct dsl_dataset *drc_ds;
  56   57          struct dmu_replay_record *drc_drr_begin;
  57   58          struct drr_begin *drc_drrb;
  58   59          const char *drc_tofs;
  59   60          const char *drc_tosnap;
  60   61          boolean_t drc_newfs;
  61   62          boolean_t drc_byteswap;

  62   63          boolean_t drc_force;
  63   64          boolean_t drc_resumable;
  64   65          struct avl_tree *drc_guid_to_ds_map;
  65   66          zio_cksum_t drc_cksum;
  66   67          uint64_t drc_newsnapobj;
  67   68          void *drc_owner;
  68   69          cred_t *drc_cred;
  69   70  } dmu_recv_cookie_t;
  70   71  
  71   72  int dmu_recv_begin(char *tofs, char *tosnap,
  72   73      struct dmu_replay_record *drr_begin,
  73   74      boolean_t force, boolean_t resumable, char *origin, dmu_recv_cookie_t *drc);
  74   75  int dmu_recv_stream(dmu_recv_cookie_t *drc, struct vnode *vp, offset_t *voffp,
  75   76      int cleanup_fd, uint64_t *action_handlep);
  76   77  int dmu_recv_end(dmu_recv_cookie_t *drc, void *owner);
  77   78  boolean_t dmu_objset_is_receiving(objset_t *os);
  78   79  
  79   80  #endif /* _DMU_SEND_H */

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