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>

*** 22,31 ****
--- 22,32 ----
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
   * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
   * Copyright (c) 2013, Joyent, Inc. All rights reserved.
+  * Copyright 2015 RackTop Systems.
   */
  
  #ifndef _DMU_SEND_H
  #define _DMU_SEND_H
  
*** 39,56 ****
  struct dmu_replay_record;
  
  extern const char *recv_clone_name;
  
  int dmu_send(const char *tosnap, const char *fromsnap, boolean_t embedok,
!     boolean_t large_block_ok, int outfd, uint64_t resumeobj, uint64_t resumeoff,
!     struct vnode *vp, offset_t *off);
  int dmu_send_estimate(struct dsl_dataset *ds, struct dsl_dataset *fromds,
      uint64_t *sizep);
  int dmu_send_estimate_from_txg(struct dsl_dataset *ds, uint64_t fromtxg,
      uint64_t *sizep);
  int dmu_send_obj(const char *pool, uint64_t tosnap, uint64_t fromsnap,
!     boolean_t embedok, boolean_t large_block_ok,
      int outfd, struct vnode *vp, offset_t *off);
  
  typedef struct dmu_recv_cookie {
          struct dsl_dataset *drc_ds;
          struct dmu_replay_record *drc_drr_begin;
--- 40,57 ----
  struct dmu_replay_record;
  
  extern const char *recv_clone_name;
  
  int dmu_send(const char *tosnap, const char *fromsnap, boolean_t embedok,
!     boolean_t large_block_ok, boolean_t skip_free, int outfd,
!     uint64_t resumeobj, uint64_t resumeoff, struct vnode *vp, offset_t *off);
  int dmu_send_estimate(struct dsl_dataset *ds, struct dsl_dataset *fromds,
      uint64_t *sizep);
  int dmu_send_estimate_from_txg(struct dsl_dataset *ds, uint64_t fromtxg,
      uint64_t *sizep);
  int dmu_send_obj(const char *pool, uint64_t tosnap, uint64_t fromsnap,
!     boolean_t embedok, boolean_t large_block_ok, boolean_t skip_free,
      int outfd, struct vnode *vp, offset_t *off);
  
  typedef struct dmu_recv_cookie {
          struct dsl_dataset *drc_ds;
          struct dmu_replay_record *drc_drr_begin;