8115 parallel zfs mount

*** 20,30 ****
   */
  
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2011 Pawel Jakub Dawidek. All rights reserved.
!  * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
   * Copyright (c) 2012, Joyent, Inc. All rights reserved.
   * Copyright (c) 2013 Steven Hartland. All rights reserved.
   * Copyright (c) 2014 Integros [integros.com]
   * Copyright 2016 Nexenta Systems, Inc.
   * Copyright (c) 2017 Datto Inc.
--- 20,30 ----
   */
  
  /*
   * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2011 Pawel Jakub Dawidek. All rights reserved.
!  * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
   * Copyright (c) 2012, Joyent, Inc. All rights reserved.
   * Copyright (c) 2013 Steven Hartland. All rights reserved.
   * Copyright (c) 2014 Integros [integros.com]
   * Copyright 2016 Nexenta Systems, Inc.
   * Copyright (c) 2017 Datto Inc.
*** 558,573 ****
  
  typedef struct get_all_cb {
          zfs_handle_t    **cb_handles;
          size_t          cb_alloc;
          size_t          cb_used;
-         boolean_t       cb_verbose;
-         int             (*cb_getone)(zfs_handle_t *, void *);
  } get_all_cb_t;
  
  void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *);
- int libzfs_dataset_cmp(const void *, const void *);
  
  /*
   * Functions to create and destroy datasets.
   */
  extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t,
--- 558,572 ----
  
  typedef struct get_all_cb {
          zfs_handle_t    **cb_handles;
          size_t          cb_alloc;
          size_t          cb_used;
  } get_all_cb_t;
  
+ void zfs_foreach_mountpoint(libzfs_handle_t *, zfs_handle_t **, size_t,
+     zfs_iter_f, void *, boolean_t);
  void libzfs_add_handle(get_all_cb_t *, zfs_handle_t *);
  
  /*
   * Functions to create and destroy datasets.
   */
  extern int zfs_create(libzfs_handle_t *, const char *, zfs_type_t,