7290 ZFS test suite needs to control what utilities it can run
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>

*** 23,33 ****
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  
  #
! # Copyright (c) 2013 by Delphix. All rights reserved.
  #
  
  . $STF_SUITE/include/libtest.shlib
  
  export USEDTEST=$TESTPOOL/$TESTFS/usedtest-snapused
--- 23,33 ----
  # Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  
  #
! # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
  #
  
  . $STF_SUITE/include/libtest.shlib
  
  export USEDTEST=$TESTPOOL/$TESTFS/usedtest-snapused
*** 53,63 ****
  }
  
  function check_used # dataset
  {
          typeset dataset=$1
!         for child in $($ZFS list -rH -t filesystem,volume -o name $dataset)
          do
                  _check_used $child
          done
  }
  
--- 53,63 ----
  }
  
  function check_used # dataset
  {
          typeset dataset=$1
!         for child in $(zfs list -rH -t filesystem,volume -o name $dataset)
          do
                  _check_used $child
          done
  }
  
*** 64,74 ****
  function check_usedbychildren # dataset
  {
          typeset dataset=$1
          typeset -i usedbychildren_sum=0
          typeset -i parent_usedbychildren=0
!         for child in $($ZFS list -rH -t filesystem,volume -o name $dataset)
          do
                  if [[ "$(get_prop type $child)" == "snapshot" ]]; then
                          continue
                  fi
  
--- 64,74 ----
  function check_usedbychildren # dataset
  {
          typeset dataset=$1
          typeset -i usedbychildren_sum=0
          typeset -i parent_usedbychildren=0
!         for child in $(zfs list -rH -t filesystem,volume -o name $dataset)
          do
                  if [[ "$(get_prop type $child)" == "snapshot" ]]; then
                          continue
                  fi
  
*** 118,128 ****
  }
  
  function check_usedbydataset # dataset
  {
          typeset dataset=$1
!         for child in $($ZFS list -rH -t filesystem,volume -o name $dataset)
          do
                  _check_usedbydataset $child
          done
  }
  
--- 118,128 ----
  }
  
  function check_usedbydataset # dataset
  {
          typeset dataset=$1
!         for child in $(zfs list -rH -t filesystem,volume -o name $dataset)
          do
                  _check_usedbydataset $child
          done
  }
  
*** 144,154 ****
  }
  
  function check_usedbyrefreservation # dataset
  {
          typeset dataset=$1
!         for child in $($ZFS list -rH -t filesystem,volume -o name $dataset)
          do
                  _check_usedbyrefreservation $child
          done
  }
  
--- 144,154 ----
  }
  
  function check_usedbyrefreservation # dataset
  {
          typeset dataset=$1
!         for child in $(zfs list -rH -t filesystem,volume -o name $dataset)
          do
                  _check_usedbyrefreservation $child
          done
  }
  
*** 155,165 ****
  function check_usedbysnapshots # dataset
  {
          typeset dataset=$1
          typeset -i usedbysnapshots_sum=0
          typeset -i parent_usedbysnapshots=0
!         for child in $($ZFS list -rH -t filesystem,volume,snapshot -o name $dataset)
          do
                  # parent
                  if [[ "$child" == "$dataset" ]]; then
                          parent_usedbysnapshots=$(get_prop usedbysnapshots $child)
                          continue
--- 155,165 ----
  function check_usedbysnapshots # dataset
  {
          typeset dataset=$1
          typeset -i usedbysnapshots_sum=0
          typeset -i parent_usedbysnapshots=0
!         for child in $(zfs list -rH -t filesystem,volume,snapshot -o name $dataset)
          do
                  # parent
                  if [[ "$child" == "$dataset" ]]; then
                          parent_usedbysnapshots=$(get_prop usedbysnapshots $child)
                          continue