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>

*** 24,34 ****
  # 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
  . $STF_SUITE/tests/functional/reservation/reservation.shlib
  
--- 24,34 ----
  # 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
  . $STF_SUITE/tests/functional/reservation/reservation.shlib
  
*** 55,67 ****
  function cleanup
  {
          typeset -i loop=0
          while (($loop < $RESV_NUM_FS)); do
                  datasetexists $TESTPOOL/${TESTFS}$loop && \
!                     log_must $ZFS destroy -f $TESTPOOL/${TESTFS}$loop
  
!                 [[ -d ${TESTDIR}$loop ]] && log_must $RM -r ${TESTDIR}$loop
  
                  ((loop = loop + 1))
          done
  }
  
--- 55,67 ----
  function cleanup
  {
          typeset -i loop=0
          while (($loop < $RESV_NUM_FS)); do
                  datasetexists $TESTPOOL/${TESTFS}$loop && \
!                     log_must zfs destroy -f $TESTPOOL/${TESTFS}$loop
  
!                 [[ -d ${TESTDIR}$loop ]] && log_must rm -r ${TESTDIR}$loop
  
                  ((loop = loop + 1))
          done
  }
  
*** 90,100 ****
  # Note we don't set a reservation on the first filesystem we created,
  # hence num=1 rather than zero below.
  #
  typeset -i num=1
  while (($num < $RESV_NUM_FS)); do
!         log_must $ZFS set reservation=$resv_size_set $TESTPOOL/$TESTFS$num
          ((num = num + 1))
  done
  
  space_avail_still=`get_prop available $TESTPOOL`
  
--- 90,100 ----
  # Note we don't set a reservation on the first filesystem we created,
  # hence num=1 rather than zero below.
  #
  typeset -i num=1
  while (($num < $RESV_NUM_FS)); do
!         log_must zfs set reservation=$resv_size_set $TESTPOOL/$TESTFS$num
          ((num = num + 1))
  done
  
  space_avail_still=`get_prop available $TESTPOOL`
  
*** 104,124 ****
  # Now fill up the first filesystem (which doesn't have a reservation set
  # and thus will use up whatever free space is left in the pool).
  num=0
  log_note "Writing to $TESTDIR$num/$TESTFILE1"
  
! $FILE_WRITE -o create -f $TESTDIR$num/$TESTFILE1 -b $BLOCK_SIZE \
      -c $write_count -d 0
  ret=$?
  if (($ret != $ENOSPC)); then
          log_fail "Did not get ENOSPC as expected (got $ret)."
  fi
  
  # Remove the reservation on one of the other filesystems and verify
  # can write more data to the original non-reservation filesystem.
  num=1
! log_must $ZFS set reservation=none $TESTPOOL/${TESTFS}$num
  num=0
! log_must $FILE_WRITE -o create -f ${TESTDIR}$num/$TESTFILE2 -b $PAGESIZE \
      -c 1000 -d 0
  
  log_pass "reducing reservation allows other datasets to use space"
--- 104,124 ----
  # Now fill up the first filesystem (which doesn't have a reservation set
  # and thus will use up whatever free space is left in the pool).
  num=0
  log_note "Writing to $TESTDIR$num/$TESTFILE1"
  
! file_write -o create -f $TESTDIR$num/$TESTFILE1 -b $BLOCK_SIZE \
      -c $write_count -d 0
  ret=$?
  if (($ret != $ENOSPC)); then
          log_fail "Did not get ENOSPC as expected (got $ret)."
  fi
  
  # Remove the reservation on one of the other filesystems and verify
  # can write more data to the original non-reservation filesystem.
  num=1
! log_must zfs set reservation=none $TESTPOOL/${TESTFS}$num
  num=0
! log_must file_write -o create -f ${TESTDIR}$num/$TESTFILE2 -b pagesize \
      -c 1000 -d 0
  
  log_pass "reducing reservation allows other datasets to use space"