tests/btrfs/173

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (c) 2018 Facebook.  All Rights Reserved.
   4 #
   5 # FS QA Test 173
   6 #
   7 # Test swap file activation restrictions specific to Btrfs, swap file can't be
   8 # CoW file nor compressed file.
   9 #
  10 seq=`basename $0`
  11 seqres=$RESULT_DIR/$seq
  12 echo "QA output created by $seq"
  13
  14 here=`pwd`
  15 tmp=/tmp/$$
  16 status=1        # failure is the default!
  17 trap "_cleanup; exit \$status" 0 1 2 3 15
  18
  19 _cleanup()
  20 {
  21         cd /
  22         rm -f $tmp.*
  23 }
  24
  25 . ./common/rc
  26 . ./common/filter
  27
  28 rm -f $seqres.full
  29
  30 _supported_fs btrfs
  31 _supported_os Linux
  32 _require_scratch_swapfile
  33
  34 _scratch_mkfs >> $seqres.full 2>&1
  35 _scratch_mount
  36
  37 echo "COW file"
  38 # We can't use _format_swapfile because we don't want chattr +C, and we can't
  39 # unset it after the swap file has been created.
  40 rm -f "$SCRATCH_MNT/swap"
  41 touch "$SCRATCH_MNT/swap"
  42 chmod 0600 "$SCRATCH_MNT/swap"
  43 _pwrite_byte 0x61 0 $(($(get_page_size) * 10)) "$SCRATCH_MNT/swap" >> $seqres.full
  44 $MKSWAP_PROG "$SCRATCH_MNT/swap" >> $seqres.full
  45 swapon "$SCRATCH_MNT/swap" 2>&1 | _filter_scratch
  46 swapoff "$SCRATCH_MNT/swap" >/dev/null 2>&1
  47
  48 echo "Compressed file"
  49 rm -f "$SCRATCH_MNT/swap"
  50 _format_swapfile "$SCRATCH_MNT/swap" $(($(get_page_size) * 10))
  51 $CHATTR_PROG +c "$SCRATCH_MNT/swap"
  52 swapon "$SCRATCH_MNT/swap" 2>&1 | _filter_scratch
  53 swapoff "$SCRATCH_MNT/swap" >/dev/null 2>&1
  54
  55 status=0
  56 exit