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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Facebook. All Rights Reserved.
#
# FS QA Test 494
#
# Test truncation/hole punching of an active swapfile.
#
. ./common/preamble
_begin_fstest auto quick swap punch
. ./common/filter
_supported_fs generic
_require_scratch_swapfile
_require_xfs_io_command "fpunch"
echo "Format and mount"
_scratch_mkfs > $seqres.full 2>&1
_scratch_mount >> $seqres.full 2>&1
testdir="$SCRATCH_MNT/test-$seq"
mkdir "$testdir"
blocks=160
blksz=65536
echo "Initialize file"
_format_swapfile "$testdir/file1" $((blocks * blksz)) > /dev/null
swapon "$testdir/file1"
echo "Try to truncate"
$XFS_IO_PROG -c "truncate $blksz" "$testdir/file1"
echo "Try to punch hole"
$XFS_IO_PROG -c "fpunch $blksz $((2 * blksz))" "$testdir/file1"
echo "Tear it down"
swapoff "$testdir/file1"
status=0
exit
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