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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Facebook. All Rights Reserved.
#
# FS QA Test 636
#
# Test invalid swap files.
# Empty swap file (only swap header)
#
. ./common/preamble
_begin_fstest auto quick swap
# Import common functions.
. ./common/filter
_supported_fs generic
_require_scratch_swapfile
_require_test_program mkswap
_require_test_program swapon
_scratch_mkfs >> $seqres.full 2>&1
_scratch_mount
touch "$SCRATCH_MNT/swap"
$CHATTR_PROG +C "$SCRATCH_MNT/swap" >> $seqres.full 2>&1
chmod 0600 "$SCRATCH_MNT/swap"
_pwrite_byte 0x61 0 $(_get_page_size) "$SCRATCH_MNT/swap" >> $seqres.full
"$here/src/mkswap" "$SCRATCH_MNT/swap"
"$here/src/swapon" "$SCRATCH_MNT/swap"
swapoff "$SCRATCH_MNT/swap" >/dev/null 2>&1
status=0
exit
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