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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2020 SUSE Linux Products GmbH. All Rights Reserved.
#
# FS QA Test 212
#
# Test if unmounting a fs with balance canceled can lead to crash.
# This needs CONFIG_BTRFS_DEBUG compiled, which adds extra unmount time self-test
#
. ./common/preamble
_begin_fstest auto balance dangerous
# Override the default cleanup function.
_cleanup()
{
cd /
rm -f $tmp.*
kill $balance_pid &> /dev/null
kill $cancel_pid &> /dev/null
"$KILLALL_PROG" -q $FSSTRESS_PROG &> /dev/null
$BTRFS_UTIL_PROG balance cancel $SCRATCH_MNT &> /dev/null
wait
}
. ./common/filter
_supported_fs btrfs
_require_scratch
_require_command "$KILLALL_PROG" killall
_scratch_mkfs >> $seqres.full
_scratch_mount
runtime=15
balance_workload()
{
trap "wait; exit" SIGTERM
while true; do
_run_btrfs_balance_start &> /dev/null
done
}
cancel_workload()
{
trap "wait; exit" SIGTERM
while true; do
$BTRFS_UTIL_PROG balance cancel $SCRATCH_MNT &> /dev/null
sleep 2
done
}
$FSSTRESS_PROG -d $SCRATCH_MNT -w -n 100000 >> $seqres.full 2>/dev/null &
balance_workload &
balance_pid=$!
cancel_workload &
cancel_pid=$!
sleep $runtime
kill $balance_pid
kill $cancel_pid
"$KILLALL_PROG" -q $FSSTRESS_PROG &> /dev/null
$BTRFS_UTIL_PROG balance cancel $SCRATCH_MNT &> /dev/null
wait
echo "Silence is golden"
# success, all done
status=0
exit
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