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#!/bin/bash
# Copyright 2017 Matthew Thode
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
if [[ "${DIB_DEBUG_TRACE:-0}" -gt 0 ]]; then
set -x
fi
set -eu
set -o pipefail
# unmount tmpfs
# care about anything still using it
[[ ! -e /run/lock/shm_fixed ]] && exit 0 # shm hasn't been modified
umount /dev/shm
if fuser /dev/shm; then
rmdir /dev/shm
fi
if [[ -e /dev/shm.orig ]]; then
mv /dev/shm.orig /dev/shm
fi
rm /run/lock/shm_fixed
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