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#!/usr/bin/env bash
#
# Test qemu-img vs. unaligned images
# (See also 253, which is the O_DIRECT version)
#
# Copyright (C) 2018-2019 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
seq="$(basename $0)"
echo "QA output created by $seq"
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt raw
_supported_proto file
_supported_os Linux
_default_cache_mode writeback
_supported_cache_modes writeback writethrough unsafe
echo
echo "=== Check mapping of unaligned raw image ==="
echo
_make_test_img 65537 # qemu-img create rounds size up
$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
truncate --size=65537 "$TEST_IMG" # so we resize it and check again
$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
$QEMU_IO -c 'w 65536 1' "$TEST_IMG" | _filter_qemu_io # writing also rounds up
$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
truncate --size=65537 "$TEST_IMG" # so we resize it and check again
$QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
# success, all done
echo '*** done'
rm -f $seq.full
status=0
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