15a2b18fe5
This adds a test for having multiple BlockBackends in one BDS tree. In this case, there is one BB for the protocol BDS and one BB for the format BDS in a simple two-BDS tree (with the protocol BDS and BB added first). When bdrv_close_all() is executed, no cached data from any BDS should be lost; the protocol BDS may not be closed until the format BDS is closed. Otherwise, metadata updates may be lost. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
87 lines
2.1 KiB
Bash
Executable file
87 lines
2.1 KiB
Bash
Executable file
#!/bin/bash
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#
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# Test case for shared BDS between backend trees
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#
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# Copyright (C) 2016 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# creator
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owner=mreitz@redhat.com
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seq="$(basename $0)"
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echo "QA output created by $seq"
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here="$PWD"
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tmp=/tmp/$$
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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. ./common.qemu
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_supported_fmt qcow2
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_supported_proto file
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_supported_os Linux
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_make_test_img 64k
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_launch_qemu
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_send_qemu_cmd $QEMU_HANDLE \
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"{ 'execute': 'qmp_capabilities' }" \
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'return'
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_send_qemu_cmd $QEMU_HANDLE \
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"{ 'execute': 'blockdev-add',
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'arguments': { 'options': { 'id': 'protocol',
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'driver': 'file',
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'filename': '$TEST_IMG' } } }" \
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'return'
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_send_qemu_cmd $QEMU_HANDLE \
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"{ 'execute': 'blockdev-add',
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'arguments': { 'options': { 'id': 'format',
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'driver': '$IMGFMT',
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'file': 'protocol' } } }" \
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'return'
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_send_qemu_cmd $QEMU_HANDLE \
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"{ 'execute': 'human-monitor-command',
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'arguments': { 'command-line': 'qemu-io format \"write -P 42 0 64k\"' } }" \
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'return'
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_send_qemu_cmd $QEMU_HANDLE \
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"{ 'execute': 'quit' }" \
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'return'
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wait=1 _cleanup_qemu
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_check_test_img
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$QEMU_IO -c 'read -P 42 0 64k' "$TEST_IMG" | _filter_qemu_io
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# success, all done
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echo '*** done'
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rm -f $seq.full
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status=0
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