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 <mre...@redhat.com> --- tests/qemu-iotests/117 | 86 ++++++++++++++++++++++++++++++++++++++++++++++ tests/qemu-iotests/117.out | 14 ++++++++ tests/qemu-iotests/group | 1 + 3 files changed, 101 insertions(+) create mode 100755 tests/qemu-iotests/117 create mode 100644 tests/qemu-iotests/117.out diff --git a/tests/qemu-iotests/117 b/tests/qemu-iotests/117 new file mode 100755 index 0000000..7881fc7 --- /dev/null +++ b/tests/qemu-iotests/117 @@ -0,0 +1,86 @@ +#!/bin/bash +# +# Test case for shared BDS between backend trees +# +# Copyright (C) 2015 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/>. +# + +# creator +owner=mre...@redhat.com + +seq="$(basename $0)" +echo "QA output created by $seq" + +here="$PWD" +tmp=/tmp/$$ +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 +. ./common.qemu + +_supported_fmt qcow2 +_supported_proto file +_supported_os Linux + +_make_test_img 64k + +_launch_qemu + +_send_qemu_cmd $QEMU_HANDLE \ + "{ 'execute': 'qmp_capabilities' }" \ + 'return' + +_send_qemu_cmd $QEMU_HANDLE \ + "{ 'execute': 'blockdev-add', + 'arguments': { 'options': { 'id': 'protocol', + 'driver': 'file', + 'filename': '$TEST_IMG' } } }" \ + 'return' + +_send_qemu_cmd $QEMU_HANDLE \ + "{ 'execute': 'blockdev-add', + 'arguments': { 'options': { 'id': 'format', + 'driver': '$IMGFMT', + 'file': 'protocol' } } }" \ + 'return' + +_send_qemu_cmd $QEMU_HANDLE \ + "{ 'execute': 'human-monitor-command', + 'arguments': { 'command-line': 'qemu-io format \"write -P 42 0 64k\"' } }" \ + 'return' + +_send_qemu_cmd $QEMU_HANDLE \ + "{ 'execute': 'quit' }" \ + 'return' + +wait=1 _cleanup_qemu + +_check_test_img + +$QEMU_IO -c 'read -P 42 0 64k' "$TEST_IMG" | _filter_qemu_io + +# success, all done +echo '*** done' +rm -f $seq.full +status=0 diff --git a/tests/qemu-iotests/117.out b/tests/qemu-iotests/117.out new file mode 100644 index 0000000..f52dc1a --- /dev/null +++ b/tests/qemu-iotests/117.out @@ -0,0 +1,14 @@ +QA output created by 117 +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=65536 +{"return": {}} +{"return": {}} +{"return": {}} +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +{"return": ""} +{"return": {}} +{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN"} +No errors were found on the image. +read 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +*** done diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index 1508d9b..86a9cd4 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -119,4 +119,5 @@ 113 rw auto quick 114 rw auto quick 116 rw auto quick +117 rw auto 118 rw auto -- 2.1.0
