iotests: Test multiple blockdev-snapshot calls
Test that doing a second blockdev-snapshot doesn't make the first overlay's backing file go away. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Kevin Wolf
parent
ae0f57f0aa
commit
b1f6a8e180
76
tests/qemu-iotests/273
Executable file
76
tests/qemu-iotests/273
Executable file
@ -0,0 +1,76 @@
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#!/usr/bin/env bash
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#
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# Test multiple blockdev-snapshot calls with 'backing': null
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#
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# Copyright (C) 2019 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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seq=$(basename "$0")
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echo "QA output created by $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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# This is a qcow2 regression test
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_supported_fmt qcow2
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_supported_proto file
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_supported_os Linux
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do_run_qemu()
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{
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echo Testing: "$@"
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$QEMU -nographic -qmp-pretty stdio -nodefaults "$@"
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echo
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}
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run_qemu()
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{
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do_run_qemu "$@" 2>&1 | _filter_testdir | _filter_qemu | _filter_qmp |
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_filter_generated_node_ids | _filter_imgfmt | _filter_actual_image_size
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}
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TEST_IMG="$TEST_IMG.base" _make_test_img 64M
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TEST_IMG="$TEST_IMG.mid" _make_test_img -b "$TEST_IMG.base"
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_make_test_img -b "$TEST_IMG.mid"
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run_qemu \
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-blockdev file,node-name=base,filename="$TEST_IMG.base" \
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-blockdev file,node-name=midf,filename="$TEST_IMG.mid" \
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-blockdev '{"driver":"qcow2","node-name":"mid","file":"midf","backing":null}' \
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-blockdev file,node-name=topf,filename="$TEST_IMG" \
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-blockdev '{"driver":"qcow2","file":"topf","node-name":"top","backing":null}' \
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<<EOF
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{"execute":"qmp_capabilities"}
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{"execute":"blockdev-snapshot","arguments":{"node":"base","overlay":"mid"}}
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{"execute":"blockdev-snapshot","arguments":{"node":"mid","overlay":"top"}}
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{"execute":"query-named-block-nodes"}
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{"execute":"x-debug-query-block-graph"}
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{"execute":"quit"}
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EOF
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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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337
tests/qemu-iotests/273.out
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337
tests/qemu-iotests/273.out
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@ -0,0 +1,337 @@
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QA output created by 273
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Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
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Formatting 'TEST_DIR/t.IMGFMT.mid', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.mid
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Testing: -blockdev file,node-name=base,filename=TEST_DIR/t.IMGFMT.base -blockdev file,node-name=midf,filename=TEST_DIR/t.IMGFMT.mid -blockdev {"driver":"IMGFMT","node-name":"mid","file":"midf","backing":null} -blockdev file,node-name=topf,filename=TEST_DIR/t.IMGFMT -blockdev {"driver":"IMGFMT","file":"topf","node-name":"top","backing":null}
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{
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QMP_VERSION
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}
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{
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"return": {
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}
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}
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{
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"return": {
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}
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}
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{
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"return": {
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}
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}
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{
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"return": [
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{
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"iops_rd": 0,
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"detect_zeroes": "off",
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"image": {
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"backing-image": {
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"backing-image": {
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"virtual-size": 197120,
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"filename": "TEST_DIR/t.IMGFMT.base",
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"format": "file",
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"actual-size": SIZE,
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"dirty-flag": false
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},
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"backing-filename-format": "file",
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"virtual-size": 67108864,
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"filename": "TEST_DIR/t.IMGFMT.mid",
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"cluster-size": 65536,
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"format": "IMGFMT",
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"actual-size": SIZE,
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"format-specific": {
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"type": "IMGFMT",
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"data": {
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"compat": "1.1",
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"lazy-refcounts": false,
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"refcount-bits": 16,
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"corrupt": false
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}
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},
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"full-backing-filename": "TEST_DIR/t.IMGFMT.base",
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"backing-filename": "TEST_DIR/t.IMGFMT.base",
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"dirty-flag": false
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},
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"backing-filename-format": "IMGFMT",
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"virtual-size": 67108864,
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"filename": "TEST_DIR/t.IMGFMT",
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"cluster-size": 65536,
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"format": "IMGFMT",
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"actual-size": SIZE,
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"format-specific": {
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"type": "IMGFMT",
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"data": {
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"compat": "1.1",
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"lazy-refcounts": false,
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"refcount-bits": 16,
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"corrupt": false
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}
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},
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"full-backing-filename": "TEST_DIR/t.IMGFMT.mid",
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"backing-filename": "TEST_DIR/t.IMGFMT.mid",
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"dirty-flag": false
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},
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"iops_wr": 0,
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"ro": false,
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"node-name": "top",
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"backing_file_depth": 2,
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"drv": "IMGFMT",
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"iops": 0,
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"bps_wr": 0,
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"write_threshold": 0,
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"backing_file": "TEST_DIR/t.IMGFMT.mid",
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"encrypted": false,
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"bps": 0,
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"bps_rd": 0,
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"cache": {
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"no-flush": false,
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"direct": false,
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"writeback": true
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},
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"file": "TEST_DIR/t.IMGFMT",
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"encryption_key_missing": false
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},
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{
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"iops_rd": 0,
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"detect_zeroes": "off",
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"image": {
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"virtual-size": 197120,
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"filename": "TEST_DIR/t.IMGFMT",
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"format": "file",
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"actual-size": SIZE,
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"dirty-flag": false
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},
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"iops_wr": 0,
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"ro": false,
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"node-name": "topf",
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"backing_file_depth": 0,
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"drv": "file",
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"iops": 0,
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"bps_wr": 0,
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"write_threshold": 0,
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"encrypted": false,
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"bps": 0,
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"bps_rd": 0,
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"cache": {
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"no-flush": false,
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"direct": false,
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"writeback": true
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},
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"file": "TEST_DIR/t.IMGFMT",
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"encryption_key_missing": false
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},
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{
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"iops_rd": 0,
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"detect_zeroes": "off",
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"image": {
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"backing-image": {
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"virtual-size": 197120,
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"filename": "TEST_DIR/t.IMGFMT.base",
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"format": "file",
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"actual-size": SIZE,
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"dirty-flag": false
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},
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"backing-filename-format": "file",
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"virtual-size": 67108864,
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"filename": "TEST_DIR/t.IMGFMT.mid",
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"cluster-size": 65536,
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"format": "IMGFMT",
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"actual-size": SIZE,
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"format-specific": {
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"type": "IMGFMT",
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"data": {
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"compat": "1.1",
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"lazy-refcounts": false,
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"refcount-bits": 16,
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"corrupt": false
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}
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},
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"full-backing-filename": "TEST_DIR/t.IMGFMT.base",
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"backing-filename": "TEST_DIR/t.IMGFMT.base",
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"dirty-flag": false
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},
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"iops_wr": 0,
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"ro": true,
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"node-name": "mid",
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"backing_file_depth": 1,
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"drv": "IMGFMT",
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"iops": 0,
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"bps_wr": 0,
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"write_threshold": 0,
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"backing_file": "TEST_DIR/t.IMGFMT.base",
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"encrypted": false,
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"bps": 0,
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"bps_rd": 0,
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"cache": {
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"no-flush": false,
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"direct": false,
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"writeback": true
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},
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"file": "TEST_DIR/t.IMGFMT.mid",
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"encryption_key_missing": false
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},
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{
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"iops_rd": 0,
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"detect_zeroes": "off",
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"image": {
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"virtual-size": 197120,
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"filename": "TEST_DIR/t.IMGFMT.mid",
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"format": "file",
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"actual-size": SIZE,
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"dirty-flag": false
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},
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"iops_wr": 0,
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"ro": false,
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"node-name": "midf",
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"backing_file_depth": 0,
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"drv": "file",
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"iops": 0,
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"bps_wr": 0,
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"write_threshold": 0,
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"encrypted": false,
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"bps": 0,
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"bps_rd": 0,
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"cache": {
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"no-flush": false,
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"direct": false,
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"writeback": true
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},
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"file": "TEST_DIR/t.IMGFMT.mid",
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"encryption_key_missing": false
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},
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{
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"iops_rd": 0,
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"detect_zeroes": "off",
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"image": {
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"virtual-size": 197120,
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"filename": "TEST_DIR/t.IMGFMT.base",
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"format": "file",
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"actual-size": SIZE,
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"dirty-flag": false
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},
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"iops_wr": 0,
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"ro": true,
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"node-name": "base",
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"backing_file_depth": 0,
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"drv": "file",
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"iops": 0,
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"bps_wr": 0,
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"write_threshold": 0,
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"encrypted": false,
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"bps": 0,
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"bps_rd": 0,
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"cache": {
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"no-flush": false,
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"direct": false,
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"writeback": true
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},
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"file": "TEST_DIR/t.IMGFMT.base",
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"encryption_key_missing": false
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}
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]
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}
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{
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"return": {
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"edges": [
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{
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"name": "file",
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"parent": 5,
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"shared-perm": [
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"graph-mod",
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"write-unchanged",
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"consistent-read"
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],
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"perm": [
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"resize",
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"write",
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"consistent-read"
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],
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"child": 4
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},
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{
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"name": "backing",
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"parent": 5,
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"shared-perm": [
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"graph-mod",
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"resize",
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"write-unchanged",
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"write",
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"consistent-read"
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],
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"perm": [
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],
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"child": 3
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},
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{
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"name": "file",
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"parent": 3,
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"shared-perm": [
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"graph-mod",
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"write-unchanged",
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"consistent-read"
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],
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"perm": [
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"consistent-read"
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],
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"child": 2
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},
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{
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"name": "backing",
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"parent": 3,
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"shared-perm": [
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"graph-mod",
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"resize",
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"write-unchanged",
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"write",
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"consistent-read"
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],
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"perm": [
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],
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"child": 1
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}
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],
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"nodes": [
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{
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"name": "top",
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"type": "block-driver",
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"id": 5
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},
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{
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"name": "topf",
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"type": "block-driver",
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"id": 4
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},
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{
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"name": "mid",
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"type": "block-driver",
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"id": 3
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},
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{
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"name": "midf",
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"type": "block-driver",
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"id": 2
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},
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{
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"name": "base",
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"type": "block-driver",
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"id": 1
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}
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]
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}
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}
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{
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"return": {
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}
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}
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{
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"timestamp": {
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"seconds": TIMESTAMP,
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"microseconds": TIMESTAMP
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},
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"event": "SHUTDOWN",
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"data": {
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"guest": false,
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"reason": "host-qmp-quit"
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}
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}
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*** done
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@ -284,3 +284,4 @@
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268 rw auto quick
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270 rw backing quick
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272 rw
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273 backing quick
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Block a user