iotests: Test multiple blockdev-snapshot calls (b1f6a8e1) · Commits · SUMMER2020 / students / proj-2021291

tests/qemu-iotests/273

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		#!/usr/bin/env bash
		#
		# Test multiple blockdev-snapshot calls with 'backing': null
		#
		# Copyright (C) 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

		# This is a qcow2 regression test
		_supported_fmt qcow2
		_supported_proto file
		_supported_os Linux

		do_run_qemu()
		{
		echo Testing: "$@"
		$QEMU -nographic -qmp-pretty stdio -nodefaults "$@"
		echo
		}

		run_qemu()
		{
		do_run_qemu "$@" 2>&1 \| _filter_testdir \| _filter_qemu \| _filter_qmp \|
		_filter_generated_node_ids \| _filter_imgfmt \| _filter_actual_image_size
		}

		TEST_IMG="$TEST_IMG.base" _make_test_img 64M
		TEST_IMG="$TEST_IMG.mid" _make_test_img -b "$TEST_IMG.base"
		_make_test_img -b "$TEST_IMG.mid"

		run_qemu \
		-blockdev file,node-name=base,filename="$TEST_IMG.base" \
		-blockdev file,node-name=midf,filename="$TEST_IMG.mid" \
		-blockdev '{"driver":"qcow2","node-name":"mid","file":"midf","backing":null}' \
		-blockdev file,node-name=topf,filename="$TEST_IMG" \
		-blockdev '{"driver":"qcow2","file":"topf","node-name":"top","backing":null}' \
		<<EOF
		{"execute":"qmp_capabilities"}
		{"execute":"blockdev-snapshot","arguments":{"node":"base","overlay":"mid"}}
		{"execute":"blockdev-snapshot","arguments":{"node":"mid","overlay":"top"}}
		{"execute":"query-named-block-nodes"}
		{"execute":"x-debug-query-block-graph"}
		{"execute":"quit"}
		EOF

		# success, all done
		echo "*** done"
		rm -f $seq.full
		status=0

tests/qemu-iotests/273.out

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Original line number	Diff line number	Diff line
		QA output created by 273
		Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=67108864
		Formatting 'TEST_DIR/t.IMGFMT.mid', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.base
		Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864 backing_file=TEST_DIR/t.IMGFMT.mid
		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}
		{
		QMP_VERSION
		}
		{
		"return": {
		}
		}
		{
		"return": {
		}
		}
		{
		"return": {
		}
		}
		{
		"return": [
		{
		"iops_rd": 0,
		"detect_zeroes": "off",
		"image": {
		"backing-image": {
		"backing-image": {
		"virtual-size": 197120,
		"filename": "TEST_DIR/t.IMGFMT.base",
		"format": "file",
		"actual-size": SIZE,
		"dirty-flag": false
		},
		"backing-filename-format": "file",
		"virtual-size": 67108864,
		"filename": "TEST_DIR/t.IMGFMT.mid",
		"cluster-size": 65536,
		"format": "IMGFMT",
		"actual-size": SIZE,
		"format-specific": {
		"type": "IMGFMT",
		"data": {
		"compat": "1.1",
		"lazy-refcounts": false,
		"refcount-bits": 16,
		"corrupt": false
		}
		},
		"full-backing-filename": "TEST_DIR/t.IMGFMT.base",
		"backing-filename": "TEST_DIR/t.IMGFMT.base",
		"dirty-flag": false
		},
		"backing-filename-format": "IMGFMT",
		"virtual-size": 67108864,
		"filename": "TEST_DIR/t.IMGFMT",
		"cluster-size": 65536,
		"format": "IMGFMT",
		"actual-size": SIZE,
		"format-specific": {
		"type": "IMGFMT",
		"data": {
		"compat": "1.1",
		"lazy-refcounts": false,
		"refcount-bits": 16,
		"corrupt": false
		}
		},
		"full-backing-filename": "TEST_DIR/t.IMGFMT.mid",
		"backing-filename": "TEST_DIR/t.IMGFMT.mid",
		"dirty-flag": false
		},
		"iops_wr": 0,
		"ro": false,
		"node-name": "top",
		"backing_file_depth": 2,
		"drv": "IMGFMT",
		"iops": 0,
		"bps_wr": 0,
		"write_threshold": 0,
		"backing_file": "TEST_DIR/t.IMGFMT.mid",
		"encrypted": false,
		"bps": 0,
		"bps_rd": 0,
		"cache": {
		"no-flush": false,
		"direct": false,
		"writeback": true
		},
		"file": "TEST_DIR/t.IMGFMT",
		"encryption_key_missing": false
		},
		{
		"iops_rd": 0,
		"detect_zeroes": "off",
		"image": {
		"virtual-size": 197120,
		"filename": "TEST_DIR/t.IMGFMT",
		"format": "file",
		"actual-size": SIZE,
		"dirty-flag": false
		},
		"iops_wr": 0,
		"ro": false,
		"node-name": "topf",
		"backing_file_depth": 0,
		"drv": "file",
		"iops": 0,
		"bps_wr": 0,
		"write_threshold": 0,
		"encrypted": false,
		"bps": 0,
		"bps_rd": 0,
		"cache": {
		"no-flush": false,
		"direct": false,
		"writeback": true
		},
		"file": "TEST_DIR/t.IMGFMT",
		"encryption_key_missing": false
		},
		{
		"iops_rd": 0,
		"detect_zeroes": "off",
		"image": {
		"backing-image": {
		"virtual-size": 197120,
		"filename": "TEST_DIR/t.IMGFMT.base",
		"format": "file",
		"actual-size": SIZE,
		"dirty-flag": false
		},
		"backing-filename-format": "file",
		"virtual-size": 67108864,
		"filename": "TEST_DIR/t.IMGFMT.mid",
		"cluster-size": 65536,
		"format": "IMGFMT",
		"actual-size": SIZE,
		"format-specific": {
		"type": "IMGFMT",
		"data": {
		"compat": "1.1",
		"lazy-refcounts": false,
		"refcount-bits": 16,
		"corrupt": false
		}
		},
		"full-backing-filename": "TEST_DIR/t.IMGFMT.base",
		"backing-filename": "TEST_DIR/t.IMGFMT.base",
		"dirty-flag": false
		},
		"iops_wr": 0,
		"ro": true,
		"node-name": "mid",
		"backing_file_depth": 1,
		"drv": "IMGFMT",
		"iops": 0,
		"bps_wr": 0,
		"write_threshold": 0,
		"backing_file": "TEST_DIR/t.IMGFMT.base",
		"encrypted": false,
		"bps": 0,
		"bps_rd": 0,
		"cache": {
		"no-flush": false,
		"direct": false,
		"writeback": true
		},
		"file": "TEST_DIR/t.IMGFMT.mid",
		"encryption_key_missing": false
		},
		{
		"iops_rd": 0,
		"detect_zeroes": "off",
		"image": {
		"virtual-size": 197120,
		"filename": "TEST_DIR/t.IMGFMT.mid",
		"format": "file",
		"actual-size": SIZE,
		"dirty-flag": false
		},
		"iops_wr": 0,
		"ro": false,
		"node-name": "midf",
		"backing_file_depth": 0,
		"drv": "file",
		"iops": 0,
		"bps_wr": 0,
		"write_threshold": 0,
		"encrypted": false,
		"bps": 0,
		"bps_rd": 0,
		"cache": {
		"no-flush": false,
		"direct": false,
		"writeback": true
		},
		"file": "TEST_DIR/t.IMGFMT.mid",
		"encryption_key_missing": false
		},
		{
		"iops_rd": 0,
		"detect_zeroes": "off",
		"image": {
		"virtual-size": 197120,
		"filename": "TEST_DIR/t.IMGFMT.base",
		"format": "file",
		"actual-size": SIZE,
		"dirty-flag": false
		},
		"iops_wr": 0,
		"ro": true,
		"node-name": "base",
		"backing_file_depth": 0,
		"drv": "file",
		"iops": 0,
		"bps_wr": 0,
		"write_threshold": 0,
		"encrypted": false,
		"bps": 0,
		"bps_rd": 0,
		"cache": {
		"no-flush": false,
		"direct": false,
		"writeback": true
		},
		"file": "TEST_DIR/t.IMGFMT.base",
		"encryption_key_missing": false
		}
		]
		}
		{
		"return": {
		"edges": [
		{
		"name": "file",
		"parent": 5,
		"shared-perm": [
		"graph-mod",
		"write-unchanged",
		"consistent-read"
		],
		"perm": [
		"resize",
		"write",
		"consistent-read"
		],
		"child": 4
		},
		{
		"name": "backing",
		"parent": 5,
		"shared-perm": [
		"graph-mod",
		"resize",
		"write-unchanged",
		"write",
		"consistent-read"
		],
		"perm": [
		],
		"child": 3
		},
		{
		"name": "file",
		"parent": 3,
		"shared-perm": [
		"graph-mod",
		"write-unchanged",
		"consistent-read"
		],
		"perm": [
		"consistent-read"
		],
		"child": 2
		},
		{
		"name": "backing",
		"parent": 3,
		"shared-perm": [
		"graph-mod",
		"resize",
		"write-unchanged",
		"write",
		"consistent-read"
		],
		"perm": [
		],
		"child": 1
		}
		],
		"nodes": [
		{
		"name": "top",
		"type": "block-driver",
		"id": 5
		},
		{
		"name": "topf",
		"type": "block-driver",
		"id": 4
		},
		{
		"name": "mid",
		"type": "block-driver",
		"id": 3
		},
		{
		"name": "midf",
		"type": "block-driver",
		"id": 2
		},
		{
		"name": "base",
		"type": "block-driver",
		"id": 1
		}
		]
		}
		}
		{
		"return": {
		}
		}
		{
		"timestamp": {
		"seconds": TIMESTAMP,
		"microseconds": TIMESTAMP
		},
		"event": "SHUTDOWN",
		"data": {
		"guest": false,
		"reason": "host-qmp-quit"
		}
		}

		*** done

tests/qemu-iotests/group

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		@@ -284,3 +284,4 @@
		268 rw auto quick
		270 rw backing quick
		272 rw
		273 backing quick