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dkim=none (message not signed) header.d=none;nongnu.org; dmarc=none action=none header.from=virtuozzo.com; From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, eblake@redhat.com, armbru@redhat.com, crosa@redhat.com, ehabkost@redhat.com, berrange@redhat.com, pbonzini@redhat.com, vsementsov@virtuozzo.com, jsnow@redhat.com, mreitz@redhat.com, kwolf@redhat.com, den@openvz.org Subject: [PATCH v2 33/33] iotests/image-fleecing: add test-case for copy-before-write filter Date: Thu, 20 May 2021 17:22:05 +0300 Message-Id: <20210520142205.607501-34-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210520142205.607501-1-vsementsov@virtuozzo.com> References: <20210520142205.607501-1-vsementsov@virtuozzo.com> Content-Transfer-Encoding: quoted-printable X-Originating-IP: [185.215.60.197] X-ClientProxiedBy: HE1P190CA0034.EURP190.PROD.OUTLOOK.COM (2603:10a6:7:52::23) To AM7PR08MB5494.eurprd08.prod.outlook.com (2603:10a6:20b:dc::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 80999eb3-285f-44fb-afa8-08d91b9acb72 X-MS-TrafficTypeDiagnostic: AM6PR08MB4072: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:635; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=40.107.1.124; envelope-from=vsementsov@virtuozzo.com; helo=EUR02-HE1-obe.outbound.protection.outlook.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @virtuozzo.com) Content-Type: text/plain; charset="utf-8" New fleecing method becomes available: copy-before-write filter. Actually we don't need backup job to setup image fleecing. Add test for new recommended way of image fleecing. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Max Reitz --- tests/qemu-iotests/tests/image-fleecing | 50 +++++++++----- tests/qemu-iotests/tests/image-fleecing.out | 72 +++++++++++++++++++++ 2 files changed, 107 insertions(+), 15 deletions(-) diff --git a/tests/qemu-iotests/tests/image-fleecing b/tests/qemu-iotests/t= ests/image-fleecing index e210c00d28..404ebc00f1 100755 --- a/tests/qemu-iotests/tests/image-fleecing +++ b/tests/qemu-iotests/tests/image-fleecing @@ -48,7 +48,7 @@ remainder =3D [('0xd5', '0x108000', '32k'), # Right-end = of partial-left [1] ('0xdc', '32M', '32k'), # Left-end of partial-right [2] ('0xcd', '0x3ff0000', '64k')] # patterns[3] =20 -def do_test(base_img_path, fleece_img_path, nbd_sock_path, vm): +def do_test(use_cbw, base_img_path, fleece_img_path, nbd_sock_path, vm): log('--- Setting up images ---') log('') =20 @@ -67,6 +67,7 @@ def do_test(base_img_path, fleece_img_path, nbd_sock_path= , vm): =20 src_node =3D 'source' tmp_node =3D 'temp' + qom_path =3D '/machine/peripheral/sda' vm.add_blockdev(f'driver=3D{iotests.imgfmt},file.driver=3Dfile,' f'file.filename=3D{base_img_path},node-name=3D{src_nod= e}') vm.add_device('virtio-scsi') @@ -90,12 +91,22 @@ def do_test(base_img_path, fleece_img_path, nbd_sock_pa= th, vm): 'backing': src_node, })) =20 - # Establish COW from source to fleecing node - log(vm.qmp('blockdev-backup', - job_id=3D'fleecing', - device=3Dsrc_node, - target=3Dtmp_node, - sync=3D'none')) + # Establish CBW from source to fleecing node + if use_cbw: + log(vm.qmp('blockdev-add', **{ + 'driver': 'copy-before-write', + 'node-name': 'fl-cbw', + 'file': src_node, + 'target': tmp_node + })) + + log(vm.qmp('qom-set', path=3Dqom_path, property=3D'drive', value= =3D'fl-cbw')) + else: + log(vm.qmp('blockdev-backup', + job_id=3D'fleecing', + device=3Dsrc_node, + target=3Dtmp_node, + sync=3D'none')) =20 log('') log('--- Setting up NBD Export ---') @@ -124,7 +135,7 @@ def do_test(base_img_path, fleece_img_path, nbd_sock_pa= th, vm): for p in overwrite: cmd =3D 'write -P%s %s %s' % p log(cmd) - log(vm.hmp_qemu_io('/machine/peripheral/sda', cmd, qdev=3DTrue)) + log(vm.hmp_qemu_io(qom_path, cmd, qdev=3DTrue)) =20 log('') log('--- Verifying Data ---') @@ -139,10 +150,15 @@ def do_test(base_img_path, fleece_img_path, nbd_sock_= path, vm): log('--- Cleanup ---') log('') =20 - log(vm.qmp('block-job-cancel', device=3D'fleecing')) - e =3D vm.event_wait('BLOCK_JOB_CANCELLED') - assert e is not None - log(e, filters=3D[iotests.filter_qmp_event]) + if use_cbw: + log(vm.qmp('qom-set', path=3Dqom_path, property=3D'drive', value= =3Dsrc_node)) + log(vm.qmp('blockdev-del', node_name=3D'fl-cbw')) + else: + log(vm.qmp('block-job-cancel', device=3D'fleecing')) + e =3D vm.event_wait('BLOCK_JOB_CANCELLED') + assert e is not None + log(e, filters=3D[iotests.filter_qmp_event]) + log(vm.qmp('nbd-server-stop')) log(vm.qmp('blockdev-del', node_name=3Dtmp_node)) vm.shutdown() @@ -160,13 +176,17 @@ def do_test(base_img_path, fleece_img_path, nbd_sock_= path, vm): log('Done') =20 =20 -def test(): +def test(use_cbw): with iotests.FilePath('base.img') as base_img_path, \ iotests.FilePath('fleece.img') as fleece_img_path, \ iotests.FilePath('nbd.sock', base_dir=3Diotests.sock_dir) as nbd_sock_path, \ iotests.VM() as vm: - do_test(base_img_path, fleece_img_path, nbd_sock_path, vm) + do_test(use_cbw, base_img_path, fleece_img_path, nbd_sock_path, vm) + =20 +log('=3D=3D=3D Test backup(sync=3Dnone) based fleecing =3D=3D=3D\n') +test(False) =20 -test() +log('=3D=3D=3D Test filter based fleecing =3D=3D=3D\n') +test(True) diff --git a/tests/qemu-iotests/tests/image-fleecing.out b/tests/qemu-iotes= ts/tests/image-fleecing.out index 314a1b54e9..e96d122a8b 100644 --- a/tests/qemu-iotests/tests/image-fleecing.out +++ b/tests/qemu-iotests/tests/image-fleecing.out @@ -1,3 +1,5 @@ +=3D=3D=3D Test backup(sync=3Dnone) based fleecing =3D=3D=3D + --- Setting up images --- =20 Done @@ -65,3 +67,73 @@ read -P0xdc 32M 32k read -P0xcd 0x3ff0000 64k =20 Done +=3D=3D=3D Test filter based fleecing =3D=3D=3D + +--- Setting up images --- + +Done + +--- Launching VM --- + +Done + +--- Setting up Fleecing Graph --- + +{"return": {}} +{"return": {}} +{"return": {}} + +--- Setting up NBD Export --- + +{"return": {}} +{"return": {}} + +--- Sanity Check --- + +read -P0x5d 0 64k +read -P0xd5 1M 64k +read -P0xdc 32M 64k +read -P0xcd 0x3ff0000 64k +read -P0 0x00f8000 32k +read -P0 0x2010000 32k +read -P0 0x3fe0000 64k + +--- Testing COW --- + +write -P0xab 0 64k +{"return": ""} +write -P0xad 0x00f8000 64k +{"return": ""} +write -P0x1d 0x2008000 64k +{"return": ""} +write -P0xea 0x3fe0000 64k +{"return": ""} + +--- Verifying Data --- + +read -P0x5d 0 64k +read -P0xd5 1M 64k +read -P0xdc 32M 64k +read -P0xcd 0x3ff0000 64k +read -P0 0x00f8000 32k +read -P0 0x2010000 32k +read -P0 0x3fe0000 64k + +--- Cleanup --- + +{"return": {}} +{"return": {}} +{"return": {}} +{"return": {}} + +--- Confirming writes --- + +read -P0xab 0 64k +read -P0xad 0x00f8000 64k +read -P0x1d 0x2008000 64k +read -P0xea 0x3fe0000 64k +read -P0xd5 0x108000 32k +read -P0xdc 32M 32k +read -P0xcd 0x3ff0000 64k + +Done --=20 2.29.2