From nobody Sun Oct 5 21:12:24 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1530582303744114.73923021406006; Mon, 2 Jul 2018 18:45:03 -0700 (PDT) Received: from localhost ([::1]:37274 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1faAN9-0001Ss-Nh for importer@patchew.org; Mon, 02 Jul 2018 21:44:51 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35503) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1faAGJ-0004nX-M8 for qemu-devel@nongnu.org; Mon, 02 Jul 2018 21:37:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1faAGH-0005Bw-94 for qemu-devel@nongnu.org; Mon, 02 Jul 2018 21:37:47 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:40634 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1faAGB-000578-Gl; Mon, 02 Jul 2018 21:37:39 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1760F40267CE; Tue, 3 Jul 2018 01:37:39 +0000 (UTC) Received: from red.redhat.com (ovpn-122-121.rdu2.redhat.com [10.10.122.121]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8AEE92026D76; Tue, 3 Jul 2018 01:37:38 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Date: Mon, 2 Jul 2018 20:37:28 -0500 Message-Id: <20180703013730.55375-5-eblake@redhat.com> In-Reply-To: <20180703013730.55375-1-eblake@redhat.com> References: <20180703013730.55375-1-eblake@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Tue, 03 Jul 2018 01:37:39 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Tue, 03 Jul 2018 01:37:39 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'eblake@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PULL 4/6] iotests: add 222 to test basic fleecing X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , John Snow , "open list:Block layer core" , Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: John Snow Signed-off-by: John Snow Message-Id: <20180702194630.9360-3-jsnow@redhat.com> Reviewed-by: Eric Blake Signed-off-by: Eric Blake --- tests/qemu-iotests/222 | 155 +++++++++++++++++++++++++++++++++++++++++= ++++ tests/qemu-iotests/222.out | 67 ++++++++++++++++++++ tests/qemu-iotests/group | 1 + 3 files changed, 223 insertions(+) create mode 100644 tests/qemu-iotests/222 create mode 100644 tests/qemu-iotests/222.out diff --git a/tests/qemu-iotests/222 b/tests/qemu-iotests/222 new file mode 100644 index 00000000000..ff3bfc14701 --- /dev/null +++ b/tests/qemu-iotests/222 @@ -0,0 +1,155 @@ +#!/usr/bin/env python +# +# This test covers the basic fleecing workflow, which provides a +# point-in-time snapshot of a node that can be queried over NBD. +# +# Copyright (C) 2018 Red Hat, Inc. +# John helped, too. +# +# 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 . +# +# Creator/Owner: John Snow + +import iotests +from iotests import log, qemu_img, qemu_io, qemu_io_silent + +iotests.verify_platform(['linux']) + +patterns =3D [("0x5d", "0", "64k"), + ("0xd5", "1M", "64k"), + ("0xdc", "32M", "64k"), + ("0xcd", "0x3ff0000", "64k")] # 64M - 64K + +overwrite =3D [("0xab", "0", "64k"), # Full overwrite + ("0xad", "0x00f8000", "64k"), # Partial-left (1M-32K) + ("0x1d", "0x2008000", "64k"), # Partial-right (32M+32K) + ("0xea", "0x3fe0000", "64k")] # Adjacent-left (64M - 128K) + +zeroes =3D [("0", "0x00f8000", "32k"), # Left-end of partial-left (1M-32K) + ("0", "0x2010000", "32k"), # Right-end of partial-right (32M+64K) + ("0", "0x3fe0000", "64k")] # overwrite[3] + +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] + +with iotests.FilePath('base.img') as base_img_path, \ + iotests.FilePath('fleece.img') as fleece_img_path, \ + iotests.FilePath('nbd.sock') as nbd_sock_path, \ + iotests.VM() as vm: + + log('--- Setting up images ---') + log('') + + assert qemu_img('create', '-f', iotests.imgfmt, base_img_path, '64M') = =3D=3D 0 + assert qemu_img('create', '-f', "qcow2", fleece_img_path, '64M') =3D= =3D 0 + + for p in patterns: + qemu_io('-f', iotests.imgfmt, + '-c', 'write -P%s %s %s' % p, base_img_path) + + log('Done') + + log('') + log('--- Launching VM ---') + log('') + + vm.add_drive(base_img_path) + vm.launch() + log('Done') + + log('') + log('--- Setting up Fleecing Graph ---') + log('') + + src_node =3D "drive0" + tgt_node =3D "fleeceNode" + + # create tgt_node backed by src_node + log(vm.qmp("blockdev-add", **{ + "driver": "qcow2", + "node-name": tgt_node, + "file": { + "driver": "file", + "filename": fleece_img_path, + }, + "backing": src_node, + })) + + # Establish COW from source to fleecing node + log(vm.qmp("blockdev-backup", + device=3Dsrc_node, + target=3Dtgt_node, + sync=3D"none")) + + log('') + log('--- Setting up NBD Export ---') + log('') + + nbd_uri =3D 'nbd+unix:///%s?socket=3D%s' % (tgt_node, nbd_sock_path) + log(vm.qmp("nbd-server-start", + **{"addr": { "type": "unix", + "data": { "path": nbd_sock_path } } })) + + log(vm.qmp("nbd-server-add", device=3Dtgt_node)) + + log('') + log('--- Sanity Check ---') + log('') + + for p in (patterns + zeroes): + cmd =3D "read -P%s %s %s" % p + log(cmd) + assert qemu_io_silent('-r', '-f', 'raw', '-c', cmd, nbd_uri) =3D= =3D 0 + + log('') + log('--- Testing COW ---') + log('') + + for p in overwrite: + cmd =3D "write -P%s %s %s" % p + log(cmd) + log(vm.hmp_qemu_io(src_node, cmd)) + + log('') + log('--- Verifying Data ---') + log('') + + for p in (patterns + zeroes): + cmd =3D "read -P%s %s %s" % p + log(cmd) + assert qemu_io_silent('-r', '-f', 'raw', '-c', cmd, nbd_uri) =3D= =3D 0 + + log('') + log('--- Cleanup ---') + log('') + + log(vm.qmp('block-job-cancel', device=3Dsrc_node)) + log(vm.event_wait('BLOCK_JOB_CANCELLED'), + filters=3D[iotests.filter_qmp_event]) + log(vm.qmp('nbd-server-stop')) + log(vm.qmp('blockdev-del', node_name=3Dtgt_node)) + vm.shutdown() + + log('') + log('--- Confirming writes ---') + log('') + + for p in (overwrite + remainder): + cmd =3D "read -P%s %s %s" % p + log(cmd) + assert qemu_io_silent(base_img_path, '-c', cmd) =3D=3D 0 + + log('') + log('Done') diff --git a/tests/qemu-iotests/222.out b/tests/qemu-iotests/222.out new file mode 100644 index 00000000000..48f336a02b5 --- /dev/null +++ b/tests/qemu-iotests/222.out @@ -0,0 +1,67 @@ +--- Setting up images --- + +Done + +--- Launching VM --- + +Done + +--- Setting up Fleecing Graph --- + +{u'return': {}} +{u'return': {}} + +--- Setting up NBD Export --- + +{u'return': {}} +{u'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 +{u'return': u''} +write -P0xad 0x00f8000 64k +{u'return': u''} +write -P0x1d 0x2008000 64k +{u'return': u''} +write -P0xea 0x3fe0000 64k +{u'return': u''} + +--- 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 --- + +{u'return': {}} +{u'timestamp': {u'seconds': 'SECS', u'microseconds': 'USECS'}, u'data': {u= 'device': u'drive0', u'type': u'backup', u'speed': 0, u'len': 67108864, u'o= ffset': 393216}, u'event': u'BLOCK_JOB_CANCELLED'} +{u'return': {}} +{u'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 diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group index eea75819d2a..8019a9f721f 100644 --- a/tests/qemu-iotests/group +++ b/tests/qemu-iotests/group @@ -220,3 +220,4 @@ 218 rw auto quick 219 rw auto 221 rw auto quick +222 rw auto quick --=20 2.14.4