| #!/usr/bin/env python3 |
| # group: rw quick |
| # |
| # Test persistent bitmap resizing. |
| # |
| # Copyright (c) 2019 John Snow for 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/>. |
| # |
| # owner=jsnow@redhat.com |
| |
| import iotests |
| from iotests import log |
| |
| iotests.script_initialize(supported_fmts=['qcow2']) |
| size = 64 * 1024 * 1024 * 1024 |
| gran_small = 32 * 1024 |
| gran_large = 128 * 1024 |
| |
| def query_bitmaps(vm): |
| res = vm.qmp("query-block") |
| return { "bitmaps": { device['device']: device.get('dirty-bitmaps', []) for |
| device in res['return'] } } |
| |
| with iotests.FilePath('img') as img_path, \ |
| iotests.VM() as vm: |
| |
| log('--- Preparing image & VM ---\n') |
| iotests.qemu_img_create('-f', iotests.imgfmt, img_path, str(size)) |
| vm.add_drive(img_path) |
| |
| |
| log('--- 1st Boot (Establish Baseline Image) ---\n') |
| vm.launch() |
| |
| log('\n--- Adding bitmaps Small, Medium, Large, and Transient ---\n') |
| vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| name="Small", granularity=gran_small, persistent=True) |
| vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| name="Medium", persistent=True) |
| vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| name="Large", granularity=gran_large, persistent=True) |
| vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| name="Transient", persistent=False) |
| |
| log('--- Forcing flush of bitmaps to disk ---\n') |
| log(query_bitmaps(vm), indent=2) |
| vm.shutdown() |
| |
| |
| log('--- 2nd Boot (Grow Image) ---\n') |
| vm.launch() |
| log(query_bitmaps(vm), indent=2) |
| |
| log('--- Adding new bitmap, growing image, and adding 2nd new bitmap ---') |
| vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| name="New", persistent=True) |
| vm.qmp_log("human-monitor-command", |
| command_line="block_resize drive0 70G") |
| vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| name="Newtwo", persistent=True) |
| log(query_bitmaps(vm), indent=2) |
| |
| log('--- Forcing flush of bitmaps to disk ---\n') |
| vm.shutdown() |
| |
| |
| log('--- 3rd Boot (Shrink Image) ---\n') |
| vm.launch() |
| log(query_bitmaps(vm), indent=2) |
| |
| log('--- Adding "NewB" bitmap, removing "New" bitmap ---') |
| vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| name="NewB", persistent=True) |
| vm.qmp_log("block-dirty-bitmap-remove", node="drive0", |
| name="New") |
| |
| log('--- Truncating image ---\n') |
| vm.qmp_log("human-monitor-command", |
| command_line="block_resize drive0 50G") |
| |
| log('--- Adding "NewC" bitmap, removing "NewTwo" bitmap ---') |
| vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| name="NewC", persistent=True) |
| vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Newtwo") |
| |
| log('--- Forcing flush of bitmaps to disk ---\n') |
| vm.shutdown() |
| |
| |
| log('--- 4th Boot (Verification and Cleanup) ---\n') |
| vm.launch() |
| log(query_bitmaps(vm), indent=2) |
| |
| log('--- Removing all Bitmaps ---\n') |
| vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Small") |
| vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Medium") |
| vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Large") |
| vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="NewB") |
| vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="NewC") |
| log(query_bitmaps(vm), indent=2) |
| |
| log('\n--- Done ---') |
| vm.shutdown() |