246 (4178B)
1 #!/usr/bin/env python3 2 # group: rw quick 3 # 4 # Test persistent bitmap resizing. 5 # 6 # Copyright (c) 2019 John Snow for Red Hat, Inc. 7 # 8 # This program is free software; you can redistribute it and/or modify 9 # it under the terms of the GNU General Public License as published by 10 # the Free Software Foundation; either version 2 of the License, or 11 # (at your option) any later version. 12 # 13 # This program is distributed in the hope that it will be useful, 14 # but WITHOUT ANY WARRANTY; without even the implied warranty of 15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 # GNU General Public License for more details. 17 # 18 # You should have received a copy of the GNU General Public License 19 # along with this program. If not, see <http://www.gnu.org/licenses/>. 20 # 21 # owner=jsnow@redhat.com 22 23 import iotests 24 from iotests import log 25 26 iotests.script_initialize(supported_fmts=['qcow2'], 27 unsupported_imgopts=['compat']) 28 size = 64 * 1024 * 1024 * 1024 29 gran_small = 32 * 1024 30 gran_large = 128 * 1024 31 32 def query_bitmaps(vm): 33 res = vm.qmp("query-block") 34 return { "bitmaps": { device['device']: device.get('inserted', {}) 35 .get('dirty-bitmaps', []) for 36 device in res['return'] } } 37 38 with iotests.FilePath('img') as img_path, \ 39 iotests.VM() as vm: 40 41 log('--- Preparing image & VM ---\n') 42 iotests.qemu_img_create('-f', iotests.imgfmt, img_path, str(size)) 43 vm.add_drive(img_path) 44 45 46 log('--- 1st Boot (Establish Baseline Image) ---\n') 47 vm.launch() 48 49 log('\n--- Adding bitmaps Small, Medium, Large, and Transient ---\n') 50 vm.qmp_log("block-dirty-bitmap-add", node="drive0", 51 name="Small", granularity=gran_small, persistent=True) 52 vm.qmp_log("block-dirty-bitmap-add", node="drive0", 53 name="Medium", persistent=True) 54 vm.qmp_log("block-dirty-bitmap-add", node="drive0", 55 name="Large", granularity=gran_large, persistent=True) 56 vm.qmp_log("block-dirty-bitmap-add", node="drive0", 57 name="Transient", persistent=False) 58 59 log('--- Forcing flush of bitmaps to disk ---\n') 60 log(query_bitmaps(vm), indent=2) 61 vm.shutdown() 62 63 64 log('--- 2nd Boot (Grow Image) ---\n') 65 vm.launch() 66 log(query_bitmaps(vm), indent=2) 67 68 log('--- Adding new bitmap, growing image, and adding 2nd new bitmap ---') 69 vm.qmp_log("block-dirty-bitmap-add", node="drive0", 70 name="New", persistent=True) 71 vm.qmp_log("human-monitor-command", 72 command_line="block_resize drive0 70G") 73 vm.qmp_log("block-dirty-bitmap-add", node="drive0", 74 name="Newtwo", persistent=True) 75 log(query_bitmaps(vm), indent=2) 76 77 log('--- Forcing flush of bitmaps to disk ---\n') 78 vm.shutdown() 79 80 81 log('--- 3rd Boot (Shrink Image) ---\n') 82 vm.launch() 83 log(query_bitmaps(vm), indent=2) 84 85 log('--- Adding "NewB" bitmap, removing "New" bitmap ---') 86 vm.qmp_log("block-dirty-bitmap-add", node="drive0", 87 name="NewB", persistent=True) 88 vm.qmp_log("block-dirty-bitmap-remove", node="drive0", 89 name="New") 90 91 log('--- Truncating image ---\n') 92 vm.qmp_log("human-monitor-command", 93 command_line="block_resize drive0 50G") 94 95 log('--- Adding "NewC" bitmap, removing "NewTwo" bitmap ---') 96 vm.qmp_log("block-dirty-bitmap-add", node="drive0", 97 name="NewC", persistent=True) 98 vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Newtwo") 99 100 log('--- Forcing flush of bitmaps to disk ---\n') 101 vm.shutdown() 102 103 104 log('--- 4th Boot (Verification and Cleanup) ---\n') 105 vm.launch() 106 log(query_bitmaps(vm), indent=2) 107 108 log('--- Removing all Bitmaps ---\n') 109 vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Small") 110 vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Medium") 111 vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Large") 112 vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="NewB") 113 vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="NewC") 114 log(query_bitmaps(vm), indent=2) 115 116 log('\n--- Done ---') 117 vm.shutdown()