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e2ec4119 JS |
1 | #!/usr/bin/env python |
2 | # | |
3 | # Test persistent bitmap resizing. | |
4 | # | |
5 | # Copyright (c) 2019 John Snow for Red Hat, Inc. | |
6 | # | |
7 | # This program is free software; you can redistribute it and/or modify | |
8 | # it under the terms of the GNU General Public License as published by | |
9 | # the Free Software Foundation; either version 2 of the License, or | |
10 | # (at your option) any later version. | |
11 | # | |
12 | # This program is distributed in the hope that it will be useful, | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | # GNU General Public License for more details. | |
16 | # | |
17 | # You should have received a copy of the GNU General Public License | |
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | # | |
20 | # owner=jsnow@redhat.com | |
21 | ||
22 | import iotests | |
23 | from iotests import log | |
24 | ||
25 | iotests.verify_image_format(supported_fmts=['qcow2']) | |
26 | size = 64 * 1024 * 1024 * 1024 | |
27 | gran_small = 32 * 1024 | |
28 | gran_large = 128 * 1024 | |
29 | ||
30 | def query_bitmaps(vm): | |
31 | res = vm.qmp("query-block") | |
32 | return { "bitmaps": { device['device']: device.get('dirty-bitmaps', []) for | |
33 | device in res['return'] } } | |
34 | ||
35 | with iotests.FilePath('img') as img_path, \ | |
36 | iotests.VM() as vm: | |
37 | ||
38 | log('--- Preparing image & VM ---\n') | |
39 | iotests.qemu_img_create('-f', iotests.imgfmt, img_path, str(size)) | |
40 | vm.add_drive(img_path) | |
41 | ||
42 | ||
43 | log('--- 1st Boot (Establish Baseline Image) ---\n') | |
44 | vm.launch() | |
45 | ||
46 | log('\n--- Adding bitmaps Small, Medium, Large, and Transient ---\n') | |
47 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", | |
48 | name="Small", granularity=gran_small, persistent=True) | |
49 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", | |
50 | name="Medium", persistent=True) | |
51 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", | |
52 | name="Large", granularity=gran_large, persistent=True) | |
53 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", | |
54 | name="Transient", persistent=False) | |
55 | ||
56 | log('--- Forcing flush of bitmaps to disk ---\n') | |
57 | log(query_bitmaps(vm), indent=2) | |
58 | vm.shutdown() | |
59 | ||
60 | ||
61 | log('--- 2nd Boot (Grow Image) ---\n') | |
62 | vm.launch() | |
63 | log(query_bitmaps(vm), indent=2) | |
64 | ||
65 | log('--- Adding new bitmap, growing image, and adding 2nd new bitmap ---') | |
66 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", | |
67 | name="New", persistent=True) | |
68 | vm.qmp_log("human-monitor-command", | |
69 | command_line="block_resize drive0 70G") | |
70 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", | |
71 | name="Newtwo", persistent=True) | |
72 | log(query_bitmaps(vm), indent=2) | |
73 | ||
74 | log('--- Forcing flush of bitmaps to disk ---\n') | |
75 | vm.shutdown() | |
76 | ||
77 | ||
78 | log('--- 3rd Boot (Shrink Image) ---\n') | |
79 | vm.launch() | |
80 | log(query_bitmaps(vm), indent=2) | |
81 | ||
82 | log('--- Adding "NewB" bitmap, removing "New" bitmap ---') | |
83 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", | |
84 | name="NewB", persistent=True) | |
85 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", | |
86 | name="New") | |
87 | ||
88 | log('--- Truncating image ---\n') | |
89 | vm.qmp_log("human-monitor-command", | |
90 | command_line="block_resize drive0 50G") | |
91 | ||
92 | log('--- Adding "NewC" bitmap, removing "NewTwo" bitmap ---') | |
93 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", | |
94 | name="NewC", persistent=True) | |
95 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Newtwo") | |
96 | ||
97 | log('--- Forcing flush of bitmaps to disk ---\n') | |
98 | vm.shutdown() | |
99 | ||
100 | ||
101 | log('--- 4th Boot (Verification and Cleanup) ---\n') | |
102 | vm.launch() | |
103 | log(query_bitmaps(vm), indent=2) | |
104 | ||
105 | log('--- Removing all Bitmaps ---\n') | |
106 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Small") | |
107 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Medium") | |
108 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Large") | |
109 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="NewB") | |
110 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="NewC") | |
111 | log(query_bitmaps(vm), indent=2) | |
112 | ||
113 | log('\n--- Done ---') | |
114 | vm.shutdown() |