projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 908eaf68 | 1 | #!/bin/bash |
| 939e1640 KW |
2 | # |
| 3 | # Rebasing COW images | |
| 4 | # | |
| 5 | # Copyright (C) 2009 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 | ||
| 21 | # creator | |
| 22 | owner=kwolf@redhat.com | |
| 23 | ||
| 24 | seq=`basename $0` | |
| 25 | echo "QA output created by $seq" | |
| 26 | ||
| 27 | here=`pwd` | |
| 28 | tmp=/tmp/$$ | |
| 29 | status=1 # failure is the default! | |
| 30 | ||
| 31 | _cleanup() | |
| 32 | { | |
| 33 | _cleanup_test_img | |
| 34 | rm -f $TEST_DIR/t.$IMGFMT.base_old | |
| 35 | rm -f $TEST_DIR/t.$IMGFMT.base_new | |
| 36 | } | |
| 37 | trap "_cleanup; exit \$status" 0 1 2 3 15 | |
| 38 | ||
| 39 | # get standard environment, filters and checks | |
| 40 | . ./common.rc | |
| 41 | . ./common.filter | |
| 42 | . ./common.pattern | |
| 43 | ||
| f5a4bbd9 SH |
44 | # Currently only qcow2 and qed support rebasing |
| 45 | _supported_fmt qcow2 qed | |
| 9cdfa1b3 | 46 | _supported_proto generic |
| 939e1640 KW |
47 | _supported_os Linux |
| 48 | ||
| 49 | CLUSTER_SIZE=65536 | |
| 50 | ||
| 51 | # Cluster allocations to be tested: | |
| 52 | # | |
| 53 | # Backing (old) 11 -- 11 -- 11 -- 11 -- | |
| 54 | # Backing (new) 22 22 -- -- 22 22 -- -- | |
| 55 | # COW image 33 33 33 33 -- -- -- -- | |
| d586bc63 KW |
56 | # |
| 57 | # The pattern is written twice to have both an alloc -> non-alloc and a | |
| 58 | # non-alloc -> alloc transition in the COW image. | |
| 939e1640 KW |
59 | |
| 60 | echo "Creating backing file" | |
| 61 | echo | |
| 62 | ||
| 63 | _make_test_img 1G | |
| dd0c35d6 | 64 | io_pattern writev 0 $CLUSTER_SIZE $((2 * CLUSTER_SIZE)) 8 0x11 |
| 939e1640 KW |
65 | mv $TEST_IMG $TEST_IMG.base_old |
| 66 | ||
| 67 | echo "Creating new backing file" | |
| 68 | echo | |
| 69 | ||
| 70 | _make_test_img 1G | |
| dd0c35d6 | 71 | io_pattern writev 0 $((2 * CLUSTER_SIZE)) $((4 * CLUSTER_SIZE)) 4 0x22 |
| 939e1640 KW |
72 | mv $TEST_IMG $TEST_IMG.base_new |
| 73 | ||
| 74 | echo "Creating COW image" | |
| 75 | echo | |
| 76 | ||
| 77 | _make_test_img -b $TEST_IMG.base_old 1G | |
| 78 | io_pattern writev 0 $((4 * CLUSTER_SIZE)) 0 1 0x33 | |
| d586bc63 | 79 | io_pattern writev $((8 * CLUSTER_SIZE)) $((4 * CLUSTER_SIZE)) 0 1 0x33 |
| 939e1640 KW |
80 | |
| 81 | echo "Read before the rebase to make sure everything is set up correctly" | |
| 82 | echo | |
| 83 | io_pattern readv $((0 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 84 | io_pattern readv $((1 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 85 | io_pattern readv $((2 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 86 | io_pattern readv $((3 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 87 | io_pattern readv $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11 | |
| 88 | io_pattern readv $((5 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00 | |
| 89 | io_pattern readv $((6 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11 | |
| 90 | io_pattern readv $((7 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00 | |
| d586bc63 KW |
91 | io_pattern readv $((8 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 |
| 92 | io_pattern readv $((9 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 93 | io_pattern readv $((10 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 94 | io_pattern readv $((11 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 95 | io_pattern readv $((12 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11 | |
| 96 | io_pattern readv $((13 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00 | |
| 97 | io_pattern readv $((14 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11 | |
| 98 | io_pattern readv $((15 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00 | |
| 939e1640 KW |
99 | |
| 100 | echo | |
| 101 | echo Rebase and test again | |
| 102 | echo | |
| 103 | $QEMU_IMG rebase -b $TEST_IMG.base_new $TEST_IMG | |
| 104 | io_pattern readv $((0 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 105 | io_pattern readv $((1 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 106 | io_pattern readv $((2 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 107 | io_pattern readv $((3 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 108 | io_pattern readv $((4 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11 | |
| 109 | io_pattern readv $((5 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00 | |
| 110 | io_pattern readv $((6 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11 | |
| 111 | io_pattern readv $((7 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00 | |
| d586bc63 KW |
112 | io_pattern readv $((8 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 |
| 113 | io_pattern readv $((9 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 114 | io_pattern readv $((10 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 115 | io_pattern readv $((11 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x33 | |
| 116 | io_pattern readv $((12 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11 | |
| 117 | io_pattern readv $((13 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00 | |
| 118 | io_pattern readv $((14 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x11 | |
| 119 | io_pattern readv $((15 * CLUSTER_SIZE)) $CLUSTER_SIZE 0 1 0x00 | |
| 939e1640 KW |
120 | |
| 121 | ||
| 122 | # success, all done | |
| 123 | echo "*** done" | |
| 124 | rm -f $seq.full | |
| 125 | status=0 |