| 1 | #!/usr/bin/env bash |
| 2 | # group: rw backing auto quick |
| 3 | # |
| 4 | # When using a backing file for the output image in qemu-img convert, |
| 5 | # the backing file clusters must not copied. The data must still be |
| 6 | # read correctly. |
| 7 | # |
| 8 | # Copyright (C) 2009 Red Hat, Inc. |
| 9 | # |
| 10 | # This program is free software; you can redistribute it and/or modify |
| 11 | # it under the terms of the GNU General Public License as published by |
| 12 | # the Free Software Foundation; either version 2 of the License, or |
| 13 | # (at your option) any later version. |
| 14 | # |
| 15 | # This program is distributed in the hope that it will be useful, |
| 16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | # GNU General Public License for more details. |
| 19 | # |
| 20 | # You should have received a copy of the GNU General Public License |
| 21 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 22 | # |
| 23 | |
| 24 | # creator |
| 25 | owner=kwolf@redhat.com |
| 26 | |
| 27 | seq=`basename $0` |
| 28 | echo "QA output created by $seq" |
| 29 | |
| 30 | status=1 # failure is the default! |
| 31 | |
| 32 | _cleanup() |
| 33 | { |
| 34 | _cleanup_test_img |
| 35 | _rm_test_img "$TEST_IMG.base" |
| 36 | _rm_test_img "$TEST_IMG.orig" |
| 37 | } |
| 38 | trap "_cleanup; exit \$status" 0 1 2 3 15 |
| 39 | |
| 40 | # get standard environment, filters and checks |
| 41 | . ./common.rc |
| 42 | . ./common.filter |
| 43 | . ./common.pattern |
| 44 | |
| 45 | # Any format supporting backing files |
| 46 | _supported_fmt qcow qcow2 vmdk qed |
| 47 | _supported_proto file |
| 48 | _supported_os Linux |
| 49 | _unsupported_imgopts "subformat=monolithicFlat" \ |
| 50 | "subformat=twoGbMaxExtentFlat" \ |
| 51 | "subformat=twoGbMaxExtentSparse" \ |
| 52 | "subformat=streamOptimized" |
| 53 | |
| 54 | TEST_OFFSETS="0 4294967296" |
| 55 | CLUSTER_SIZE=65536 |
| 56 | |
| 57 | TEST_IMG_SAVE="$TEST_IMG" |
| 58 | TEST_IMG="$TEST_IMG.base" |
| 59 | |
| 60 | _make_test_img 6G |
| 61 | |
| 62 | echo "Filling base image" |
| 63 | echo |
| 64 | |
| 65 | for offset in $TEST_OFFSETS; do |
| 66 | # Some clusters with alternating backing file/image file reads |
| 67 | io_pattern writev $(( offset )) 512 1024 64 42 |
| 68 | |
| 69 | # Complete backing clusters |
| 70 | io_pattern writev $(( offset + 1024 * 1024)) $CLUSTER_SIZE $CLUSTER_SIZE 1 42 |
| 71 | done |
| 72 | _check_test_img |
| 73 | |
| 74 | echo "Creating test image with backing file" |
| 75 | echo |
| 76 | |
| 77 | TEST_IMG="$TEST_IMG_SAVE.orig" |
| 78 | _make_test_img -b "$TEST_IMG_SAVE.base" -F $IMGFMT 6G |
| 79 | |
| 80 | echo "Filling test image" |
| 81 | echo |
| 82 | |
| 83 | for offset in $TEST_OFFSETS; do |
| 84 | # Some clusters with alternating backing file/image file reads |
| 85 | io_pattern writev $(( offset + 512 )) 512 1024 64 43 |
| 86 | |
| 87 | # Complete test image clusters |
| 88 | io_pattern writev $(( offset + 1024 * 1024 + $CLUSTER_SIZE)) $CLUSTER_SIZE $CLUSTER_SIZE 1 43 |
| 89 | done |
| 90 | _check_test_img |
| 91 | |
| 92 | TEST_IMG="$TEST_IMG_SAVE" |
| 93 | |
| 94 | # Test the conversion twice: One test with the old-style -B option and another |
| 95 | # one with -o backing_file |
| 96 | |
| 97 | for backing_option in "-B " "-o backing_file="; do |
| 98 | |
| 99 | echo |
| 100 | echo Testing conversion with $backing_option"$TEST_IMG.base" | _filter_testdir | _filter_imgfmt |
| 101 | echo |
| 102 | $QEMU_IMG convert -f $IMGFMT -O $IMGFMT $backing_option"$TEST_IMG.base" \ |
| 103 | -o backing_fmt=$IMGFMT "$TEST_IMG.orig" "$TEST_IMG" |
| 104 | |
| 105 | echo "Checking if backing clusters are allocated when they shouldn't" |
| 106 | echo |
| 107 | for offset in $TEST_OFFSETS; do |
| 108 | # Complete backing clusters |
| 109 | is_allocated $(( offset + 1024 * 1024)) $CLUSTER_SIZE $CLUSTER_SIZE 1 |
| 110 | done |
| 111 | |
| 112 | echo "Reading" |
| 113 | echo |
| 114 | |
| 115 | for offset in $TEST_OFFSETS; do |
| 116 | # Some clusters with alternating backing file/image file reads |
| 117 | io_pattern readv $(( offset )) 512 1024 64 42 |
| 118 | io_pattern readv $(( offset + 512 )) 512 1024 64 43 |
| 119 | |
| 120 | # Complete test image clusters |
| 121 | io_pattern readv $(( offset + 1024 * 1024)) $CLUSTER_SIZE $CLUSTER_SIZE 1 42 |
| 122 | io_pattern readv $(( offset + 1024 * 1024 + $CLUSTER_SIZE)) $CLUSTER_SIZE $CLUSTER_SIZE 1 43 |
| 123 | |
| 124 | # Empty sectors |
| 125 | io_zero readv $(( offset + 1024 * 1024 + $CLUSTER_SIZE * 4 )) $CLUSTER_SIZE $CLUSTER_SIZE 1 |
| 126 | done |
| 127 | _check_test_img |
| 128 | |
| 129 | done |
| 130 | |
| 131 | # success, all done |
| 132 | echo "*** done" |
| 133 | rm -f $seq.full |
| 134 | status=0 |