tests/qemu-iotests/154

   1 #!/bin/bash
   2 #
   3 # qcow2 specific bdrv_pwrite_zeroes tests with backing files (complements 034)
   4 #
   5 # Copyright (C) 2016 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 $seq"
  26
  27 here=`pwd`
  28 status=1        # failure is the default!
  29
  30 _cleanup()
  31 {
  32         _cleanup_test_img
  33 }
  34 trap "_cleanup; exit \$status" 0 1 2 3 15
  35
  36 # get standard environment, filters and checks
  37 . ./common.rc
  38 . ./common.filter
  39
  40 _supported_fmt qcow2
  41 _supported_proto file
  42 _supported_os Linux
  43
  44 CLUSTER_SIZE=4k
  45 size=128M
  46
  47 echo
  48 echo == backing file contains zeros ==
  49
  50 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
  51 _make_test_img -b "$TEST_IMG.base"
  52
  53 # Make sure that the whole cluster is allocated even for partial write_zeroes
  54 # when the backing file contains zeros
  55
  56 # X = non-zero data sector in backing file
  57 # - = sector unallocated in whole backing chain
  58 # 0 = sector touched by write_zeroes request
  59
  60 # 1. Tail unaligned:    00 00 -- --
  61 # 2. Head unaligned:    -- -- 00 00
  62 # 3. Both unaligned:    -- 00 00 --
  63 # 4. Both, 2 clusters:  -- -- -- 00 | 00 -- -- --
  64
  65 $QEMU_IO -c "write -z 0 2k" "$TEST_IMG" | _filter_qemu_io
  66 $QEMU_IO -c "write -z 10k 2k" "$TEST_IMG" | _filter_qemu_io
  67 $QEMU_IO -c "write -z 17k 2k" "$TEST_IMG" | _filter_qemu_io
  68 $QEMU_IO -c "write -z 27k 2k" "$TEST_IMG" | _filter_qemu_io
  69 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
  70
  71 echo
  72 echo == backing file contains non-zero data before write_zeroes ==
  73
  74 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
  75 _make_test_img -b "$TEST_IMG.base"
  76
  77 # Single cluster; non-zero data at the cluster start
  78 # ... | XX -- 00 -- | ...
  79 $QEMU_IO -c "write -P 0x11 32k 1k" "$TEST_IMG.base" | _filter_qemu_io
  80 $QEMU_IO -c "write -z 34k 1k" "$TEST_IMG" | _filter_qemu_io
  81 $QEMU_IO -c "read -P 0x11 32k 1k" "$TEST_IMG" | _filter_qemu_io
  82 $QEMU_IO -c "read -P 0 33k 3k" "$TEST_IMG" | _filter_qemu_io
  83
  84 # Single cluster; non-zero data exists, but not at the cluster start
  85 # ... | -- XX 00 -- | ...
  86 $QEMU_IO -c "write -P 0x11 65k 1k" "$TEST_IMG.base" | _filter_qemu_io
  87 $QEMU_IO -c "write -z 66k 1k" "$TEST_IMG" | _filter_qemu_io
  88 $QEMU_IO -c "read -P 0x11 65k 1k" "$TEST_IMG" | _filter_qemu_io
  89 $QEMU_IO -c "read -P 0 64k 1k" "$TEST_IMG" | _filter_qemu_io
  90 $QEMU_IO -c "read -P 0 66k 2k" "$TEST_IMG" | _filter_qemu_io
  91
  92 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
  93
  94 echo
  95 echo == backing file contains non-zero data after write_zeroes ==
  96
  97 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
  98 _make_test_img -b "$TEST_IMG.base"
  99
 100 # Single cluster; non-zero data directly after request
 101 # ... | -- 00 XX -- | ...
 102 $QEMU_IO -c "write -P 0x11 34k 1k" "$TEST_IMG.base" | _filter_qemu_io
 103 $QEMU_IO -c "write -z 33k 1k" "$TEST_IMG" | _filter_qemu_io
 104 $QEMU_IO -c "read -P 0 32k 2k" "$TEST_IMG" | _filter_qemu_io
 105 $QEMU_IO -c "read -P 0x11 34k 1k" "$TEST_IMG" | _filter_qemu_io
 106 $QEMU_IO -c "read -P 0 35k 1k" "$TEST_IMG" | _filter_qemu_io
 107
 108 # Single cluster; non-zero data exists, but not directly after request
 109 # ... | -- 00 -- XX | ...
 110 $QEMU_IO -c "write -P 0x11 43k 1k" "$TEST_IMG.base" | _filter_qemu_io
 111 $QEMU_IO -c "write -z 41k 1k" "$TEST_IMG" | _filter_qemu_io
 112 $QEMU_IO -c "read -P 0x11 43k 1k" "$TEST_IMG" | _filter_qemu_io
 113 $QEMU_IO -c "read -P 0 40k 3k" "$TEST_IMG" | _filter_qemu_io
 114
 115 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
 116
 117 echo
 118 echo == write_zeroes covers non-zero data ==
 119
 120 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 121 _make_test_img -b "$TEST_IMG.base"
 122
 123 # non-zero data at front of request
 124 # Backing file: -- XX -- --
 125 # Active layer: -- 00 00 --
 126
 127 $QEMU_IO -c "write -P 0x11 5k 1k" "$TEST_IMG.base" | _filter_qemu_io
 128 $QEMU_IO -c "write -z 5k 2k" "$TEST_IMG" | _filter_qemu_io
 129 $QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
 130
 131 # non-zero data at end of request
 132 # Backing file: -- -- XX --
 133 # Active layer: -- 00 00 --
 134
 135 $QEMU_IO -c "write -P 0x11 14k 1k" "$TEST_IMG.base" | _filter_qemu_io
 136 $QEMU_IO -c "write -z 13k 2k" "$TEST_IMG" | _filter_qemu_io
 137 $QEMU_IO -c "read -P 0 12k 4k" "$TEST_IMG" | _filter_qemu_io
 138
 139 # non-zero data matches size of request
 140 # Backing file: -- XX XX --
 141 # Active layer: -- 00 00 --
 142
 143 $QEMU_IO -c "write -P 0x11 21k 2k" "$TEST_IMG.base" | _filter_qemu_io
 144 $QEMU_IO -c "write -z 21k 2k" "$TEST_IMG" | _filter_qemu_io
 145 $QEMU_IO -c "read -P 0 20k 4k" "$TEST_IMG" | _filter_qemu_io
 146
 147 # non-zero data smaller than request
 148 # Backing file: -- -X X- --
 149 # Active layer: -- 00 00 --
 150
 151 $QEMU_IO -c "write -P 0x11 30208 1k" "$TEST_IMG.base" | _filter_qemu_io
 152 $QEMU_IO -c "write -z 29k 2k" "$TEST_IMG" | _filter_qemu_io
 153 $QEMU_IO -c "read -P 0 28k 4k" "$TEST_IMG" | _filter_qemu_io
 154
 155 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
 156
 157 echo
 158 echo == spanning two clusters, non-zero before request ==
 159
 160 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 161 _make_test_img -b "$TEST_IMG.base"
 162
 163 # Two clusters; non-zero data before request:
 164 # 1. At cluster start:          32k: XX -- -- 00 | 00 -- -- --
 165 # 2. Between unallocated space: 48k: -- XX -- 00 | 00 -- -- --
 166 # 3. Directly before request:   64k: -- -- XX 00 | 00 -- -- --
 167
 168 $QEMU_IO -c "write -P 0x11 32k 1k" "$TEST_IMG.base" | _filter_qemu_io
 169 $QEMU_IO -c "write -z 35k 2k" "$TEST_IMG" | _filter_qemu_io
 170 $QEMU_IO -c "read -P 0x11 32k 1k" "$TEST_IMG" | _filter_qemu_io
 171 $QEMU_IO -c "read -P 0 33k 7k" "$TEST_IMG" | _filter_qemu_io
 172
 173 $QEMU_IO -c "write -P 0x11 49k 1k" "$TEST_IMG.base" | _filter_qemu_io
 174 $QEMU_IO -c "write -z 51k 2k" "$TEST_IMG" | _filter_qemu_io
 175 $QEMU_IO -c "read -P 0 48k 1k" "$TEST_IMG" | _filter_qemu_io
 176 $QEMU_IO -c "read -P 0x11 49k 1k" "$TEST_IMG" | _filter_qemu_io
 177 $QEMU_IO -c "read -P 0 50k 6k" "$TEST_IMG" | _filter_qemu_io
 178
 179 $QEMU_IO -c "write -P 0x11 66k 1k" "$TEST_IMG.base" | _filter_qemu_io
 180 $QEMU_IO -c "write -z 67k 2k" "$TEST_IMG" | _filter_qemu_io
 181 $QEMU_IO -c "read -P 0 64k 2k" "$TEST_IMG" | _filter_qemu_io
 182 $QEMU_IO -c "read -P 0x11 66k 1k" "$TEST_IMG" | _filter_qemu_io
 183 $QEMU_IO -c "read -P 0 67k 5k" "$TEST_IMG" | _filter_qemu_io
 184
 185 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
 186
 187 echo
 188 echo == spanning two clusters, non-zero after request ==
 189
 190 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 191 _make_test_img -b "$TEST_IMG.base"
 192
 193 # Two clusters; non-zero data after request:
 194 # 1. Directly after request:    32k: -- -- -- 00 | 00 XX -- --
 195 # 2. Between unallocated space: 48k: -- -- -- 00 | 00 -- XX --
 196 # 3. At cluster end:            64k: -- -- -- 00 | 00 -- -- XX
 197
 198 $QEMU_IO -c "write -P 0x11 37k 1k" "$TEST_IMG.base" | _filter_qemu_io
 199 $QEMU_IO -c "write -z 35k 2k" "$TEST_IMG" | _filter_qemu_io
 200 $QEMU_IO -c "read -P 0 32k 5k" "$TEST_IMG" | _filter_qemu_io
 201 $QEMU_IO -c "read -P 0x11 37k 1k" "$TEST_IMG" | _filter_qemu_io
 202 $QEMU_IO -c "read -P 0 38k 2k" "$TEST_IMG" | _filter_qemu_io
 203
 204 $QEMU_IO -c "write -P 0x11 54k 1k" "$TEST_IMG.base" | _filter_qemu_io
 205 $QEMU_IO -c "write -z 51k 2k" "$TEST_IMG" | _filter_qemu_io
 206 $QEMU_IO -c "read -P 0 48k 6k" "$TEST_IMG" | _filter_qemu_io
 207 $QEMU_IO -c "read -P 0x11 54k 1k" "$TEST_IMG" | _filter_qemu_io
 208 $QEMU_IO -c "read -P 0 55k 1k" "$TEST_IMG" | _filter_qemu_io
 209
 210 $QEMU_IO -c "write -P 0x11 71k 1k" "$TEST_IMG.base" | _filter_qemu_io
 211 $QEMU_IO -c "write -z 67k 2k" "$TEST_IMG" | _filter_qemu_io
 212 $QEMU_IO -c "read -P 0 64k 7k" "$TEST_IMG" | _filter_qemu_io
 213 $QEMU_IO -c "read -P 0x11 71k 1k" "$TEST_IMG" | _filter_qemu_io
 214
 215 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
 216
 217 echo
 218 echo == spanning two clusters, partially overwriting backing file ==
 219
 220 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 221 _make_test_img -b "$TEST_IMG.base"
 222
 223 # Backing file: -- -- XX XX | XX XX -- --
 224 # Active layer: -- -- XX 00 | 00 XX -- --
 225
 226 $QEMU_IO -c "write -P 0x11 2k 4k" "$TEST_IMG.base" | _filter_qemu_io
 227 $QEMU_IO -c "write -z 3k 2k" "$TEST_IMG" | _filter_qemu_io
 228 $QEMU_IO -c "read -P 0 0k 2k" "$TEST_IMG" | _filter_qemu_io
 229 $QEMU_IO -c "read -P 0x11 2k 1k" "$TEST_IMG" | _filter_qemu_io
 230 $QEMU_IO -c "read -P 0 3k 2k" "$TEST_IMG" | _filter_qemu_io
 231 $QEMU_IO -c "read -P 0x11 5k 1k" "$TEST_IMG" | _filter_qemu_io
 232 $QEMU_IO -c "read -P 0 6k 2k" "$TEST_IMG" | _filter_qemu_io
 233
 234 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
 235
 236 echo
 237 echo == spanning multiple clusters, non-zero in first cluster ==
 238
 239 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 240 _make_test_img -b "$TEST_IMG.base"
 241
 242 # Backing file: 64k: XX XX -- -- | -- -- -- -- | -- -- -- --
 243 # Active layer: 64k: XX XX 00 00 | 00 00 00 00 | 00 -- -- --
 244
 245 $QEMU_IO -c "write -P 0x11 64k 2k" "$TEST_IMG.base" | _filter_qemu_io
 246 $QEMU_IO -c "write -z 66k 7k" "$TEST_IMG" | _filter_qemu_io
 247 $QEMU_IO -c "read -P 0x11 64k 2k" "$TEST_IMG" | _filter_qemu_io
 248 $QEMU_IO -c "read -P 0 66k 10k" "$TEST_IMG" | _filter_qemu_io
 249
 250 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
 251
 252 echo
 253 echo == spanning multiple clusters, non-zero in intermediate cluster ==
 254
 255 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 256 _make_test_img -b "$TEST_IMG.base"
 257
 258 # Backing file: 64k: -- -- -- -- | -- XX XX -- | -- -- -- --
 259 # Active layer: 64k: -- -- 00 00 | 00 00 00 00 | 00 -- -- --
 260
 261 $QEMU_IO -c "write -P 0x11 69k 2k" "$TEST_IMG.base" | _filter_qemu_io
 262 $QEMU_IO -c "write -z 66k 7k" "$TEST_IMG" | _filter_qemu_io
 263 $QEMU_IO -c "read -P 0 64k 12k" "$TEST_IMG" | _filter_qemu_io
 264
 265 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
 266
 267 echo
 268 echo == spanning multiple clusters, non-zero in final cluster ==
 269
 270 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 271 _make_test_img -b "$TEST_IMG.base"
 272
 273 # Backing file: 64k: -- -- -- -- | -- -- -- -- | -- -- XX XX
 274 # Active layer: 64k: -- -- 00 00 | 00 00 00 00 | 00 -- XX XX
 275
 276 $QEMU_IO -c "write -P 0x11 74k 2k" "$TEST_IMG.base" | _filter_qemu_io
 277 $QEMU_IO -c "write -z 66k 7k" "$TEST_IMG" | _filter_qemu_io
 278 $QEMU_IO -c "read -P 0 64k 10k" "$TEST_IMG" | _filter_qemu_io
 279 $QEMU_IO -c "read -P 0x11 74k 2k" "$TEST_IMG" | _filter_qemu_io
 280
 281 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
 282
 283 echo
 284 echo == spanning multiple clusters, partially overwriting backing file ==
 285
 286 CLUSTER_SIZE=512 TEST_IMG="$TEST_IMG.base" _make_test_img $size
 287 _make_test_img -b "$TEST_IMG.base"
 288
 289 # Backing file: 64k: -- XX XX XX | XX XX XX XX | XX XX XX --
 290 # Active layer: 64k: -- XX 00 00 | 00 00 00 00 | 00 XX XX --
 291
 292 $QEMU_IO -c "write -P 0x11 65k 10k" "$TEST_IMG.base" | _filter_qemu_io
 293 $QEMU_IO -c "write -z 66k 7k" "$TEST_IMG" | _filter_qemu_io
 294 $QEMU_IO -c "read -P 0 64k 1k" "$TEST_IMG" | _filter_qemu_io
 295 $QEMU_IO -c "read -P 0x11 65k 1k" "$TEST_IMG" | _filter_qemu_io
 296 $QEMU_IO -c "read -P 0 66k 7k" "$TEST_IMG" | _filter_qemu_io
 297 $QEMU_IO -c "read -P 0x11 73k 2k" "$TEST_IMG" | _filter_qemu_io
 298 $QEMU_IO -c "read -P 0 75k 1k" "$TEST_IMG" | _filter_qemu_io
 299
 300 $QEMU_IMG map --output=json "$TEST_IMG" | _filter_qemu_img_map
 301
 302 # success, all done
 303 echo "*** done"
 304 rm -f $seq.full
 305 status=0