iotests: Add test 291 to for qemu-img bitmap coverage
Add a new test covering the 'qemu-img bitmap' subcommand, as well as 'qemu-img convert --bitmaps', both added in recent patches. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200521192137.1120211-6-eblake@redhat.com>
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Eric Blake
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15e39ad950
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cf2d1203dc
112
tests/qemu-iotests/291
Executable file
112
tests/qemu-iotests/291
Executable file
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#!/usr/bin/env bash
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#
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# Test qemu-img bitmap handling
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#
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# Copyright (C) 2018-2020 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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seq="$(basename $0)"
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echo "QA output created by $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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nbd_server_stop
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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. ./common.nbd
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_supported_fmt qcow2
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_supported_proto file
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_supported_os Linux
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_require_command QEMU_NBD
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echo
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echo "=== Initial image setup ==="
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echo
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# Create backing image with one bitmap
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TEST_IMG="$TEST_IMG.base" _make_test_img 10M
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$QEMU_IMG bitmap --add -f $IMGFMT "$TEST_IMG.base" b0
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$QEMU_IO -c 'w 3M 1M' -f $IMGFMT "$TEST_IMG.base" | _filter_qemu_io
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# Create initial image and populate two bitmaps: one active, one inactive.
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ORIG_IMG=$TEST_IMG
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TEST_IMG=$TEST_IMG.orig
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_make_test_img -b "$ORIG_IMG.base" -F $IMGFMT 10M
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$QEMU_IO -c 'w 0 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io
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$QEMU_IMG bitmap --add -g 512k -f $IMGFMT "$TEST_IMG" b1
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$QEMU_IMG bitmap --add --disable -f $IMGFMT "$TEST_IMG" b2
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$QEMU_IO -c 'w 3M 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io
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$QEMU_IMG bitmap --clear -f $IMGFMT "$TEST_IMG" b1
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$QEMU_IO -c 'w 1M 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io
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$QEMU_IMG bitmap --disable -f $IMGFMT "$TEST_IMG" b1
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$QEMU_IMG bitmap --enable -f $IMGFMT "$TEST_IMG" b2
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$QEMU_IO -c 'w 2M 1M' -f $IMGFMT "$TEST_IMG" | _filter_qemu_io
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echo
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echo "=== Bitmap preservation not possible to non-qcow2 ==="
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echo
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TEST_IMG=$ORIG_IMG
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$QEMU_IMG convert --bitmaps -O raw "$TEST_IMG.orig" "$TEST_IMG" &&
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echo "unexpected success"
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echo
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echo "=== Convert with bitmap preservation ==="
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echo
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# Only bitmaps from the active layer are copied
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$QEMU_IMG convert --bitmaps -O qcow2 "$TEST_IMG.orig" "$TEST_IMG"
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$QEMU_IMG info "$TEST_IMG" | _filter_img_info --format-specific
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# But we can also merge in bitmaps from other layers. This test is a bit
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# contrived to cover more code paths, in reality, you could merge directly
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# into b0 without going through tmp
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$QEMU_IMG bitmap --add --disable -f $IMGFMT "$TEST_IMG" b0
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$QEMU_IMG bitmap --add --merge b0 -b "$TEST_IMG.base" -F $IMGFMT \
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-f $IMGFMT "$TEST_IMG" tmp
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$QEMU_IMG bitmap --merge tmp -f $IMGFMT "$TEST_IMG" b0
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$QEMU_IMG bitmap --remove --image-opts \
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driver=$IMGFMT,file.driver=file,file.filename="$TEST_IMG" tmp
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$QEMU_IMG info "$TEST_IMG" | _filter_img_info --format-specific
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echo
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echo "=== Check bitmap contents ==="
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echo
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# x-dirty-bitmap is a hack for reading bitmaps; it abuses block status to
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# report "data":false for portions of the bitmap which are set
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IMG="driver=nbd,server.type=unix,server.path=$nbd_unix_socket"
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nbd_server_start_unix_socket -r -f qcow2 -B b0 "$TEST_IMG"
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$QEMU_IMG map --output=json --image-opts \
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"$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b0" | _filter_qemu_img_map
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nbd_server_start_unix_socket -r -f qcow2 -B b1 "$TEST_IMG"
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$QEMU_IMG map --output=json --image-opts \
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"$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b1" | _filter_qemu_img_map
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nbd_server_start_unix_socket -r -f qcow2 -B b2 "$TEST_IMG"
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$QEMU_IMG map --output=json --image-opts \
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"$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map
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# success, all done
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echo '*** done'
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rm -f $seq.full
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status=0
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80
tests/qemu-iotests/291.out
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80
tests/qemu-iotests/291.out
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@ -0,0 +1,80 @@
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QA output created by 291
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=== Initial image setup ===
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Formatting 'TEST_DIR/t.IMGFMT.base', fmt=IMGFMT size=10485760
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wrote 1048576/1048576 bytes at offset 3145728
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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Formatting 'TEST_DIR/t.IMGFMT.orig', fmt=IMGFMT size=10485760 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT
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wrote 1048576/1048576 bytes at offset 0
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 1048576/1048576 bytes at offset 3145728
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 1048576/1048576 bytes at offset 1048576
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 1048576/1048576 bytes at offset 2097152
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1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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=== Bitmap preservation not possible to non-qcow2 ===
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qemu-img: Format driver 'raw' does not support bitmaps
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=== Convert with bitmap preservation ===
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image: TEST_DIR/t.IMGFMT
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file format: IMGFMT
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virtual size: 10 MiB (10485760 bytes)
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disk size: 4.39 MiB
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Format specific information:
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compat: 1.1
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compression type: zlib
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lazy refcounts: false
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bitmaps:
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[0]:
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flags:
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name: b1
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granularity: 524288
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[1]:
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flags:
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[0]: auto
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name: b2
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granularity: 65536
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refcount bits: 16
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corrupt: false
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image: TEST_DIR/t.IMGFMT
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file format: IMGFMT
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virtual size: 10 MiB (10485760 bytes)
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disk size: 4.48 MiB
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Format specific information:
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compat: 1.1
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compression type: zlib
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lazy refcounts: false
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bitmaps:
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[0]:
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flags:
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name: b1
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granularity: 524288
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[1]:
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flags:
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[0]: auto
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name: b2
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granularity: 65536
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[2]:
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flags:
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name: b0
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granularity: 65536
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refcount bits: 16
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corrupt: false
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=== Check bitmap contents ===
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[{ "start": 0, "length": 3145728, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
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{ "start": 3145728, "length": 1048576, "depth": 0, "zero": false, "data": false},
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{ "start": 4194304, "length": 6291456, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
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[{ "start": 0, "length": 1048576, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
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{ "start": 1048576, "length": 1048576, "depth": 0, "zero": false, "data": false},
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{ "start": 2097152, "length": 8388608, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
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[{ "start": 0, "length": 2097152, "depth": 0, "zero": false, "data": true, "offset": OFFSET},
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{ "start": 2097152, "length": 1048576, "depth": 0, "zero": false, "data": false},
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{ "start": 3145728, "length": 7340032, "depth": 0, "zero": false, "data": true, "offset": OFFSET}]
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*** done
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@ -299,5 +299,6 @@
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288 quick
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289 rw quick
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290 rw auto quick
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291 rw quick
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292 rw auto quick
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297 meta
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