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9dd003a998
We are going to drop group file. Define group in tests as a preparatory
step.
The patch is generated by
cd tests/qemu-iotests
grep '^[0-9]\{3\} ' group | while read line; do
file=$(awk '{print $1}' <<< "$line");
groups=$(sed -e 's/^... //' <<< "$line");
awk "NR==2{print \"# group: $groups\"}1" $file > tmp;
cat tmp > $file;
done
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210116134424.82867-7-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
136 lines
4.5 KiB
Bash
Executable File
136 lines
4.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# group: rw quick
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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 fuse
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_supported_os Linux
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_require_command QEMU_NBD
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# compat=0.10 does not support bitmaps
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_unsupported_imgopts 'compat=0.10'
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# Filter irrelevant format-specific information from the qemu-img info
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# output (we only want the bitmaps, basically)
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_filter_irrelevant_img_info()
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{
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grep -v -e 'compat' -e 'compression type' -e 'data file' -e 'extended l2' \
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-e 'lazy refcounts' -e 'refcount bits'
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}
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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" "$TEST_IMG"
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_img_info --format-specific | _filter_irrelevant_img_info
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# But we can also merge in bitmaps from other layers. This test is a bit
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# contrived to cover more code paths, in reality, you could merge directly
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# into b0 without going through tmp
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$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="$TEST_IMG" tmp
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_img_info --format-specific | _filter_irrelevant_img_info
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echo
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echo "=== Merge from top layer into backing image ==="
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echo
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$QEMU_IMG rebase -u -F qcow2 -b "$TEST_IMG.base" "$TEST_IMG"
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$QEMU_IMG bitmap --add --merge b2 -b "$TEST_IMG" -F $IMGFMT \
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-f $IMGFMT "$TEST_IMG.base" b3
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_img_info --format-specific --backing-chain | _filter_irrelevant_img_info
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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=$nbd_unix_socket"
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nbd_server_start_unix_socket -r -f qcow2 \
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-B b0 -B b1 -B b2 -B b3 "$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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$QEMU_IMG map --output=json --image-opts \
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"$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b1" | _filter_qemu_img_map
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$QEMU_IMG map --output=json --image-opts \
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"$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b2" | _filter_qemu_img_map
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$QEMU_IMG map --output=json --image-opts \
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"$IMG,x-dirty-bitmap=qemu:dirty-bitmap:b3" | _filter_qemu_img_map
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nbd_server_stop
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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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