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iotests: Test resizing image attached to an iothread
This tests that trying to resize an image with QMP block_resize doesn't hang or otherwise fail when the image is attached to a device running in an iothread. This is a regression test for the recent fix that changed qmp_block_resize, which is a coroutine based QMP handler, to avoid calling no_coroutine_fns directly. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20230509134133.373408-1-kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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tests/qemu-iotests/tests/iothreads-resize
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tests/qemu-iotests/tests/iothreads-resize
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#!/usr/bin/env bash
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# group: rw auto quick
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#
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# Test resizing an image that is attached to a separate iothread
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#
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# Copyright (C) 2023 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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# creator
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owner=kwolf@redhat.com
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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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}
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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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cd ..
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. ./common.rc
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. ./common.filter
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# Resizing images is only supported by a few block drivers
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_supported_fmt raw qcow2 qed
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_supported_proto file
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_require_devices virtio-scsi-pci
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size=64M
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_make_test_img $size
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qmp() {
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cat <<EOF
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{"execute":"qmp_capabilities"}
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{'execute': 'block_resize',
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'arguments': {'node-name': 'img', 'size': 134217728}}
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{"execute":"quit"}
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EOF
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}
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qmp | $QEMU -S -display none \
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-drive if=none,format=$IMGFMT,file="$TEST_IMG",node-name=img \
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-object iothread,id=t0 \
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-device virtio-scsi-pci,iothread=t0 \
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-device scsi-hd,drive=none0 \
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-qmp stdio \
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| _filter_qmp
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_img_info | _filter_img_info
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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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tests/qemu-iotests/tests/iothreads-resize.out
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tests/qemu-iotests/tests/iothreads-resize.out
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QA output created by iothreads-resize
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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QMP_VERSION
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{"return": {}}
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{"return": {}}
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{"return": {}}
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{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
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image: TEST_DIR/t.IMGFMT
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file format: IMGFMT
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virtual size: 128 MiB (134217728 bytes)
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*** done
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