Simple test: - start writing to allocated cluster A - discard this cluster - write to another unallocated cluster B (it's allocated in same place where A was allocated) - continue writing to A
For now last action pollutes cluster B which is a bug fixed by the following commit. For now, add test to "disabled" group, so that it doesn't run automatically. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> --- .../tests/qcow2-discard-during-rewrite | 72 +++++++++++++++++++ .../tests/qcow2-discard-during-rewrite.out | 21 ++++++ 2 files changed, 93 insertions(+) create mode 100755 tests/qemu-iotests/tests/qcow2-discard-during-rewrite create mode 100644 tests/qemu-iotests/tests/qcow2-discard-during-rewrite.out diff --git a/tests/qemu-iotests/tests/qcow2-discard-during-rewrite b/tests/qemu-iotests/tests/qcow2-discard-during-rewrite new file mode 100755 index 0000000000..7f0d8a107a --- /dev/null +++ b/tests/qemu-iotests/tests/qcow2-discard-during-rewrite @@ -0,0 +1,72 @@ +#!/usr/bin/env bash +# group: quick disabled +# +# Test discarding (and reusing) host cluster during writing data to it. +# +# Copyright (c) 2021 Virtuozzo International GmbH. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +# creator +owner=vsement...@virtuozzo.com + +seq=`basename $0` +echo "QA output created by $seq" + +status=1 # failure is the default! + +_cleanup() +{ + _cleanup_test_img +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +. ./../common.rc +. ./../common.filter + +_supported_fmt qcow2 +_supported_proto file fuse +_supported_os Linux + +size=1M +_make_test_img $size + +( +cat <<EOF +write -P 1 0 64K + +break pwritev A +aio_write -P 2 0 64K +wait_break A + +discard 0 64K +write -P 3 128K 64K +read -P 3 128K 64K + +break pwritev_done B +resume A +wait_break B +resume B + +read -P 0 0 64K +read -P 3 128K 64K +EOF +) | $QEMU_IO blkdebug::$TEST_IMG | _filter_qemu_io + +# success, all done +echo "*** done" +rm -f $seq.full +status=0 diff --git a/tests/qemu-iotests/tests/qcow2-discard-during-rewrite.out b/tests/qemu-iotests/tests/qcow2-discard-during-rewrite.out new file mode 100644 index 0000000000..8e75b2fbff --- /dev/null +++ b/tests/qemu-iotests/tests/qcow2-discard-during-rewrite.out @@ -0,0 +1,21 @@ +QA output created by qcow2-discard-during-rewrite +Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +blkdebug: Suspended request 'A' +discard 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 65536/65536 bytes at offset 131072 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 65536/65536 bytes at offset 131072 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +blkdebug: Resuming request 'A' +blkdebug: Suspended request 'B' +blkdebug: Resuming request 'B' +wrote 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 65536/65536 bytes at offset 0 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +read 65536/65536 bytes at offset 131072 +64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +*** done -- 2.29.2
