qemu-e2k/tests/qemu-iotests/290
Max Reitz 57284d2ada iotests: Enable fuse for many tests
Many tests (that do not support generic protocols) can run just fine
with FUSE-exported images, so allow them to.  Note that this is no
attempt at being definitely complete.  There are some tests that might
be modified to run on FUSE, but this patch still skips them.  This patch
only tries to pick the rather low-hanging fruits.

Note that 221 and 250 only pass when .lseek is correctly implemented,
which is only possible with a libfuse that is 3.8 or newer.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20201027190600.192171-20-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-12-11 17:52:40 +01:00

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#!/usr/bin/env bash
#
# Test how 'qemu-io -c discard' behaves on v2 and v3 qcow2 images
#
# Copyright (C) 2020 Igalia, S.L.
# Author: Alberto Garcia <berto@igalia.com>
#
# 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=berto@igalia.com
seq=`basename $0`
echo "QA output created by $seq"
status=1 # failure is the default!
_cleanup()
{
_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
_supported_fmt qcow2
_supported_proto file fuse
_supported_os Linux
_unsupported_imgopts 'compat=0.10' refcount_bits data_file
echo
echo "### Test 'qemu-io -c discard' on a QCOW2 image without a backing file"
echo
for qcow2_compat in 0.10 1.1; do
echo "# Create an image with compat=$qcow2_compat without a backing file"
_make_test_img -o "compat=$qcow2_compat" 128k
echo "# Fill all clusters with data and then discard them"
$QEMU_IO -c 'write -P 0x01 0 128k' "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c 'discard 0 128k' "$TEST_IMG" | _filter_qemu_io
echo "# Read the data from the discarded clusters"
$QEMU_IO -c 'read -P 0x00 0 128k' "$TEST_IMG" | _filter_qemu_io
echo "# Output of qemu-img map"
$QEMU_IMG map "$TEST_IMG" | _filter_testdir
done
echo
echo "### Test 'qemu-io -c discard' on a QCOW2 image with a backing file"
echo
echo "# Create a backing image and fill it with data"
BACKING_IMG="$TEST_IMG.base"
TEST_IMG="$BACKING_IMG" _make_test_img 128k
$QEMU_IO -c 'write -P 0xff 0 128k' "$BACKING_IMG" | _filter_qemu_io
for qcow2_compat in 0.10 1.1; do
echo "# Create an image with compat=$qcow2_compat and a backing file"
_make_test_img -o "compat=$qcow2_compat" -b "$BACKING_IMG" -F $IMGFMT
echo "# Fill all clusters with data and then discard them"
$QEMU_IO -c 'write -P 0x01 0 128k' "$TEST_IMG" | _filter_qemu_io
$QEMU_IO -c 'discard 0 128k' "$TEST_IMG" | _filter_qemu_io
echo "# Read the data from the discarded clusters"
if [ "$qcow2_compat" = "1.1" ]; then
# In qcow2 v3 clusters are zeroed (with QCOW_OFLAG_ZERO)
$QEMU_IO -c 'read -P 0x00 0 128k' "$TEST_IMG" | _filter_qemu_io
else
# In qcow2 v2 if there's a backing image we cannot zero the clusters
# without exposing the backing file data so discard does nothing
$QEMU_IO -c 'read -P 0x01 0 128k' "$TEST_IMG" | _filter_qemu_io
fi
echo "# Output of qemu-img map"
$QEMU_IMG map "$TEST_IMG" | _filter_testdir
done
# success, all done
echo "*** done"
rm -f $seq.full
status=0