325dd915b2
streamOptimized does not support writes that do not span exactly one cluster. Furthermore, it cannot rewrite already allocated clusters. As such, many iotests do not work with it. Disable them. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20190815153638.4600-6-mreitz@redhat.com Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
141 lines
3.7 KiB
Bash
Executable File
141 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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#
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# Commit changes to backing file
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#
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# Copyright (C) 2009 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 $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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rm -f "$TEST_IMG.base"
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rm -f "$TEST_IMG.orig"
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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. ./common.pattern
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# Any format supporting backing files
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_supported_fmt qcow qcow2 vmdk qed
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_supported_proto file
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_unsupported_imgopts "subformat=monolithicFlat" \
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"subformat=twoGbMaxExtentFlat" \
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"subformat=twoGbMaxExtentSparse" \
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"subformat=streamOptimized"
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TEST_OFFSETS="0 4294967296"
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TEST_IMG_SAVE="$TEST_IMG"
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TEST_IMG="$TEST_IMG.base"
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_make_test_img 6G
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echo "Filling base image"
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echo
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for offset in $TEST_OFFSETS; do
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# Some clusters with alternating backing file/image file reads
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io writev $(( offset )) 512 1024 64
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# Complete backing clusters
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io writev $(( offset + 64 * 1024)) 65536 65536 1
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done
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_check_test_img
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echo "Creating test image with backing file"
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echo
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TEST_IMG="$TEST_IMG_SAVE"
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_make_test_img -b "$TEST_IMG.base" 6G
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echo "Filling test image"
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echo
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for offset in $TEST_OFFSETS; do
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# Some clusters with alternating backing file/image file reads
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io writev $(( offset + 512 )) 512 1024 64
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# Complete test image clusters
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io writev $(( offset + 64 * 1024 + 65536)) 65536 65536 1
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done
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_check_test_img
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$QEMU_IMG commit "$TEST_IMG"
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TEST_IMG="$TEST_IMG.base"
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echo "Reading from the backing file"
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echo
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for offset in $TEST_OFFSETS; do
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# Some clusters with alternating backing file/image file reads
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io readv $(( offset )) 512 1024 64
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io readv $(( offset + 512 )) 512 1024 64
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# Complete test image clusters
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io readv $(( offset + 64 * 1024)) 65536 65536 1
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io readv $(( offset + 64 * 1024 + 65536)) 65536 65536 1
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# Empty sectors
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io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1
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done
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_check_test_img
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_cleanup
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TEST_IMG=$TEST_IMG_SAVE
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echo
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echo 'Testing failing commit'
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echo
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TEST_IMG="$TEST_IMG.base" _make_test_img 1M
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# Create an image with a null backing file to which committing will fail (with
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# ENOSPC so we can distinguish the result from some generic EIO which may be
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# generated anywhere in the block layer)
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_make_test_img -b "json:{'driver': '$IMGFMT',
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'file': {
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'driver': 'blkdebug',
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'inject-error': [{
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'event': 'write_aio',
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'errno': 28,
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'once': true
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}],
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'image': {
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'driver': 'file',
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'filename': '$TEST_IMG.base'
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}}}"
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# Just write anything so committing will not be a no-op
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$QEMU_IO -c 'writev 0 64k' "$TEST_IMG" | _filter_qemu_io
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$QEMU_IMG commit "$TEST_IMG"
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_cleanup
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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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