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bf22957309
Running
git grep '\$here' tests/qemu-iotests
has 0 hits, which means we are setting a variable that has
no use. It appears that commit e8f8624d removed the last
use. So execute the following cmd to remove all of
the 'here=...' lines as dead code.
sed -i '/^here=/d' $(git grep -l '^here=' tests/qemu-iotests)
Cc: kwolf@redhat.com
Cc: mreitz@redhat.com
Cc: eblake@redhat.com
Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com>
Message-Id: <20181024094051.4470-3-maozhongyi@cmss.chinamobile.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: touch up commit message, reorder series, rebase to master]
Signed-off-by: Eric Blake <eblake@redhat.com>
141 lines
3.7 KiB
Bash
Executable File
141 lines
3.7 KiB
Bash
Executable File
#!/bin/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 "$TEST_IMG.orig"
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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. ./common.pattern
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# Any format supporting backing files
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_supported_fmt qcow qcow2 vmdk qed
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_supported_proto file
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_supported_os Linux
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_unsupported_imgopts "subformat=monolithicFlat" \
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"subformat=twoGbMaxExtentFlat" \
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"subformat=twoGbMaxExtentSparse"
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TEST_OFFSETS="0 4294967296"
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TEST_IMG_SAVE="$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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