8cedcffdc1
Bash allows functions to be declared with or without the leading keyword 'function'; but including the keyword does not comply with POSIX syntax, and is confusing to ksh users where the use of the keyword changes the scoping rules for functions. Stick to the POSIX form through iotests. Done mechanically with: sed -i 's/^function //' $(git ls-files tests/qemu-iotests) Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20181116215002.2124581-1-eblake@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
136 lines
3.1 KiB
Bash
Executable File
136 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
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#
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# Test COW from backing files with AIO
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#
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# Copyright (C) 2012 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 $seq"
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status=1 # failure is the default!
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_cleanup()
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{
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_cleanup_test_img
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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_supported_fmt qcow2 qed
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_supported_proto file
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_supported_os Linux
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CLUSTER_SIZE=2M
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size=128M
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echo
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echo "== creating backing file for COW tests =="
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TEST_IMG_SAVE="$TEST_IMG"
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TEST_IMG="$TEST_IMG.base"
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_make_test_img $size
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backing_io()
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{
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local offset=$1
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local sectors=$2
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local op=$3
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local pattern=0
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local cur_sec=0
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for i in $(seq 0 $((sectors - 1))); do
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cur_sec=$((offset / 65536 + i))
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pattern=$(( ( (cur_sec % 128) + (cur_sec / 128)) % 128 ))
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echo "$op -P $pattern $((cur_sec * 64))k 64k"
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done
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}
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backing_io 0 256 write | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
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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
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echo "== Some concurrent requests touching the same cluster =="
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overlay_io()
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{
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# Start with a request touching two clusters
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echo aio_write -P 0x80 2020k 80k
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# Then add some requests all over the place
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for i in $(seq 0 15; seq 17 31; seq 33 47); do
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echo aio_write -P $((0x81 + i)) $((i * 128))k 64k
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done
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# Then backwards overwriting part of them
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for i in $( (seq 0 15; seq 17 31; seq 33 47) | tac); do
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echo aio_write -P $((0x81 + i)) $((i * 128 + 32))k 64k
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done
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# And finally crossing the next cluster boundary
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echo aio_write -P 0x90 4080k 80k
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}
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overlay_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io |\
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sed -e 's/bytes at offset [0-9]*/bytes at offset XXX/g' \
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-e 's/qemu-io> //g' | paste - - | sort | tr '\t' '\n'
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echo
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echo "== Verify image content =="
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verify_io()
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{
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echo read -P 31 2016k 4k
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echo read -P 0x80 2020k 80k
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echo read -P 32 2100k 12k
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echo read -P 33 2112k 64k
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echo read -P 63 4064k 16k
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echo read -P 0x90 4080k 80k
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echo read -P 65 4160k 64k
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for i in $(seq 0 15; seq 17 31; seq 33 47); do
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echo read -P $((0x81 + i)) $((i * 128))k 96k
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done
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for i in $(seq 0 14; seq 16 30; seq 32 47); do
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local cur_sec=$(( i * 2 + 1 ))
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local pattern=$(( ( (cur_sec % 128) + (cur_sec / 128)) % 128 ))
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echo read -P $pattern $((i * 128 + 96))k 32k
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done
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}
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verify_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
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_check_test_img
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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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