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>
271 lines
6.1 KiB
Bash
Executable File
271 lines
6.1 KiB
Bash
Executable File
#!/bin/bash
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#
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# Test concurrent cluster allocations
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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
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_supported_proto file
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_supported_os Linux
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CLUSTER_SIZE=64k
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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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_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 32 write | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
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mv "$TEST_IMG" "$TEST_IMG.base"
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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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# Allocate middle of cluster 1, then write to somewhere before and after it
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cat <<EOF
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break write_aio A
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aio_write -P 10 0x18000 0x2000
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wait_break A
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aio_write -P 11 0x12000 0x2000
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aio_write -P 12 0x1c000 0x2000
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resume A
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aio_flush
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EOF
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# Sequential write case: Alloc middle of cluster 2, then write overlapping
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# to next cluster
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cat <<EOF
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break write_aio A
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aio_write -P 20 0x28000 0x2000
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wait_break A
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aio_write -P 21 0x2a000 0x10000
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resume A
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aio_flush
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EOF
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# The same with a gap between both requests
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cat <<EOF
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break write_aio A
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aio_write -P 40 0x48000 0x2000
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wait_break A
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aio_write -P 41 0x4c000 0x10000
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resume A
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aio_flush
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EOF
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# Sequential write, but the next cluster is already allocated
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cat <<EOF
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write -P 70 0x76000 0x8000
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aio_flush
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break write_aio A
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aio_write -P 60 0x66000 0x2000
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wait_break A
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aio_write -P 61 0x6a000 0xe000
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resume A
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aio_flush
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EOF
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# Sequential write, but the next cluster is already allocated
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# and phyiscally in the right position
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cat <<EOF
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write -P 89 0x80000 0x1000
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write -P 90 0x96000 0x8000
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aio_flush
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discard 0x80000 0x10000
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aio_flush
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break write_aio A
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aio_write -P 80 0x86000 0x2000
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wait_break A
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aio_write -P 81 0x8a000 0xe000
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resume A
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aio_flush
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EOF
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# Sequential write, and the next cluster is compressed
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cat <<EOF
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write -P 109 0xa0000 0x1000
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write -c -P 110 0xb0000 0x10000
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aio_flush
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discard 0xa0000 0x10000
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aio_flush
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break write_aio A
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aio_write -P 100 0xa6000 0x2000
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wait_break A
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aio_write -P 101 0xaa000 0xe000
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resume A
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aio_flush
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EOF
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# Reverse sequential write
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cat <<EOF
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break write_aio A
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aio_write -P 121 0xdc000 0x2000
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wait_break A
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aio_write -P 120 0xc4000 0x18000
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resume A
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aio_flush
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EOF
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# Reverse sequential write with a gap
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cat <<EOF
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break write_aio A
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aio_write -P 141 0xfc000 0x2000
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wait_break A
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aio_write -P 140 0xe4000 0x14000
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resume A
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aio_flush
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EOF
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# Allocate an area in the middle and then overwrite with a larger request
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cat <<EOF
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break write_aio A
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aio_write -P 161 0x10c000 0x8000
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wait_break A
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aio_write -P 160 0x104000 0x18000
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resume A
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aio_flush
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EOF
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}
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overlay_io | $QEMU_IO blkdebug::"$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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echo
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echo "== Verify image content =="
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verify_io()
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{
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if ($QEMU_IMG info -U -f "$IMGFMT" "$TEST_IMG" | grep "compat: 0.10" > /dev/null); then
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# For v2 images, discarded clusters are read from the backing file
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# Keep the variable empty so that the backing file value can be used as
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# the default below
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discarded=
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else
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# Discarded clusters are zeroed for v3 or later
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discarded=0
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fi
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echo read -P 0 0 0x10000
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echo read -P 1 0x10000 0x2000
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echo read -P 11 0x12000 0x2000
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echo read -P 1 0x14000 0x4000
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echo read -P 10 0x18000 0x2000
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echo read -P 1 0x1a000 0x2000
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echo read -P 12 0x1c000 0x2000
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echo read -P 1 0x1e000 0x2000
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echo read -P 2 0x20000 0x8000
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echo read -P 20 0x28000 0x2000
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echo read -P 21 0x2a000 0x10000
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echo read -P 3 0x3a000 0x6000
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echo read -P 4 0x40000 0x8000
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echo read -P 40 0x48000 0x2000
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echo read -P 4 0x4a000 0x2000
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echo read -P 41 0x4c000 0x10000
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echo read -P 5 0x5c000 0x4000
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echo read -P 6 0x60000 0x6000
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echo read -P 60 0x66000 0x2000
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echo read -P 6 0x68000 0x2000
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echo read -P 61 0x6a000 0xe000
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echo read -P 70 0x78000 0x6000
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echo read -P 7 0x7e000 0x2000
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echo read -P ${discarded:-8} 0x80000 0x6000
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echo read -P 80 0x86000 0x2000
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echo read -P ${discarded:-8} 0x88000 0x2000
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echo read -P 81 0x8a000 0xe000
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echo read -P 90 0x98000 0x6000
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echo read -P 9 0x9e000 0x2000
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echo read -P ${discarded:-10} 0xa0000 0x6000
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echo read -P 100 0xa6000 0x2000
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echo read -P ${discarded:-10} 0xa8000 0x2000
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echo read -P 101 0xaa000 0xe000
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echo read -P 110 0xb8000 0x8000
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echo read -P 12 0xc0000 0x4000
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echo read -P 120 0xc4000 0x18000
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echo read -P 121 0xdc000 0x2000
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echo read -P 13 0xde000 0x2000
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echo read -P 14 0xe0000 0x4000
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echo read -P 140 0xe4000 0x14000
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echo read -P 15 0xf8000 0x4000
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echo read -P 141 0xfc000 0x2000
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echo read -P 15 0xfe000 0x2000
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echo read -P 16 0x100000 0x4000
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echo read -P 160 0x104000 0x8000
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# Undefined content for 0x10c000 0x8000
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echo read -P 160 0x114000 0x8000
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echo read -P 17 0x11c000 0x4000
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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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