135 lines
3.1 KiB
Bash
Executable File
135 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
|
|
#
|
|
# Test COW from backing files with AIO
|
|
#
|
|
# Copyright (C) 2012 Red Hat, Inc.
|
|
#
|
|
# 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=kwolf@redhat.com
|
|
|
|
seq=`basename $0`
|
|
echo "QA output created by $seq"
|
|
|
|
here=`pwd`
|
|
tmp=/tmp/$$
|
|
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 qed
|
|
_supported_proto file
|
|
_supported_os Linux
|
|
|
|
CLUSTER_SIZE=2M
|
|
size=128M
|
|
|
|
echo
|
|
echo "== creating backing file for COW tests =="
|
|
|
|
_make_test_img $size
|
|
|
|
function backing_io()
|
|
{
|
|
local offset=$1
|
|
local sectors=$2
|
|
local op=$3
|
|
local pattern=0
|
|
local cur_sec=0
|
|
|
|
for i in $(seq 0 $((sectors - 1))); do
|
|
cur_sec=$((offset / 65536 + i))
|
|
pattern=$(( ( (cur_sec % 128) + (cur_sec / 128)) % 128 ))
|
|
|
|
echo "$op -P $pattern $((cur_sec * 64))k 64k"
|
|
done
|
|
}
|
|
|
|
backing_io 0 256 write | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
|
|
|
|
mv "$TEST_IMG" "$TEST_IMG.base"
|
|
|
|
_make_test_img -b "$TEST_IMG.base" 6G
|
|
|
|
echo
|
|
echo "== Some concurrent requests touching the same cluster =="
|
|
|
|
function overlay_io()
|
|
{
|
|
# Start with a request touching two clusters
|
|
echo aio_write -P 0x80 2020k 80k
|
|
|
|
# Then add some requests all over the place
|
|
for i in $(seq 0 15; seq 17 31; seq 33 47); do
|
|
echo aio_write -P $((0x81 + i)) $((i * 128))k 64k
|
|
done
|
|
|
|
# Then backwards overwriting part of them
|
|
for i in $( (seq 0 15; seq 17 31; seq 33 47) | tac); do
|
|
echo aio_write -P $((0x81 + i)) $((i * 128 + 32))k 64k
|
|
done
|
|
|
|
# And finally crossing the next cluster boundary
|
|
echo aio_write -P 0x90 4080k 80k
|
|
}
|
|
|
|
overlay_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io |\
|
|
sed -e 's/bytes at offset [0-9]*/bytes at offset XXX/g' \
|
|
-e 's/qemu-io> //g' | paste - - | sort | tr '\t' '\n'
|
|
|
|
echo
|
|
echo "== Verify image content =="
|
|
|
|
function verify_io()
|
|
{
|
|
echo read -P 31 2016k 4k
|
|
echo read -P 0x80 2020k 80k
|
|
echo read -P 32 2100k 12k
|
|
echo read -P 33 2112k 64k
|
|
|
|
echo read -P 63 4064k 16k
|
|
echo read -P 0x90 4080k 80k
|
|
echo read -P 65 4160k 64k
|
|
|
|
for i in $(seq 0 15; seq 17 31; seq 33 47); do
|
|
echo read -P $((0x81 + i)) $((i * 128))k 96k
|
|
done
|
|
|
|
for i in $(seq 0 14; seq 16 30; seq 32 47); do
|
|
local cur_sec=$(( i * 2 + 1 ))
|
|
local pattern=$(( ( (cur_sec % 128) + (cur_sec / 128)) % 128 ))
|
|
|
|
echo read -P $pattern $((i * 128 + 96))k 32k
|
|
done
|
|
}
|
|
|
|
verify_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
|
|
|
|
_check_test_img
|
|
|
|
# success, all done
|
|
echo "*** done"
|
|
rm -f $seq.full
|
|
status=0
|