| #!/usr/bin/env bash |
| # |
| # Test concurrent cluster allocations |
| # |
| # 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" |
| |
| 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 |
| _supported_proto file |
| |
| CLUSTER_SIZE=64k |
| size=128M |
| |
| echo |
| echo "== creating backing file for COW tests ==" |
| |
| _make_test_img $size |
| |
| backing_io() |
| { |
| local offset=$1 |
| local sectors=$2 |
| local op=$3 |
| local pattern=0 |
| local cur_sec=0 |
| |
| for ((i=0;i<=$((sectors - 1));i++)); 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 32 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 ==" |
| |
| overlay_io() |
| { |
| # Allocate middle of cluster 1, then write to somewhere before and after it |
| cat <<EOF |
| break write_aio A |
| aio_write -P 10 0x18000 0x2000 |
| wait_break A |
| |
| aio_write -P 11 0x12000 0x2000 |
| aio_write -P 12 0x1c000 0x2000 |
| |
| resume A |
| aio_flush |
| EOF |
| |
| # Sequential write case: Alloc middle of cluster 2, then write overlapping |
| # to next cluster |
| cat <<EOF |
| break write_aio A |
| aio_write -P 20 0x28000 0x2000 |
| wait_break A |
| aio_write -P 21 0x2a000 0x10000 |
| resume A |
| aio_flush |
| EOF |
| |
| # The same with a gap between both requests |
| cat <<EOF |
| break write_aio A |
| aio_write -P 40 0x48000 0x2000 |
| wait_break A |
| aio_write -P 41 0x4c000 0x10000 |
| resume A |
| aio_flush |
| EOF |
| |
| # Sequential write, but the next cluster is already allocated |
| cat <<EOF |
| write -P 70 0x76000 0x8000 |
| aio_flush |
| break write_aio A |
| aio_write -P 60 0x66000 0x2000 |
| wait_break A |
| aio_write -P 61 0x6a000 0xe000 |
| resume A |
| aio_flush |
| EOF |
| |
| # Sequential write, but the next cluster is already allocated |
| # and phyiscally in the right position |
| cat <<EOF |
| write -P 89 0x80000 0x1000 |
| write -P 90 0x96000 0x8000 |
| aio_flush |
| discard 0x80000 0x10000 |
| aio_flush |
| break write_aio A |
| aio_write -P 80 0x86000 0x2000 |
| wait_break A |
| aio_write -P 81 0x8a000 0xe000 |
| resume A |
| aio_flush |
| EOF |
| |
| # Sequential write, and the next cluster is compressed |
| cat <<EOF |
| write -P 109 0xa0000 0x1000 |
| write -c -P 110 0xb0000 0x10000 |
| aio_flush |
| discard 0xa0000 0x10000 |
| aio_flush |
| break write_aio A |
| aio_write -P 100 0xa6000 0x2000 |
| wait_break A |
| aio_write -P 101 0xaa000 0xe000 |
| resume A |
| aio_flush |
| EOF |
| |
| # Reverse sequential write |
| cat <<EOF |
| break write_aio A |
| aio_write -P 121 0xdc000 0x2000 |
| wait_break A |
| aio_write -P 120 0xc4000 0x18000 |
| resume A |
| aio_flush |
| EOF |
| |
| # Reverse sequential write with a gap |
| cat <<EOF |
| break write_aio A |
| aio_write -P 141 0xfc000 0x2000 |
| wait_break A |
| aio_write -P 140 0xe4000 0x14000 |
| resume A |
| aio_flush |
| EOF |
| |
| # Allocate an area in the middle and then overwrite with a larger request |
| cat <<EOF |
| break write_aio A |
| aio_write -P 161 0x10c000 0x8000 |
| wait_break A |
| aio_write -P 160 0x104000 0x18000 |
| resume A |
| aio_flush |
| EOF |
| } |
| |
| overlay_io | $QEMU_IO blkdebug::"$TEST_IMG" | _filter_qemu_io |\ |
| sed -e 's/bytes at offset [0-9]*/bytes at offset XXX/g' |
| |
| echo |
| echo "== Verify image content ==" |
| |
| verify_io() |
| { |
| if ($QEMU_IMG info -U -f "$IMGFMT" "$TEST_IMG" | grep "compat: 0.10" > /dev/null); then |
| # For v2 images, discarded clusters are read from the backing file |
| # Keep the variable empty so that the backing file value can be used as |
| # the default below |
| discarded= |
| else |
| # Discarded clusters are zeroed for v3 or later |
| discarded=0 |
| fi |
| |
| echo read -P 0 0 0x10000 |
| |
| echo read -P 1 0x10000 0x2000 |
| echo read -P 11 0x12000 0x2000 |
| echo read -P 1 0x14000 0x4000 |
| echo read -P 10 0x18000 0x2000 |
| echo read -P 1 0x1a000 0x2000 |
| echo read -P 12 0x1c000 0x2000 |
| echo read -P 1 0x1e000 0x2000 |
| |
| echo read -P 2 0x20000 0x8000 |
| echo read -P 20 0x28000 0x2000 |
| echo read -P 21 0x2a000 0x10000 |
| echo read -P 3 0x3a000 0x6000 |
| |
| echo read -P 4 0x40000 0x8000 |
| echo read -P 40 0x48000 0x2000 |
| echo read -P 4 0x4a000 0x2000 |
| echo read -P 41 0x4c000 0x10000 |
| echo read -P 5 0x5c000 0x4000 |
| |
| echo read -P 6 0x60000 0x6000 |
| echo read -P 60 0x66000 0x2000 |
| echo read -P 6 0x68000 0x2000 |
| echo read -P 61 0x6a000 0xe000 |
| echo read -P 70 0x78000 0x6000 |
| echo read -P 7 0x7e000 0x2000 |
| |
| echo read -P ${discarded:-8} 0x80000 0x6000 |
| echo read -P 80 0x86000 0x2000 |
| echo read -P ${discarded:-8} 0x88000 0x2000 |
| echo read -P 81 0x8a000 0xe000 |
| echo read -P 90 0x98000 0x6000 |
| echo read -P 9 0x9e000 0x2000 |
| |
| echo read -P ${discarded:-10} 0xa0000 0x6000 |
| echo read -P 100 0xa6000 0x2000 |
| echo read -P ${discarded:-10} 0xa8000 0x2000 |
| echo read -P 101 0xaa000 0xe000 |
| echo read -P 110 0xb8000 0x8000 |
| |
| echo read -P 12 0xc0000 0x4000 |
| echo read -P 120 0xc4000 0x18000 |
| echo read -P 121 0xdc000 0x2000 |
| echo read -P 13 0xde000 0x2000 |
| |
| echo read -P 14 0xe0000 0x4000 |
| echo read -P 140 0xe4000 0x14000 |
| echo read -P 15 0xf8000 0x4000 |
| echo read -P 141 0xfc000 0x2000 |
| echo read -P 15 0xfe000 0x2000 |
| |
| echo read -P 16 0x100000 0x4000 |
| echo read -P 160 0x104000 0x8000 |
| # Undefined content for 0x10c000 0x8000 |
| echo read -P 160 0x114000 0x8000 |
| echo read -P 17 0x11c000 0x4000 |
| } |
| |
| verify_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io |
| |
| _check_test_img |
| |
| # success, all done |
| echo "*** done" |
| rm -f $seq.full |
| status=0 |