2 # group: rw auto aio quick
4 # Test concurrent cluster allocations
6 # Copyright (C) 2012 Red Hat, Inc.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
23 owner=kwolf@redhat.com
26 echo "QA output created by $seq"
28 status=1 # failure is the default!
34 trap "_cleanup; exit \$status" 0 1 2 3 15
36 # get standard environment, filters and checks
41 _supported_proto file fuse
42 # data_file does not support compressed clusters
43 _unsupported_imgopts data_file
49 echo "== creating backing file for COW tests =="
51 TEST_IMG_SAVE=$TEST_IMG
52 TEST_IMG="$TEST_IMG.base"
63 for ((i=0;i<=$((sectors - 1));i++)); do
64 cur_sec=$((offset / 65536 + i))
65 pattern=$(( ( (cur_sec % 128) + (cur_sec / 128)) % 128 ))
67 echo "$op -P $pattern $((cur_sec * 64))k 64k"
71 backing_io 0 32 write | $QEMU_IO "$TEST_IMG" | _filter_qemu_io
73 TEST_IMG=$TEST_IMG_SAVE
74 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT 6G
77 echo "== Some concurrent requests touching the same cluster =="
81 # Allocate middle of cluster 1, then write to somewhere before and after it
84 aio_write -P 10 0x18000 0x2000
87 aio_write -P 11 0x12000 0x2000
88 aio_write -P 12 0x1c000 0x2000
94 # Sequential write case: Alloc middle of cluster 2, then write overlapping
98 aio_write -P 20 0x28000 0x2000
100 aio_write -P 21 0x2a000 0x10000
105 # The same with a gap between both requests
108 aio_write -P 40 0x48000 0x2000
110 aio_write -P 41 0x4c000 0x10000
115 # Sequential write, but the next cluster is already allocated
117 write -P 70 0x76000 0x8000
120 aio_write -P 60 0x66000 0x2000
122 aio_write -P 61 0x6a000 0xe000
127 # Sequential write, but the next cluster is already allocated
128 # and physically in the right position
130 write -P 89 0x80000 0x1000
131 write -P 90 0x96000 0x8000
133 discard 0x80000 0x10000
136 aio_write -P 80 0x86000 0x2000
138 aio_write -P 81 0x8a000 0xe000
143 # Sequential write, and the next cluster is compressed
145 write -P 109 0xa0000 0x1000
146 write -c -P 110 0xb0000 0x10000
148 discard 0xa0000 0x10000
151 aio_write -P 100 0xa6000 0x2000
153 aio_write -P 101 0xaa000 0xe000
158 # Reverse sequential write
161 aio_write -P 121 0xdc000 0x2000
163 aio_write -P 120 0xc4000 0x18000
168 # Reverse sequential write with a gap
171 aio_write -P 141 0xfc000 0x2000
173 aio_write -P 140 0xe4000 0x14000
178 # Allocate an area in the middle and then overwrite with a larger request
181 aio_write -P 161 0x10c000 0x8000
183 aio_write -P 160 0x104000 0x18000
189 overlay_io | $QEMU_IO blkdebug::"$TEST_IMG" | _filter_qemu_io |\
190 sed -e 's/[0-9]*\/[0-9]* bytes at offset [0-9]*/XXX\/XXX bytes at offset XXX/g' \
191 -e 's/^[0-9]* KiB/XXX KiB/g'
194 echo "== Verify image content =="
198 if ($QEMU_IMG info -U -f "$IMGFMT" "$TEST_IMG" | grep "compat: 0.10" > /dev/null); then
199 # In v2 images clusters are not discarded when there is a backing file.
200 # Keep the variable empty so that the previous value can be used as
204 # Discarded clusters are zeroed for v3 or later
208 echo read -P 0 0 0x10000
210 echo read -P 1 0x10000 0x2000
211 echo read -P 11 0x12000 0x2000
212 echo read -P 1 0x14000 0x4000
213 echo read -P 10 0x18000 0x2000
214 echo read -P 1 0x1a000 0x2000
215 echo read -P 12 0x1c000 0x2000
216 echo read -P 1 0x1e000 0x2000
218 echo read -P 2 0x20000 0x8000
219 echo read -P 20 0x28000 0x2000
220 echo read -P 21 0x2a000 0x10000
221 echo read -P 3 0x3a000 0x6000
223 echo read -P 4 0x40000 0x8000
224 echo read -P 40 0x48000 0x2000
225 echo read -P 4 0x4a000 0x2000
226 echo read -P 41 0x4c000 0x10000
227 echo read -P 5 0x5c000 0x4000
229 echo read -P 6 0x60000 0x6000
230 echo read -P 60 0x66000 0x2000
231 echo read -P 6 0x68000 0x2000
232 echo read -P 61 0x6a000 0xe000
233 echo read -P 70 0x78000 0x6000
234 echo read -P 7 0x7e000 0x2000
236 echo read -P ${discarded:-89} 0x80000 0x1000
237 echo read -P ${discarded:-8} 0x81000 0x5000
238 echo read -P 80 0x86000 0x2000
239 echo read -P ${discarded:-8} 0x88000 0x2000
240 echo read -P 81 0x8a000 0xe000
241 echo read -P 90 0x98000 0x6000
242 echo read -P 9 0x9e000 0x2000
244 echo read -P ${discarded:-109} 0xa0000 0x1000
245 echo read -P ${discarded:-10} 0xa1000 0x5000
246 echo read -P 100 0xa6000 0x2000
247 echo read -P ${discarded:-10} 0xa8000 0x2000
248 echo read -P 101 0xaa000 0xe000
249 echo read -P 110 0xb8000 0x8000
251 echo read -P 12 0xc0000 0x4000
252 echo read -P 120 0xc4000 0x18000
253 echo read -P 121 0xdc000 0x2000
254 echo read -P 13 0xde000 0x2000
256 echo read -P 14 0xe0000 0x4000
257 echo read -P 140 0xe4000 0x14000
258 echo read -P 15 0xf8000 0x4000
259 echo read -P 141 0xfc000 0x2000
260 echo read -P 15 0xfe000 0x2000
262 echo read -P 16 0x100000 0x4000
263 echo read -P 160 0x104000 0x8000
264 # Undefined content for 0x10c000 0x8000
265 echo read -P 160 0x114000 0x8000
266 echo read -P 17 0x11c000 0x4000
269 verify_io | $QEMU_IO "$TEST_IMG" | _filter_qemu_io