xref: /openbmc/qemu/tests/qemu-iotests/268 (revision 812b31d3)
1#!/usr/bin/env bash
2# group: rw auto quick
3#
4# Test write request with required alignment larger than the cluster size
5#
6# Copyright (C) 2019 Igalia, S.L.
7# Author: Alberto Garcia <berto@igalia.com>
8#
9# This program is free software; you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation; either version 2 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program.  If not, see <http://www.gnu.org/licenses/>.
21#
22
23# creator
24owner=berto@igalia.com
25
26seq=`basename $0`
27echo "QA output created by $seq"
28
29status=1	# failure is the default!
30
31_cleanup()
32{
33    _cleanup_test_img
34}
35trap "_cleanup; exit \$status" 0 1 2 3 15
36
37# get standard environment, filters and checks
38. ./common.rc
39. ./common.filter
40
41_supported_fmt qcow2
42_supported_proto file fuse
43
44echo
45echo "== Required alignment larger than cluster size =="
46
47CLUSTER_SIZE=2k _make_test_img 1M
48# Since commit c8bb23cbdb writing to an unallocated cluster fills the
49# empty COW areas with bdrv_write_zeroes(flags=BDRV_REQ_NO_FALLBACK)
50$QEMU_IO -c "open -o driver=$IMGFMT,file.align=4k blkdebug::$TEST_IMG" \
51         -c "write 0 512" | _filter_qemu_io
52
53# success, all done
54echo "*** done"
55rm -f $seq.full
56status=0
57