1#!/usr/bin/env bash 2# 3# Test write request with required alignment larger than the cluster size 4# 5# Copyright (C) 2019 Igalia, S.L. 6# Author: Alberto Garcia <berto@igalia.com> 7# 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. 12# 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. 17# 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/>. 20# 21 22# creator 23owner=berto@igalia.com 24 25seq=`basename $0` 26echo "QA output created by $seq" 27 28status=1 # failure is the default! 29 30_cleanup() 31{ 32 _cleanup_test_img 33} 34trap "_cleanup; exit \$status" 0 1 2 3 15 35 36# get standard environment, filters and checks 37. ./common.rc 38. ./common.filter 39 40_supported_fmt qcow2 41_supported_proto file fuse 42 43echo 44echo "== Required alignment larger than cluster size ==" 45 46CLUSTER_SIZE=2k _make_test_img 1M 47# Since commit c8bb23cbdb writing to an unallocated cluster fills the 48# empty COW areas with bdrv_write_zeroes(flags=BDRV_REQ_NO_FALLBACK) 49$QEMU_IO -c "open -o driver=$IMGFMT,file.align=4k blkdebug::$TEST_IMG" \ 50 -c "write 0 512" | _filter_qemu_io 51 52# success, all done 53echo "*** done" 54rm -f $seq.full 55status=0 56