| #!/bin/bash |
| # |
| # Test bdrv_write_zeroes with backing files |
| # |
| # 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 qcow qcow2 vmdk qed |
| _supported_proto generic |
| _supported_os Linux |
| |
| CLUSTER_SIZE=4k |
| size=128M |
| |
| echo |
| echo "== creating backing file for COW tests ==" |
| |
| _make_test_img $size |
| $QEMU_IO -c "write -P 0x55 0 1M" "$TEST_IMG" | _filter_qemu_io |
| mv "$TEST_IMG" "$TEST_IMG.base" |
| |
| _make_test_img -b "$TEST_IMG.base" 6G |
| |
| echo |
| echo "== zero write with backing file ==" |
| $QEMU_IO -c "write -z 64k 192k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "write -z 513k 13k" "$TEST_IMG" | _filter_qemu_io |
| |
| _check_test_img |
| |
| echo |
| echo "== verifying patterns (3) ==" |
| $QEMU_IO -c "read -P 0x55 0 64k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x0 64k 192k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x55 256k 257k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x0 513k 13k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x55 526k 498k" "$TEST_IMG" | _filter_qemu_io |
| |
| echo |
| echo "== overwriting zero cluster ==" |
| $QEMU_IO -c "write -P 0xa 60k 8k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "write -P 0xb 64k 8k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "write -P 0xc 76k 4k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "write -P 0xd 252k 8k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "write -P 0xe 248k 8k" "$TEST_IMG" | _filter_qemu_io |
| |
| _check_test_img |
| |
| echo |
| echo "== verifying patterns (4) ==" |
| $QEMU_IO -c "read -P 0x55 0 60k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0xa 60k 4k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0xb 64k 8k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x0 72k 4k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0xc 76k 4k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x0 80k 168k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0xe 248k 8k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0xd 256k 4k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x55 260k 64k" "$TEST_IMG" | _filter_qemu_io |
| |
| echo |
| echo "== re-zeroing overwritten area ==" |
| $QEMU_IO -c "write -z 64k 192k" "$TEST_IMG" | _filter_qemu_io |
| |
| _check_test_img |
| |
| echo |
| echo "== verifying patterns (5) ==" |
| $QEMU_IO -c "read -P 0x55 0 60k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0xa 60k 4k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x0 64k 192k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0xd 256k 4k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x55 260k 253k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x0 513k 13k" "$TEST_IMG" | _filter_qemu_io |
| $QEMU_IO -c "read -P 0x55 526k 498k" "$TEST_IMG" | _filter_qemu_io |
| |
| # success, all done |
| echo "*** done" |
| rm -f $seq.full |
| status=0 |