#!/usr/bin/env bash # # Simple backing file reads # # Copyright (C) 2009 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 $seq" status=1 # failure is the default! _cleanup() { _cleanup_test_img } trap "_cleanup; exit \$status" 0 1 2 3 15 # get standard environment, filters and checks . ./common.rc . ./common.filter . ./common.pattern # Any format supporting backing files _supported_fmt qcow qcow2 vmdk qed _supported_proto generic _unsupported_proto vxhs _unsupported_imgopts "subformat=monolithicFlat" "subformat=twoGbMaxExtentFlat" \ "subformat=streamOptimized" TEST_OFFSETS="0 4294967296" TEST_IMG_SAVE=$TEST_IMG TEST_IMG=$TEST_IMG.base _make_test_img 6G echo "Filling base image" echo for offset in $TEST_OFFSETS; do # Some clusters with alternating backing file/image file reads io writev $(( offset )) 512 1024 64 # Complete backing clusters io writev $(( offset + 64 * 1024)) 65536 65536 1 done _check_test_img echo "Creating test image with backing file" echo TEST_IMG=$TEST_IMG_SAVE _make_test_img -b "$TEST_IMG.base" 6G echo "Filling test image" echo for offset in $TEST_OFFSETS; do # Some clusters with alternating backing file/image file reads io writev $(( offset + 512 )) 512 1024 64 # Complete test image clusters io writev $(( offset + 64 * 1024 + 65536)) 65536 65536 1 done _check_test_img echo "Reading" echo for offset in $TEST_OFFSETS; do # Some clusters with alternating backing file/image file reads io readv $(( offset )) 512 1024 64 io readv $(( offset + 512 )) 512 1024 64 # Complete test image clusters io readv $(( offset + 64 * 1024)) 65536 65536 1 io readv $(( offset + 64 * 1024 + 65536)) 65536 65536 1 # Empty sectors io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1 done _check_test_img # success, all done echo "*** done" rm -f $seq.full status=0