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1 #!/usr/bin/env bash 2 # group: rw backing auto quick 3 # 4 # Simple backing file reads 5 # 6 # Copyright (C) 2009 Red Hat, Inc. 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 23 owner=kwolf@redhat.com 24 25 seq=`basename $0` 26 echo "QA output created by $seq" 27 28 status=1 # failure is the default! 29 30 _cleanup() 31 { 32 _cleanup_test_img 33 } 34 trap "_cleanup; exit \$status" 0 1 2 3 15 35 36 # get standard environment, filters and checks 37 . ./common.rc 38 . ./common.filter 39 . ./common.pattern 40 41 # Any format supporting backing files 42 _supported_fmt qcow qcow2 vmdk qed 43 _supported_proto generic 44 _unsupported_imgopts "subformat=monolithicFlat" "subformat=twoGbMaxExtentFlat" \ 45 "subformat=streamOptimized" 46 47 TEST_OFFSETS="0 4294967296" 48 49 TEST_IMG_SAVE=$TEST_IMG 50 TEST_IMG=$TEST_IMG.base 51 _make_test_img 6G 52 53 echo "Filling base image" 54 echo 55 56 for offset in $TEST_OFFSETS; do 57 # Some clusters with alternating backing file/image file reads 58 io writev $(( offset )) 512 1024 64 59 60 # Complete backing clusters 61 io writev $(( offset + 64 * 1024)) 65536 65536 1 62 done 63 _check_test_img 64 65 echo "Creating test image with backing file" 66 echo 67 68 TEST_IMG=$TEST_IMG_SAVE 69 _make_test_img -b "$TEST_IMG.base" -F $IMGFMT 6G 70 71 echo "Filling test image" 72 echo 73 74 for offset in $TEST_OFFSETS; do 75 # Some clusters with alternating backing file/image file reads 76 io writev $(( offset + 512 )) 512 1024 64 77 78 # Complete test image clusters 79 io writev $(( offset + 64 * 1024 + 65536)) 65536 65536 1 80 done 81 _check_test_img 82 83 echo "Reading" 84 echo 85 86 for offset in $TEST_OFFSETS; do 87 # Some clusters with alternating backing file/image file reads 88 io readv $(( offset )) 512 1024 64 89 io readv $(( offset + 512 )) 512 1024 64 90 91 # Complete test image clusters 92 io readv $(( offset + 64 * 1024)) 65536 65536 1 93 io readv $(( offset + 64 * 1024 + 65536)) 65536 65536 1 94 95 # Empty sectors 96 io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1 97 done 98 _check_test_img 99 100 # success, all done 101 echo "*** done" 102 rm -f $seq.full 103 status=0