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Annotation of qemu/tests/qemu-iotests/019, revision 1.1

1.1     ! root        1: #!/bin/bash
        !             2: #
        !             3: # When using a backing file for the output image in qemu-img convert,
        !             4: # the backing file clusters must not copied. The data must still be
        !             5: # read correctly.
        !             6: #
        !             7: # Copyright (C) 2009 Red Hat, Inc.
        !             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
        !            24: [email protected]
        !            25: 
        !            26: seq=`basename $0`
        !            27: echo "QA output created by $seq"
        !            28: 
        !            29: here=`pwd`
        !            30: tmp=/tmp/$$
        !            31: status=1       # failure is the default!
        !            32: 
        !            33: _cleanup()
        !            34: {
        !            35:        _cleanup_test_img
        !            36:     rm -f $TEST_IMG.base
        !            37:     rm -f $TEST_IMG.orig
        !            38: }
        !            39: trap "_cleanup; exit \$status" 0 1 2 3 15
        !            40: 
        !            41: # get standard environment, filters and checks
        !            42: . ./common.rc
        !            43: . ./common.filter
        !            44: . ./common.pattern
        !            45: 
        !            46: # Any format supporting backing files
        !            47: _supported_fmt qcow qcow2 vmdk qed
        !            48: _supported_proto generic
        !            49: _supported_os Linux
        !            50: 
        !            51: TEST_OFFSETS="0 4294967296"
        !            52: CLUSTER_SIZE=65536
        !            53: 
        !            54: _make_test_img 6G
        !            55: 
        !            56: echo "Filling base image"
        !            57: echo
        !            58: 
        !            59: for offset in $TEST_OFFSETS; do
        !            60:     # Some clusters with alternating backing file/image file reads
        !            61:     io_pattern writev $(( offset )) 512 1024 64 42
        !            62: 
        !            63:     # Complete backing clusters
        !            64:     io_pattern writev $(( offset  + 1024 * 1024))  $CLUSTER_SIZE $CLUSTER_SIZE 1 42
        !            65: done
        !            66: _check_test_img
        !            67: 
        !            68: echo "Creating test image with backing file"
        !            69: echo
        !            70: 
        !            71: mv $TEST_IMG $TEST_IMG.base
        !            72: _make_test_img -b $TEST_IMG.base 6G
        !            73: 
        !            74: echo "Filling test image"
        !            75: echo
        !            76: 
        !            77: for offset in $TEST_OFFSETS; do
        !            78:     # Some clusters with alternating backing file/image file reads
        !            79:     io_pattern writev $(( offset + 512 )) 512 1024 64 43
        !            80: 
        !            81:     # Complete test image clusters
        !            82:     io_pattern writev $(( offset + 1024 * 1024 + $CLUSTER_SIZE))  $CLUSTER_SIZE $CLUSTER_SIZE 1 43
        !            83: done
        !            84: _check_test_img
        !            85: 
        !            86: mv $TEST_IMG $TEST_IMG.orig
        !            87: 
        !            88: 
        !            89: 
        !            90: # Test the conversion twice: One test with the old-style -B option and another
        !            91: # one with -o backing_file
        !            92: 
        !            93: for backing_option in "-B $TEST_IMG.base" "-o backing_file=$TEST_IMG.base"; do
        !            94: 
        !            95:     echo
        !            96:     echo Testing conversion with $backing_option | _filter_testdir | _filter_imgfmt
        !            97:     echo
        !            98:     $QEMU_IMG convert -O $IMGFMT $backing_option $TEST_IMG.orig $TEST_IMG
        !            99: 
        !           100:     echo "Checking if backing clusters are allocated when they shouldn't"
        !           101:     echo
        !           102:     for offset in $TEST_OFFSETS; do
        !           103:         # Complete backing clusters
        !           104:         is_allocated $(( offset  + 1024 * 1024))  $CLUSTER_SIZE $CLUSTER_SIZE 1
        !           105:     done
        !           106: 
        !           107:     echo "Reading"
        !           108:     echo
        !           109: 
        !           110:     for offset in $TEST_OFFSETS; do
        !           111:         # Some clusters with alternating backing file/image file reads
        !           112:         io_pattern readv $(( offset )) 512 1024 64 42
        !           113:         io_pattern readv $(( offset + 512 )) 512 1024 64 43
        !           114: 
        !           115:         # Complete test image clusters
        !           116:         io_pattern readv $(( offset  + 1024 * 1024))  $CLUSTER_SIZE $CLUSTER_SIZE 1 42
        !           117:         io_pattern readv $(( offset + 1024 * 1024 + $CLUSTER_SIZE))  $CLUSTER_SIZE $CLUSTER_SIZE 1 43
        !           118: 
        !           119:         # Empty sectors
        !           120:         io_zero readv $(( offset + 1024 * 1024 + $CLUSTER_SIZE * 4 )) $CLUSTER_SIZE $CLUSTER_SIZE 1
        !           121:     done
        !           122:     _check_test_img
        !           123: 
        !           124: done
        !           125: 
        !           126: # success, all done
        !           127: echo "*** done"
        !           128: rm -f $seq.full
        !           129: status=0

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