019

   1 #!/bin/sh
   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, write to the Free Software
  21 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  22 # USA
  23 #
  24
  25 # creator
  26 owner=kwolf@redhat.com
  27
  28 seq=`basename $0`
  29 echo "QA output created by $seq"
  30
  31 here=`pwd`
  32 tmp=/tmp/$$
  33 status=1        # failure is the default!
  34
  35 _cleanup()
  36 {
  37         _cleanup_test_img
  38     rm -f $TEST_IMG.base
  39     rm -f $TEST_IMG.orig
  40 }
  41 trap "_cleanup; exit \$status" 0 1 2 3 15
  42
  43 # get standard environment, filters and checks
  44 . ./common.rc
  45 . ./common.filter
  46 . ./common.pattern
  47
  48 # Any format supporting backing files
  49 _supported_fmt qcow qcow2 vmdk
  50 _supported_os Linux
  51
  52 TEST_OFFSETS="0 4294967296"
  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 writev $(( offset )) 512 1024 64
  62
  63     # Complete backing clusters
  64     io writev $(( offset  + 1024 * 1024))  65536 65536 1
  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 writev $(( offset + 512 )) 512 1024 64
  80
  81     # Complete test image clusters
  82     io writev $(( offset + 1024 * 1024 + 65536))  65536 65536 1
  83 done
  84 _check_test_img
  85
  86 mv $TEST_IMG $TEST_IMG.orig
  87 $QEMU_IMG convert -O $IMGFMT -B $TEST_IMG.base $TEST_IMG.orig $TEST_IMG
  88
  89 echo "Checking if backing clusters are allocated when they shouldn't"
  90 echo
  91 for offset in $TEST_OFFSETS; do
  92     # Complete backing clusters
  93     is_allocated $(( offset  + 1024 * 1024))  65536 65536 1
  94 done
  95
  96 echo "Reading"
  97 echo
  98
  99 for offset in $TEST_OFFSETS; do
 100     # Some clusters with alternating backing file/image file reads
 101     io readv $(( offset )) 512 1024 64
 102     io readv $(( offset + 512 )) 512 1024 64
 103
 104     # Complete test image clusters
 105     io readv $(( offset  + 1024 * 1024))  65536 65536 1
 106     io readv $(( offset + 1024 * 1024 + 65536))  65536 65536 1
 107
 108     # Empty sectors
 109     io_zero readv $(( offset + 1024 * 1024 + 65536 * 4 )) 65536 65536 1
 110 done
 111 _check_test_img
 112
 113 # success, all done
 114 echo "*** done"
 115 rm -f $seq.full
 116 status=0