017

   1 #!/bin/sh
   2 #
   3 # Simple backing file reads
   4 #
   5 # Copyright (C) 2009 Red Hat, Inc.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 2 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20
  21 # creator
  22 owner=kwolf@redhat.com
  23
  24 seq=`basename $0`
  25 echo "QA output created by $seq"
  26
  27 here=`pwd`
  28 tmp=/tmp/$$
  29 status=1        # failure is the default!
  30
  31 _cleanup()
  32 {
  33         _cleanup_test_img
  34 }
  35 trap "_cleanup; exit \$status" 0 1 2 3 15
  36
  37 # get standard environment, filters and checks
  38 . ./common.rc
  39 . ./common.filter
  40 . ./common.pattern
  41
  42 # Any format supporting backing files
  43 _supported_fmt qcow qcow2 vmdk
  44 _supported_os Linux
  45
  46 TEST_OFFSETS="0 4294967296"
  47
  48 _make_test_img 6G
  49
  50 echo "Filling base image"
  51 echo
  52
  53 for offset in $TEST_OFFSETS; do
  54     # Some clusters with alternating backing file/image file reads
  55     io writev $(( offset )) 512 1024 64
  56
  57     # Complete backing clusters
  58     io writev $(( offset  + 64 * 1024))  65536 65536 1
  59 done
  60 _check_test_img
  61
  62 echo "Creating test image with backing file"
  63 echo
  64
  65 mv $TEST_IMG $TEST_IMG.base
  66 _make_test_img -b $TEST_IMG.base 6G
  67
  68 echo "Filling test image"
  69 echo
  70
  71 for offset in $TEST_OFFSETS; do
  72     # Some clusters with alternating backing file/image file reads
  73     io writev $(( offset + 512 )) 512 1024 64
  74
  75     # Complete test image clusters
  76     io writev $(( offset + 64 * 1024 + 65536))  65536 65536 1
  77 done
  78 _check_test_img
  79
  80 echo "Reading"
  81 echo
  82
  83 for offset in $TEST_OFFSETS; do
  84     # Some clusters with alternating backing file/image file reads
  85     io readv $(( offset )) 512 1024 64
  86     io readv $(( offset + 512 )) 512 1024 64
  87
  88     # Complete test image clusters
  89     io readv $(( offset  + 64 * 1024))  65536 65536 1
  90     io readv $(( offset + 64 * 1024 + 65536))  65536 65536 1
  91
  92     # Empty sectors
  93     io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1
  94 done
  95 _check_test_img
  96
  97 # success, all done
  98 echo "*** done"
  99 rm -f $seq.full
 100 status=0