017

   1 #!/bin/bash
   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 qed
  44 _supported_proto generic
  45 _supported_os Linux
  46
  47 TEST_OFFSETS="0 4294967296"
  48
  49 _make_test_img 6G
  50
  51 echo "Filling base image"
  52 echo
  53
  54 for offset in $TEST_OFFSETS; do
  55     # Some clusters with alternating backing file/image file reads
  56     io writev $(( offset )) 512 1024 64
  57
  58     # Complete backing clusters
  59     io writev $(( offset  + 64 * 1024))  65536 65536 1
  60 done
  61 _check_test_img
  62
  63 echo "Creating test image with backing file"
  64 echo
  65
  66 mv $TEST_IMG $TEST_IMG.base
  67 _make_test_img -b $TEST_IMG.base 6G
  68
  69 echo "Filling test image"
  70 echo
  71
  72 for offset in $TEST_OFFSETS; do
  73     # Some clusters with alternating backing file/image file reads
  74     io writev $(( offset + 512 )) 512 1024 64
  75
  76     # Complete test image clusters
  77     io writev $(( offset + 64 * 1024 + 65536))  65536 65536 1
  78 done
  79 _check_test_img
  80
  81 echo "Reading"
  82 echo
  83
  84 for offset in $TEST_OFFSETS; do
  85     # Some clusters with alternating backing file/image file reads
  86     io readv $(( offset )) 512 1024 64
  87     io readv $(( offset + 512 )) 512 1024 64
  88
  89     # Complete test image clusters
  90     io readv $(( offset  + 64 * 1024))  65536 65536 1
  91     io readv $(( offset + 64 * 1024 + 65536))  65536 65536 1
  92
  93     # Empty sectors
  94     io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1
  95 done
  96 _check_test_img
  97
  98 # success, all done
  99 echo "*** done"
 100 rm -f $seq.full
 101 status=0