tests/qemu-iotests/017

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