013

   1 #!/bin/bash
   2 #
   3 # qcow2 pattern test, empty and compressed image - 4k cluster patterns
   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 # much of this could be generic for any format supporting compression.
  43 _supported_fmt qcow qcow2
  44 _supported_os Linux
  45
  46 TEST_OFFSETS="0 4294967296"
  47 TEST_OPS="writev read write readv"
  48 CLUSTER_SIZE=4096
  49
  50 _make_test_img 6G
  51
  52 echo "Testing empty image"
  53 echo
  54
  55 for offset in $TEST_OFFSETS; do
  56     echo "At offset $offset:"
  57     for op in $TEST_OPS; do
  58         io_test $op $offset $CLUSTER_SIZE 8
  59     done
  60     _check_test_img
  61 done
  62
  63
  64 echo "Compressing image"
  65 echo
  66
  67 mv $TEST_IMG $TEST_IMG.orig
  68 $QEMU_IMG convert -f $IMGFMT -O $IMGFMT -c $TEST_IMG.orig $TEST_IMG
  69
  70 echo "Testing compressed image"
  71 echo
  72
  73 for offset in $TEST_OFFSETS; do
  74     echo "With offset $offset:"
  75     for op in read readv; do
  76         io_test $op $offset $CLUSTER_SIZE 8
  77     done
  78     _check_test_img
  79 done
  80
  81 echo "Testing compressed image with odd offsets"
  82 echo
  83 for offset in $TEST_OFFSETS; do
  84     # Some odd offset (1 sector), so tests will write to areas occupied partly
  85     # by old (compressed) data and empty clusters
  86     offset=$((offset + 512))
  87     echo "With offset $offset:"
  88     for op in $TEST_OPS; do
  89         io_test $op $offset $CLUSTER_SIZE 8
  90     done
  91     _check_test_img
  92 done
  93
  94 # success, all done
  95 echo "*** done"
  96 rm -f $seq.full
  97 status=0