tests/xfs/260

   1 #! /bin/bash
   2 # FS QA Test 260
   3 #
   4 # Test per-inode DAX flag by mmap direct/buffered IO.
   5 #
   6 #-----------------------------------------------------------------------
   7 # Copyright (c) 2017 Red Hat Inc.  All Rights Reserved.
   8 #
   9 # This program is free software; you can redistribute it and/or
  10 # modify it under the terms of the GNU General Public License as
  11 # published by the Free Software Foundation.
  12 #
  13 # This program is distributed in the hope that it would be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write the Free Software Foundation,
  20 # Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  21 #-----------------------------------------------------------------------
  22 #
  23
  24 seq=`basename $0`
  25 seqres=$RESULT_DIR/$seq
  26 echo "QA output created by $seq"
  27
  28 here=`pwd`
  29 tmp=/tmp/$$
  30 status=1        # failure is the default!
  31 trap "_cleanup; exit \$status" 0 1 2 3 15
  32
  33 _cleanup()
  34 {
  35         cd /
  36         rm -f $tmp.*
  37 }
  38
  39 # get standard environment, filters and checks
  40 . ./common/rc
  41 . ./common/filter
  42
  43 # remove previous $seqres.full before test
  44 rm -f $seqres.full
  45
  46 _supported_fs xfs
  47 _supported_os Linux
  48 _require_scratch_dax
  49 _require_test_program "feature"
  50 _require_test_program "t_mmap_dio"
  51 _require_xfs_io_command "chattr" "+/-x"
  52 _require_xfs_io_command "falloc"
  53
  54 prep_files()
  55 {
  56         rm -f $SCRATCH_MNT/tf_{s,d}
  57
  58         $XFS_IO_PROG -f -c "falloc 0 $tsize" \
  59                 $SCRATCH_MNT/tf_{s,d} >> $seqres.full 2>&1
  60 }
  61
  62 t_both_dax()
  63 {
  64         prep_files
  65         $XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_{s,d}
  66         # with O_DIRECT first
  67         src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} $1 "dio both dax"
  68
  69         prep_files
  70         $XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_{s,d}
  71         # again with buffered IO
  72         src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
  73                 $1 "buffered both dax"
  74 }
  75
  76 t_nondax_to_dax()
  77 {
  78         prep_files
  79         $XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_s
  80         $XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_d
  81         src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} \
  82                 $1 "dio nondax to dax"
  83
  84         prep_files
  85         $XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_s
  86         $XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_d
  87         src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
  88                 $1 "buffered nondax to dax"
  89 }
  90
  91 t_dax_to_nondax()
  92 {
  93         prep_files
  94         $XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_s
  95         $XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_d
  96         src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} \
  97                 $1 "dio dax to nondax"
  98
  99         prep_files
 100         $XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_s
 101         $XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_d
 102         src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
 103                 $1 "buffered dax to nondax"
 104 }
 105
 106 t_both_nondax()
 107 {
 108         prep_files
 109         $XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_{s,d}
 110         src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} \
 111                 $1 "dio both nondax"
 112
 113         prep_files
 114         $XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_{s,d}
 115         src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
 116                 $1 "buffered both nondax"
 117 }
 118
 119 # $1 mmap read/write size
 120 t_dax_flag_mmap_dio()
 121 {
 122         t_both_dax $1
 123         t_dax_to_nondax $1
 124         t_nondax_to_dax $1
 125         t_both_nondax $1
 126 }
 127
 128 do_tests()
 129 {
 130         # less than page size
 131         t_dax_flag_mmap_dio 1024
 132         # page size
 133         t_dax_flag_mmap_dio `src/feature -s`
 134         # bigger sizes, for PMD faults
 135         t_dax_flag_mmap_dio $((16 * 1024 * 1024))
 136         t_dax_flag_mmap_dio $((64 * 1024 * 1024))
 137 }
 138
 139 # make xfs 2Mb aligned for PMD fault testing
 140 _scratch_mkfs "-d su=2m,sw=1" > /dev/null 2>&1
 141
 142 # mount with dax option
 143 _scratch_mount "-o dax"
 144
 145 tsize=$((128 * 1024 * 1024))
 146
 147 do_tests
 148 _scratch_unmount
 149
 150 # mount again without dax option
 151 export MOUNT_OPTIONS=""
 152 _scratch_mount
 153 do_tests
 154
 155 # success, all done
 156 echo "Silence is golden"
 157 status=0
 158 exit