tests/xfs/260

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (c) 2017 Red Hat Inc.  All Rights Reserved.
   4 #
   5 # FS QA Test 260
   6 #
   7 # Test per-inode DAX flag by mmap direct/buffered IO.
   8 #
   9 seq=`basename $0`
  10 seqres=$RESULT_DIR/$seq
  11 echo "QA output created by $seq"
  12
  13 here=`pwd`
  14 tmp=/tmp/$$
  15 status=1        # failure is the default!
  16 trap "_cleanup; exit \$status" 0 1 2 3 15
  17
  18 _cleanup()
  19 {
  20         cd /
  21         rm -f $tmp.*
  22 }
  23
  24 # get standard environment, filters and checks
  25 . ./common/rc
  26 . ./common/filter
  27
  28 # remove previous $seqres.full before test
  29 rm -f $seqres.full
  30
  31 _supported_fs xfs
  32 _supported_os Linux
  33 _require_scratch_dax
  34 _require_test_program "feature"
  35 _require_test_program "t_mmap_dio"
  36 _require_xfs_io_command "chattr" "x"
  37 _require_xfs_io_command "falloc"
  38
  39 prep_files()
  40 {
  41         rm -f $SCRATCH_MNT/tf_{s,d}
  42
  43         $XFS_IO_PROG -f -c "falloc 0 $tsize" \
  44                 $SCRATCH_MNT/tf_{s,d} >> $seqres.full 2>&1
  45 }
  46
  47 t_both_dax()
  48 {
  49         prep_files
  50         $XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_{s,d}
  51         # with O_DIRECT first
  52         src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} $1 "dio both dax"
  53
  54         prep_files
  55         $XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_{s,d}
  56         # again with buffered IO
  57         src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
  58                 $1 "buffered both dax"
  59 }
  60
  61 t_nondax_to_dax()
  62 {
  63         prep_files
  64         $XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_s
  65         $XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_d
  66         src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} \
  67                 $1 "dio nondax to dax"
  68
  69         prep_files
  70         $XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_s
  71         $XFS_IO_PROG -c "chattr +x" $SCRATCH_MNT/tf_d
  72         src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
  73                 $1 "buffered nondax to dax"
  74 }
  75
  76 t_dax_to_nondax()
  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 dax to nondax"
  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 dax to nondax"
  89 }
  90
  91 t_both_nondax()
  92 {
  93         prep_files
  94         $XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_{s,d}
  95         src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} \
  96                 $1 "dio both nondax"
  97
  98         prep_files
  99         $XFS_IO_PROG -c "chattr -x" $SCRATCH_MNT/tf_{s,d}
 100         src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
 101                 $1 "buffered both nondax"
 102 }
 103
 104 # $1 mmap read/write size
 105 t_dax_flag_mmap_dio()
 106 {
 107         t_both_dax $1
 108         t_dax_to_nondax $1
 109         t_nondax_to_dax $1
 110         t_both_nondax $1
 111 }
 112
 113 do_tests()
 114 {
 115         # less than page size
 116         t_dax_flag_mmap_dio 1024
 117         # page size
 118         t_dax_flag_mmap_dio `src/feature -s`
 119         # bigger sizes, for PMD faults
 120         t_dax_flag_mmap_dio $((16 * 1024 * 1024))
 121         t_dax_flag_mmap_dio $((64 * 1024 * 1024))
 122 }
 123
 124 # make xfs 2Mb aligned for PMD fault testing
 125 _scratch_mkfs "-d su=2m,sw=1" > /dev/null 2>&1
 126
 127 # mount with dax option
 128 _scratch_mount "-o dax"
 129
 130 tsize=$((128 * 1024 * 1024))
 131
 132 do_tests
 133 _scratch_unmount
 134
 135 # mount again without dax option
 136 export MOUNT_OPTIONS=""
 137 _scratch_mount
 138 do_tests
 139
 140 # success, all done
 141 echo "Silence is golden"
 142 status=0
 143 exit