tests/generic/413

   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 413
   6 #
   7 # mmap direct/buffered io between DAX and non-DAX mountpoints.
   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 generic
  32 _require_test
  33 _require_scratch_dax_mountopt "dax"
  34 _require_test_program "feature"
  35 _require_test_program "t_mmap_dio"
  36 _require_xfs_io_command "falloc"
  37
  38 prep_files()
  39 {
  40         rm -f $SCRATCH_MNT/tf_{s,d}
  41         rm -f $TEST_DIR/tf_{s,d}
  42
  43         $XFS_IO_PROG -f -c "falloc 0 $tsize" \
  44                 $SCRATCH_MNT/tf_{s,d} >> $seqres.full 2>&1
  45         $XFS_IO_PROG -f -c "falloc 0 $tsize" \
  46                 $TEST_DIR/tf_{s,d} >> $seqres.full 2>&1
  47 }
  48
  49 t_both_dax()
  50 {
  51         prep_files
  52         # with O_DIRECT first
  53         $here/src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} $1 "dio both dax"
  54
  55         prep_files
  56         # again with buffered IO
  57         $here/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         $here/src/t_mmap_dio $TEST_DIR/tf_s \
  65                 $SCRATCH_MNT/tf_d $1 "dio nondax to dax"
  66
  67         prep_files
  68         $here/src/t_mmap_dio -b $TEST_DIR/tf_s \
  69                 $SCRATCH_MNT/tf_d $1 "buffered nondax to dax"
  70 }
  71
  72 t_dax_to_nondax()
  73 {
  74         prep_files
  75         $here/src/t_mmap_dio $SCRATCH_MNT/tf_s \
  76                 $TEST_DIR/tf_d $1 "dio dax to nondax"
  77
  78         prep_files
  79         $here/src/t_mmap_dio -b $SCRATCH_MNT/tf_s \
  80                 $TEST_DIR/tf_d $1 "buffered dax to nondax"
  81 }
  82
  83 t_both_nondax()
  84 {
  85         prep_files
  86         $here/src/t_mmap_dio $TEST_DIR/tf_{s,d} $1 "dio both nondax"
  87
  88         prep_files
  89         $here/src/t_mmap_dio -b $TEST_DIR/tf_{s,d} \
  90                 $1 "buffered both nondax"
  91 }
  92
  93 # $1 mmap read/write size
  94 t_mmap_dio_dax()
  95 {
  96         t_both_dax $1
  97         t_dax_to_nondax $1
  98         t_nondax_to_dax $1
  99         t_both_nondax $1
 100 }
 101
 102 do_tests()
 103 {
 104         # less than page size
 105         t_mmap_dio_dax 1024
 106         # page size
 107         t_mmap_dio_dax `$here/src/feature -s`
 108         # bigger sizes, for PMD faults
 109         t_mmap_dio_dax $((16 * 1024 * 1024))
 110         t_mmap_dio_dax $((64 * 1024 * 1024))
 111 }
 112
 113 # make fs aligned for PMD fault testing
 114 _scratch_mkfs_geom $(_get_hugepagesize) 1 >> $seqres.full 2>&1
 115
 116 # mount SCRATCH_DEV with dax option, TEST_DEV not
 117 export MOUNT_OPTIONS=""
 118 export TEST_FS_MOUNT_OPTS=""
 119 _test_cycle_mount
 120 _fs_options $TEST_DEV | grep -qw "dax" && \
 121         _notrun "we need $TEST_DEV mount without dax"
 122 _scratch_mount "-o dax"
 123
 124 tsize=$((128 * 1024 * 1024))
 125
 126 do_tests
 127
 128 # success, all done
 129 echo "Silence is golden"
 130 status=0
 131 exit