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 _supported_os Linux
  33 _require_test
  34 _require_scratch_dax
  35 _require_test_program "feature"
  36 _require_test_program "t_mmap_dio"
  37 _require_xfs_io_command "falloc"
  38
  39 prep_files()
  40 {
  41         rm -f $SCRATCH_MNT/tf_{s,d}
  42         rm -f $TEST_DIR/tf_{s,d}
  43
  44         $XFS_IO_PROG -f -c "falloc 0 $tsize" \
  45                 $SCRATCH_MNT/tf_{s,d} >> $seqres.full 2>&1
  46         $XFS_IO_PROG -f -c "falloc 0 $tsize" \
  47                 $TEST_DIR/tf_{s,d} >> $seqres.full 2>&1
  48 }
  49
  50 t_both_dax()
  51 {
  52         prep_files
  53         # with O_DIRECT first
  54         src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} $1 "dio both dax"
  55
  56         prep_files
  57         # again with buffered IO
  58         src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \
  59                 $1 "buffered both dax"
  60 }
  61
  62 t_nondax_to_dax()
  63 {
  64         prep_files
  65         src/t_mmap_dio $TEST_DIR/tf_s \
  66                 $SCRATCH_MNT/tf_d $1 "dio nondax to dax"
  67
  68         prep_files
  69         src/t_mmap_dio -b $TEST_DIR/tf_s \
  70                 $SCRATCH_MNT/tf_d $1 "buffered nondax to dax"
  71 }
  72
  73 t_dax_to_nondax()
  74 {
  75         prep_files
  76         src/t_mmap_dio $SCRATCH_MNT/tf_s \
  77                 $TEST_DIR/tf_d $1 "dio dax to nondax"
  78
  79         prep_files
  80         src/t_mmap_dio -b $SCRATCH_MNT/tf_s \
  81                 $TEST_DIR/tf_d $1 "buffered dax to nondax"
  82 }
  83
  84 t_both_nondax()
  85 {
  86         prep_files
  87         src/t_mmap_dio $TEST_DIR/tf_{s,d} $1 "dio both nondax"
  88
  89         prep_files
  90         src/t_mmap_dio -b $TEST_DIR/tf_{s,d} \
  91                 $1 "buffered both nondax"
  92 }
  93
  94 # $1 mmap read/write size
  95 t_mmap_dio_dax()
  96 {
  97         t_both_dax $1
  98         t_dax_to_nondax $1
  99         t_nondax_to_dax $1
 100         t_both_nondax $1
 101 }
 102
 103 do_tests()
 104 {
 105         # less than page size
 106         t_mmap_dio_dax 1024
 107         # page size
 108         t_mmap_dio_dax `src/feature -s`
 109         # bigger sizes, for PMD faults
 110         t_mmap_dio_dax $((16 * 1024 * 1024))
 111         t_mmap_dio_dax $((64 * 1024 * 1024))
 112 }
 113
 114 # make fs 2Mb aligned for PMD fault testing
 115 mkfs_opts=""
 116 if [ "$FSTYP" == "ext4" ]; then
 117         mkfs_opts="-E stride=512,stripe_width=1"
 118 elif [ "$FSTYP" == "xfs" ]; then
 119         mkfs_opts="-d su=2m,sw=1"
 120 fi
 121 _scratch_mkfs "$mkfs_opts" > /dev/null 2>&1
 122
 123 # mount SCRATCH_DEV with dax option, TEST_DEV not
 124 export MOUNT_OPTIONS=""
 125 export TEST_FS_MOUNT_OPTS=""
 126 _test_cycle_mount
 127 _fs_options $TEST_DEV | grep -qw "dax" && \
 128         _notrun "we need $TEST_DEV mount without dax"
 129 _scratch_mount "-o dax"
 130
 131 tsize=$((128 * 1024 * 1024))
 132
 133 do_tests
 134
 135 # success, all done
 136 echo "Silence is golden"
 137 status=0
 138 exit