common/dmerror

   1 ##/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (c) 2015 Oracle.  All Rights Reserved.
   4 #
   5 # common functions for setting up and tearing down a dmerror device
   6
   7 echo $MOUNT_OPTIONS | grep -q dax
   8 if [ $? -eq 0 ]; then
   9         _notrun "Cannot run tests with DAX on dmerror devices"
  10 fi
  11
  12 _dmerror_setup()
  13 {
  14         local dm_backing_dev=$SCRATCH_DEV
  15
  16         local blk_dev_size=`blockdev --getsz $dm_backing_dev`
  17
  18         DMERROR_DEV='/dev/mapper/error-test'
  19
  20         DMLINEAR_TABLE="0 $blk_dev_size linear $dm_backing_dev 0"
  21
  22         DMERROR_TABLE="0 $blk_dev_size error $dm_backing_dev 0"
  23 }
  24
  25 _dmerror_init()
  26 {
  27         _dmerror_setup
  28         _dmsetup_remove error-test
  29         _dmsetup_create error-test --table "$DMLINEAR_TABLE" || \
  30                 _fatal "failed to create dm linear device"
  31 }
  32
  33 _dmerror_mount()
  34 {
  35         _scratch_options mount
  36         $MOUNT_PROG -t $FSTYP `_common_dev_mount_options $*` $SCRATCH_OPTIONS \
  37                 $DMERROR_DEV $SCRATCH_MNT
  38 }
  39
  40 _dmerror_unmount()
  41 {
  42         umount $SCRATCH_MNT
  43 }
  44
  45 _dmerror_cleanup()
  46 {
  47         $UMOUNT_PROG $SCRATCH_MNT > /dev/null 2>&1
  48         _dmsetup_remove error-test
  49 }
  50
  51 _dmerror_load_error_table()
  52 {
  53         suspend_opt="--nolockfs"
  54
  55         if [ "$1" = "lockfs" ]; then
  56                 suspend_opt=""
  57         elif [ -n "$*" ]; then
  58                 suspend_opt="$*"
  59         fi
  60
  61         $DMSETUP_PROG suspend $suspend_opt error-test
  62         [ $? -ne 0 ] && _fail  "dmsetup suspend failed"
  63
  64         $DMSETUP_PROG load error-test --table "$DMERROR_TABLE"
  65         [ $? -ne 0 ] && _fail "dmsetup failed to load error table"
  66
  67         $DMSETUP_PROG resume error-test
  68         [ $? -ne 0 ] && _fail  "dmsetup resume failed"
  69 }
  70
  71 _dmerror_load_working_table()
  72 {
  73         suspend_opt="--nolockfs"
  74
  75         if [ "$1" = "lockfs" ]; then
  76                 suspend_opt=""
  77         elif [ -n "$*" ]; then
  78                 suspend_opt="$*"
  79         fi
  80
  81         $DMSETUP_PROG suspend $suspend_opt error-test
  82         [ $? -ne 0 ] && _fail  "dmsetup suspend failed"
  83
  84         $DMSETUP_PROG load error-test --table "$DMLINEAR_TABLE"
  85         [ $? -ne 0 ] && _fail "dmsetup failed to load error table"
  86
  87         $DMSETUP_PROG resume error-test
  88         [ $? -ne 0 ] && _fail  "dmsetup resume failed"
  89 }