tests/btrfs/163

   1 #! /bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 # Copyright (c) 2018 Oracle.  All Rights Reserved.
   4 #
   5 # FS QA Test 163
   6 #
   7 # Test case to verify that a sprouted device can be replaced
   8 #  Create a seed device
   9 #  Create a sprout device
  10 #  Remount RW
  11 #  Run device replace on the sprout device
  12 #
  13 # Depends on the kernel patch
  14 #   c6a5d954950c btrfs: fail replace of seed device
  15
  16 seq=`basename $0`
  17 seqres=$RESULT_DIR/$seq
  18 echo "QA output created by $seq"
  19
  20 here=`pwd`
  21 tmp=/tmp/$$
  22 status=1        # failure is the default!
  23 trap "_cleanup; exit \$status" 0 1 2 3 15
  24
  25 _cleanup()
  26 {
  27         cd /
  28         rm -f $tmp.*
  29         _btrfs_rescan_devices
  30 }
  31
  32 # get standard environment, filters and checks
  33 . ./common/rc
  34 . ./common/filter
  35 . ./common/filter.btrfs
  36
  37 # remove previous $seqres.full before test
  38 rm -f $seqres.full
  39
  40 # real QA test starts here
  41
  42 # Modify as appropriate.
  43 _supported_fs btrfs
  44 _require_command "$BTRFS_TUNE_PROG" btrfstune
  45 _require_scratch_dev_pool 3
  46 _require_btrfs_forget_or_module_loadable
  47
  48 _scratch_dev_pool_get 3
  49
  50 dev_seed=$(echo $SCRATCH_DEV_POOL | awk '{print $1}')
  51 dev_sprout=$(echo $SCRATCH_DEV_POOL | awk '{print $2}')
  52 dev_replace_tgt=$(echo $SCRATCH_DEV_POOL | awk '{print $3}')
  53
  54 create_seed()
  55 {
  56         _mkfs_dev $dev_seed
  57         run_check _mount $dev_seed $SCRATCH_MNT
  58         $XFS_IO_PROG -f -d -c "pwrite -S 0xab 0 4M" $SCRATCH_MNT/foobar >\
  59                 /dev/null
  60         echo -- golden --
  61         od -x $SCRATCH_MNT/foobar
  62         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  63         _scratch_unmount
  64         $BTRFS_TUNE_PROG -S 1 $dev_seed
  65         run_check _mount $dev_seed $SCRATCH_MNT
  66 }
  67
  68 add_sprout()
  69 {
  70         _run_btrfs_util_prog device add -f $dev_sprout $SCRATCH_MNT
  71         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  72         _mount -o remount,rw $dev_sprout $SCRATCH_MNT
  73         $XFS_IO_PROG -f -c "pwrite -S 0xcd 0 4M" $SCRATCH_MNT/foobar2 >\
  74                 /dev/null
  75 }
  76
  77 replace_sprout()
  78 {
  79         _run_btrfs_util_prog replace start -fB $dev_sprout $dev_replace_tgt $SCRATCH_MNT
  80         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  81         _scratch_unmount
  82         _btrfs_forget_or_module_reload
  83         run_check _mount -o device=$dev_seed $dev_replace_tgt $SCRATCH_MNT
  84         echo -- sprout --
  85         od -x $SCRATCH_MNT/foobar
  86         od -x $SCRATCH_MNT/foobar2
  87         _scratch_unmount
  88
  89 }
  90
  91 seed_is_mountable()
  92 {
  93         _btrfs_forget_or_module_reload
  94         run_check _mount $dev_seed $SCRATCH_MNT
  95         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  96         _scratch_unmount
  97 }
  98
  99 create_seed
 100 add_sprout
 101 replace_sprout
 102
 103 seed_is_mountable
 104
 105 _scratch_dev_pool_put
 106 _btrfs_rescan_devices
 107
 108 status=0
 109 exit