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 }
  30
  31 # get standard environment, filters and checks
  32 . ./common/rc
  33 . ./common/filter
  34 . ./common/filter.btrfs
  35
  36 # remove previous $seqres.full before test
  37 rm -f $seqres.full
  38
  39 # real QA test starts here
  40
  41 # Modify as appropriate.
  42 _supported_fs btrfs
  43 _require_command "$BTRFS_TUNE_PROG" btrfstune
  44 _require_scratch_dev_pool 3
  45 _require_btrfs_forget_or_module_loadable
  46
  47 _scratch_dev_pool_get 3
  48
  49 dev_seed=$(echo $SCRATCH_DEV_POOL | awk '{print $1}')
  50 dev_sprout=$(echo $SCRATCH_DEV_POOL | awk '{print $2}')
  51 dev_replace_tgt=$(echo $SCRATCH_DEV_POOL | awk '{print $3}')
  52
  53 create_seed()
  54 {
  55         _mkfs_dev $dev_seed
  56         run_check _mount $dev_seed $SCRATCH_MNT
  57         $XFS_IO_PROG -f -d -c "pwrite -S 0xab 0 4M" $SCRATCH_MNT/foobar >\
  58                 /dev/null
  59         echo -- golden --
  60         od -x $SCRATCH_MNT/foobar
  61         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  62         _scratch_unmount
  63         $BTRFS_TUNE_PROG -S 1 $dev_seed
  64         run_check _mount $dev_seed $SCRATCH_MNT
  65 }
  66
  67 add_sprout()
  68 {
  69         _run_btrfs_util_prog device add -f $dev_sprout $SCRATCH_MNT
  70         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  71         _mount -o remount,rw $dev_sprout $SCRATCH_MNT
  72         $XFS_IO_PROG -f -c "pwrite -S 0xcd 0 4M" $SCRATCH_MNT/foobar2 >\
  73                 /dev/null
  74 }
  75
  76 replace_sprout()
  77 {
  78         _run_btrfs_util_prog replace start -fB $dev_sprout $dev_replace_tgt $SCRATCH_MNT
  79         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  80         _scratch_unmount
  81         _btrfs_forget_or_module_reload
  82         run_check _mount -o device=$dev_seed $dev_replace_tgt $SCRATCH_MNT
  83         echo -- sprout --
  84         od -x $SCRATCH_MNT/foobar
  85         od -x $SCRATCH_MNT/foobar2
  86         _scratch_unmount
  87
  88 }
  89
  90 seed_is_mountable()
  91 {
  92         _btrfs_forget_or_module_reload
  93         run_check _mount $dev_seed $SCRATCH_MNT
  94         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  95         _scratch_unmount
  96 }
  97
  98 create_seed
  99 add_sprout
 100 replace_sprout
 101
 102 seed_is_mountable
 103
 104 _scratch_dev_pool_put
 105
 106 status=0
 107 exit