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 seed device can be replaced
   8 #  Create a seed device
   9 #  Create a sprout device
  10 #  Remount RW
  11 #  Run device replace on the seed device
  12 seq=`basename $0`
  13 seqres=$RESULT_DIR/$seq
  14 echo "QA output created by $seq"
  15
  16 here=`pwd`
  17 tmp=/tmp/$$
  18 status=1        # failure is the default!
  19 trap "_cleanup; exit \$status" 0 1 2 3 15
  20
  21 _cleanup()
  22 {
  23         cd /
  24         rm -f $tmp.*
  25 }
  26
  27 # get standard environment, filters and checks
  28 . ./common/rc
  29 . ./common/filter
  30 . ./common/filter.btrfs
  31
  32 # remove previous $seqres.full before test
  33 rm -f $seqres.full
  34
  35 # real QA test starts here
  36
  37 # Modify as appropriate.
  38 _supported_fs btrfs
  39 _supported_os Linux
  40 _require_command "$BTRFS_TUNE_PROG" btrfstune
  41 _require_scratch_dev_pool 3
  42
  43 _scratch_dev_pool_get 3
  44
  45 dev_seed=$(echo $SCRATCH_DEV_POOL | awk '{print $1}')
  46 dev_sprout=$(echo $SCRATCH_DEV_POOL | awk '{print $2}')
  47 dev_replace_tgt=$(echo $SCRATCH_DEV_POOL | awk '{print $3}')
  48
  49 create_seed()
  50 {
  51         _mkfs_dev $dev_seed
  52         run_check _mount $dev_seed $SCRATCH_MNT
  53         $XFS_IO_PROG -f -d -c "pwrite -S 0xab 0 4M" $SCRATCH_MNT/foobar >\
  54                 /dev/null
  55         echo -- gloden --
  56         od -x $SCRATCH_MNT/foobar
  57         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  58         _scratch_unmount
  59         $BTRFS_TUNE_PROG -S 1 $dev_seed
  60         run_check _mount $dev_seed $SCRATCH_MNT
  61 }
  62
  63 add_sprout()
  64 {
  65         _run_btrfs_util_prog device add -f $dev_sprout $SCRATCH_MNT
  66         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  67 }
  68
  69 replace_seed()
  70 {
  71         _run_btrfs_util_prog replace start -fB $dev_seed $dev_replace_tgt $SCRATCH_MNT
  72         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  73         _scratch_unmount
  74         run_check _mount $dev_replace_tgt $SCRATCH_MNT
  75         echo -- sprout --
  76         od -x $SCRATCH_MNT/foobar
  77         _scratch_unmount
  78
  79 }
  80
  81 seed_is_mountable()
  82 {
  83         run_check _mount $dev_seed $SCRATCH_MNT
  84         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  85         _scratch_unmount
  86 }
  87
  88 create_seed
  89 add_sprout
  90 replace_seed
  91
  92 seed_is_mountable
  93
  94 _scratch_dev_pool_put
  95
  96 status=0
  97 exit