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 . ./common/preamble
  17 _begin_fstest auto quick volume seed
  18
  19 # Override the default cleanup function.
  20 _cleanup()
  21 {
  22         cd /
  23         rm -f $tmp.*
  24         _btrfs_rescan_devices
  25 }
  26
  27 # Import common functions.
  28 . ./common/filter
  29 . ./common/filter.btrfs
  30 . ./common/module
  31
  32 # real QA test starts here
  33
  34 # Modify as appropriate.
  35 _supported_fs btrfs
  36 _require_command "$BTRFS_TUNE_PROG" btrfstune
  37 _require_scratch_dev_pool 3
  38 _require_btrfs_forget_or_module_loadable
  39
  40 _scratch_dev_pool_get 3
  41
  42 dev_seed=$(echo $SCRATCH_DEV_POOL | awk '{print $1}')
  43 dev_sprout=$(echo $SCRATCH_DEV_POOL | awk '{print $2}')
  44 dev_replace_tgt=$(echo $SCRATCH_DEV_POOL | awk '{print $3}')
  45
  46 create_seed()
  47 {
  48         _mkfs_dev $dev_seed
  49         run_check _mount $dev_seed $SCRATCH_MNT
  50         $XFS_IO_PROG -f -d -c "pwrite -S 0xab 0 4M" $SCRATCH_MNT/foobar >\
  51                 /dev/null
  52         echo -- golden --
  53         od -x $SCRATCH_MNT/foobar
  54         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  55         _scratch_unmount
  56         $BTRFS_TUNE_PROG -S 1 $dev_seed
  57         run_check _mount $dev_seed $SCRATCH_MNT
  58 }
  59
  60 add_sprout()
  61 {
  62         _run_btrfs_util_prog device add -f $dev_sprout $SCRATCH_MNT
  63         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  64         _mount -o remount,rw $dev_sprout $SCRATCH_MNT
  65         $XFS_IO_PROG -f -c "pwrite -S 0xcd 0 4M" $SCRATCH_MNT/foobar2 >\
  66                 /dev/null
  67 }
  68
  69 replace_sprout()
  70 {
  71         _run_btrfs_util_prog replace start -fB $dev_sprout $dev_replace_tgt $SCRATCH_MNT
  72         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  73         _scratch_unmount
  74         _btrfs_forget_or_module_reload
  75         run_check _mount -o device=$dev_seed $dev_replace_tgt $SCRATCH_MNT
  76         echo -- sprout --
  77         od -x $SCRATCH_MNT/foobar
  78         od -x $SCRATCH_MNT/foobar2
  79         _scratch_unmount
  80
  81 }
  82
  83 seed_is_mountable()
  84 {
  85         _btrfs_forget_or_module_reload
  86         run_check _mount $dev_seed $SCRATCH_MNT
  87         _run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
  88         _scratch_unmount
  89 }
  90
  91 create_seed
  92 add_sprout
  93 replace_sprout
  94
  95 seed_is_mountable
  96
  97 _scratch_dev_pool_put
  98 _btrfs_rescan_devices
  99
 100 status=0
 101 exit