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