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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2018 Oracle. All Rights Reserved.
#
# FS QA Test 163
#
# Test case to verify that a sprouted device can be replaced
# Create a seed device
# Create a sprout device
# Remount RW
# Run device replace on the sprout device
#
# Depends on the kernel patch
# c6a5d954950c btrfs: fail replace of seed device
. ./common/preamble
_begin_fstest auto quick volume seed remount
# Override the default cleanup function.
_cleanup()
{
cd /
rm -f $tmp.*
_btrfs_rescan_devices
}
. ./common/filter
. ./common/filter.btrfs
_supported_fs btrfs
_require_command "$BTRFS_TUNE_PROG" btrfstune
_require_scratch_dev_pool 3
_require_btrfs_forget_or_module_loadable
_scratch_dev_pool_get 3
dev_seed=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $1}')
dev_sprout=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $2}')
dev_replace_tgt=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{print $3}')
create_seed()
{
_mkfs_dev $dev_seed
run_check _mount $dev_seed $SCRATCH_MNT
$XFS_IO_PROG -f -d -c "pwrite -S 0xab 0 4M" $SCRATCH_MNT/foobar >\
/dev/null
echo -- golden --
od -x $SCRATCH_MNT/foobar
_btrfs filesystem show -m $SCRATCH_MNT
_scratch_unmount
$BTRFS_TUNE_PROG -S 1 $dev_seed
run_check _mount $dev_seed $SCRATCH_MNT
}
add_sprout()
{
_btrfs device add -f $dev_sprout $SCRATCH_MNT >>\
$seqres.full
_btrfs filesystem show -m $SCRATCH_MNT
_mount -o remount,rw $dev_sprout $SCRATCH_MNT
$XFS_IO_PROG -f -c "pwrite -S 0xcd 0 4M" $SCRATCH_MNT/foobar2 >\
/dev/null
}
replace_sprout()
{
_btrfs replace start -fB $dev_sprout $dev_replace_tgt $SCRATCH_MNT
_btrfs filesystem show -m $SCRATCH_MNT
_scratch_unmount
_btrfs_forget_or_module_reload
run_check _mount -o device=$dev_seed $dev_replace_tgt $SCRATCH_MNT
echo -- sprout --
od -x $SCRATCH_MNT/foobar
od -x $SCRATCH_MNT/foobar2
_scratch_unmount
}
seed_is_mountable()
{
_btrfs_forget_or_module_reload
run_check _mount $dev_seed $SCRATCH_MNT
_btrfs filesystem show -m $SCRATCH_MNT
_scratch_unmount
}
create_seed
add_sprout
replace_sprout
seed_is_mountable
_scratch_dev_pool_put
_btrfs_rescan_devices
status=0
exit
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