tests/btrfs/315

#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2024 Oracle. All Rights Reserved.
#
# FS QA Test 315
#
# Verify if the seed and device add to a tempfsid filesystem fails
# and balance devices is successful.
#
. ./common/preamble
_begin_fstest auto quick volume seed balance tempfsid

_cleanup()
{
	cd /
	$UMOUNT_PROG $tempfsid_mnt 2>/dev/null
	rm -r -f $tmp.*
	rm -r -f $tempfsid_mnt
}

. ./common/filter.btrfs

_require_scratch_dev_pool 3
_require_btrfs_fs_feature temp_fsid

_scratch_dev_pool_get 3

# mount point for the tempfsid device
tempfsid_mnt=$TEST_DIR/$seq/tempfsid_mnt

_filter_mount_error()
{
	# There are two different errors that occur at the output when
	# mounting fails; as shown below, pick out the common part. And,
	# remove the dmesg line.

	# mount: <mnt-point>: mount(2) system call failed: File exists.

	# mount: <mnt-point>: fsconfig system call failed: File exists.
	# dmesg(1) may have more information after failed mount system call.

	grep -v dmesg | _filter_test_dir | sed -e "s/mount(2)\|fsconfig//g"
}

seed_device_must_fail()
{
	echo ---- $FUNCNAME ----

	mkfs_clone ${SCRATCH_DEV} ${SCRATCH_DEV_NAME[1]}

	$BTRFS_TUNE_PROG -S 1 ${SCRATCH_DEV}
	$BTRFS_TUNE_PROG -S 1 ${SCRATCH_DEV_NAME[1]}

	_scratch_mount 2>&1 | _filter_scratch
	_mount ${SCRATCH_DEV_NAME[1]} ${tempfsid_mnt} 2>&1 | _filter_mount_error
}

device_add_must_fail()
{
	echo ---- $FUNCNAME ----

	mkfs_clone ${SCRATCH_DEV} ${SCRATCH_DEV_NAME[1]}
	_scratch_mount
	_mount ${SCRATCH_DEV_NAME[1]} ${tempfsid_mnt}

	$XFS_IO_PROG -fc 'pwrite -S 0x61 0 9000' $SCRATCH_MNT/foo | \
							_filter_xfs_io

$BTRFS_UTIL_PROG device add -f ${SCRATCH_DEV_NAME[2]} ${tempfsid_mnt} 2>&1 | \
		grep -v "Performing full device TRIM" | _filter_scratch_pool

	echo Balance must be successful
	_run_btrfs_balance_start ${tempfsid_mnt}
}

mkdir -p $tempfsid_mnt

seed_device_must_fail

_scratch_unmount
_cleanup
mkdir -p $tempfsid_mnt

device_add_must_fail

_scratch_dev_pool_put

# success, all done
status=0
exit