011

#!/bin/bash
# SPDX-License-Identifier: GPL-3.0+
# Copyright (C) 2025 Google LLC

. tests/scsi/rc
. common/null_blk
. common/scsi_debug

DESCRIPTION="test data lifetime propagation"
QUICK=1

requires() {
	_have_fio
	_have_driver f2fs
	# See also commit 7643f3fe2772 ("f2fs: assign the write hint per stream
	# by default"; v6.10).
	_have_kver 6 10
	_have_program mkfs.f2fs
	_have_scsi_debug_group_number_stats
	_page_size_equals 4096
}

run_test() {
	set -e

	local scsi_debug_params=(
		delay=0
		dev_size_mb=1024
		sector_size=4096
	)
	_configure_scsi_debug "${scsi_debug_params[@]}"
	local dev="/dev/${SCSI_DEBUG_DEVICES[0]}" fail
	ls -ld "${dev}" >>"${FULL}"
	mkfs.f2fs "${dev}" >>"${FULL}" 2>&1
	mkdir -p "${mount_dir}"
	mount -t f2fs "${dev}" "${mount_dir}"
	local fio_args=(
		--size=1M
		--directory="${mount_dir}"
		--time_based
		--runtime=10
	)

	set +e

	_run_fio_verify_io "${fio_args[@]}" >>"${FULL}" 2>&1
}

test() {
	echo "Running ${TEST_NAME}"

	# A global variable because it is also used in run_test().
	mount_dir="$TMPDIR/mnt"

	(
		run_test
	)
	# shellcheck disable=SC2181
	(($? != 0)) && fail=true

	umount "${mount_dir}" >>"${FULL}" 2>&1
	head -n 999 /sys/bus/pseudo/drivers/scsi_debug/group_number_stats >> "${FULL}"
	while read -r group count; do
		if [ "$count" -gt 0 ]; then echo "$group"; fi
	done < /sys/bus/pseudo/drivers/scsi_debug/group_number_stats
	_exit_scsi_debug

	if [ -z "$fail" ]; then
		echo "Test complete"
	else
		echo "Test failed"
		return 1
	fi
}