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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
. "$(cd "$(dirname "$0")" && pwd)"/test_common.sh
TID="generic_01"
ERR_CODE=0
if ! _have_program bpftrace; then
exit "$UBLK_SKIP_CODE"
fi
if ! _have_program fio; then
exit "$UBLK_SKIP_CODE"
fi
_prep_test "null" "sequential io order"
dev_id=$(_add_ublk_dev -t null)
_check_add_dev $TID $?
dev_t=$(_get_disk_dev_t "$dev_id")
bpftrace trace/seq_io.bt "$dev_t" "W" 1 > "$UBLK_TMP" 2>&1 &
btrace_pid=$!
sleep 2
if ! kill -0 "$btrace_pid" > /dev/null 2>&1; then
_cleanup_test "null"
exit "$UBLK_SKIP_CODE"
fi
# run fio over this ublk disk
fio --name=write_seq \
--filename=/dev/ublkb"${dev_id}" \
--ioengine=libaio --iodepth=16 \
--rw=write \
--size=512M \
--direct=1 \
--bs=4k > /dev/null 2>&1
ERR_CODE=$?
kill "$btrace_pid"
wait
if grep -q "io_out_of_order" "$UBLK_TMP"; then
cat "$UBLK_TMP"
ERR_CODE=255
fi
_cleanup_test "null"
_show_result $TID $ERR_CODE
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