gentoo-overlay/sys-apps/irqbalance/files/irqbalance.init.4

#!/sbin/openrc-run
# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License, v2 or later

depend() {
	need localmount
	after bootmisc
}

command="/usr/sbin/irqbalance"
command_args="${IRQBALANCE_OPTS}"

start_pre() {
	if grep -q MSI /proc/interrupts 2>/dev/null && \
	test -z "$(find /sys/devices -type d -name msi_irqs 2>/dev/null)"; then
		eerror "MSI interrupts found in /proc/interrupts but none found in sysfs."
		eerror "You need to update your kernel."
		return 1
	fi

	checkpath -q -d /run/${SVCNAME}
}