zvol revision 301612 
1#!/bin/sh
2#
3# $FreeBSD: stable/10/etc/rc.d/zvol 301612 2016-06-08 13:32:00Z ngie $
4#
5
6# PROVIDE: zvol
7# REQUIRE: hostid
8# BEFORE: dumpon
9# KEYWORD: nojail
10
11. /etc/rc.subr
12
13name="zvol"
14rcvar="zfs_enable"
15start_cmd="zvol_start"
16stop_cmd="zvol_stop"
17required_modules="zfs"
18
19zvol_start()
20{
21	# Enable swap on ZVOLs with property org.freebsd:swap=on.
22	zfs list -H -o org.freebsd:swap,name -t volume | \
23	while read state name; do
24		case "${state}" in
25		[oO][nN])
26			swapon /dev/zvol/${name}
27			;;
28		esac
29	done
30}
31
32zvol_stop()
33{
34	# Disable swap on ZVOLs with property org.freebsd:swap=on.
35	zfs list -H -o org.freebsd:swap,name -t volume | \
36	while read state name; do
37		case "${state}" in
38		[oO][nN])
39			swapoff /dev/zvol/${name}
40			;;
41		esac
42	done
43}
44
45load_rc_config $name
46run_rc_command "$1"
47