freebsd-dev/libexec/rc/rc.d/zvol
Bjoern A. Zeeb 0696600c41 Move the rc framework out of sbin/init into libexec/rc.
The reasons for this are forward looking to pkgbase:
 * /sbin/init is a special binary; try not to replace it with
   every package update because an rc script was touched.
   (a follow-up commit will make init its own package)
 * having rc in its own place will allow more easy replacement
   of the rc framework with alternatives, such as openrc.

Discussed with:		brd (during BSDCam), kmoore
Requested by:		cem, bz
PR:			231522
Approved by:		re (gjb)
2018-10-17 16:49:11 +00:00

48 lines
754 B
Bash
Executable File

#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: zvol
# REQUIRE: hostid
# BEFORE: dumpon
# KEYWORD: nojail
. /etc/rc.subr
name="zvol"
desc="Activate swap on ZVOLs"
rcvar="zfs_enable"
start_cmd="zvol_start"
stop_cmd="zvol_stop"
required_modules="zfs"
zvol_start()
{
# Enable swap on ZVOLs with property org.freebsd:swap=on.
zfs list -H -o org.freebsd:swap,name -t volume |
while read state name; do
case "${state}" in
([oO][nN])
swapon /dev/zvol/${name}
;;
esac
done
}
zvol_stop()
{
# Disable swap on ZVOLs with property org.freebsd:swap=on.
zfs list -H -o org.freebsd:swap,name -t volume |
while read state name; do
case "${state}" in
([oO][nN])
swapoff /dev/zvol/${name}
;;
esac
done
}
load_rc_config $name
run_rc_command "$1"