freebsd-dev/etc/rc.d/zvol
Lars Engels 6c1a5e837d - Add descriptions to most of the rc scripts. Those are mostly taken from their
daemon's manpage and probably improved.
- Consistently use "filesystem" not "file system".

Approved by:	bapt, brueffer
Differential Revision:	D452
2016-04-23 16:10:54 +00:00

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#!/bin/sh
#
# $FreeBSD$
#
# PROVIDE: zvol
# REQUIRE: hostid
# 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"