sbin/init/rc.d/zvol

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