etc/systemd/system/zfs-volume-wait.service.in

   1 [Unit]
   2 Description=Wait for ZFS Volume (zvol) links in /dev
   3 DefaultDependencies=no
   4 After=systemd-udev-settle.service
   5 After=zfs-import.target
   6 ConditionPathIsDirectory=/sys/module/zfs
   7
   8 [Service]
   9 Type=oneshot
  10 RemainAfterExit=yes
  11 EnvironmentFile=-@initconfdir@/zfs
  12 ExecStart=@bindir@/zvol_wait
  13
  14 [Install]
  15 WantedBy=zfs-volumes.target