This patch changes KillMode in above listed service files from "none"
to "mixed", to follow systemd recommendation and avoid potential
unnecessary issue.
What about mdmonitor.service? Should we add it there too? Now it is not
defined.
Cc: Jes Sorensen <redacted>
Not sure if it a problem but Jes uses: jes@trained-monkey.org for
communication with linux-raid.
Thanks,
Mariusz