[systemd-devel] systemd release agent

[Kevin Wilson]

Hello,
On Fedora 18, running:
mount | grep release
gives:
cgroup on /sys/fs/cgroup/systemd type cgroup
(rw,nosuid,nodev,noexec,relatime,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)

I know and have tried cgroup release_agent;

I also noticed that  notify_on_release is enabled in systemd cgroups:
cat  /sys/fs/cgroup/systemd/notify_on_release
gives 1
(also in the children, user and system cgroups)

what does /usr/lib/systemd/systemd-cgroups-agent do ? what it is for ?
What does it do when it is invoked ?

regars,
Kevin