FM / user.slice

/sys/fs/cgroup/systemd/user.slice

Name	Size	Mode	Actions
user-0.slice/	-	0755	rm
user-1000.slice/	-	0755	rm
cgroup.clone_children	0	0644	edit dl rm
cgroup.procs	0	0644	edit dl rm
notify_on_release	0	0644	edit dl rm
tasks	0	0644	edit dl rm

Edit: /sys/fs/cgroup/systemd/user.slice/cgroup.procs (0B)