Isso é exatamente o que faz:
/dev/cgroup# mkdir parent
/dev/cgroup# cat parent/cpuset.cpus
0
/dev/cgroup# echo 1-2 > parent/cpuset.cpus
/dev/cgroup# cat parent/cpuset.cpus
1-2
/dev/cgroup# echo 1 > parent.clone_children
/dev/cgroup# mkdir parent/child
/dev/cgroup# cat parent/child/cpuset.cpus
1-2