race and lock dependency with other cgroup subsystems.
example)
- # mount -t cgroup none /cgroup -t cpuset,memory,cpu,devices
+ # mount -t cgroup none /cgroup -o cpuset,memory,cpu,devices
and do task move, mkdir, rmdir etc...under this.
For example, test like following is good.
(Shell-A)
- # mount -t cgroup none /cgroup -t memory
+ # mount -t cgroup none /cgroup -o memory
# mkdir /cgroup/test
# echo 40M > /cgroup/test/memory.limit_in_bytes
# echo 0 > /cgroup/test/tasks