syscalls work fine here as well. you need to specify parent_id and new_id for creation.3. I also don't understand why normal binary interface like system call
is not used.
We have set_uid, sys_setrlimit and it works pretty good, does it?
If there are no hierarchies, a syscall interface is fine since the namespace
for the task-group is flat (so one can export to userspace either a number or a
string as a handle to that task-group for operations like create, delete,
set limit, get usage, etc)
A filesystem based interface is useful when you have hierarchies (as resourcebut it is not much convinient for applications then.
groups and cpusets do) since it naturally defines a convenient to use