On 1/4/16 12:23 PM, Tejun Heo wrote:

I don't have an answer for that but cgroup isn't a place to put such
stray configurations either.  Please figure out where the
configuration belongs first.  What you're proposing really isn't a
resource controller.  There's no resource being distributed
hierarchically.  It's just dumping configuration which hasn't found
its proper place into cgroup.

cgroups have very nice properties that I want to leverage such as 
parent-child inheritance and easy tracking which subsystem instance a 
task belongs. This provides a great kernel foundation for building easy 
to use management tools.

The documentation for cgroups does not restrict a controller to physical 
resources but rather "it may be anything that wants to act on a group of 
processes." That is exactly what I am doing here - I have a network 
config that is applied to a group of processes similar to net_cls and 
net_prio (but as I stated before those are orthogonal, independent 
settings from the L3 domain).