On Wed, Feb 10, 2016 at 9:57 PM, Haggai Eran [off-list ref] wrote:

There is indeed an effort to backport the latest RDMA subsystem modules to
older kernels, and it would be preferable to be able to introduce new
resources through these modules.

Right. There is hardly 10 to 20 lines of code that allows to support
this functionality. So I think its good thing to have.

quoted

If resources are defined by RDMA cgroup kernel than adding/removing
resource means, someone have to do lot of engineering with different
versions of kernel support and loadable module support using compat.h
etc at driver level, which in my mind is some amount of engineering
compare to what v5 has to offer and its already available. With one
round of cleanup in resource definition, it should be usable.

If I understand correctly, if the resources are defined in the cgroup,
you simply won't be able to add new resources with a module update,
no matter how hard you work.

Yes.
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html