Cc: Daniel Borkmann <[email protected]>

On 2014/1/18 2:11, Tejun Heo wrote:
> net_cls and net_prio are the only cgroups which are allowed to be
> built as modules.  The savings from allowing the two controllers to be
> built as modules are tiny especially given that cgroup module support
> itself adds quite a bit of complexity.
> 
> The following are the sizes of vmlinux with both built as module and
> both built as part of the kernel image with cgroup module support
> removed.
> 
>       text            data            bss             dec
>       20292207        2411496         10784768        33488471
>       20293421        2412568         10784768        33490757
> 
> The total difference is 2286 bytes.  Given that none of other
> controllers has much chance of being made a module and that we're
> unlikely to add new modular controllers, the added complexity is
> simply not justifiable.
> 
> As a first step to drop cgroup module support, this patch changes the
> two config options to bool from tristate and drops module related code
> from the two controllers.
> 

I sugguested Daniel to do this for net_cls, and the change has been in
net-next.

https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=fe1217c4f3f7d7cbf8efdd8dd5fdc7204a1d65a8

I was planning to remove module support after that change goes into
upstream. :)

> Signed-off-by: Tejun Heo <[email protected]>
> Cc: Neil Horman <[email protected]>
> Cc: Thomas Graf <[email protected]>
> Cc: "David S. Miller" <[email protected]>
> ---
>  net/Kconfig               |  2 +-
>  net/core/netprio_cgroup.c | 32 ++------------------------------
>  net/sched/Kconfig         |  2 +-
>  net/sched/cls_cgroup.c    | 23 ++---------------------
>  4 files changed, 6 insertions(+), 53 deletions(-)
> 

The modular version of task_netprioidx() in include/net/netprio_cgroup.h
can be removed.

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