From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753535AbaARPKN (ORCPT ); Sat, 18 Jan 2014 10:10:13 -0500 Received: from mail-qc0-f173.google.com ([209.85.216.173]:33756 "EHLO mail-qc0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752766AbaARPKL (ORCPT ); Sat, 18 Jan 2014 10:10:11 -0500 Date: Sat, 18 Jan 2014 10:10:06 -0500 From: Tejun Heo To: Li Zefan Cc: containers@lists.linux-foundation.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, Neil Horman , Thomas Graf , "David S. Miller" , Daniel Borkmann Subject: Re: [PATCH 1/6] cgroup: make CONFIG_NET_CLS_CGROUP and CONFIG_NETPRIO_CGROUP bool instead of tristate Message-ID: <20140118151006.GF3640@htj.dyndns.org> References: <1389982317-22225-1-git-send-email-tj@kernel.org> <1389982317-22225-2-git-send-email-tj@kernel.org> <52D9D421.6040608@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <52D9D421.6040608@huawei.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hey, On Sat, Jan 18, 2014 at 09:08:49AM +0800, Li Zefan wrote: > Cc: Daniel Borkmann > > 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. :) Ooh, cool. :) Unless there's gonna be another rc, I think it's already a bit too late for 3.14 anyway. I'll drop the net_cls part and rebase the changes on top of rc1 later on. Thanks. -- tejun