Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752591AbZKPKuT (ORCPT ); Mon, 16 Nov 2009 05:50:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752541AbZKPKuS (ORCPT ); Mon, 16 Nov 2009 05:50:18 -0500 Received: from www.tglx.de ([62.245.132.106]:51944 "EHLO www.tglx.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752306AbZKPKuR (ORCPT ); Mon, 16 Nov 2009 05:50:17 -0500 Date: Mon, 16 Nov 2009 11:49:08 +0100 (CET) From: Thomas Gleixner To: Dimitri Sivanich cc: Ingo Molnar , mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, yinghai@kernel.org, suresh.b.siddha@intel.com Subject: Re: [PATCH] Remove SMP ifdef from irq_desc In-Reply-To: <20091110185716.GA4665@sgi.com> Message-ID: References: <20091021011233.GB32196@sgi.com> <20091108145355.GA8432@elte.hu> <20091109160215.GA14718@sgi.com> <20091110044025.GA7897@elte.hu> <20091110163118.GA13707@sgi.com> <20091110171910.GA25581@elte.hu> <20091110185716.GA4665@sgi.com> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 765 Lines: 23 On Tue, 10 Nov 2009, Dimitri Sivanich wrote: > Remove the CONFIG_SMP ifdef from the irq_desc structure and consolidate > initializers for the smp/non-smp cases. > > For the x86_32 case, this adds 4 bytes of text and 128 bytes of data. > For the x86_64 case, this adds 15 bytes of text and 240 bytes of data. Hmm, on ARM and PowerPC the increase of data is 4K and I expect it's minimum the same on other architectures. Not sure if we should worry about it, but it's definitely a significant number. Thanks, tglx -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/