From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758243AbZCDUDq (ORCPT ); Wed, 4 Mar 2009 15:03:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757878AbZCDUCZ (ORCPT ); Wed, 4 Mar 2009 15:02:25 -0500 Received: from hera.kernel.org ([140.211.167.34]:33025 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757867AbZCDUCX (ORCPT ); Wed, 4 Mar 2009 15:02:23 -0500 Date: Wed, 4 Mar 2009 20:01:00 GMT From: Yinghai Lu To: linux-tip-commits@vger.kernel.org Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, yinghai@kernel.org, akpm@linux-foundation.org, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, yinghai@kernel.org, akpm@linux-foundation.org, tglx@linutronix.de, mingo@elte.hu In-Reply-To: <49AE4922.605@kernel.org> References: <49AE4922.605@kernel.org> Subject: [tip:x86/mm] x86: reserve exact size of mptable Message-ID: Git-Commit-ID: f62432395ec54e93f113091bcb2e2017eeed7683 X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Wed, 04 Mar 2009 20:01:08 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: f62432395ec54e93f113091bcb2e2017eeed7683 Gitweb: http://git.kernel.org/tip/f62432395ec54e93f113091bcb2e2017eeed7683 Author: "Yinghai Lu" AuthorDate: Wed, 4 Mar 2009 01:25:54 -0800 Commit: Ingo Molnar CommitDate: Wed, 4 Mar 2009 20:55:04 +0100 x86: reserve exact size of mptable Impact: save a bit of RAM Get the exact size for the reserve_bootmem() call. Signed-off-by: Yinghai Lu Cc: Andrew Morton LKML-Reference: <49AE4922.605@kernel.org> Signed-off-by: Ingo Molnar --- arch/x86/kernel/mpparse.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index ae9060c..e819240 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -716,10 +716,10 @@ static int __init smp_scan_config(unsigned long base, unsigned long length, if (!reserve) return 1; - reserve_bootmem_generic(virt_to_phys(mpf), PAGE_SIZE, + reserve_bootmem_generic(virt_to_phys(mpf), sizeof(*mpf), BOOTMEM_DEFAULT); if (mpf->physptr) { - unsigned long size = PAGE_SIZE; + unsigned long size = get_mpc_size(mpf->physptr); #ifdef CONFIG_X86_32 /* * We cannot access to MPC table to compute