From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752059AbbJLK0o (ORCPT ); Mon, 12 Oct 2015 06:26:44 -0400 Received: from www.linutronix.de ([62.245.132.108]:43827 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751857AbbJLK0n (ORCPT ); Mon, 12 Oct 2015 06:26:43 -0400 Date: Mon, 12 Oct 2015 12:25:58 +0200 (CEST) From: Thomas Gleixner To: Daniel J Blueman cc: Jiang Liu , Denys Vlasenko , Ingo Molnar , Len Brown , x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 3/3] x86/apic: Use smaller array for __apicid_to_node[] mapping In-Reply-To: <1444645261.25258.1@outlook-emeawest.office365.com> Message-ID: References: <1443813145-29102-1-git-send-email-dvlasenk@redhat.com> <1443813145-29102-3-git-send-email-dvlasenk@redhat.com> <5617DEC4.5060705@linux.intel.com> <1444645261.25258.1@outlook-emeawest.office365.com> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 12 Oct 2015, Daniel J Blueman wrote: > Another approach which may be suitable without changing SRAT parsing to be > after the memory allocator is up, is to exploit the associativity of the > bottom APIC ID bits. What's the problem with moving (SRAT/ACPI/whatever) APIC parsing after the memory allocator is up and available? Thanks, tglx