Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755228AbYJHRgX (ORCPT ); Wed, 8 Oct 2008 13:36:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754572AbYJHRgN (ORCPT ); Wed, 8 Oct 2008 13:36:13 -0400 Received: from one.firstfloor.org ([213.235.205.2]:57685 "EHLO one.firstfloor.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754557AbYJHRgN (ORCPT ); Wed, 8 Oct 2008 13:36:13 -0400 To: Christoph Lameter Cc: Andy Whitcroft , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Jon Tollefson , Mel Gorman , Nick Piggin Subject: Re: [PATCH 1/1] hugetlbfs: handle pages higher order than MAX_ORDER From: Andi Kleen References: <1223458431-12640-1-git-send-email-apw@shadowen.org> <1223458431-12640-2-git-send-email-apw@shadowen.org> <48ECDD37.8050506@linux-foundation.org> Date: Wed, 08 Oct 2008 19:36:10 +0200 In-Reply-To: <48ECDD37.8050506@linux-foundation.org> (Christoph Lameter's message of "Wed, 08 Oct 2008 11:17:59 -0500") Message-ID: <87ej2rt2et.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (gnu/linux) 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: 699 Lines: 17 Christoph Lameter writes: > > But the memmap is contiguous in most cases. FLATMEM, VMEMMAP etc. Its only > some special sparsemem configurations that couldhave the issue because they > break up the vmemmap. x86_64 uses VMEMMAP by default. Is this for i386? i386 doesn't support huge pages > MAX_ORDER. I guess it's for ppc64, but they should probably just use vmemmap there if they don't already. -Andi -- ak@linux.intel.com -- 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/