From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755438Ab2JDSRm (ORCPT ); Thu, 4 Oct 2012 14:17:42 -0400 Received: from a193-30.smtp-out.amazonses.com ([199.255.193.30]:30622 "EHLO a193-30.smtp-out.amazonses.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755201Ab2JDSRj (ORCPT ); Thu, 4 Oct 2012 14:17:39 -0400 Date: Thu, 4 Oct 2012 18:17:37 +0000 From: Christoph Lameter X-X-Sender: cl@gentwo.org To: Andrea Arcangeli cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Linus Torvalds , Andrew Morton , Peter Zijlstra , Ingo Molnar , Mel Gorman , Hugh Dickins , Rik van Riel , Johannes Weiner , Hillf Danton , Andrew Jones , Dan Smith , Thomas Gleixner , Paul Turner , Suresh Siddha , Mike Galbraith , "Paul E. McKenney" Subject: Re: your mail In-Reply-To: <20121004165008.GF25675@redhat.com> Message-ID: <0000013a2cff3c3d-76e00716-2869-4dc8-8717-82f0136018d0-000000@email.amazonses.com> References: <20121004165008.GF25675@redhat.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-SES-Outgoing: 199.255.193.30 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 4 Oct 2012, Andrea Arcangeli wrote: > So we could drop page_autonuma by creating a CONFIG_SLUB=y dependency > (AUTONUMA wouldn't be available in the kernel config if SLAB=y, and it > also wouldn't be available on 32bit archs but the latter isn't a > problem). Nope it should depend on page struct alignment. Other kernel subsystems may be depeding on page struct alignment in the future (and some other arches may already have that requirement)