Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261792AbVAMWW3 (ORCPT ); Thu, 13 Jan 2005 17:22:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261791AbVAMWWP (ORCPT ); Thu, 13 Jan 2005 17:22:15 -0500 Received: from mail23.syd.optusnet.com.au ([211.29.133.164]:53135 "EHLO mail23.syd.optusnet.com.au") by vger.kernel.org with ESMTP id S261764AbVAMWTx (ORCPT ); Thu, 13 Jan 2005 17:19:53 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16870.62464.192905.778878@wombat.chubb.wattle.id.au> Date: Fri, 14 Jan 2005 09:19:44 +1100 From: Peter Chubb To: Nick Piggin CC: linux-mm@kvack.org, linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: page table lock patch V15 [0/7]: overview In-Reply-To: <41E5C3E6.90906@yahoo.com.au> References: <41E4BCBE.2010001@yahoo.com.au> <20050112014235.7095dcf4.akpm@osdl.org> <20050112104326.69b99298.akpm@osdl.org> <41E5AFE6.6000509@yahoo.com.au> <20050112153033.6e2e4c6e.akpm@osdl.org> <41E5B7AD.40304@yahoo.com.au> <41E5BC60.3090309@yahoo.com.au> <41E5C3E6.90906@yahoo.com.au> X-Mailer: VM 7.17 under 21.4 (patch 15) "Security Through Obscurity" XEmacs Lucid Comments: Hyperbole mail buttons accepted, v04.18. X-Face: GgFg(Z>fx((4\32hvXq<)|jndSniCH~~$D)Ka:P@e@JR1P%Vr}EwUdfwf-4j\rUs#JR{'h# !]])6%Jh~b$VA|ALhnpPiHu[-x~@<"@Iv&|%R)Fq[[,(&Z'O)Q)xCqe1\M[F8#9l8~}#u$S$Rm`S9% \'T@`:&8>Sb*c5d'=eDYI&GF`+t[LfDH="MP5rwOO]w>ALi7'=QJHz&y&C&TE_3j! Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1129 Lines: 27 Nick Piggin wrote: Nick> I would say that having arch-definable accessors for Nick> the page tables wouldn't be a bad idea anyway, and the Nick> flexibility may come in handy for other things. Nick> It would be a big, annoying patch though :( We're currently working in a slightly different direction, to try to hide page-table implemention details from anything outside the page table implementation. Our goal is to be able to try out other page tables (e.g., Liedtke's guarded page table) instead of the 2/3/4 level fixed hierarchy. We're currently working on a 2.6.10 snapshot; obviously we'll have to roll up to 2.6.11 before releasing (and there are lots of changes there because of the recent 4-layer page table implementation). -- Dr Peter Chubb http://www.gelato.unsw.edu.au peterc AT gelato.unsw.edu.au The technical we do immediately, the political takes *forever* - 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/