Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261474AbVCWWUG (ORCPT ); Wed, 23 Mar 2005 17:20:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261467AbVCWWUF (ORCPT ); Wed, 23 Mar 2005 17:20:05 -0500 Received: from mx1.suse.de ([195.135.220.2]:16037 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S261474AbVCWWTj (ORCPT ); Wed, 23 Mar 2005 17:19:39 -0500 To: Paul Mackerras Cc: "Luck, Tony" , "Hugh Dickins" , "Nick Piggin" , , , , , Subject: Re: [PATCH 1/6] freepgt: free_pgtables use vma list References: <16961.59549.946004.551974@cargo.ozlabs.ibm.com> From: Andreas Schwab X-Yow: Somewhere in DOWNTOWN BURBANK a prostitute is OVERCOOKING a LAMB CHOP!! Date: Wed, 23 Mar 2005 23:19:28 +0100 In-Reply-To: <16961.59549.946004.551974@cargo.ozlabs.ibm.com> (Paul Mackerras's message of "Thu, 24 Mar 2005 09:07:25 +1100") Message-ID: User-Agent: Gnus/5.110002 (No Gnus v0.2) Emacs/22.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 850 Lines: 24 Paul Mackerras writes: > Luck, Tony writes: > >> Can we legislate that "end==0" isn't possible. > > I think this is only likely to be a problem on 32-bit platforms with > hardware support for separate user and kernel address spaces. m68k > and sparc32 come to mind, though I might be mistaken. On m68k we don't allow addresses above 0xF0000000. Andreas. -- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstra?e 5, 90409 N?rnberg, Germany Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different." - 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/