From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263285AbTFYA4a (ORCPT ); Tue, 24 Jun 2003 20:56:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263535AbTFYA4a (ORCPT ); Tue, 24 Jun 2003 20:56:30 -0400 Received: from holomorphy.com ([66.224.33.161]:14299 "EHLO holomorphy") by vger.kernel.org with ESMTP id S263285AbTFYA43 (ORCPT ); Tue, 24 Jun 2003 20:56:29 -0400 Date: Tue, 24 Jun 2003 18:10:31 -0700 From: William Lee Irwin III To: Daniel Phillips Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [RFC] My research agenda for 2.7 Message-ID: <20030625011031.GP26348@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Daniel Phillips , linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <200306250111.01498.phillips@arcor.de> <20030625004758.GO26348@holomorphy.com> <200306250307.18291.phillips@arcor.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200306250307.18291.phillips@arcor.de> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 25 June 2003 02:47, William Lee Irwin III wrote: >> Per struct address_space? This is an unnecessary limitation. On Wed, Jun 25, 2003 at 03:07:18AM +0200, Daniel Phillips wrote: > It's a sensible limitation, it keeps the radix tree lookup simple. It severely limits its usefulness. Dropping in a more flexible data structure should be fine. On Wednesday 25 June 2003 02:47, William Lee Irwin III wrote: >> This gives me the same data structure proliferation chills as bh's. On Wed, Jun 25, 2003 at 03:07:18AM +0200, Daniel Phillips wrote: > It's not nearly as bad. There is no distinction between subpage and base > struct page for almost all page operations, e.g., locking, IO, data access. But those are code sanitation issues. You need to make sure this doesn't explode on PAE. -- wli