Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264281AbTGBRzs (ORCPT ); Wed, 2 Jul 2003 13:55:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264277AbTGBRzs (ORCPT ); Wed, 2 Jul 2003 13:55:48 -0400 Received: from nat-pool-bos.redhat.com ([66.187.230.200]:59945 "EHLO chimarrao.boston.redhat.com") by vger.kernel.org with ESMTP id S264256AbTGBRzn (ORCPT ); Wed, 2 Jul 2003 13:55:43 -0400 Date: Wed, 2 Jul 2003 14:07:03 -0400 (EDT) From: Rik van Riel X-X-Sender: riel@chimarrao.boston.redhat.com To: "Martin J. Bligh" cc: Andrea Arcangeli , Mel Gorman , Linux Memory Management List , Linux Kernel Mailing List Subject: Re: What to expect with the 2.6 VM In-Reply-To: <461030000.1057165809@flay> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 703 Lines: 15 On Wed, 2 Jul 2003, Martin J. Bligh wrote: > Maybe I'm just taking this out of context, and it's twisting my brain, > but as far as I know, the nonlinear vma's *are* backed by pte_chains. They are, but IMHO they shouldn't be. The nonlinear vmas are used only for database shared memory segments and other "bypass the VM" applications, so I don't see any reason why we need to complicate things hopelessly in order to deal with corner cases like truncate. - 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/