Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762851AbXJYUxg (ORCPT ); Thu, 25 Oct 2007 16:53:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754859AbXJYUx1 (ORCPT ); Thu, 25 Oct 2007 16:53:27 -0400 Received: from terminus.zytor.com ([198.137.202.10]:50380 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753001AbXJYUx0 (ORCPT ); Thu, 25 Oct 2007 16:53:26 -0400 Message-ID: <472101D8.1020104@zytor.com> Date: Thu, 25 Oct 2007 13:51:36 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.5 (X11/20070727) MIME-Version: 1.0 To: Erez Zadok CC: Hugh Dickins , Pekka Enberg , Andrew Morton , ryan@finnie.org, mhalcrow@us.ibm.com, cjwatson@ubuntu.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, stable@kernel.org Subject: Re: [PATCH+comment] fix tmpfs BUG and AOP_WRITEPAGE_ACTIVATE References: <200710251601.l9PG1Mue019939@agora.fsl.cs.sunysb.edu> In-Reply-To: <200710251601.l9PG1Mue019939@agora.fsl.cs.sunysb.edu> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1249 Lines: 27 Erez Zadok wrote: > In message , Hugh Dickins writes: >> On Thu, 25 Oct 2007, Pekka Enberg wrote: > >> With unionfs also fixed, we don't know of an absolute need for this >> patch (and so, on that basis, the !wbc->for_reclaim case could indeed >> be removed very soon); but as I see it, the unionfs case has shown >> that it's time to future-proof this code against whatever stacking >> filesystems come along. Hence I didn't mention the names of such >> filesystems in the source comment. > > I think "future proof" for other stackable f/s is a good idea, esp. since > many of the stackable f/s we've developed and distributed over the past 10 > years are in some use in various places: gzipfs, avfs, tracefs, replayfs, > ncryptfs, versionfs, wrapfs, i3fs, and more (see www.filesystems.org). > A number of filesystems want partial or full stackability, so getting rid of lack-of-stackability whereever it may be is highly valuable. -hpa - 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/