From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Torvalds Subject: Re: [00/41] Large Blocksize Support V7 (adds memmap support) Date: Tue, 18 Sep 2007 21:33:32 -0700 (PDT) Message-ID: References: <20070911060349.993975297@sgi.com> <200709161853.12050.nickpiggin@yahoo.com.au> <200709181116.22573.nickpiggin@yahoo.com.au> <20070918191853.GB7541@v2.random> <46F09A80.8020605@gmail.com> <46F0A4FB.2020901@gmail.com> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=us-ascii Cc: Andrea Arcangeli , Nick Piggin , Christoph Lameter , Mel Gorman , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Christoph Hellwig , William Lee Irwin III , David Chinner , Jens Axboe , Badari Pulavarty , Maxim Levitsky , Fengguang Wu , swin wang , totty.lu@gmail.com, hugh@veritas.com, joern@lazybastard.org To: Rene Herman Return-path: Received: from smtp2.linux-foundation.org ([207.189.120.14]:32881 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750807AbXISEes (ORCPT ); Wed, 19 Sep 2007 00:34:48 -0400 In-Reply-To: <46F0A4FB.2020901@gmail.com> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Wed, 19 Sep 2007, Rene Herman wrote: > > I do feel larger blocksizes continue to make sense in general though. Packet > writing on CD/DVD is a problem already today since the hardware needs 32K or > 64K blocks and I'd expect to see more of these and similiar situations when > flash gets (even) more popular which it sort of inevitably is going to be. .. that's what scatter-gather exists for. What's so hard with just realizing that physical memory isn't contiguous? It's why we have MMU's. It's why we have scatter-gather. Linus