From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262667AbVGHNoP (ORCPT ); Fri, 8 Jul 2005 09:44:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262662AbVGHNly (ORCPT ); Fri, 8 Jul 2005 09:41:54 -0400 Received: from [203.171.93.254] ([203.171.93.254]:63411 "EHLO cunningham.myip.net.au") by vger.kernel.org with ESMTP id S262660AbVGHNk7 (ORCPT ); Fri, 8 Jul 2005 09:40:59 -0400 Subject: Re: [PATCH] [46/48] Suspend2 2.1.9.8 for 2.6.12: 622-swapwriter.patch From: Nigel Cunningham Reply-To: ncunningham@cyclades.com To: nickpiggin@yahoo.com.au Cc: Linux Kernel Mailing List , Pekka Enberg In-Reply-To: <200507080726.22102.nickpiggin@yahoo.com.au> References: <11206164393426@foobar.com> <84144f0205070706326849b1e@mail.gmail.com> <1120770991.4860.1554.camel@localhost> <200507080726.22102.nickpiggin@yahoo.com.au> Content-Type: text/plain Organization: Cycades Message-Id: <1120830140.4860.3033.camel@localhost> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6-1mdk Date: Fri, 08 Jul 2005 23:42:20 +1000 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi. On Fri, 2005-07-08 at 07:26, nickpiggin@yahoo.com.au wrote: > On Fri, 8 Jul 2005 07:16 am, Nigel Cunningham wrote: > > Hi, > > > > > +struct io_info { > > > > + struct bio * sys_struct; > > > > + long block[PAGE_SIZE/512]; > > > > > > Aah, but for this you should use block_size(io_info->dev) instead. No > > > need to mess with sector sizes. Why is this long by the way? > > > PAGE_SIZE/512 is block size in bytes. > > > > No... it's the maximum number of blocks per page. Depending upon how > > the user has set the blocksize when they created the filesystem (in the > > case of filesystems), the number of blocks we use per page might be 1, > > 2, 4 or 8. > > > > MAX_BUF_PER_PAGE > > > It's long because a sector number is stored in it. > > > > sector_t? Fixed. Ta. Nigel -- Evolution. Enumerate the requirements. Consider the interdependencies. Calculate the probabilities. Be amazed that people believe it happened.