From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [PATCH 00/10] AXFS: Advanced XIP filesystem Date: Thu, 21 Aug 2008 14:53:25 +0200 Message-ID: <200808211453.26233.arnd@arndb.de> References: <48AD00C4.6060302@gmail.com> <48AD42AE.4030107@de.ibm.com> <200808212043.51209.nickpiggin@yahoo.com.au> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200808212043.51209.nickpiggin@yahoo.com.au> Content-Disposition: inline Sender: linux-embedded-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: Nick Piggin Cc: carsteno@de.ibm.com, jaredeh@gmail.com, Linux-kernel@vger.kernel.org, linux-embedded@vger.kernel.org, linux-mtd , =?iso-8859-1?q?J=F6rn_Engel?= , tim.bird@am.sony.com On Thursday 21 August 2008, Nick Piggin wrote: > On Thursday 21 August 2008 20:25, Carsten Otte wrote: > > Jared Hulbert wrote: > > > I'd like to get a first round of review on my AXFS filesystem. > > > > I like the general approach of it. It's much more flexible than the > > ext2 extension I've done, and the possibility to select XIP vs. > > compression per page is really really neat. I can imagine that people > > will prefer this over the ext2 implementation on s390. It is unclear > > to me how the "secondary block device" thing is supposed to work. > > Could you elaborate a bit on that? > > Agreed. I haven't had a good look through it yet, but at a glance it > looks pretty neat. The VM side of things looks pretty reasonable > (I fear XIP faulting might have another race or two, but that's a > core mm issue rather than filesystem specific). Yes, I also like the file system, I guess this is 2.6.28 material and you should have it added to linux-next when you have addressed the comments so far. One thing that would be really nice is if you could add fake-write support in the way that I proposed for cramfs a few months ago. This would make axfs much more interesting for another set of users, and keep cramfs a really simple example file system. Arnd <><