Re: [PATCH 00/10] AXFS: Advanced XIP filesystem

Arnd Bergmann
2008-08-21T12:53:41Z

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.