Erez,
Where's the sample source code?
Jeff
Erez Zadok wrote:
>
> In message <38E25AE9.5D59289@timpanogas.com>, "Jeff V. Merkey" writes:
> >
> >
> > Steve Dodd wrote:
> >
> > > AIUI [0], Al Viro, Stephen Tweedie, and a number of others have some
> > > interesting plans for the block device layer, buffer cache and page cache,
> > > and the interactions between them and with the VFS -- for 2.5. I assume
> > > they're busy with tidying up 2.4pre loose ends at the moment, but hopefully
> > > after 2.4 is out the door and stable there will be some discussion of the
> > > planned changes on linux-fsdevel. It sounds (I've not looked at your code yet)
> > > like your input would be useful when that happens. An I/O system that meets
> > > everyone's needs for 2.6 would be a great goal..
> > >
> > > BTW, regarding your comments about Linux documentation - have you looked at
> > > the work Alan Cox is doing on this yet?
> > >
> >
> > Yes, i've looked at Alan's Documentation stuff. And as always, Alan's
> > work is absolutely excellent -- however, what's really needed is
> > something like NT puts out with their IFS Kits, a sample VFS code
> > example for a NULL file system for folks who are porting to Linux.
>
> If you'd like a stackable f/s example, look at my work called "fist". It
> includes stackable file system templates and examples derived from it: a
> wrapper file system called wrapfs, and example such as ro13fs, cryptfs, and
> more:
>
> http://www.cs.columbia.edu/~ezk/research/fist/
>
> At the moment, the linux kernel needs very small passive patches to support
> loadable stackable modules. I've submitted those and hope they will be
> incorporated before 2.4 is out officially.
>
> I also plan to submit my template to Linus etc. for inclusion. The
> templates work just like lofs, but they are also an excellent way of
> learning how to write stackable file systems (and would nicely complement
> any improved documentation), and deriving new file systems out of it.
>
> > Would cut down on time along with an "oh shit" list of interface issues
> > to watch out for. Richard Gooch did a decent job on the vfs.txt file
> > (it was better than nothing). We need more though to get on par with
> > NT.
> >
> > Jeff
>
> Erez.
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