Re: Is it good for a PDA fs?

[Oleg Drokin <green@namesys.com>]

Hello!

On Sun, Jun 23, 2002 at 12:56:30AM +0400, Hans Reiser wrote:

> >CF is different story. They fight level of wearing in underlying layer.
> Meaning that they hide it in the device driver, and the FS does not need 
> to be aware of it?

Yes. Otherwise CF media would be pretty much useless in conjunction with VFAT.

> >And you can format CF with reiserfs without any problems
> >But do not expect that windows or digital cameras would understand
> >that ;)
> >Also - in conjunctions with PDAs - reiserfs is quite memory (RAM) hungry,
> >so using it on 32M ram box is somewhat questionable.
> >And static 32M journal (that's 13% off your CF size, btw)
> Our journal resizing patch is waiting for the next pre1 to go in, yes?

Yes.

> Regardless of all of this, it really would not surprise me if a 
> filesystem design for CFs does a better job than we do at CFs.....

I am not aware of any CF-centric filesystem. Because CF represents itself as
IDE device.
Directly accessible flash is a different matter of course.

> >Building ARM kernels is easy.
> >I always build kernels for my ARM toys myself.
> >and I bet that Zaurus kernel is based off some -rmk kernel with
> >may be minor patches (sources of these should be available at Sharp
> >of course).
> >So getting (making) new kernel should be trivial.
> I think I probably care more about downloading and trying the latest 
> kalendar than installing a new kernel on it.;-)   It is nice to have ssh 

Yes, exactly. I do not see how you (or any other user) would benefit from
using anything but vfat in CF, but disadvantages are pretty clear.

Bye,
    Oleg