modifying nullfs

[sad at bestmx.ru]

Matthew Dillon ïèøåò:
> :Antonio Huete Jimenez ïèøåò:
> :> Hi,
> :>
> :> For what is the filesystem you are trying to develop? Does it try to
> :> fill any specific gap other filesystem do not?
> :> Or are you doing it just for educational purposes?
> :
> :Educational, for now.
> :And then i sincerely apologize,
> :i must familiarize myself with the subject prior to share any ambitious
> :ideas.
>
>      Not a big deal, feel free to ask questions!
>
>      For educational purposes I recommend looking at tmpfs rather than nullfs.
>      tmpfs is a full-blown memory filesystem.

honestly, i think about some kind of abstraction layer over HammerFS, 
that's why a stackable FS impressed me.