Subject: Re: Cheesy compression/decompression in filesystem namespace (was Re: New read & write syscalls)
To: Brian C. Grayson <>
From: Bill Studenmund <>
List: tech-kern
Date: 07/02/1999 12:09:49
On Fri, 2 Jul 1999, Brian C. Grayson wrote:

> > While the idea's nice, we need to work on layered fs's caching data first.
> > I asked the Chucks about it, and it's an after-UBC thing.
>   Late night ramblings, for those interested....
>   A few months ago, I hacked mount_portal to provide an
> automatic filtering capability, suitable for
> compression/decompression.  Some example uses, where the portal
> is mounted on /p:

That's a slightly different thing. :-) When you open a protal file, you're
just getting back an open file descriptor. That's not a real file system,
where you can do any number of arbitrary things. :-)

Though I think it's cool and should go in the examples section!

Take care,