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SubjectRe: Cachefs
(I tried to answer this posters question privately... unfortunately, their
email address they posted from <dtthomas.in.ofcmail@in.oracle.com> is
invalid "Bad domain: dtthomas.in.ofcmail") Deepak - please fix your
mailer before posting again, it's really annoying)

Deepak Tony Thomas wrote:
> Is Cachefs (Solaris has this) available on Linux ?!!

No, there was a project a long time ago if I remember right, but as far
as I know it went nowhere.

Cachefs would be really great, however. It's one thing thats keeping some
people stuck to Solaris and IRIX right now. I can say from experience that
it is extremely useful.

> One another thing - if I had a CD-ROM, I could mount that as a Cachefs with
> write permissions, whereas actually any writes would only create copies in
> the file-cache.

What you want is "unionfs" from BSD4.4. It's a seperate problem (although
it could be used with cachefs as you explain) Unfortunately, this isn't
something linux has either. I think the new VFS stuff would make this
not too hard. Some people are working on getting something like BSD's
'stackable filesystems' running under linux.

> Any comments ?

I'd suggest taking up this discussion on linux-future instead. There are
some people interested in future directions for VFS there.

-Mitch

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