Re: Pull request for FS-Cache, including NFS patches

[Andrew Morton <akpm@linux-foundation.org>]

On Fri, 19 Dec 2008 02:27:24 +0000 David Howells <dhowells@redhat.com> wrote:

> > Are any distros pushing for this?  Or shipping it?  If so, are they
> > able to weigh in and help us with this quite difficult decision?
> 
> We (Red Hat) have shipped it in RHEL-5 and some Fedora releases.  Doing so is
> quite an effort, though, precisely because the code is not yet upstream.  We
> have customers using it and are gaining more customers who want it.  There
> even appear to be CentOS users using it (or at least complaining when it
> breaks).

That's useful news.

> 
> I don't know what will convince you.  I've given you theoretical reasons why
> caching ought to be useful; I've backed up the ones I've implemented with
> benchmarks; I've given you examples of what our customers are doing with it or
> want to do with it.

Was that information captured/maintained somewhere?  It really is important (I
think) for something of this magnitude.

> Please help me understand what else you want.

I want to be able to have an answer when someone asks me "why was all that
stuff merged".  One which I can believe.

> Do you perhaps want the netfs maintainers (such as Trond) to say that it's
> necessary?

Of course, their opinions (and supporting explanations) would be valuable.