Re: Whither XFS? (was: Congrats Marcelo)

Daniel Phillips (phillips@bonn-fries.net)
Mon, 25 Feb 2002 09:22:35 +0100


On February 27, 2002 12:39 am, Steve Lord wrote:
> On Sun, 2002-02-24 at 18:28, Daniel Phillips wrote:
> > >
> > > o Posix ACL support
> >
> > Are you able to leverage the new EA interface?...
>
> Where do you think the interface originated? A lot of time was spent
> working on this and getting the ext2 and xfs code bases in sync.

Just checking. So that's one place you're already syncing up with Linus.

> >
> > > o The ability to do online filesystem dumps which are coherent with
> > > the system call interface
> >
> > It would be nice if some other filesystems could share that mechanism, do
> > you think it's feasible? If not, what's the stumbling block? I haven't
> > looked at this for some time and there's was some furious work going on
> > exactly there just before 2.5. It seems we've at least progressed a
> > little from the viewpoint that nobody would want that.
>
> Not really, there are some hooks into XFS which are probably totally
> non-trivial for other filesystems.

So could you explain your approach here? This pagebuf-land right?

> [...]
> >
> > > o DMAPI
> >
> > It would be nice to have unsucky file events. But there's been roughly zero
> > discussion of dmapi on lkml as far as I can see.
>
> Yep, and its not my strong suite. The previous attempt at an implementation
> by someone else appears to have died a death.

I see Ben Lahaise aio proposal comes complete with a form of event queues,
would it be possible to share some of the machinery?

> > > As it is we did all of these, and we seem to have half the Linux NAS
> > > vendors in the world building xfs into their boxes.
> >
> > True enough.
>
> Now if only we could make some money out of them ;-)

Make money on XFS? Not directly I'd say, but keeping customers happy when
they move to Linux - that has to count for something. As far as making
heaps of $$$ goes, just keep shipping kickass boxes running real OS's and
don't get sucked in by billg again ;-)

-- 
Daniel
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