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.
>
> > 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.
>
> > o delayed allocation of file data
>
> Andrew Morton is working on generic delayed allocation at the vfs level I
> believe, why not bang heads with him and see if it can be made to work with
> VFS?
Already talked at the end of last week, got majorly sidetracked again
this week. This is definitely something I would like to be able to
leverage for XFS.
>
> > 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.
>
> > 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 ;-)
Steve
>
> --
> Daniel
--Steve Lord voice: +1-651-683-3511 Principal Engineer, Filesystem Software email: lord@sgi.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/