Re: [RFC 0/2] New MAP_PMEM_AWARE mmap flag
Dan Williams <dan.j.williams(a)intel.com> writes:
> I see. So I think your argument is that new file systems (such
as Nova)
> can have whacky new semantics, but existing file systems should provide
> the more conservative semantics that they have provided since the dawn
> of time (even if we add a new mmap flag to control the behavior).
>
> I don't agree with that. :)
>
Fair enough. Recall, I was pushing MAP_DAX not to long ago. It just
seems like a Sisyphean effort to push an mmap flag up the XFS hill and
maybe that effort is better spent somewhere else.
Given Dave's last response to Boaz, I see what you mean, and I also
understand Dave's reasoning better, now. FWIW, I never disagreed with
spending effort elsewhere for now. I did think that the mmap flag was
on the horizon, though. From Dave's comments, I think the prospects of
that are slim to none. That's fine, at least we have a definite
direction. Time to update all of the slide decks. =)
Cheers,
Jeff