[ofa-general] Re: [patch 5/6] mmu_notifier: Support for drivers with revers maps (f.e. for XPmem)

[KOSAKI Motohiro]

> > > > Can you change the spec?
> > >
> > > Not really. It will break all existing codes.
> > 
> > I meant as in eg. submit changes to MPI-3
>
> MPI spec tries to be backward compatible. And MPI-2 spec is 10 years
> old, but MPI-1 is still in a wider use. HPC is moving fast in terms of HW
> technology, but slow in terms of SW. Fortran is still hot there :)

Agreed.
many many people dislike incompatible specification change.

We should accept real world spec.


- kosaki