[FYI] tux3: Core changes

[Jan Kara]

On Fri 31-07-15 17:16:45, Daniel Phillips wrote:
> On Friday, July 31, 2015 5:00:43 PM PDT, Daniel Phillips wrote:
> >Note: Hirofumi's email is clear, logical and speaks to the
> >question. This branch of the thread is largely pointless, though
> >it essentially says the same thing in non-technical terms. Perhaps
> >your next response should be to Hirofumi, and perhaps it should be
> >technical.
> 
> Now, let me try to lead the way, but being specific. RDMA was raised
> as a potential failure case for Tux3 page forking. But the RDMA api
> does not let you use memory mmaped by Tux3 as a source or destination
> of IO. Instead, it sets up its own pages and hands them out to the
> RDMA app from a pool. So no issue. One down, right?

Can you please tell me how you arrived to that conclusion? As far as I'm
looking at the code in drivers/infiniband/ I don't see anything there
preventing userspace from passing in mmapped memory...

								Honza
-- 
Jan Kara <jack at suse.com>
SUSE Labs, CR