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@xxxxxxxx> SUSE Labs, CR -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
