On Wed, Jun 12, 2013 at 09:10:57PM +0000, Jeff Squyres (jsquyres) wrote: > > Another way to look at it is "specify IO access permissions" for > > address space ranges. This could be useful to implement a buffer > > pool to be used for a specific MR only, yet still map/unmap memory > > within this pool on the fly to optimize physical memory > > utilization. In this case, you would provide smaller ranges than > > 2^64...
> Hmm; I'm not sure I understand. > > Userspace doesn't control what virtual addresses it gets back from > mmap/etc. Yes, it can, via MAP_FIXED. There are lots of fun tricks you can play using that. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
