On Wed, Jan 23, 2008 at 11:48:43AM -0800, Christoph Lameter wrote: > On Wed, 23 Jan 2008, Andrea Arcangeli wrote: > > > On Wed, Jan 23, 2008 at 04:52:47AM -0600, Robin Holt wrote: > > > But 100 callouts holding spinlocks will not work for our implementation > > > and even if the callouts are made with spinlocks released, we would very > > > strongly prefer a single callout which messages the range to the other > > > side. > > > > But you take the physical address and turn into mm+va with your rmap... > > The remote mm+va or a local mm+va?
To be more complete, the phys is pointing to a xpmem_segment+va and the xpmem_segment points to the mm. The seg describes a window into the source processes virtual address space. Seems somewhat analogous to the Xen grant, but I do not know. Thanks, Robin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
