On Sun, 24 Jul 2011 11:16:32 +0200 Alexander Graf <agraf@xxxxxxx> wrote: > On 19.07.2011, at 13:20, Johannes Weiner wrote: > > > You don't have to work around the mm subsystem trying to reclaim your > > memory, The pages are pinned by get_free_pages_fast(). > > maintain disk coherency that is guaranteed by the filebacked > > memory semantics etc. > > > > If your driver provides the memory, there are much less assumptions > > from userspace that you have to consider and memory management will > > not interfere either. > > Ah, thanks a lot. Scott, mind to switch this to the normal scheme then? Sounds like we don't need to dirty set by then either. That's a fair bit of churn and added complexity, both here and in qemu. Is it really worth redesigning this API again, to avoid setting a few dirty bits on an already-slow heavyweight exit? -Scott -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
