> Well the GRU uses follow_page() instead of get_user_pages. Performance is > a major issue for the GRU.
Worse, the GRU takes its TLB faults from within an interrupt so we use follow_page to prevent going to sleep. That said, I think we could probably use follow_page() with FOLL_GET set to accomplish the requirements of mmu_notifier invalidate_range call. Doesn't look too promising for hugetlb pages. 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/
