On Thu, Apr 13, 2017 at 06:29:46PM +0200, Samuel Thibault wrote: > (Ideally we'd be able to take the MAP_HUGETLB mmap flag into account to > map a single huge page repeatedly, even lowering the populating cost, > but AIUI of the current hugepage support it would be far from easy) You could implement ->map_pages instead of (or as well as) ->fault, which would lower your costs if that is a concern. I think the eventual intent is that map_pages would be able to populate a PMD or even a PUD. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>