On Fri, Aug 09, 2013 at 01:21:34AM -0400, Naoya Horiguchi wrote: > Before enabling each user of page migration to support hugepage, > this patch enables the list of pages for migration to link not only > LRU pages, but also hugepages. As a result, putback_movable_pages() > and migrate_pages() can handle both of LRU pages and hugepages. > LRU pages and *allocated* hugepages. On its own the patch looks ok but it's not obvious at this point what happens for pages that are on the hugetlbfs pool lists but not allocated by any process. They will fail to isolate because of the get_page_unless_zero() check. Maybe it's handled by a later patch. -- Mel Gorman SUSE Labs -- 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>