bd02cc01d342 ("mm/memory_hotplug: make sure the pfn is aligned to the order when onlining")
b2c2ab208e4f ("mm/memory_hotplug: simplify online_pages_range()")
5ecae6359e3a ("mm/memory_hotplug: drop PageReserved() check in online_pages_range()")
a9cd410a3d29 ("mm/page_alloc.c: memory hotplug: free pages as higher order")