Some cleanups (+ one fix for a special case) in the context of online_pages(). Hope I am not missing something obvious. Did a sanity test with DIMMs only. v1 -> v2: - "mm/memory_hotplug: Handle unaligned start and nr_pages in online_pages_blocks()" -- Turned into "mm/memory_hotplug: make sure the pfn is aligned to the order when onlining" -- Dropped the "nr_pages not an order of two" condition for now as requested by Michal, but kept a simplified alignment check - "mm/memory_hotplug: Drop PageReserved() check in online_pages_range()" -- Split out from "mm/memory_hotplug: Simplify online_pages_range()" - "mm/memory_hotplug: Simplify online_pages_range()" -- Modified due to the other changes David Hildenbrand (5): resource: Use PFN_UP / PFN_DOWN in walk_system_ram_range() mm/memory_hotplug: Drop PageReserved() check in online_pages_range() mm/memory_hotplug: Simplify online_pages_range() mm/memory_hotplug: Make sure the pfn is aligned to the order when onlining mm/memory_hotplug: online_pages cannot be 0 in online_pages() kernel/resource.c | 4 +-- mm/memory_hotplug.c | 61 ++++++++++++++++++++------------------------- 2 files changed, 29 insertions(+), 36 deletions(-) -- 2.21.0