While working on some other cleanups I stumbled over the creation/removal of memblocks in hotplug code and wondered why we still need that. Turns out, we only need that handling with CONFIG_ARCH_KEEP_MEMBLOCK - unless I am missing something important (-> RFC). I'll be sending out patches to remove CONFIG_ARCH_KEEP_MEMBLOCK on s390x soonish, after finding a way to test them. Gave it a quick test on x86-64. David Hildenbrand (2): mm/memory_hotplug: no need to init new pgdat with node_start_pfn mm/memory_hotplug: handle memblocks only with CONFIG_ARCH_KEEP_MEMBLOCK mm/Kconfig | 3 +++ mm/memory_hotplug.c | 28 +++++++++++++--------------- 2 files changed, 16 insertions(+), 15 deletions(-) -- 2.25.1