This patch series is meant to address some issues I consider to be low-hanging fruit in regards to memory initialization optimization. With these two changes I am able to cut the hot-plug memory initialization times in my environment in half. --- Alexander Duyck (2): mm: Move page struct poisoning from CONFIG_DEBUG_VM to CONFIG_DEBUG_VM_PGFLAGS mm: Create non-atomic version of SetPageReserved for init use include/linux/page-flags.h | 1 + mm/memblock.c | 2 +- mm/page_alloc.c | 4 ++-- mm/sparse.c | 2 +- 4 files changed, 5 insertions(+), 4 deletions(-) --