offline_pages 82 arch/powerpc/platforms/powernv/memtrace.c if (offline_pages(start_pfn, nr_pages)) { offline_pages 230 drivers/base/memory.c ret = offline_pages(start_pfn, nr_pages); offline_pages 316 include/linux/memory_hotplug.h extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);