absent_pages_in_range 451 arch/x86/mm/numa.c e820ram = max_pfn - absent_pages_in_range(0, max_pfn); absent_pages_in_range 37 arch/x86/mm/numa_emulation.c return PFN_PHYS(absent_pages_in_range(start_pfn, end_pfn)); absent_pages_in_range 2177 include/linux/mm.h extern unsigned long absent_pages_in_range(unsigned long start_pfn,