PAGES_PER_SECTION 36 arch/x86/include/asm/mmzone_32.h return((int) physnode_map[(pfn) / PAGES_PER_SECTION]); PAGES_PER_SECTION 121 include/linux/memory.h #define CONFIG_MEM_BLOCK_SIZE (PAGES_PER_SECTION<<PAGE_SHIFT) PAGES_PER_SECTION 1065 include/linux/mmzone.h #define PAGE_SECTION_MASK (~(PAGES_PER_SECTION-1)) PAGES_PER_SECTION 1077 include/linux/mmzone.h #define SECTION_ALIGN_UP(pfn) (((pfn) + PAGES_PER_SECTION - 1) & PAGE_SECTION_MASK)