SECTION_SIZE_BITS   23 include/linux/memory.h #define MIN_MEMORY_BLOCK_SIZE     (1UL << SECTION_SIZE_BITS)
SECTION_SIZE_BITS 1059 include/linux/mmzone.h #define PA_SECTION_SHIFT	(SECTION_SIZE_BITS)
SECTION_SIZE_BITS 1060 include/linux/mmzone.h #define PFN_SECTION_SHIFT	(SECTION_SIZE_BITS - PAGE_SHIFT)
SECTION_SIZE_BITS 1070 include/linux/mmzone.h #if (MAX_ORDER - 1 + PAGE_SHIFT) > SECTION_SIZE_BITS
SECTION_SIZE_BITS   28 include/linux/page-flags-layout.h #define SECTIONS_SHIFT	(MAX_PHYSMEM_BITS - SECTION_SIZE_BITS)