SECTIONS_SHIFT 426 include/linux/mm.h #define SECTIONS_WIDTH SECTIONS_SHIFT SECTIONS_SHIFT 470 include/linux/mm.h #define ZONEID_SHIFT (SECTIONS_SHIFT + ZONES_SHIFT) SECTIONS_SHIFT 844 include/linux/mmzone.h #define NR_MEM_SECTIONS (1UL << SECTIONS_SHIFT) SECTIONS_SHIFT 17 mm/mm_init.c #ifndef SECTIONS_SHIFT SECTIONS_SHIFT 81 mm/mm_init.c SECTIONS_SHIFT,