HUGETLB_PAGE_ORDER 46 include/linux/pageblock-flags.h #define pageblock_order HUGETLB_PAGE_ORDER HUGETLB_PAGE_ORDER 1301 mm/hugetlb.c hugetlb_add_hstate(HUGETLB_PAGE_ORDER); HUGETLB_PAGE_ORDER 3361 mm/page_alloc.c return HUGETLB_PAGE_ORDER;