MAP_HUGE_2MB       19 include/linux/mman.h #define MAP_HUGE_2MB 0
MAP_HUGE_2MB       32 include/uapi/linux/mman.h #define MAP_HUGE_2MB	HUGETLB_FLAG_ENCODE_2MB
MAP_HUGE_2MB       32 tools/include/uapi/linux/mman.h #define MAP_HUGE_2MB	HUGETLB_FLAG_ENCODE_2MB
MAP_HUGE_2MB       30 tools/testing/selftests/vm/thuge-gen.c #define MAP_HUGE_2MB    (21 << MAP_HUGE_SHIFT)