HUGETLB_FLAG_ENCODE_256MB   30 include/uapi/asm-generic/hugetlb_encode.h #define HUGETLB_FLAG_ENCODE_256MB	(28 << HUGETLB_FLAG_ENCODE_SHIFT)
HUGETLB_FLAG_ENCODE_256MB   29 tools/include/asm-generic/hugetlb_encode.h #define HUGETLB_FLAG_ENCODE_256MB	(28 << HUGETLB_FLAG_ENCODE_SHIFT)