HAVE_ARCH_HUGETLB_UNMAPPED_AREA  197 fs/hugetlbfs/inode.c #ifndef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
HAVE_ARCH_HUGETLB_UNMAPPED_AREA  322 include/linux/hugetlb.h #ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA