1 #val_type uint64_t 2 UFFD_FEATURE_PAGEFAULT_FLAG_WP 3 UFFD_FEATURE_EVENT_FORK 4 UFFD_FEATURE_EVENT_REMAP 5 UFFD_FEATURE_EVENT_REMOVE 6 UFFD_FEATURE_MISSING_HUGETLBFS 7 UFFD_FEATURE_MISSING_SHMEM 8 UFFD_FEATURE_EVENT_UNMAP 9 UFFD_FEATURE_SIGBUS 10 UFFD_FEATURE_THREAD_ID 11
