EFD_SHARED_FCNTL_FLAGS  429 fs/eventfd.c   			      O_RDWR | (flags & EFD_SHARED_FCNTL_FLAGS));
EFD_SHARED_FCNTL_FLAGS   30 include/linux/eventfd.h #define EFD_FLAGS_SET (EFD_SHARED_FCNTL_FLAGS | EFD_SEMAPHORE)
EFD_SHARED_FCNTL_FLAGS   29 include/linux/userfaultfd_k.h #define UFFD_FLAGS_SET (EFD_SHARED_FCNTL_FLAGS)