ORANGEFS_io_type
ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inode,
enum ORANGEFS_io_type type = iov_iter_rw(iter) == WRITE ?
ssize_t wait_for_direct_io(enum ORANGEFS_io_type, struct inode *, loff_t *,
ssize_t do_readv_writev(enum ORANGEFS_io_type, struct file *, loff_t *,
enum ORANGEFS_io_type io_type;