wait_for_direct_io
ret = wait_for_direct_io(ORANGEFS_IO_WRITE, inode, &off, &iter, ow->len,
if ((ret = wait_for_direct_io(ORANGEFS_IO_READ, inode,
ret = wait_for_direct_io(ORANGEFS_IO_READ, inode, &off, &iter,
ret = wait_for_direct_io(type, inode, offset, iter,
ret = wait_for_direct_io(ORANGEFS_IO_WRITE, inode, &off, &iter, wlen,
ssize_t wait_for_direct_io(enum ORANGEFS_io_type, struct inode *, loff_t *,