On Mon, Jul 30, 2018 at 09:15:43AM +0200, Christoph Hellwig wrote:
> + apt.error = -EINVAL; /* same as no support for IOCB_CMD_POLL */
> + mask = vfs_poll(req->file, &apt.pt) & req->events;
> + if (mask || apt.error) {
> + bool removed = false;
> +
> + /* we did not manage to set up a waitqueue, done */
> + if (unlikely(!req->head))
> + goto out_fput;
> +out_fput:
> + fput(req->file);
> + return apt.error;
Ugh... So anything that simply returns a constant value, without
even bothering to do poll_wait() (on the theory that no matter how
much you wait, nothing will change) is going to git -EINVAL?
What am I missing here?
