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SubjectRe: [PATCH v4 11/13] xen/pvcalls: implement poll command
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>
> +static unsigned int pvcalls_front_poll_passive(struct file *file,
> + struct pvcalls_bedata *bedata,
> + struct sock_mapping *map,
> + poll_table *wait)
> +{
> + int notify, req_id, ret;
> + struct xen_pvcalls_request *req;
> +
> + if (test_bit(PVCALLS_FLAG_ACCEPT_INFLIGHT,
> + (void *)&map->passive.flags)) {
> + uint32_t req_id = READ_ONCE(map->passive.inflight_req_id);
> +
> + if (req_id != PVCALLS_INVALID_ID &&
> + READ_ONCE(bedata->rsp[req_id].req_id) == req_id)
> + return POLLIN | POLLRDNORM;


Do we need to clear PVCALLS_FLAG_ACCEPT_INFLIGHT? Or do we expect a
(subsequent?) accept() to do that?

-boris



> +
> + poll_wait(file, &map->passive.inflight_accept_req, wait);
> + return 0;
> + }
> +

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