On Wed, 21 Jun 2017, Boris Ostrovsky wrote:
> >>> +
> >>> + mappass->reqcopy = *req;
> >>> + icsk = inet_csk(mappass->sock->sk);
> >>> + queue = &icsk->icsk_accept_queue;
> >>> + spin_lock(&queue->rskq_lock);
> >>> + data = queue->rskq_accept_head != NULL;
> >>> + spin_unlock(&queue->rskq_lock);
>
>>> +
>>> + mappass->reqcopy = *req;
>>> + icsk = inet_csk(mappass->sock->sk);
>>> + queue = &icsk->icsk_accept_queue;
>>> + spin_lock(&queue->rskq_lock);
>>> + data = queue->rskq_accept_head != NULL;
>>> + spin_unlock(&queue->rskq_lock);
>> What is the purpose of the queue lock here?
On Tue, 20 Jun 2017, Boris Ostrovsky wrote:
> > @@ -499,6 +521,55 @@ static int pvcalls_back_accept(struct xenbus_device
> > *dev,
> > static int pvcalls_back_poll(struct xenbus_device *dev,
> > struct xen_pvcalls_request *req)
> > {
> > + struct pvcalls_fedata *fedata
> @@ -499,6 +521,55 @@ static int pvcalls_back_accept(struct xenbus_device *dev,
> static int pvcalls_back_poll(struct xenbus_device *dev,
>struct xen_pvcalls_request *req)
> {
> + struct pvcalls_fedata *fedata;
> + struct sockpass_mapping *mappass;
> + st
