Re: [PATCH RFC 1/3] vsock: support sockmap

From: Bobby Eshleman
Date: Sun Jan 22 2023 - 00:03:34 EST


On Sat, Jan 21, 2023 at 11:22:31AM -0800, Cong Wang wrote:
> On Wed, Jan 18, 2023 at 12:27:39PM -0800, Bobby Eshleman wrote:
> > +static int vsock_read_skb(struct sock *sk, skb_read_actor_t read_actor)
> > +{
> > + struct vsock_sock *vsk = vsock_sk(sk);
> > +
> > + if (!vsk->transport)
> > + return -ENODEV;
> > +
> > + if (!vsk->transport->read_skb)
> > + return -EOPNOTSUPP;
>
> Can we move these two checks to sockmap update path? It would make
> vsock_read_skb() faster.
>
> > +
> > + return vsk->transport->read_skb(vsk, read_actor);
> > +}
>
> Essentially can be just this one line.
>
> Thanks.

That makes sense, will do.

Thanks,
Bobby