Virtualization - Feb 2023 - [RFC PATCH v1 01/12] vsock: check error queue to set EPOLLERR

On Mon, Feb 06, 2023 at 06:53:22AM +0000, Arseniy Krasnov
wrote:
>If socket's error queue is not empty, EPOLLERR must be set.
Could this patch go regardless of this series?

Can you explain (even in the commit message) what happens without this
patch?

Thanks,
Stefano
>
>Signed-off-by: Arseniy Krasnov <AVKrasnov at sberdevices.ru>
>---
> net/vmw_vsock/af_vsock.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
>index 19aea7cba26e..b5e51ef4a74c 100644
>--- a/net/vmw_vsock/af_vsock.c
>+++ b/net/vmw_vsock/af_vsock.c
>@@ -1026,7 +1026,7 @@ static __poll_t vsock_poll(struct file *file, struct
socket *sock,
> 	poll_wait(file, sk_sleep(sk), wait);
> 	mask = 0;
>
>-	if (sk->sk_err)
>+	if (sk->sk_err ||
!skb_queue_empty_lockless(&sk->sk_error_queue))
> 		/* Signify that there has been an error on this socket. */
> 		mask |= EPOLLERR;
>
>-- 
>2.25.1