diff mbox series

[net-next,v4,01/12] vsock: set EPOLLERR on non-empty error queue

Message ID 20231010191524.1694217-2-avkrasnov@salutedevices.com (mailing list archive)
State New, archived
Headers show
Series vsock/virtio: continue MSG_ZEROCOPY support | expand

Commit Message

Arseniy Krasnov Oct. 10, 2023, 7:15 p.m. UTC 
If socket's error queue is not empty, EPOLLERR must be set. Otherwise,
reader of error queue won't detect data in it using EPOLLERR bit.
Currently for AF_VSOCK this is actual only with MSG_ZEROCOPY, as this
feature is the only user of an error queue of the socket.

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
---
 net/vmw_vsock/af_vsock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 013b65241b65..d841f4de33b0 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1030,7 +1030,7 @@  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;