Messages in this thread Patch in this message | | | Date | Wed, 1 Mar 2023 08:19:45 +0300 | From | Arseniy Krasnov <> | Subject | [RFC PATCH v1] vsock: check error queue to set EPOLLERR |
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EPOLLERR must be set not only when there is error on the socket, but also when error queue of it is not empty (may be it contains some control messages). Without this patch 'poll()' won't detect data in error queue. This patch is based on 'tcp_poll()'.
Signed-off-by: Arseniy Krasnov <AVKrasnov@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
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