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Fri, 22 Nov 2024 09:26:57 -0800 (PST) X-Google-Smtp-Source: AGHT+IFJ8cnKY3PHy55oSgMvuyy7GftnO8GWR0CeQCP0dYaT9/4MetPL4C2V96vIO3UU3FglDdAiFg== X-Received: by 2002:a5d:5f8c:0:b0:382:39a7:3995 with SMTP id ffacd0b85a97d-38260b5b5a5mr3051859f8f.17.1732296416829; Fri, 22 Nov 2024 09:26:56 -0800 (PST) Received: from lleonard-thinkpadp16vgen1.rmtit.csb ([176.206.22.110]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3825fbc3557sm3016023f8f.81.2024.11.22.09.26.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Nov 2024 09:26:56 -0800 (PST) From: Luigi Leonardi To: mhal@rbox.co Cc: andrii@kernel.org, ast@kernel.org, bobby.eshleman@bytedance.com, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, eddyz87@gmail.com, edumazet@google.com, haoluo@google.com, horms@kernel.org, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, kuba@kernel.org, linux-kselftest@vger.kernel.org, martin.lau@linux.dev, mst@redhat.com, mykolal@fb.com, netdev@vger.kernel.org, pabeni@redhat.com, sdf@fomichev.me, sgarzare@redhat.com, shuah@kernel.org, song@kernel.org, yonghong.song@linux.dev, Luigi Leonardi Subject: Re: [PATCH bpf 1/4] bpf, vsock: Fix poll() missing a queue Date: Fri, 22 Nov 2024 18:26:29 +0100 Message-ID: <20241122172629.62588-1-leonardi@redhat.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241118-vsock-bpf-poll-close-v1-1-f1b9669cacdc@rbox.co> References: <20241118-vsock-bpf-poll-close-v1-1-f1b9669cacdc@rbox.co> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit >When a verdict program simply passes a packet without redirection, sk_msg >is enqueued on sk_psock::ingress_msg. Add a missing check to poll(). > >Fixes: 634f1a7110b4 ("vsock: support sockmap") >Signed-off-by: Michal Luczaj >--- > net/vmw_vsock/af_vsock.c | 3 +++ > 1 file changed, 3 insertions(+) > >diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c >index dfd29160fe11c4675f872c1ee123d65b2da0dae6..919da8edd03c838cbcdbf1618425da6c5ec2df1a 100644 >--- a/net/vmw_vsock/af_vsock.c >+++ b/net/vmw_vsock/af_vsock.c >@@ -1054,6 +1054,9 @@ static __poll_t vsock_poll(struct file *file, struct socket *sock, > mask |= EPOLLRDHUP; > } > >+ if (sk_is_readable(sk)) >+ mask |= EPOLLIN | EPOLLRDNORM; >+ > if (sock->type == SOCK_DGRAM) { > /* For datagram sockets we can read if there is something in > * the queue and write as long as the socket isn't shutdown for LGTM, thanks! Reviewed-by: Luigi Leonardi