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[82.53.135.12]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-490e5329d3asm28397365e9.13.2026.06.11.01.27.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Jun 2026 01:27:49 -0700 (PDT) Date: Thu, 11 Jun 2026 10:27:42 +0200 From: Stefano Garzarella To: Raf Dickson Cc: netdev@vger.kernel.org, virtualization@lists.linux.dev, pabeni@redhat.com, stefanha@redhat.com, bryan-bt.tan@broadcom.com, vishnu.dasa@broadcom.com, bcm-kernel-feedback-list@broadcom.com, bobbyeshleman@gmail.com Subject: Re: [PATCH net-next v2 1/2] vsock: fold sk_acceptq_added() into vsock_enqueue_accept() Message-ID: References: <20260611021317.69362-1-rafdog35@gmail.com> <20260611021317.69362-2-rafdog35@gmail.com> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: <20260611021317.69362-2-rafdog35@gmail.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: eRCU76QQLJoKJLePKazltqptXtnxiBIWTne7QOYQnfc_1781166471 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline On Thu, Jun 11, 2026 at 02:13:16AM +0000, Raf Dickson wrote: >virtio and hyperv call sk_acceptq_added() immediately before >vsock_enqueue_accept(). Move the call into vsock_enqueue_accept() >itself so callers cannot forget it and the accounting is consistent. > >vmci is left unchanged as sk_acceptq_added() there pairs with I'm confused, vmci is also calling vsock_enqueue_accept(), are we calling sk_acceptq_added() twice? Aaaah, vmci is calling vsock_enqueue_accept() after vsock_remove_pending(), so IIUC with the next patch we fix this, so should we reverse the order of the patches? Also, should we avoid this? Maybe adding a new function that moves a socket from the pending queue to the accept queue avoiding also sock_put/sock_hold dance and sk_acceptq_removed()/sk_acceptq_added(). I mean something like this (untested): void vsock_pending_to_accept(struct sock *listener, struct sock *pending) { struct vsock_sock *vpending = vsock_sk(pending); struct vsock_sock *vlistener = vsock_sk(listener); list_del_init(&vpending->pending_links); list_add_tail(&vpending->accept_queue, &vlistener->accept_queue); } To be called in vmci_transport_recv_connecting_server(). WDYT? >vsock_add_pending(), not vsock_enqueue_accept(), since connections So can we move sk_acceptq_added() also in vsock_add_pending()? (with another patch I guess) Thanks, Stefano >can be cleaned up by the pending work timer before ever reaching >vsock_enqueue_accept(). > >Suggested-by: Paolo Abeni >Suggested-by: Stefano Garzarella > >Signed-off-by: Raf Dickson >--- > net/vmw_vsock/af_vsock.c | 1 + > net/vmw_vsock/hyperv_transport.c | 1 - > net/vmw_vsock/virtio_transport_common.c | 1 - > 3 files changed, 1 insertion(+), 2 deletions(-) > >diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c >index 2ce1063d4a..73e6416ee9 100644 >--- a/net/vmw_vsock/af_vsock.c >+++ b/net/vmw_vsock/af_vsock.c >@@ -507,6 +507,7 @@ void vsock_enqueue_accept(struct sock *listener, struct sock *connected) > sock_hold(connected); > sock_hold(listener); > list_add_tail(&vconnected->accept_queue, &vlistener->accept_queue); >+ sk_acceptq_added(listener); > } > EXPORT_SYMBOL_GPL(vsock_enqueue_accept); > >diff --git a/net/vmw_vsock/hyperv_transport.c b/net/vmw_vsock/hyperv_transport.c >index b3394946b2..0de8148877 100644 >--- a/net/vmw_vsock/hyperv_transport.c >+++ b/net/vmw_vsock/hyperv_transport.c >@@ -410,7 +410,6 @@ static void hvs_open_connection(struct vmbus_channel *chan) > > if (conn_from_host) { > new->sk_state = TCP_ESTABLISHED; >- sk_acceptq_added(sk); > > hvs_new->vm_srv_id = *if_type; > hvs_new->host_srv_id = *if_instance; >diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c >index b10666937c..4a39d48db9 100644 >--- a/net/vmw_vsock/virtio_transport_common.c >+++ b/net/vmw_vsock/virtio_transport_common.c >@@ -1582,7 +1582,6 @@ virtio_transport_recv_listen(struct sock *sk, struct sk_buff *skb, > return ret; > } > >- sk_acceptq_added(sk); > if (virtio_transport_space_update(child, skb)) > child->sk_write_space(child); > >-- >2.54.0 >