From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 3F22245DA7 for ; Tue, 26 Nov 2024 09:14:55 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 26D6340E2B; Tue, 26 Nov 2024 09:14:55 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by mails.dpdk.org (Postfix) with ESMTP id 1D65240E2B for ; Tue, 26 Nov 2024 09:14:54 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1732608893; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=UcSyHU5VZrFPjj35Sc+FYgHY8y49n6uud0cYC2tfpZA=; b=CXh7h48lELS9f3ezpHDUUzXyUncSckrXSXYhR20CyFsSLUy+S4rcrUpqfZxXcZid+ofEJ3 puYzJ+5i5y1sDL4KcW7sID3sfiOURAk5fmglOVIKq7tAN1BRu8Xo/5jw26Pe+FMv1sclia lwQBDpkC+xIuO1dECJxOkJMHd5+OKw8= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-478-_pKaszQONViIZl3H7az43A-1; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org On 11/18/24 17:24, Stephen Hemminger wrote: > If lock is acquired for write, it must be released for write > or a deadlock is likely. > > Bugzilla ID: 1582 > Fixes: 9fc93a1e2320 ("vhost: fix virtqueue access check in datapath") > Cc: david.marchand@redhat.com > Cc: stable@dpdk.org > > Signed-off-by: Stephen Hemminger > --- > lib/vhost/virtio_net.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/lib/vhost/virtio_net.c b/lib/vhost/virtio_net.c > index 298a5dae74..d764d4bc6a 100644 > --- a/lib/vhost/virtio_net.c > +++ b/lib/vhost/virtio_net.c > @@ -2538,7 +2538,7 @@ virtio_dev_rx_async_submit(struct virtio_net *dev, struct vhost_virtqueue *vq, > > if (unlikely(!vq->access_ok)) { > vhost_user_iotlb_rd_unlock(vq); > - rte_rwlock_read_unlock(&vq->access_lock); > + rte_rwlock_write_unlock(&vq->access_lock); > > virtio_dev_vring_translate(dev, vq); > goto out_no_unlock; Applied to dpdk-next-virtio/for-main with suggested title change. Thanks, Maxime