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[2a03:2880:30ff:78::face:b00c]) by smtp.gmail.com with ESMTPSA id fj14-20020a1709069c8e00b00a3f64663fe8sm1895858ejc.200.2024.02.23.03.58.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Feb 2024 03:58:48 -0800 (PST) From: Breno Leitao To: kuba@kernel.org, davem@davemloft.net, pabeni@redhat.com, edumazet@google.com, Stefano Garzarella Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, horms@kernel.org, virtualization@lists.linux.dev (open list:VM SOCKETS (AF_VSOCK)) Subject: [PATCH net-next 1/2] net/vsockmon: Leverage core stats allocator Date: Fri, 23 Feb 2024 03:58:37 -0800 Message-Id: <20240223115839.3572852-1-leitao@debian.org> X-Mailer: git-send-email 2.39.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791690853182326087 X-GMAIL-MSGID: 1791690853182326087 With commit 34d21de99cea9 ("net: Move {l,t,d}stats allocation to core and convert veth & vrf"), stats allocation could be done on net core instead of this driver. With this new approach, the driver doesn't have to bother with error handling (allocation failure checking, making sure free happens in the right spot, etc). This is core responsibility now. Remove the allocation in the vsockmon driver and leverage the network core allocation instead. Signed-off-by: Breno Leitao Reviewed-by: Eric Dumazet Reviewed-by: Stefano Garzarella --- drivers/net/vsockmon.c | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) diff --git a/drivers/net/vsockmon.c b/drivers/net/vsockmon.c index b1bb1b04b664..a0b4dca36baf 100644 --- a/drivers/net/vsockmon.c +++ b/drivers/net/vsockmon.c @@ -13,19 +13,6 @@ #define DEFAULT_MTU (VIRTIO_VSOCK_MAX_PKT_BUF_SIZE + \ sizeof(struct af_vsockmon_hdr)) -static int vsockmon_dev_init(struct net_device *dev) -{ - dev->lstats = netdev_alloc_pcpu_stats(struct pcpu_lstats); - if (!dev->lstats) - return -ENOMEM; - return 0; -} - -static void vsockmon_dev_uninit(struct net_device *dev) -{ - free_percpu(dev->lstats); -} - struct vsockmon { struct vsock_tap vt; }; @@ -79,8 +66,6 @@ static int vsockmon_change_mtu(struct net_device *dev, int new_mtu) } static const struct net_device_ops vsockmon_ops = { - .ndo_init = vsockmon_dev_init, - .ndo_uninit = vsockmon_dev_uninit, .ndo_open = vsockmon_open, .ndo_stop = vsockmon_close, .ndo_start_xmit = vsockmon_xmit, @@ -112,6 +97,7 @@ static void vsockmon_setup(struct net_device *dev) dev->flags = IFF_NOARP; dev->mtu = DEFAULT_MTU; + dev->pcpu_stat_type = NETDEV_PCPU_STAT_LSTATS; } static struct rtnl_link_ops vsockmon_link_ops __read_mostly = { From patchwork Fri Feb 23 11:58:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Breno Leitao X-Patchwork-Id: 205349 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:a81b:b0:108:e6aa:91d0 with SMTP id bq27csp532098dyb; Fri, 23 Feb 2024 03:59:23 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCVhDRupXyMxxZ/Sg8agz6YIBoxVFd1oCAH905R+ha4k7kdnJiDlulocVJtZ/kDDuKTcNxqR5m9zVOUJcuU8J2NO3BW/8g== X-Google-Smtp-Source: AGHT+IHEXMtsXX9/FoVO6a8TZmfaDmNlzV7TVZhQ5pKpekrj0idPNxchodw1TAA90ckHz6yxQy6D X-Received: by 2002:a17:906:8310:b0:a3f:e604:ed42 with SMTP id j16-20020a170906831000b00a3fe604ed42mr669904ejx.54.1708689563626; Fri, 23 Feb 2024 03:59:23 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1708689563; cv=pass; d=google.com; s=arc-20160816; b=jtGaIGpC8VdnknSNuxH3WL7afQWJXree5i6IbVLNlA7SiOkbK0bhKMwQgXmjVUbjXI LuX1OuEy5Q78zmfcA/tA1eJvpAW0B0FsF4s8pkFJscw3oMVmLwEaSYGHpIwgi9AnB70p PftGR+QeCSAMWg4hYEovBk/md7L2R1H/mz8NRzUx6M6jfe3E0zp/4hUUAk0xgSkscOle ISjNjU8lcOiDmavW5nalr+bC3YL0zkNLS9A3Na0fZlI0d82WjNndD2MDY1x8aEuOEyMy Z94j/aBlH7b1bjUz8KWALtwm6lJwpaJYcYSQMIXiNTbOJGx/dBYjtpFEMKQq3UktUfaX J96g== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from; bh=4PMOZ8U66vdID9xvLYzabHLRBd9NskjEvwGqh7mLj5M=; fh=PMmzyq0+I8o9lcvrr/qHSQ02kBZDCDp0LFvXt9osHg4=; b=vOlZXesdWFPsLW6pVHHzlW/ZQmRMdzeFXyr/huKzOu9tLKYPMUwkViHjmK3RNszhHq iF/5pFNfUk6K4yaS5RDhtHewt3vkdh8JuueSJ3OCxFbOGzJpflTDt5BUvZUWJjHfs/Pk tC/JUJ6HQErWNfF54ZllEoP2edHEgisGSQsEEx3IE5DeYJqlRMiKrjStxA6deORIp4jv X9ErY92RzPtZR01fcgfYbjiHsafYSyp87iBZkv7ccynSxzHdDDyyjnrZItNu8kTgdgJC 34kWX/Jv6NXf3s8XazCEIT3YyMf8SPfZ2WZsZZvDIgK7ORY2NbEVtalHZslR4mRf01DF 5joQ==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; arc=pass (i=1 spf=pass spfdomain=gmail.com); spf=pass (google.com: domain of linux-kernel+bounces-78261-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:4601:e00::3 as permitted sender) smtp.mailfrom="linux-kernel+bounces-78261-ouuuleilei=gmail.com@vger.kernel.org" Received: from am.mirrors.kernel.org (am.mirrors.kernel.org. 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[2a03:2880:30ff:4::face:b00c]) by smtp.gmail.com with ESMTPSA id pv14-20020a170907208e00b00a3f45b80559sm2346956ejb.139.2024.02.23.03.58.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Feb 2024 03:58:50 -0800 (PST) From: Breno Leitao To: kuba@kernel.org, davem@davemloft.net, pabeni@redhat.com, edumazet@google.com, Stefano Garzarella Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, horms@kernel.org, virtualization@lists.linux.dev (open list:VM SOCKETS (AF_VSOCK)) Subject: [PATCH net-next 2/2] net/vsockmon: Do not set zeroed statistics Date: Fri, 23 Feb 2024 03:58:38 -0800 Message-Id: <20240223115839.3572852-2-leitao@debian.org> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20240223115839.3572852-1-leitao@debian.org> References: <20240223115839.3572852-1-leitao@debian.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791690867378700275 X-GMAIL-MSGID: 1791690867378700275 Do not set rtnl_link_stats64 fields to zero, since they are zeroed before ops->ndo_get_stats64 is called in core dev_get_stats() function. Signed-off-by: Breno Leitao Reviewed-by: Eric Dumazet Reviewed-by: Stefano Garzarella Reviewed-by: Jason Xing --- drivers/net/vsockmon.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/net/vsockmon.c b/drivers/net/vsockmon.c index a0b4dca36baf..a1ba5169ed5d 100644 --- a/drivers/net/vsockmon.c +++ b/drivers/net/vsockmon.c @@ -46,9 +46,6 @@ static void vsockmon_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) { dev_lstats_read(dev, &stats->rx_packets, &stats->rx_bytes); - - stats->tx_packets = 0; - stats->tx_bytes = 0; } static int vsockmon_is_valid_mtu(int new_mtu)