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[2003:ea:8f23:2800:dc4f:e3f6:2803:90d0]) by smtp.googlemail.com with ESMTPSA id i2sm3358943wmc.28.2020.11.01.04.38.25 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 01 Nov 2020 04:38:25 -0800 (PST) Subject: [PATCH net-next 3/5] ip6_tunnel: use ip_tunnel_get_stats64 as ndo_get_stats64 callback From: Heiner Kallweit To: Jakub Kicinski , David Miller , Alexey Kuznetsov , Hideaki YOSHIFUJI , Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , Russell King Cc: "netdev@vger.kernel.org" References: <25c7e008-c3fb-9fcd-f518-5d36e181c0cb@gmail.com> Message-ID: Date: Sun, 1 Nov 2020 13:36:00 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 MIME-Version: 1.0 In-Reply-To: <25c7e008-c3fb-9fcd-f518-5d36e181c0cb@gmail.com> Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Switch ip6_tunnel to the standard statistics pattern: - use dev->stats for the less frequently accessed counters - use dev->tstats for the frequently accessed counters An additional benefit is that we now have 64bit statistics also on 32bit systems. Signed-off-by: Heiner Kallweit --- net/ipv6/ip6_tunnel.c | 32 +------------------------------- 1 file changed, 1 insertion(+), 31 deletions(-) diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index a0217e5bf..4ba18d9f9 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -94,36 +94,6 @@ static inline int ip6_tnl_mpls_supported(void) return IS_ENABLED(CONFIG_MPLS); } -static struct net_device_stats *ip6_get_stats(struct net_device *dev) -{ - struct pcpu_sw_netstats tmp, sum = { 0 }; - int i; - - for_each_possible_cpu(i) { - unsigned int start; - const struct pcpu_sw_netstats *tstats = - per_cpu_ptr(dev->tstats, i); - - do { - start = u64_stats_fetch_begin_irq(&tstats->syncp); - tmp.rx_packets = tstats->rx_packets; - tmp.rx_bytes = tstats->rx_bytes; - tmp.tx_packets = tstats->tx_packets; - tmp.tx_bytes = tstats->tx_bytes; - } while (u64_stats_fetch_retry_irq(&tstats->syncp, start)); - - sum.rx_packets += tmp.rx_packets; - sum.rx_bytes += tmp.rx_bytes; - sum.tx_packets += tmp.tx_packets; - sum.tx_bytes += tmp.tx_bytes; - } - dev->stats.rx_packets = sum.rx_packets; - dev->stats.rx_bytes = sum.rx_bytes; - dev->stats.tx_packets = sum.tx_packets; - dev->stats.tx_bytes = sum.tx_bytes; - return &dev->stats; -} - #define for_each_ip6_tunnel_rcu(start) \ for (t = rcu_dereference(start); t; t = rcu_dereference(t->next)) @@ -1835,7 +1805,7 @@ static const struct net_device_ops ip6_tnl_netdev_ops = { .ndo_start_xmit = ip6_tnl_start_xmit, .ndo_do_ioctl = ip6_tnl_ioctl, .ndo_change_mtu = ip6_tnl_change_mtu, - .ndo_get_stats = ip6_get_stats, + .ndo_get_stats64 = ip_tunnel_get_stats64, .ndo_get_iflink = ip6_tnl_get_iflink, };