Thread (18 messages) 18 messages, 3 authors, 2020-10-14

[PATCH net-next v2 11/12] net: openvswitch: use new function dev_fetch_sw_netstats

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STALE2205d LANDED

From: Heiner Kallweit <hkallweit1@gmail.com>
Date: 2020-10-12 08:22:37
Also in: bridge, linux-rdma, linux-usb, netdev
Subsystem: networking [general], openvswitch, the rest · Maintainers: "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Aaron Conole, Eelco Chaudron, Ilya Maximets, Linus Torvalds

Status: Landed in mainline as 3569939a811e on 2020-10-14.

Revision v2 (2 revisions archived).

Revisions (2)
  1. v1
  2. v2 current [diff against previous]
Simplify the code by using new function dev_fetch_sw_netstats().

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 net/openvswitch/vport-internal_dev.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index d8fe66eea..1e30d8df3 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -86,31 +86,13 @@ static void internal_dev_destructor(struct net_device *dev)
 static void
 internal_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
 {
-	int i;
-
 	memset(stats, 0, sizeof(*stats));
 	stats->rx_errors  = dev->stats.rx_errors;
 	stats->tx_errors  = dev->stats.tx_errors;
 	stats->tx_dropped = dev->stats.tx_dropped;
 	stats->rx_dropped = dev->stats.rx_dropped;
 
-	for_each_possible_cpu(i) {
-		const struct pcpu_sw_netstats *percpu_stats;
-		struct pcpu_sw_netstats local_stats;
-		unsigned int start;
-
-		percpu_stats = per_cpu_ptr(dev->tstats, i);
-
-		do {
-			start = u64_stats_fetch_begin_irq(&percpu_stats->syncp);
-			local_stats = *percpu_stats;
-		} while (u64_stats_fetch_retry_irq(&percpu_stats->syncp, start));
-
-		stats->rx_bytes         += local_stats.rx_bytes;
-		stats->rx_packets       += local_stats.rx_packets;
-		stats->tx_bytes         += local_stats.tx_bytes;
-		stats->tx_packets       += local_stats.tx_packets;
-	}
+	dev_fetch_sw_netstats(stats, dev->tstats);
 }
 
 static const struct net_device_ops internal_dev_netdev_ops = {
-- 
2.28.0

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