From: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Date: Tue, 18 Jul 2017 06:28:05 +0000 (-0700)
Subject: openvswitch: Optimize updating for OvS flow_stats.
X-Git-Tag: v5.15~10516^2~483
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c57c054eb5b1ccf230c49f736f7a018fcbc3e952;p=platform%2Fkernel%2Flinux-starfive.git

openvswitch: Optimize updating for OvS flow_stats.

In the ovs_flow_stats_update(), we only use the node
var to alloc flow_stats struct. But this is not a
common case, it is unnecessary to call the numa_node_id()
everytime. This patch is not a bugfix, but there maybe
a small increase.

Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 597d96f..6ef51e7 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -72,7 +72,6 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 tcp_flags,
 			   const struct sk_buff *skb)
 {
 	struct flow_stats *stats;
-	int node = numa_node_id();
 	int cpu = smp_processor_id();
 	int len = skb->len + (skb_vlan_tag_present(skb) ? VLAN_HLEN : 0);
 
@@ -108,7 +107,7 @@ void ovs_flow_stats_update(struct sw_flow *flow, __be16 tcp_flags,
 							      __GFP_THISNODE |
 							      __GFP_NOWARN |
 							      __GFP_NOMEMALLOC,
-							      node);
+							      numa_node_id());
 				if (likely(new_stats)) {
 					new_stats->used = jiffies;
 					new_stats->packet_count = 1;