From: Shan Wei <davidshan@tencent.com>
Date: Fri, 16 Nov 2012 21:21:36 +0000 (-0800)
Subject: datapath: use this_cpu_ptr per-cpu helper
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=70dbc259b83796688dcef8593eff5f74f7e36aa1;p=openvswitch

datapath: use this_cpu_ptr per-cpu helper

just use more faster this_cpu_ptr instead of per_cpu_ptr(p, smp_processor_id());

Signed-off-by: Shan Wei <davidshan@tencent.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---

diff --git a/datapath/datapath.c b/datapath/datapath.c
index e359ac03..ade9de53 100644
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -309,7 +309,7 @@ void ovs_dp_process_received_packet(struct vport *p, struct sk_buff *skb)
 	u64 *stats_counter;
 	int error;
 
-	stats = per_cpu_ptr(dp->stats_percpu, smp_processor_id());
+	stats = this_cpu_ptr(dp->stats_percpu);
 
 	if (!OVS_CB(skb)->flow) {
 		struct sw_flow_key key;
@@ -391,7 +391,7 @@ int ovs_dp_upcall(struct datapath *dp, struct sk_buff *skb,
 	return 0;
 
 err:
-	stats = per_cpu_ptr(dp->stats_percpu, smp_processor_id());
+	stats = this_cpu_ptr(dp->stats_percpu);
 
 	u64_stats_update_begin(&stats->sync);
 	stats->n_lost++;
diff --git a/datapath/vport.c b/datapath/vport.c
index bb2bd27c..4934ac1f 100644
--- a/datapath/vport.c
+++ b/datapath/vport.c
@@ -453,8 +453,7 @@ void ovs_vport_receive(struct vport *vport, struct sk_buff *skb)
 {
 	struct vport_percpu_stats *stats;
 
-	stats = per_cpu_ptr(vport->percpu_stats, smp_processor_id());
-
+	stats = this_cpu_ptr(vport->percpu_stats);
 	u64_stats_update_begin(&stats->sync);
 	stats->rx_packets++;
 	stats->rx_bytes += skb->len;
@@ -485,7 +484,7 @@ int ovs_vport_send(struct vport *vport, struct sk_buff *skb)
 	if (likely(sent)) {
 		struct vport_percpu_stats *stats;
 
-		stats = per_cpu_ptr(vport->percpu_stats, smp_processor_id());
+		stats = this_cpu_ptr(vport->percpu_stats);
 
 		u64_stats_update_begin(&stats->sync);
 		stats->tx_packets++;