[PATCH 4/9] net: openvswitch: use this_cpu_ptr per-cpu helper

[Shan Wei]

From: Shan Wei <davids...@tencent.com>

no change vs v1.

Lots of drivers use this kind to read/write per-cpu variable.
stats = this_cpu_ptr(dp->stats_percpu);
u64_stats_update_begin(&stats->sync);
                stats->tx_packets++;
u64_stats_update_begin(&stats->sync);


Signed-off-by: Shan Wei <davids...@tencent.com>
---
 net/openvswitch/datapath.c |    4 ++--
 net/openvswitch/vport.c    |    5 ++---
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 4c4b62c..77d16a5 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -208,7 +208,7 @@ void ovs_dp_process_received_packet(struct vport *p, struct 
sk_buff *skb)
        int error;
        int key_len;
 
-       stats = per_cpu_ptr(dp->stats_percpu, smp_processor_id());
+       stats = this_cpu_ptr(dp->stats_percpu);
 
        /* Extract flow from 'skb' into 'key'. */
        error = ovs_flow_extract(skb, p->port_no, &key, &key_len);
@@ -282,7 +282,7 @@ 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/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 03779e8..70af0be 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -333,8 +333,7 @@ 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;
@@ -359,7 +358,7 @@ 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++;
-- 
1.7.1

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