1 files changed, 8 insertions, 2 deletions

diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index 9c0dd8aa3117..ddcebc53224f 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -159,12 +159,18 @@ struct sw_flow {
         struct rcu_head rcu;
         struct hlist_node hash_node[2];
         u32 hash;
-
+        int stats_last_writer;          /* NUMA-node id of the last writer on
+                                         * 'stats[0]'.
+                                         */
         struct sw_flow_key key;
         struct sw_flow_key unmasked_key;
         struct sw_flow_mask *mask;
         struct sw_flow_actions __rcu *sf_acts;
-        struct flow_stats __percpu *stats;
+        struct flow_stats __rcu *stats[]; /* One for each NUMA node.  First one
+                                           * is allocated at flow creation time,
+                                           * the rest are allocated on demand
+                                           * while holding the 'stats[0].lock'.
+                                           */
 };
 
 struct arp_eth_header {