1 files changed, 12 insertions, 0 deletions

diff --git a/include/net/sock.h b/include/net/sock.h
index 6767d75ecb17..7789b59c0c40 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -273,6 +273,7 @@ struct cg_proto;
   *     @sk_rcvtimeo: %SO_RCVTIMEO setting
   *     @sk_sndtimeo: %SO_SNDTIMEO setting
   *     @sk_rxhash: flow hash received from netif layer
+  *     @sk_incoming_cpu: record cpu processing incoming packets
   *     @sk_txhash: computed flow hash for use on transmit
   *     @sk_filter: socket filtering instructions
   *     @sk_protinfo: private area, net family specific, when not using slab
@@ -350,6 +351,12 @@ struct sock {
 #ifdef CONFIG_RPS
         __u32                   sk_rxhash;
 #endif
+        u16                     sk_incoming_cpu;
+        /* 16bit hole
+         * Warned : sk_incoming_cpu can be set from softirq,
+         * Do not use this hole without fully understanding possible issues.
+         */
+
         __u32                   sk_txhash;
 #ifdef CONFIG_NET_RX_BUSY_POLL
         unsigned int            sk_napi_id;
@@ -833,6 +840,11 @@ static inline int sk_backlog_rcv(struct sock *sk, struct sk_buff *skb)
         return sk->sk_backlog_rcv(sk, skb);
 }
 
+static inline void sk_incoming_cpu_update(struct sock *sk)
+{
+        sk->sk_incoming_cpu = raw_smp_processor_id();
+}
+
 static inline void sock_rps_record_flow_hash(__u32 hash)
 {
 #ifdef CONFIG_RPS