diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 2de9cf4..1888169 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -339,6 +339,9 @@
 	u32	rcv_tstamp;	/* timestamp of last received ACK (for keepalives) */
 	u32	lsndtime;	/* timestamp of last sent data packet (for restart window) */
 
+	struct list_head tsq_node; /* anchor in tsq_tasklet.head list */
+	unsigned long	tsq_flags;
+
 	/* Data for direct copy to user */
 	struct {
 		struct sk_buff_head	prequeue;
@@ -494,6 +497,12 @@
 	struct tcp_cookie_values  *cookie_values;
 };
 
+enum tsq_flags {
+	TSQ_THROTTLED,
+	TSQ_QUEUED,
+	TSQ_OWNED, /* tcp_tasklet_func() found socket was locked */
+};
+
 static inline struct tcp_sock *tcp_sk(const struct sock *sk)
 {
 	return (struct tcp_sock *)sk;