tcp: TCP Small Queues

[firefly-linux-kernel-4.4.55.git] / include / linux / tcp.h

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 2de9cf46f9fc74966a8876102bebd89a01852a7d..1888169e07c72bb13a24ed1b3a018bf570ec2cb3 100644 (file)
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -339,6 +339,9 @@ struct tcp_sock {
        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_sock {
        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;