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-rw-r--r--include/net/inet_connection_sock.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index 7a431388756..848e85cb5c6 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -62,6 +62,7 @@ struct inet_connection_sock_af_ops {
void (*addr2sockaddr)(struct sock *sk, struct sockaddr *);
int (*bind_conflict)(const struct sock *sk,
const struct inet_bind_bucket *tb, bool relax);
+ void (*mtu_reduced)(struct sock *sk);
};
/** inet_connection_sock - INET connection oriented sock
@@ -241,6 +242,15 @@ static inline void inet_csk_reset_xmit_timer(struct sock *sk, const int what,
#endif
}
+static inline unsigned long
+inet_csk_rto_backoff(const struct inet_connection_sock *icsk,
+ unsigned long max_when)
+{
+ u64 when = (u64)icsk->icsk_rto << icsk->icsk_backoff;
+
+ return (unsigned long)min_t(u64, when, max_when);
+}
+
struct sock *inet_csk_accept(struct sock *sk, int flags, int *err);
struct request_sock *inet_csk_search_req(const struct sock *sk,