[BLOCK] cfq-iosched: seek and async performance fixes

[~andy/linux] / include / linux / tcp.h

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index f2bb2396853f5319000e70bcb9bf71784e933c18..542d39596bd86f0c7cdc84b58977b4da440590a2 100644 (file)
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -343,6 +343,12 @@ struct tcp_sock {
                __u32   seq;
                __u32   time;
        } rcvq_space;
+
+/* TCP-specific MTU probe information. */
+       struct {
+               __u32             probe_seq_start;
+               __u32             probe_seq_end;
+       } mtu_probe;
 };
 
 static inline struct tcp_sock *tcp_sk(const struct sock *sk)