tcp: Move timestamps from inetpeer to metrics cache.

With help from Lin Ming.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 46 deletions

diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 72b7c63b1a39..a51aa534dab1 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -49,52 +49,6 @@ struct inet_timewait_death_row tcp_death_row = {
 };
 EXPORT_SYMBOL_GPL(tcp_death_row);
 
-/* VJ's idea. Save last timestamp seen from this destination
- * and hold it at least for normal timewait interval to use for duplicate
- * segment detection in subsequent connections, before they enter synchronized
- * state.
- */
-
-static bool tcp_remember_stamp(struct sock *sk)
-{
-        const struct inet_connection_sock *icsk = inet_csk(sk);
-        struct tcp_sock *tp = tcp_sk(sk);
-        struct inet_peer *peer;
-
-        peer = icsk->icsk_af_ops->get_peer(sk);
-        if (peer) {
-                if ((s32)(peer->tcp_ts - tp->rx_opt.ts_recent) <= 0 ||
-                    ((u32)get_seconds() - peer->tcp_ts_stamp > TCP_PAWS_MSL &&
-                     peer->tcp_ts_stamp <= (u32)tp->rx_opt.ts_recent_stamp)) {
-                        peer->tcp_ts_stamp = (u32)tp->rx_opt.ts_recent_stamp;
-                        peer->tcp_ts = tp->rx_opt.ts_recent;
-                }
-                return true;
-        }
-
-        return false;
-}
-
-static bool tcp_tw_remember_stamp(struct inet_timewait_sock *tw)
-{
-        const struct tcp_timewait_sock *tcptw;
-        struct sock *sk = (struct sock *) tw;
-        struct inet_peer *peer;
-
-        tcptw = tcp_twsk(sk);
-        peer = tcptw->tw_peer;
-        if (peer) {
-                if ((s32)(peer->tcp_ts - tcptw->tw_ts_recent) <= 0 ||
-                    ((u32)get_seconds() - peer->tcp_ts_stamp > TCP_PAWS_MSL &&
-                     peer->tcp_ts_stamp <= (u32)tcptw->tw_ts_recent_stamp)) {
-                        peer->tcp_ts_stamp = (u32)tcptw->tw_ts_recent_stamp;
-                        peer->tcp_ts       = tcptw->tw_ts_recent;
-                }
-                return true;
-        }
-        return false;
-}
-
 static bool tcp_in_window(u32 seq, u32 end_seq, u32 s_win, u32 e_win)
 {
         if (seq == s_win)