Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

[linux.git] / net / ipv4 / tcp_input.c

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 9739962bfb3fd2d39cb13f643def223f4f17fcb6..174d4376baa5374c11caecc0e0452fa938d63561 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -85,7 +85,6 @@ int sysctl_tcp_dsack __read_mostly = 1;
 int sysctl_tcp_app_win __read_mostly = 31;
 int sysctl_tcp_adv_win_scale __read_mostly = 1;
 EXPORT_SYMBOL(sysctl_tcp_adv_win_scale);
-EXPORT_SYMBOL(sysctl_tcp_timestamps);
 
 /* rfc5961 challenge ack rate limiting */
 int sysctl_tcp_challenge_ack_limit = 1000;
@@ -1180,13 +1179,14 @@ static int tcp_match_skb_to_sack(struct sock *sk, struct sk_buff *skb,
                 */
                if (pkt_len > mss) {
                        unsigned int new_len = (pkt_len / mss) * mss;
-                       if (!in_sack && new_len < pkt_len) {
+                       if (!in_sack && new_len < pkt_len)
                                new_len += mss;
-                               if (new_len >= skb->len)
-                                       return 0;
-                       }
                        pkt_len = new_len;
                }
+
+               if (pkt_len >= skb->len && !in_sack)
+                       return 0;
+
                err = tcp_fragment(sk, skb, pkt_len, mss, GFP_ATOMIC);
                if (err < 0)
                        return err;
@@ -3190,7 +3190,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
                        int delta;
 
                        /* Non-retransmitted hole got filled? That's reordering */
-                       if (reord < prior_fackets)
+                       if (reord < prior_fackets && reord <= tp->fackets_out)
                                tcp_update_reordering(sk, tp->fackets_out - reord, 0);
 
                        delta = tcp_is_fack(tp) ? pkts_acked :
@@ -6347,8 +6347,8 @@ int tcp_conn_request(struct request_sock_ops *rsk_ops,
        if (security_inet_conn_request(sk, skb, req))
                goto drop_and_free;
 
-       if (isn && tmp_opt.tstamp_ok)
-               af_ops->init_seq_tsoff(skb, &tcp_rsk(req)->ts_off);
+       if (tmp_opt.tstamp_ok)
+               tcp_rsk(req)->ts_off = af_ops->init_ts_off(skb);
 
        if (!want_cookie && !isn) {
                /* Kill the following clause, if you dislike this way. */
@@ -6368,7 +6368,7 @@ int tcp_conn_request(struct request_sock_ops *rsk_ops,
                        goto drop_and_release;
                }
 
-               isn = af_ops->init_seq_tsoff(skb, &tcp_rsk(req)->ts_off);
+               isn = af_ops->init_seq(skb);
        }
        if (!dst) {
                dst = af_ops->route_req(sk, &fl, req);
@@ -6380,7 +6380,6 @@ int tcp_conn_request(struct request_sock_ops *rsk_ops,
 
        if (want_cookie) {
                isn = cookie_init_sequence(af_ops, sk, skb, &req->mss);
-               tcp_rsk(req)->ts_off = 0;
                req->cookie_ts = tmp_opt.tstamp_ok;
                if (!tmp_opt.tstamp_ok)
                        inet_rsk(req)->ecn_ok = 0;