2 files changed, 7 insertions, 2 deletions

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 29e3d606db7..66e9a729f6d 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -955,8 +955,11 @@ void tcp_cleanup_rbuf(struct sock *sk, int copied)
                      * receive buffer and there was a small segment
                      * in queue.
                      */
-                    (copied > 0 && (icsk->icsk_ack.pending & ICSK_ACK_PUSHED) &&
-                     !icsk->icsk_ack.pingpong && !atomic_read(&sk->sk_rmem_alloc)))
+                    (copied > 0 &&
+                     ((icsk->icsk_ack.pending & ICSK_ACK_PUSHED2) ||
+                      ((icsk->icsk_ack.pending & ICSK_ACK_PUSHED) &&
+                       !icsk->icsk_ack.pingpong)) &&
+                      !atomic_read(&sk->sk_rmem_alloc)))
                         time_to_ack = 1;
         }
 
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 511b738f118..b3def0df14f 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -156,6 +156,8 @@ static void tcp_measure_rcv_mss(struct sock *sk,
                                 return;
                         }
                 }
+                if (icsk->icsk_ack.pending & ICSK_ACK_PUSHED)
+                        icsk->icsk_ack.pending |= ICSK_ACK_PUSHED2;
                 icsk->icsk_ack.pending |= ICSK_ACK_PUSHED;
         }
 }