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Diffstat (limited to 'net/ipv4/tcp_input.c')
-rw-r--r--net/ipv4/tcp_input.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 4e4d6bcd0ca9..0abca2841de2 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3332,6 +3332,9 @@ static int tcp_ack_update_window(struct sock *sk, const struct sk_buff *skb, u32
tp->pred_flags = 0;
tcp_fast_path_check(sk);
+ if (tcp_send_head(sk))
+ tcp_slow_start_after_idle_check(sk);
+
if (nwin > tp->max_window) {
tp->max_window = nwin;
tcp_sync_mss(sk, inet_csk(sk)->icsk_pmtu_cookie);