1 files changed, 6 insertions, 0 deletions

diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index d694088214cd..62856e185a93 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -378,6 +378,12 @@ EXPORT_SYMBOL_GPL(tcp_slow_start);
  */
 void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w, u32 acked)
 {
+        /* If credits accumulated at a higher w, apply them gently now. */
+        if (tp->snd_cwnd_cnt >= w) {
+                tp->snd_cwnd_cnt = 0;
+                tp->snd_cwnd++;
+        }
+
         tp->snd_cwnd_cnt += acked;
         if (tp->snd_cwnd_cnt >= w) {
                 u32 delta = tp->snd_cwnd_cnt / w;