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-rw-r--r--net/ipv4/tcp_cong.c20
1 files changed, 0 insertions, 20 deletions
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index 2b9464c93b88..a93b41ba05ff 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -276,26 +276,6 @@ int tcp_set_congestion_control(struct sock *sk, const char *name)
276 return err; 276 return err;
277} 277}
278 278
279/* RFC2861 Check whether we are limited by application or congestion window
280 * This is the inverse of cwnd check in tcp_tso_should_defer
281 */
282bool tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight)
283{
284 const struct tcp_sock *tp = tcp_sk(sk);
285 u32 left;
286
287 if (in_flight >= tp->snd_cwnd)
288 return true;
289
290 left = tp->snd_cwnd - in_flight;
291 if (sk_can_gso(sk) &&
292 left * sysctl_tcp_tso_win_divisor < tp->snd_cwnd &&
293 left < tp->xmit_size_goal_segs)
294 return true;
295 return left <= tcp_max_tso_deferred_mss(tp);
296}
297EXPORT_SYMBOL_GPL(tcp_is_cwnd_limited);
298
299/* Slow start is used when congestion window is no greater than the slow start 279/* Slow start is used when congestion window is no greater than the slow start
300 * threshold. We base on RFC2581 and also handle stretch ACKs properly. 280 * threshold. We base on RFC2581 and also handle stretch ACKs properly.
301 * We do not implement RFC3465 Appropriate Byte Counting (ABC) per se but 281 * We do not implement RFC3465 Appropriate Byte Counting (ABC) per se but