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authorEric Dumazet <edumazet@google.com>2025-07-11 11:40:02 +0000
committerJakub Kicinski <kuba@kernel.org>2025-07-14 18:41:43 -0700
commit38d7e444336567bae1c7b21fc18b7ceaaa5643a0 (patch)
tree9e4173c74b59d94d6b1f8a86333c8d9ae67ef132 /net/ipv4/tcp_input.c
parentf5fda1a86884cf20d9b5842221b963bb16bcebf1 (diff)
tcp: call tcp_measure_rcv_mss() for ooo packets
tcp_measure_rcv_mss() is used to update icsk->icsk_ack.rcv_mss (tcpi_rcv_mss in tcp_info) and tp->scaling_ratio. Calling it from tcp_data_queue_ofo() makes sure these fields are updated, and permits a better tuning of sk->sk_rcvbuf, in the case a new flow receives many ooo packets. Fixes: dfa2f0483360 ("tcp: get rid of sysctl_tcp_adv_win_scale") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250711114006.480026-5-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_input.c')
-rw-r--r--net/ipv4/tcp_input.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 5e2d82c273e2..78da05933078 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -4923,6 +4923,7 @@ static void tcp_data_queue_ofo(struct sock *sk, struct sk_buff *skb)
return;
}
+ tcp_measure_rcv_mss(sk, skb);
/* Disable header prediction. */
tp->pred_flags = 0;
inet_csk_schedule_ack(sk);