From: Simon Baatz <[email protected]> Setting the SO_RCVLOWAT socket option may raise the receive window clamp. Currently this is done by assigning to window_clamp directly.
Use the tcp_set_window_clamp() helper instead, so that raising the clamp is subject to the same constraints and rcv_ssthresh adjustments as TCP_WINDOW_CLAMP. Signed-off-by: Simon Baatz <[email protected]> --- net/ipv4/tcp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index bd03c99f793ae..567027bc86b3f 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1853,7 +1853,7 @@ int tcp_set_rcvlowat(struct sock *sk, int val) WRITE_ONCE(sk->sk_rcvbuf, space); if (tp->window_clamp && tp->window_clamp < val) - WRITE_ONCE(tp->window_clamp, val); + tcp_set_window_clamp(sk, val); } return 0; } -- 2.53.0
