Commit f574f7f8 authored by Gao Feng's avatar Gao Feng Committed by David S. Miller

net: bpf: Use the protocol's set_rcvlowat behavior if there is one

The commit d1361840 ("tcp: fix SO_RCVLOWAT and RCVBUF autotuning")
add one new (struct proto_ops)->set_rcvlowat method so that a protocol
can override the default setsockopt(SO_RCVLOWAT) behavior.

The prior bpf codes don't check and invoke the protos's set_rcvlowat,
now correct it.
Signed-off-by: default avatarGao Feng <gfree.wind@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 7a542bee
......@@ -5063,7 +5063,10 @@ static int __bpf_setsockopt(struct sock *sk, int level, int optname,
case SO_RCVLOWAT:
if (val < 0)
val = INT_MAX;
WRITE_ONCE(sk->sk_rcvlowat, val ? : 1);
if (sk->sk_socket && sk->sk_socket->ops->set_rcvlowat)
ret = sk->sk_socket->ops->set_rcvlowat(sk, val);
else
WRITE_ONCE(sk->sk_rcvlowat, val ? : 1);
break;
case SO_MARK:
if (sk->sk_mark != val) {
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment