Messages in this thread Patch in this message |  | | From | Yafang Shao <> | Subject | [PATCH net-next] inet: do not set backlog if listen fails | Date | Wed, 3 Oct 2018 23:07:59 +0800 |
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These two backlog members are not necessary set in inet_csk_listen_start(). Regarding sk_max_ack_backlog, it will be set in the caller inet_listen and dccp_listen_start. Regraing sk_ack_backlog, it is better to put it together with sk_max_ack_backlog in the same function and only set on success.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com> --- net/dccp/proto.c | 1 + net/ipv4/af_inet.c | 1 + net/ipv4/inet_connection_sock.c | 3 --- 3 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/net/dccp/proto.c b/net/dccp/proto.c index 875858c..34d48cd 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -959,6 +959,7 @@ int inet_dccp_listen(struct socket *sock, int backlog) err = dccp_listen_start(sk, backlog); if (err) goto out; + sk->sk_ack_backlog = 0; } sk->sk_max_ack_backlog = backlog; err = 0; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index 1fbe2f8..9690e0d 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -230,6 +230,7 @@ int inet_listen(struct socket *sock, int backlog) if (err) goto out; tcp_call_bpf(sk, BPF_SOCK_OPS_TCP_LISTEN_CB, 0, NULL); + sk->sk_ack_backlog = 0; } sk->sk_max_ack_backlog = backlog; err = 0; diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index dfd5009..c25d0b3 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -870,9 +870,6 @@ int inet_csk_listen_start(struct sock *sk, int backlog) int err = -EADDRINUSE; reqsk_queue_alloc(&icsk->icsk_accept_queue); - - sk->sk_max_ack_backlog = backlog; - sk->sk_ack_backlog = 0; inet_csk_delack_init(sk); /* There is race window here: we announce ourselves listening, -- 1.8.3.1
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