Messages in this thread Patch in this message | | | From | Matthieu Baerts <> | Date | Fri, 11 Aug 2023 17:57:20 +0200 | Subject | [PATCH net-next 07/14] mptcp: avoid additional indirection in mptcp_listen() |
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From: Paolo Abeni <pabeni@redhat.com>
We are going to remove the first subflow socket soon, so avoid the additional indirection via at listen() time. Instead call directly the recently introduced helper on the first subflow sock.
No functional changes intended.
Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> --- net/mptcp/protocol.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 5b4d6f0628a7..d8b75fbc4f24 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -3720,6 +3720,7 @@ static int mptcp_listen(struct socket *sock, int backlog) struct mptcp_sock *msk = mptcp_sk(sock->sk); struct sock *sk = sock->sk; struct socket *ssock; + struct sock *ssk; int err; pr_debug("msk=%p", msk); @@ -3736,15 +3737,19 @@ static int mptcp_listen(struct socket *sock, int backlog) goto unlock; } + ssk = msk->first; inet_sk_state_store(sk, TCP_LISTEN); sock_set_flag(sk, SOCK_RCU_FREE); - err = READ_ONCE(ssock->ops)->listen(ssock, backlog); - inet_sk_state_store(sk, inet_sk_state_load(ssock->sk)); + lock_sock(ssk); + err = __inet_listen_sk(ssk, backlog); + release_sock(ssk); + inet_sk_state_store(sk, inet_sk_state_load(ssk)); + if (!err) { sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); - mptcp_copy_inaddrs(sk, ssock->sk); - mptcp_event_pm_listener(ssock->sk, MPTCP_EVENT_LISTENER_CREATED); + mptcp_copy_inaddrs(sk, ssk); + mptcp_event_pm_listener(ssk, MPTCP_EVENT_LISTENER_CREATED); } unlock: -- 2.40.1
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