diff options
Diffstat (limited to 'net/mptcp/options.c')
| -rw-r--r-- | net/mptcp/options.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/net/mptcp/options.c b/net/mptcp/options.c index e8a1adf299d8..e0d21c0607e5 100644 --- a/net/mptcp/options.c +++ b/net/mptcp/options.c @@ -875,10 +875,13 @@ static void ack_update_msk(struct mptcp_sock *msk, new_wnd_end = new_snd_una + tcp_sk(ssk)->snd_wnd; - if (after64(new_wnd_end, msk->wnd_end)) { + if (after64(new_wnd_end, msk->wnd_end)) msk->wnd_end = new_wnd_end; - __mptcp_wnd_updated(sk, ssk); - } + + /* this assumes mptcp_incoming_options() is invoked after tcp_ack() */ + if (after64(msk->wnd_end, READ_ONCE(msk->snd_nxt)) && + sk_stream_memory_free(ssk)) + __mptcp_check_push(sk, ssk); if (after64(new_snd_una, old_snd_una)) { msk->snd_una = new_snd_una; @@ -944,8 +947,8 @@ void mptcp_incoming_options(struct sock *sk, struct sk_buff *skb) * helpers are cheap. */ mptcp_data_lock(subflow->conn); - if (mptcp_send_head(subflow->conn)) - __mptcp_wnd_updated(subflow->conn, sk); + if (sk_stream_memory_free(sk)) + __mptcp_check_push(subflow->conn, sk); __mptcp_data_acked(subflow->conn); mptcp_data_unlock(subflow->conn); return; |