diff options
| author | Mat Martineau <mathew.j.martineau@linux.intel.com> | 2020-07-28 15:12:02 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-28 17:02:41 -0700 |
| commit | 7279da6145bbb2e41a61def5d9bca5b65f12de9d (patch) | |
| tree | b3b068e7044d9ab91eaca8551713719f5cd574c2 /net/mptcp/protocol.c | |
| parent | 242e63f651e94da5fa3cbe6ae0a62dd219226418 (diff) | |
| download | linux-7279da6145bbb2e41a61def5d9bca5b65f12de9d.tar.bz2 | |
mptcp: Use MPTCP-level flag for sending DATA_FIN
Since DATA_FIN information is the same for every subflow, store it only
in the mptcp_sock.
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp/protocol.c')
| -rw-r--r-- | net/mptcp/protocol.c | 21 |
1 files changed, 5 insertions, 16 deletions
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 7d7e0fa17219..dd403ba3679a 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1391,8 +1391,7 @@ static void mptcp_cancel_work(struct sock *sk) sock_put(sk); } -static void mptcp_subflow_shutdown(struct sock *ssk, int how, - bool data_fin_tx_enable, u64 data_fin_tx_seq) +static void mptcp_subflow_shutdown(struct sock *ssk, int how) { lock_sock(ssk); @@ -1405,14 +1404,6 @@ static void mptcp_subflow_shutdown(struct sock *ssk, int how, tcp_disconnect(ssk, O_NONBLOCK); break; default: - if (data_fin_tx_enable) { - struct mptcp_subflow_context *subflow; - - subflow = mptcp_subflow_ctx(ssk); - subflow->data_fin_tx_seq = data_fin_tx_seq; - subflow->data_fin_tx_enable = 1; - } - ssk->sk_shutdown |= how; tcp_shutdown(ssk, how); break; @@ -1426,7 +1417,6 @@ static void mptcp_close(struct sock *sk, long timeout) struct mptcp_subflow_context *subflow, *tmp; struct mptcp_sock *msk = mptcp_sk(sk); LIST_HEAD(conn_list); - u64 data_fin_tx_seq; lock_sock(sk); @@ -1440,7 +1430,7 @@ static void mptcp_close(struct sock *sk, long timeout) spin_unlock_bh(&msk->join_list_lock); list_splice_init(&msk->conn_list, &conn_list); - data_fin_tx_seq = msk->write_seq; + msk->snd_data_fin_enable = 1; __mptcp_clear_xmit(sk); @@ -1448,9 +1438,6 @@ static void mptcp_close(struct sock *sk, long timeout) list_for_each_entry_safe(subflow, tmp, &conn_list, node) { struct sock *ssk = mptcp_subflow_tcp_sock(subflow); - - subflow->data_fin_tx_seq = data_fin_tx_seq; - subflow->data_fin_tx_enable = 1; __mptcp_close_ssk(sk, ssk, subflow, timeout); } @@ -2146,10 +2133,12 @@ static int mptcp_shutdown(struct socket *sock, int how) } __mptcp_flush_join_list(msk); + msk->snd_data_fin_enable = 1; + mptcp_for_each_subflow(msk, subflow) { struct sock *tcp_sk = mptcp_subflow_tcp_sock(subflow); - mptcp_subflow_shutdown(tcp_sk, how, 1, msk->write_seq); + mptcp_subflow_shutdown(tcp_sk, how); } /* Wake up anyone sleeping in poll. */ |