From: Paolo Abeni pabeni@redhat.com
The msk socket uses to different timeout to track close related events and retransmissions. The existing helpers do not indicate clearly which timer they actually touch, making the related code quite confusing.
Change the existing helpers name to avoid such confusion. No functional change intended.
This patch is linked to the next one ("mptcp: fix dangling connection hang-up"). The two patches are supposed to be backported together.
Cc: stable@vger.kernel.org # v5.11+ Signed-off-by: Paolo Abeni pabeni@redhat.com Reviewed-by: Matthieu Baerts matthieu.baerts@tessares.net Reviewed-by: Mat Martineau martineau@kernel.org Signed-off-by: Matthieu Baerts matthieu.baerts@tessares.net Signed-off-by: David S. Miller davem@davemloft.net (cherry picked from commit f6909dc1c1f4452879278128012da6c76bc186a5) Signed-off-by: Matthieu Baerts (NGI0) matttbe@kernel.org --- Notes: - A few conflicts, e.g. because 76a13b315709 ("mptcp: invoke MP_FAIL response when needed") is not in v5.15. The renames have been redone from scratch. --- net/mptcp/protocol.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 47844df9c0b4c..4b4720872f557 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -330,7 +330,7 @@ static bool __mptcp_move_skb(struct mptcp_sock *msk, struct sock *ssk, return false; }
-static void mptcp_stop_timer(struct sock *sk) +static void mptcp_stop_rtx_timer(struct sock *sk) { struct inet_connection_sock *icsk = inet_csk(sk);
@@ -830,12 +830,12 @@ static void mptcp_flush_join_list(struct mptcp_sock *msk) mptcp_sockopt_sync_all(msk); }
-static bool mptcp_timer_pending(struct sock *sk) +static bool mptcp_rtx_timer_pending(struct sock *sk) { return timer_pending(&inet_csk(sk)->icsk_retransmit_timer); }
-static void mptcp_reset_timer(struct sock *sk) +static void mptcp_reset_rtx_timer(struct sock *sk) { struct inet_connection_sock *icsk = inet_csk(sk); unsigned long tout; @@ -1145,10 +1145,10 @@ static void __mptcp_clean_una(struct sock *sk) __mptcp_mem_reclaim_partial(sk);
if (snd_una == READ_ONCE(msk->snd_nxt) && !msk->recovery) { - if (mptcp_timer_pending(sk) && !mptcp_data_fin_enabled(msk)) - mptcp_stop_timer(sk); + if (mptcp_rtx_timer_pending(sk) && !mptcp_data_fin_enabled(msk)) + mptcp_stop_rtx_timer(sk); } else { - mptcp_reset_timer(sk); + mptcp_reset_rtx_timer(sk); } }
@@ -1640,8 +1640,8 @@ void __mptcp_push_pending(struct sock *sk, unsigned int flags)
out: /* ensure the rtx timer is running */ - if (!mptcp_timer_pending(sk)) - mptcp_reset_timer(sk); + if (!mptcp_rtx_timer_pending(sk)) + mptcp_reset_rtx_timer(sk); if (copied) mptcp_check_send_data_fin(sk); } @@ -1700,8 +1700,8 @@ static void __mptcp_subflow_push_pending(struct sock *sk, struct sock *ssk) if (copied) { tcp_push(ssk, 0, info.mss_now, tcp_sk(ssk)->nonagle, info.size_goal); - if (!mptcp_timer_pending(sk)) - mptcp_reset_timer(sk); + if (!mptcp_rtx_timer_pending(sk)) + mptcp_reset_rtx_timer(sk);
if (msk->snd_data_fin_enable && msk->snd_nxt + 1 == msk->write_seq) @@ -2173,7 +2173,7 @@ static void mptcp_retransmit_timer(struct timer_list *t) sock_put(sk); }
-static void mptcp_timeout_timer(struct timer_list *t) +static void mptcp_tout_timer(struct timer_list *t) { struct sock *sk = from_timer(sk, t, sk_timer);
@@ -2465,8 +2465,8 @@ static void __mptcp_retrans(struct sock *sk) release_sock(ssk);
reset_timer: - if (!mptcp_timer_pending(sk)) - mptcp_reset_timer(sk); + if (!mptcp_rtx_timer_pending(sk)) + mptcp_reset_rtx_timer(sk); }
static void mptcp_worker(struct work_struct *work) @@ -2543,7 +2543,7 @@ static int __mptcp_init_sock(struct sock *sk)
/* re-use the csk retrans timer for MPTCP-level retrans */ timer_setup(&msk->sk.icsk_retransmit_timer, mptcp_retransmit_timer, 0); - timer_setup(&sk->sk_timer, mptcp_timeout_timer, 0); + timer_setup(&sk->sk_timer, mptcp_tout_timer, 0);
return 0; } @@ -2629,8 +2629,8 @@ void mptcp_subflow_shutdown(struct sock *sk, struct sock *ssk, int how) } else { pr_debug("Sending DATA_FIN on subflow %p", ssk); tcp_send_ack(ssk); - if (!mptcp_timer_pending(sk)) - mptcp_reset_timer(sk); + if (!mptcp_rtx_timer_pending(sk)) + mptcp_reset_rtx_timer(sk); } break; }