[PATCH net-next 4/8] rxrpc: Reinitialise the call ACK and timer state for client reply phase
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STALE3678d
From: David Howells <dhowells@redhat.com>
Date: 2016-09-24 23:25:32
Also in:
lkml
Subsystem:
networking [general], rxrpc sockets (af_rxrpc), the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Howells, Marc Dionne, Linus Torvalds
Clear the ACK reason, ACK timer and resend timer when entering the client reply phase when the first DATA packet is received. New ACKs will be proposed once the data is queued. The resend timer is no longer relevant and we need to cancel ACKs scheduled to probe for a lost reply. Signed-off-by: David Howells <dhowells@redhat.com> --- net/rxrpc/ar-internal.h | 1 + net/rxrpc/input.c | 9 +++++++++ net/rxrpc/misc.c | 1 + 3 files changed, 11 insertions(+)
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index e3bf9c0e3ad1..cdd35e2b40ba 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h@@ -682,6 +682,7 @@ extern const char rxrpc_rtt_rx_traces[rxrpc_rtt_rx__nr_trace][5]; enum rxrpc_timer_trace { rxrpc_timer_begin, + rxrpc_timer_init_for_reply, rxrpc_timer_expired, rxrpc_timer_set_for_ack, rxrpc_timer_set_for_resend,
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 757c16f033a0..bda11eb2ab2a 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c@@ -149,6 +149,15 @@ static bool rxrpc_receiving_reply(struct rxrpc_call *call) { rxrpc_seq_t top = READ_ONCE(call->tx_top); + if (call->ackr_reason) { + spin_lock_bh(&call->lock); + call->ackr_reason = 0; + call->resend_at = call->expire_at; + call->ack_at = call->expire_at; + spin_unlock_bh(&call->lock); + rxrpc_set_timer(call, rxrpc_timer_init_for_reply); + } + if (!test_bit(RXRPC_CALL_TX_LAST, &call->flags)) rxrpc_rotate_tx_window(call, top); if (!test_bit(RXRPC_CALL_TX_LAST, &call->flags)) {
diff --git a/net/rxrpc/misc.c b/net/rxrpc/misc.c
index a473fd7dabaa..901c012a2700 100644
--- a/net/rxrpc/misc.c
+++ b/net/rxrpc/misc.c@@ -191,6 +191,7 @@ const char rxrpc_rtt_rx_traces[rxrpc_rtt_rx__nr_trace][5] = { const char rxrpc_timer_traces[rxrpc_timer__nr_trace][8] = { [rxrpc_timer_begin] = "Begin ", [rxrpc_timer_expired] = "*EXPR*", + [rxrpc_timer_init_for_reply] = "IniRpl", [rxrpc_timer_set_for_ack] = "SetAck", [rxrpc_timer_set_for_send] = "SetTx ", [rxrpc_timer_set_for_resend] = "SetRTx",