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rxrpc: Reinitialise the call ACK and timer state for client reply phase

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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>
This commit is contained in:
David Howells 2016-09-24 18:05:27 +01:00
parent b69d94d799
commit dd7c1ee59a
3 changed files with 11 additions and 0 deletions
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1
net/rxrpc/ar-internal.h
View File

@ -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,

9
net/rxrpc/input.c
View File

@ -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)) {

1
net/rxrpc/misc.c
View File

@ -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",