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rxrpc: Add a tracepoint for the call timer

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Add a tracepoint to log call timer initiation, setting and expiry.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2016-09-23 15:22:36 +01:00
parent b86e218e0d
commit fc7ab6d29a
6 changed files with 65 additions and 7 deletions
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7
net/rxrpc/call_event.c
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@@ -24,7 +24,7 @@
/*
* Set the timer
*/
void rxrpc_set_timer(struct rxrpc_call *call)
void rxrpc_set_timer(struct rxrpc_call *call, enum rxrpc_timer_trace why)
{
unsigned long t, now = jiffies;
@@ -45,6 +45,7 @@ void rxrpc_set_timer(struct rxrpc_call *call)
if (call->timer.expires != t || !timer_pending(&call->timer)) {
mod_timer(&call->timer, t);
trace_rxrpc_timer(call, why, now);
}
}
@@ -120,7 +121,7 @@ static void __rxrpc_propose_ACK(struct rxrpc_call *call, u8 ack_reason,
_debug("deferred ACK %ld < %ld", expiry, call->ack_at - now);
if (time_before(ack_at, call->ack_at)) {
call->ack_at = ack_at;
rxrpc_set_timer(call);
rxrpc_set_timer(call, rxrpc_timer_set_for_ack);
}
}
}
@@ -293,7 +294,7 @@ recheck_state:
goto recheck_state;
}
rxrpc_set_timer(call);
rxrpc_set_timer(call, rxrpc_timer_set_for_resend);
/* other events may have been raised since we started checking */
if (call->events && call->state < RXRPC_CALL_COMPLETE) {