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rxrpc: Trace call completion 

Add a tracepoint to track rxrpc calls moving into the completed state and
to log the completion type and the recorded error value and abort code.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2018-03-27 23:08:20 +01:00
parent a25e21f0bc
commit 1bae5d2295
2 changed files with 34 additions and 0 deletions
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33
include/trace/events/rxrpc.h
View File

@ -400,6 +400,13 @@ enum rxrpc_congest_change {
EM(RXRPC_ACK_IDLE, "IDL") \
E_(RXRPC_ACK__INVALID, "-?-")
#define rxrpc_completions \
EM(RXRPC_CALL_SUCCEEDED, "Succeeded") \
EM(RXRPC_CALL_REMOTELY_ABORTED, "RemoteAbort") \
EM(RXRPC_CALL_LOCALLY_ABORTED, "LocalAbort") \
EM(RXRPC_CALL_LOCAL_ERROR, "LocalError") \
E_(RXRPC_CALL_NETWORK_ERROR, "NetError")
/*
* Export enum symbols via userspace.
*/
@ -624,6 +631,32 @@ TRACE_EVENT(rxrpc_abort,
__entry->abort_code, __entry->error, __entry->why)
);
TRACE_EVENT(rxrpc_call_complete,
TP_PROTO(struct rxrpc_call *call),
TP_ARGS(call),
TP_STRUCT__entry(
__field(unsigned int, call )
__field(enum rxrpc_call_completion, compl )
__field(int, error )
__field(u32, abort_code )
),
TP_fast_assign(
__entry->call = call->debug_id;
__entry->compl = call->completion;
__entry->error = call->error;
__entry->abort_code = call->abort_code;
),
TP_printk("c=%08x %s r=%d ac=%d",
__entry->call,
__print_symbolic(__entry->compl, rxrpc_completions),
__entry->error,
__entry->abort_code)
);
TRACE_EVENT(rxrpc_transmit,
TP_PROTO(struct rxrpc_call *call, enum rxrpc_transmit_trace why),

1
net/rxrpc/ar-internal.h
View File

@ -778,6 +778,7 @@ static inline bool __rxrpc_set_call_completion(struct rxrpc_call *call,
call->error = error;
call->completion = compl,
call->state = RXRPC_CALL_COMPLETE;
trace_rxrpc_call_complete(call);
wake_up(&call->waitq);
return true;
}