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rxrpc: Trace client call connection 

Add a tracepoint (rxrpc_connect_call) to log the combination of rxrpc_call
pointer, afs_call pointer/user data and wire call parameters to make it
easier to match the tracebuffer contents to captured network packets.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells 2017-04-06 10:12:00 +01:00
parent 740586d290
commit 89ca694806
2 changed files with 27 additions and 0 deletions
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26
include/trace/events/rxrpc.h
View File

@ -1162,6 +1162,32 @@ TRACE_EVENT(rxrpc_rx_eproto,
__entry->why)
);
TRACE_EVENT(rxrpc_connect_call,
TP_PROTO(struct rxrpc_call *call),
TP_ARGS(call),
TP_STRUCT__entry(
__field(struct rxrpc_call *, call )
__field(unsigned long, user_call_ID )
__field(u32, cid )
__field(u32, call_id )
),
TP_fast_assign(
__entry->call = call;
__entry->user_call_ID = call->user_call_ID;
__entry->cid = call->cid;
__entry->call_id = call->call_id;
),
TP_printk("c=%p u=%p %08x:%08x",
__entry->call,
(void *)__entry->user_call_ID,
__entry->cid,
__entry->call_id)
);
#endif /* _TRACE_RXRPC_H */
/* This part must be outside protection */

1
net/rxrpc/conn_client.c
View File

@ -550,6 +550,7 @@ static void rxrpc_activate_one_channel(struct rxrpc_connection *conn,
call->cid = conn->proto.cid | channel;
call->call_id = call_id;
trace_rxrpc_connect_call(call);
_net("CONNECT call %08x:%08x as call %d on conn %d",
call->cid, call->call_id, call->debug_id, conn->debug_id);