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rxrpc: Add a tracepoint to follow what recvmsg does

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Add a tracepoint to follow what recvmsg does within AF_RXRPC.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2016-09-17 11:13:31 +01:00
parent 58dc63c998
commit 849979051c
4 changed files with 91 additions and 8 deletions
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34
include/trace/events/rxrpc.h
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@@ -323,6 +323,40 @@ TRACE_EVENT(rxrpc_receive,
__entry->top)
);
TRACE_EVENT(rxrpc_recvmsg,
TP_PROTO(struct rxrpc_call *call, enum rxrpc_recvmsg_trace why,
rxrpc_seq_t seq, unsigned int offset, unsigned int len,
int ret),
TP_ARGS(call, why, seq, offset, len, ret),
TP_STRUCT__entry(
__field(struct rxrpc_call *, call )
__field(enum rxrpc_recvmsg_trace, why )
__field(rxrpc_seq_t, seq )
__field(unsigned int, offset )
__field(unsigned int, len )
__field(int, ret )
),
TP_fast_assign(
__entry->call = call;
__entry->why = why;
__entry->seq = seq;
__entry->offset = offset;
__entry->len = len;
__entry->ret = ret;
),
TP_printk("c=%p %s q=%08x o=%u l=%u ret=%d",
__entry->call,
rxrpc_recvmsg_traces[__entry->why],
__entry->seq,
__entry->offset,
__entry->len,
__entry->ret)
);
#endif /* _TRACE_RXRPC_H */
/* This part must be outside protection */