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rxrpc: Add a tracepoint to track rxrpc_local refcounting

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Add a tracepoint to track reference counting on the rxrpc_local struct.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2018-03-30 21:05:28 +01:00
parent d3be4d2443
commit 09d2bf595d
4 changed files with 111 additions and 27 deletions
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43
include/trace/events/rxrpc.h
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@@ -42,6 +42,14 @@ enum rxrpc_skb_trace {
rxrpc_skb_tx_seen,
};
enum rxrpc_local_trace {
rxrpc_local_got,
rxrpc_local_new,
rxrpc_local_processing,
rxrpc_local_put,
rxrpc_local_queued,
};
enum rxrpc_conn_trace {
rxrpc_conn_got,
rxrpc_conn_new_client,
@@ -215,6 +223,13 @@ enum rxrpc_congest_change {
EM(rxrpc_skb_tx_rotated, "Tx ROT") \
E_(rxrpc_skb_tx_seen, "Tx SEE")
#define rxrpc_local_traces \
EM(rxrpc_local_got, "GOT") \
EM(rxrpc_local_new, "NEW") \
EM(rxrpc_local_processing, "PRO") \
EM(rxrpc_local_put, "PUT") \
E_(rxrpc_local_queued, "QUE")
#define rxrpc_conn_traces \
EM(rxrpc_conn_got, "GOT") \
EM(rxrpc_conn_new_client, "NWc") \
@@ -416,6 +431,7 @@ enum rxrpc_congest_change {
#define E_(a, b) TRACE_DEFINE_ENUM(a);
rxrpc_skb_traces;
rxrpc_local_traces;
rxrpc_conn_traces;
rxrpc_client_traces;
rxrpc_call_traces;
@@ -439,6 +455,33 @@ rxrpc_congest_changes;
#define EM(a, b) { a, b },
#define E_(a, b) { a, b }
TRACE_EVENT(rxrpc_local,
TP_PROTO(struct rxrpc_local *local, enum rxrpc_local_trace op,
int usage, const void *where),
TP_ARGS(local, op, usage, where),
TP_STRUCT__entry(
__field(unsigned int, local )
__field(int, op )
__field(int, usage )
__field(const void *, where )
),
TP_fast_assign(
__entry->local = local->debug_id;
__entry->op = op;
__entry->usage = usage;
__entry->where = where;
),
TP_printk("L=%08x %s u=%d sp=%pSR",
__entry->local,
__print_symbolic(__entry->op, rxrpc_local_traces),
__entry->usage,
__entry->where)
);
TRACE_EVENT(rxrpc_conn,
TP_PROTO(struct rxrpc_connection *conn, enum rxrpc_conn_trace op,
int usage, const void *where),