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authorDavid Howells <dhowells@redhat.com>2016-09-17 11:49:14 +0200
committerDavid Howells <dhowells@redhat.com>2016-09-17 12:24:03 +0200
commita84a46d73050f70fd8820c74840e2815c78d8690 (patch)
treebea4656751f19892dc0d4726cb1fb0d617cf6493 /net
parentrxrpc: Print the packet type name in the Rx packet trace (diff)
downloadlinux-a84a46d73050f70fd8820c74840e2815c78d8690.tar.xz
linux-a84a46d73050f70fd8820c74840e2815c78d8690.zip
rxrpc: Add some additional call tracing
Add additional call tracepoint points for noting call-connected, call-released and connection-failed events. Also fix one tracepoint that was using an integer instead of the corresponding enum value as the point type. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net')
-rw-r--r--net/rxrpc/ar-internal.h3
-rw-r--r--net/rxrpc/call_object.c18
2 files changed, 17 insertions, 4 deletions
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 0f6fafa2c271..4a73c20d9436 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -539,6 +539,8 @@ enum rxrpc_call_trace {
rxrpc_call_queued,
rxrpc_call_queued_ref,
rxrpc_call_seen,
+ rxrpc_call_connected,
+ rxrpc_call_release,
rxrpc_call_got,
rxrpc_call_got_userid,
rxrpc_call_got_kernel,
@@ -546,6 +548,7 @@ enum rxrpc_call_trace {
rxrpc_call_put_userid,
rxrpc_call_put_kernel,
rxrpc_call_put_noqueue,
+ rxrpc_call_error,
rxrpc_call__nr_trace
};
diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index 23f5a5f58282..0df9d1af8edb 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -53,6 +53,8 @@ const char rxrpc_call_traces[rxrpc_call__nr_trace][4] = {
[rxrpc_call_new_service] = "NWs",
[rxrpc_call_queued] = "QUE",
[rxrpc_call_queued_ref] = "QUR",
+ [rxrpc_call_connected] = "CON",
+ [rxrpc_call_release] = "RLS",
[rxrpc_call_seen] = "SEE",
[rxrpc_call_got] = "GOT",
[rxrpc_call_got_userid] = "Gus",
@@ -61,6 +63,7 @@ const char rxrpc_call_traces[rxrpc_call__nr_trace][4] = {
[rxrpc_call_put_userid] = "Pus",
[rxrpc_call_put_kernel] = "Pke",
[rxrpc_call_put_noqueue] = "PNQ",
+ [rxrpc_call_error] = "*E*",
};
struct kmem_cache *rxrpc_call_jar;
@@ -222,8 +225,8 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *rx,
return call;
}
- trace_rxrpc_call(call, 0, atomic_read(&call->usage), here,
- (const void *)user_call_ID);
+ trace_rxrpc_call(call, rxrpc_call_new_client, atomic_read(&call->usage),
+ here, (const void *)user_call_ID);
/* Publish the call, even though it is incompletely set up as yet */
write_lock(&rx->call_lock);
@@ -263,6 +266,9 @@ struct rxrpc_call *rxrpc_new_client_call(struct rxrpc_sock *rx,
if (ret < 0)
goto error;
+ trace_rxrpc_call(call, rxrpc_call_connected, atomic_read(&call->usage),
+ here, ERR_PTR(ret));
+
spin_lock_bh(&call->conn->params.peer->lock);
hlist_add_head(&call->error_link,
&call->conn->params.peer->error_targets);
@@ -287,6 +293,8 @@ error_dup_user_ID:
error:
__rxrpc_set_call_completion(call, RXRPC_CALL_LOCAL_ERROR,
RX_CALL_DEAD, ret);
+ trace_rxrpc_call(call, rxrpc_call_error, atomic_read(&call->usage),
+ here, ERR_PTR(ret));
rxrpc_release_call(rx, call);
rxrpc_put_call(call, rxrpc_call_put);
_leave(" = %d", ret);
@@ -396,15 +404,17 @@ void rxrpc_get_call(struct rxrpc_call *call, enum rxrpc_call_trace op)
*/
void rxrpc_release_call(struct rxrpc_sock *rx, struct rxrpc_call *call)
{
+ const void *here = __builtin_return_address(0);
struct rxrpc_connection *conn = call->conn;
bool put = false;
int i;
_enter("{%d,%d}", call->debug_id, atomic_read(&call->usage));
- ASSERTCMP(call->state, ==, RXRPC_CALL_COMPLETE);
+ trace_rxrpc_call(call, rxrpc_call_release, atomic_read(&call->usage),
+ here, (const void *)call->flags);
- rxrpc_see_call(call);
+ ASSERTCMP(call->state, ==, RXRPC_CALL_COMPLETE);
spin_lock_bh(&call->lock);
if (test_and_set_bit(RXRPC_CALL_RELEASED, &call->flags))