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Commit c435da68 authored by Chuck Lever's avatar Chuck Lever Committed by Anna Schumaker
Browse files

sunrpc: Add rpc_request static trace point 



Display information about the RPC procedure being requested in the
trace log. This sometimes critical information cannot always be
derived from other RPC trace entries.

Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
parent b2bfe591

include/trace/events/sunrpc.h

+30 −0
Original line number Diff line number Diff line
@@ -70,6 +70,36 @@ TRACE_EVENT(rpc_connect_status, 
		__entry->status)

);



TRACE_EVENT(rpc_request,

	TP_PROTO(const struct rpc_task *task),



	TP_ARGS(task),



	TP_STRUCT__entry(

		__field(unsigned int, task_id)

		__field(unsigned int, client_id)

		__field(int, version)

		__field(bool, async)

		__string(progname, task->tk_client->cl_program->name)

		__string(procname, rpc_proc_name(task))

	),



	TP_fast_assign(

		__entry->task_id = task->tk_pid;

		__entry->client_id = task->tk_client->cl_clid;

		__entry->version = task->tk_client->cl_vers;

		__entry->async = RPC_IS_ASYNC(task);

		__assign_str(progname, task->tk_client->cl_program->name)

		__assign_str(procname, rpc_proc_name(task))

	),



	TP_printk("task:%u@%u %sv%d %s (%ssync)",

		__entry->task_id, __entry->client_id,

		__get_str(progname), __entry->version,

		__get_str(procname), __entry->async ? "a": ""

		)

);



DECLARE_EVENT_CLASS(rpc_task_running,



	TP_PROTO(const struct rpc_clnt *clnt, const struct rpc_task *task, const void *action),

net/sunrpc/clnt.c

+1 −2
Original line number Diff line number Diff line
@@ -1491,7 +1491,6 @@ rpc_restart_call(struct rpc_task *task) 
}

EXPORT_SYMBOL_GPL(rpc_restart_call);



#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)

const char

*rpc_proc_name(const struct rpc_task *task)

{
@@ -1505,7 +1504,6 @@ const char 
	} else

		return "no proc";

}

#endif



/*

 * 0.  Initial state
@@ -1519,6 +1517,7 @@ call_start(struct rpc_task *task) 
	struct rpc_clnt	*clnt = task->tk_client;

	int idx = task->tk_msg.rpc_proc->p_statidx;



	trace_rpc_request(task);

	dprintk("RPC: %5u call_start %s%d proc %s (%s)\n", task->tk_pid,

			clnt->cl_program->name, clnt->cl_vers,

			rpc_proc_name(task),