tracing: Kill tracing_{start,stop}_sched_switch_record() and tracing_sched_switch_assign_trace() (63253725) · Commits · 戴 / test

kernel/trace/trace.h

+0 −3

Original line number	Diff line number	Diff line
		@@ -597,9 +597,6 @@ void set_graph_array(struct trace_array *tr);

		void tracing_start_cmdline_record(void);
		void tracing_stop_cmdline_record(void);
		void tracing_sched_switch_assign_trace(struct trace_array *tr);
		void tracing_stop_sched_switch_record(void);
		void tracing_start_sched_switch_record(void);
		int register_tracer(struct tracer *type);
		int is_tracing_stopped(void);

+0 −48

Original line number	Diff line number	Diff line
		@@ -197,51 +197,3 @@ void tracing_stop_cmdline_record(void)
		{
		tracing_stop_sched_switch();
		}

		/**
		* tracing_start_sched_switch_record - start tracing context switches
		*
		* Turns on context switch tracing for a tracer.
		*/
		void tracing_start_sched_switch_record(void)
		{
		if (unlikely(!ctx_trace)) {
		WARN_ON(1);
		return;
		}

		tracing_start_sched_switch();

		mutex_lock(&sched_register_mutex);
		tracer_enabled++;
		mutex_unlock(&sched_register_mutex);
		}

		/**
		* tracing_stop_sched_switch_record - start tracing context switches
		*
		* Turns off context switch tracing for a tracer.
		*/
		void tracing_stop_sched_switch_record(void)
		{
		mutex_lock(&sched_register_mutex);
		tracer_enabled--;
		WARN_ON(tracer_enabled < 0);
		mutex_unlock(&sched_register_mutex);

		tracing_stop_sched_switch();
		}

		/**
		* tracing_sched_switch_assign_trace - assign a trace array for ctx switch
		* @tr: trace array pointer to assign
		*
		* Some tracers might want to record the context switches in their
		* trace. This function lets those tracers assign the trace array
		* to use.
		*/
		void tracing_sched_switch_assign_trace(struct trace_array *tr)
		{
		ctx_trace = tr;
		}