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Commit 63253725 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Steven Rostedt
Browse files

tracing: Kill tracing_{start,stop}_sched_switch_record() and tracing_sched_switch_assign_trace() 

tracing_{start,stop}_sched_switch_record() have no callers since
87d80de2 "tracing: Remove obsolete sched_switch tracer".

The last caller of tracing_sched_switch_assign_trace() was removed
by 30dbb20e "tracing: Remove boot tracer".

Link: http://lkml.kernel.org/p/20140723193501.GA30214@redhat.com



Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 4fd3279b

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);

kernel/trace/trace_sched_switch.c

+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;

}