diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 385391fb1d3bc508270fbda17233fdef1c8e36b4..a3a82d5f25dcb08c3542d20f07e34155367ce4a8 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -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); diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c index 3f34dc9b40f350bac7ae8869b17e4f5216b05d1a..3b60301c59d2e4018fe5434cb7b206df2ab287e4 100644 --- a/kernel/trace/trace_sched_switch.c +++ b/kernel/trace/trace_sched_switch.c @@ -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; -} -