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Commit 62524d55 authored by Steven Rostedt's avatar Steven Rostedt
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tracing: make power tracer start/stop methods lighter weight 



The start/stop methods of a tracer should be able to be executed
in all contexts. This patch converts the power tracer to do so.

Signed-off-by: default avatarSteven Rostedt <srostedt@redhat.com>
parent 5fec6ddc

kernel/trace/trace_power.c

+6 −2
Original line number Diff line number Diff line
@@ -122,10 +122,14 @@ static int tracing_power_register(void) 
static void start_power_trace(struct trace_array *tr)

{

	trace_power_enabled = 1;

	tracing_power_register();

}



static void stop_power_trace(struct trace_array *tr)

{

	trace_power_enabled = 0;

}



static void power_trace_reset(struct trace_array *tr)

{

	trace_power_enabled = 0;

	unregister_trace_power_start(probe_power_start);
@@ -188,7 +192,7 @@ static struct tracer power_tracer __read_mostly = 
	.init		= power_trace_init,

	.start		= start_power_trace,

	.stop		= stop_power_trace,

	.reset		= stop_power_trace,

	.reset		= power_trace_reset,

	.print_line	= power_print_line,

};