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tracing: make power tracer start/stop methods lighter weight

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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: Steven Rostedt <srostedt@redhat.com>
This commit is contained in:
Steven Rostedt
2009-03-17 20:58:00 -04:00
parent 5fec6ddcb4
commit 62524d55e5
1 changed files with 6 additions and 2 deletions
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8
kernel/trace/trace_power.c
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@@ -122,10 +122,14 @@ fail_start:
static void start_power_trace(struct trace_array *tr) static void start_power_trace(struct trace_array *tr)
{ {
trace_power_enabled = 1; trace_power_enabled = 1;
tracing_power_register();
} }
static void stop_power_trace(struct trace_array *tr) 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; trace_power_enabled = 0;
unregister_trace_power_start(probe_power_start); unregister_trace_power_start(probe_power_start);
@@ -188,7 +192,7 @@ static struct tracer power_tracer __read_mostly =
.init = power_trace_init, .init = power_trace_init,
.start = start_power_trace, .start = start_power_trace,
.stop = stop_power_trace, .stop = stop_power_trace,
.reset = stop_power_trace, .reset = power_trace_reset,
.print_line = power_print_line, .print_line = power_print_line,
}; };