forked from luck/tmp_suning_uos_patched
bbf5b1a0ce
Impact: Remove the ctrl_update tracer method With the new quick start/stop method of tracing, the ctrl_update method is out of date. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
55 lines
870 B
C
55 lines
870 B
C
/*
|
|
* nop tracer
|
|
*
|
|
* Copyright (C) 2008 Steven Noonan <steven@uplinklabs.net>
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/debugfs.h>
|
|
#include <linux/ftrace.h>
|
|
|
|
#include "trace.h"
|
|
|
|
static struct trace_array *ctx_trace;
|
|
|
|
static void start_nop_trace(struct trace_array *tr)
|
|
{
|
|
/* Nothing to do! */
|
|
}
|
|
|
|
static void stop_nop_trace(struct trace_array *tr)
|
|
{
|
|
/* Nothing to do! */
|
|
}
|
|
|
|
static void nop_trace_init(struct trace_array *tr)
|
|
{
|
|
int cpu;
|
|
ctx_trace = tr;
|
|
|
|
for_each_online_cpu(cpu)
|
|
tracing_reset(tr, cpu);
|
|
|
|
if (tr->ctrl)
|
|
start_nop_trace(tr);
|
|
}
|
|
|
|
static void nop_trace_reset(struct trace_array *tr)
|
|
{
|
|
if (tr->ctrl)
|
|
stop_nop_trace(tr);
|
|
}
|
|
|
|
struct tracer nop_trace __read_mostly =
|
|
{
|
|
.name = "nop",
|
|
.init = nop_trace_init,
|
|
.reset = nop_trace_reset,
|
|
#ifdef CONFIG_FTRACE_SELFTEST
|
|
.selftest = trace_selftest_startup_nop,
|
|
#endif
|
|
};
|
|
|