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Commit 121aaee7 authored by Steven Rostedt (Red Hat)'s avatar Steven Rostedt (Red Hat) Committed by Steven Rostedt
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tracing: Add per_cpu directory into tracing instances 



Add the per_cpu directory to the created tracing instances:

  cd /sys/kernel/debug/tracing/instances
  mkdir foo
  ls foo/per_cpu/cpu0
buffer_size_kb	snapshot_raw  trace	  trace_pipe_raw
snapshot	stats	      trace_pipe

Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent ce9bae55

kernel/trace/trace.c

+5 −4
Original line number Diff line number Diff line
@@ -5506,6 +5506,7 @@ static __init void create_trace_instances(struct dentry *d_tracer) 
static void

init_tracer_debugfs(struct trace_array *tr, struct dentry *d_tracer)

{

	int cpu;



	trace_create_file("trace_options", 0644, d_tracer,

			  tr, &tracing_iter_fops);
@@ -5538,12 +5539,15 @@ init_tracer_debugfs(struct trace_array *tr, struct dentry *d_tracer) 
	trace_create_file("snapshot", 0644, d_tracer,

			  (void *)&tr->trace_cpu, &snapshot_fops);

#endif



	for_each_tracing_cpu(cpu)

		tracing_init_debugfs_percpu(tr, cpu);



}



static __init int tracer_init_debugfs(void)

{

	struct dentry *d_tracer;

	int cpu;



	trace_access_lock_init();
@@ -5583,9 +5587,6 @@ static __init int tracer_init_debugfs(void) 


	create_trace_options_dir(&global_trace);



	for_each_tracing_cpu(cpu)

		tracing_init_debugfs_percpu(&global_trace, cpu);



	return 0;

}