Commit 7f96f93f authored by Steven Rostedt's avatar Steven Rostedt
Browse files

tracing: move binary buffers into per cpu directory 



The binary_buffers directory in /debugfs/tracing held the files
to read the trace buffers in a binary format. This held one file
per CPU buffer. But we also have a per_cpu directory that holds
a way to read the pretty-print formats.

This patch moves the binary buffers into the per_cpu_directory:

 # ls /debug/tracing/per_cpu/cpu1/
trace  trace_pipe  trace_pipe_raw

The new name is called "trace_pipe_raw". The binary buffers always
acted similar to trace_pipe, except that they produce raw data.

Requested-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarSteven Rostedt <srostedt@redhat.com>
parent bdc06758

kernel/trace/trace.c

+5 −21
Original line number Diff line number Diff line
@@ -3543,6 +3543,11 @@ static void tracing_init_debugfs_percpu(long cpu) 
				(void *) cpu, &tracing_fops);

	if (!entry)

		pr_warning("Could not create debugfs 'trace' entry\n");



	entry = debugfs_create_file("trace_pipe_raw", 0444, d_cpu,

				    (void *) cpu, &tracing_buffers_fops);

	if (!entry)

		pr_warning("Could not create debugfs 'trace_pipe_raw' entry\n");

}



#ifdef CONFIG_FTRACE_SELFTEST
@@ -3826,7 +3831,6 @@ static __init void create_trace_options_dir(void) 
static __init int tracer_init_debugfs(void)

{

	struct dentry *d_tracer;

	struct dentry *buffers;

	struct dentry *entry;

	int cpu;
@@ -3899,26 +3903,6 @@ static __init int tracer_init_debugfs(void) 
		pr_warning("Could not create debugfs "

			   "'trace_marker' entry\n");



	buffers = debugfs_create_dir("binary_buffers", d_tracer);



	if (!buffers)

		pr_warning("Could not create buffers directory\n");

	else {

		int cpu;

		char buf[64];



		for_each_tracing_cpu(cpu) {

			sprintf(buf, "%d", cpu);



			entry = debugfs_create_file(buf, 0444, buffers,

						    (void *)(long)cpu,

						    &tracing_buffers_fops);

			if (!entry)

				pr_warning("Could not create debugfs buffers "

					   "'%s' entry\n", buf);

		}

	}



#ifdef CONFIG_DYNAMIC_FTRACE

	entry = debugfs_create_file("dyn_ftrace_total_info", 0444, d_tracer,

				    &ftrace_update_tot_cnt,

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