Re: [PATCH] trace: Use tracing_reset_online_cpus in more places

[Frédéric Weisbecker]

2009/1/28 Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxxxx>:
> Impact: cleanup
>
> Cc: Frédéric Weisbecker <fweisbec@xxxxxxxxx>
> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxx>
> Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
>
> diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
> index ca017e0..1284145 100644
> --- a/kernel/trace/trace_branch.c
> +++ b/kernel/trace/trace_branch.c
> @@ -133,11 +133,7 @@ static void stop_branch_trace(struct trace_array *tr)
>
>  static int branch_trace_init(struct trace_array *tr)
>  {
> -       int cpu;
> -
> -       for_each_online_cpu(cpu)
> -               tracing_reset(tr, cpu);
> -
> +       tracing_reset_online_cpus(tr);
>        start_branch_trace(tr);
>        return 0;
>  }
> diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
> index 66fc7b8..c97594d 100644
> --- a/kernel/trace/trace_functions_graph.c
> +++ b/kernel/trace/trace_functions_graph.c
> @@ -52,15 +52,11 @@ static struct tracer_flags tracer_flags = {
>
>  static int graph_trace_init(struct trace_array *tr)
>  {
> -       int cpu, ret;
> -
> -       for_each_online_cpu(cpu)
> -               tracing_reset(tr, cpu);
> -
> -       ret = register_ftrace_graph(&trace_graph_return,
> +       int ret = register_ftrace_graph(&trace_graph_return,
>                                        &trace_graph_entry);
>        if (ret)
>                return ret;
> +       tracing_reset_online_cpus(tr);
>        tracing_start_cmdline_record();
>
>        return 0;
> diff --git a/kernel/trace/trace_nop.c b/kernel/trace/trace_nop.c
> index b9767ac..087b6cb 100644
> --- a/kernel/trace/trace_nop.c
> +++ b/kernel/trace/trace_nop.c
> @@ -47,12 +47,8 @@ static void stop_nop_trace(struct trace_array *tr)
>
>  static int nop_trace_init(struct trace_array *tr)
>  {
> -       int cpu;
>        ctx_trace = tr;
> -
> -       for_each_online_cpu(cpu)
> -               tracing_reset(tr, cpu);
> -
> +       tracing_reset_online_cpus(tr);
>        start_nop_trace(tr);
>        return 0;
>  }
>

Thanks :-)

Acked-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
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