Re: [PATCH tip 1/1] blktrace: Use tracing_reset_online_cpus

From: Arnaldo Carvalho de Melo
Date: Wed Jan 28 2009 - 09:59:23 EST


Em Wed, Jan 28, 2009 at 03:53:48PM +0100, Frédéric Weisbecker escreveu:
> 2009/1/28 Arnaldo Carvalho de Melo <acme@xxxxxxxxxxxxxxxxxx>:
> > Impact: cleanup
> >
> > Use tracing_reset_online_cpus instead of open coding it.
> >
> > Cc: Jens Axboe <jens.axboe@xxxxxxxxxx>
> > Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> >
> > diff --git a/block/blktrace.c b/block/blktrace.c
> > index 1b2267c..04d81d3 100644
> > --- a/block/blktrace.c
> > +++ b/block/blktrace.c
> > @@ -1109,12 +1109,7 @@ static void blk_tracer_print_header(struct seq_file *m)
> >
> > static void blk_tracer_start(struct trace_array *tr)
> > {
> > - int cpu;
> > -
> > - tr->time_start = ftrace_now(tr->cpu);
> > -
> > - for_each_online_cpu(cpu)
> > - tracing_reset(tr, cpu);
> > + tracing_reset_online_cpus(tr);
> >
> > mutex_lock(&blk_probe_mutex);
> > if (atomic_add_return(1, &blk_probes_ref) == 1)
> >
>
> Adding Steven in Cc, he uses to relay tracing patches as patchsets
> pull request to Ingo.

Ok, will add him for the next one.

- Arnaldo
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