On Sat, 22 Oct 2016, SF Markus Elfring wrote:
> >> @@ -494,12 +494,11 @@ static int sn2_ptc_seq_show(struct seq_file *file,
> >> void *data)
> >> int cpu;
> >>
> >> cpu = *(loff_t *) data;
> >> -
> >> - if (!cpu) {
> >> + if (!cpu)
> >> seq_printf(file,
> >> - "# cpu ptc_l newrid ptc_flushes nodes_flushed
> >> deadlocks lock_nsec shub_nsec shub_nsec_max not_my_mm deadlock2
> >> ipi_fluches ipi_nsec\n");
> >> - seq_printf(file, "# ptctest %d, flushopt %d\n", sn2_ptctest,
> >> sn2_flush_opt);
> >> - }
> >> + "# cpu ptc_l newrid ptc_flushes nodes_flushed
> >> deadlocks lock_nsec shub_nsec shub_nsec_max not_my_mm deadlock2
> >> ipi_fluches ipi_nsec\n"
> >> + "# ptctest %d, flushopt %d\n",
> >> + sn2_ptctest, sn2_flush_opt);
> >>
> >> if (cpu < nr_cpu_ids && cpu_online(cpu)) {
> >> stat = &per_cpu(ptcstats, cpu);
> >
> > Please think more.
> >
> > printf has to inspect character by character looking for
> > a vsprintf % character and 0 termination.
> >
> > seq_puts does a strlen then memcpy.
>
> Would you prefer to use this function also at this source code place?
I think that he is expecting that you will figure out the answer by
yourself.
julia
