> +Event Profiling
> +---------------
> + You can check the total number of probe hits and probe miss-hits via
> +/sys/kernel/debug/tracing/kprobe_profile.
> + The fist column is event name, the second is the number of probe hits,
s/fist/first
> +the third is the number of probe miss-hits.
> +
> +
...
> +/* Probes profiling interfaces */
> +static int profile_seq_show(struct seq_file *m, void *v)
> +{
> + struct trace_probe *tp = v;
> +
> + if (tp == NULL)
> + return 0;
> +
tp will never be NULL, which is guaranteed by seq_file
> + seq_printf(m, "%s", tp->call.name);
> +
> + seq_printf(m, "\t%8lu %8lu\n", tp->nhits,
> + probe_is_return(tp) ? tp->rp.kp.nmissed : tp->kp.nmissed);
> +
> + return 0;
> +}
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