> On Wed, Sep 10, 2014 at 01:55:31PM -0400, [email protected] wrote: > > SNIP > > > + struct perf_pmu_event_symbol *pmu2 = > > + (struct perf_pmu_event_symbol *) p2; > > + > > + return strcmp(pmu1->symbol, pmu2->symbol); } > > + > > +/* > > + * Read the pmu events list from sysfs > > + * Save it into perf_pmu_events_list > > + */ > > +static void perf_pmu__parse_init(void) { > > + > > + struct perf_pmu *pmu = NULL; > > + struct perf_pmu_alias *alias; > > + int len = 0; > > + > > + while ((pmu = perf_pmu__scan(pmu)) != NULL) > > + list_for_each_entry(alias, &pmu->aliases, list) { > > + if (!strcmp(pmu->name, "cpu")) { > > + if (strchr(alias->name, '-')) > > + len++; > > + len++; > > + } > > + } > > + if (len == 0) > > + return; > > s oif 'len' is 0 we will scan all the time? maybe we want some separate 'init' > variable.. >
Maybe we can reuse the "perf_pmu_events_list_num". static int perf_pmu_events_list_num; If len is 0, we just set perf_pmu_events_list_num to -1. Is it OK? Thanks, Kan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
