perf_ibs_set_period  405 arch/x86/events/amd/ibs.c 	perf_ibs_set_period(perf_ibs, hwc, &period);
perf_ibs_set_period  609 arch/x86/events/amd/ibs.c 	if (!perf_ibs_set_period(perf_ibs, hwc, &period))