pmu_bus_running 9997 kernel/events/core.c static int pmu_bus_running; pmu_bus_running 10080 kernel/events/core.c if (pmu_bus_running) { pmu_bus_running 10190 kernel/events/core.c if (pmu_bus_running) { pmu_bus_running 12289 kernel/events/core.c pmu_bus_running = 1;