struct perf_event *event);
struct event_constraint *event_constraints;
- void (*cpu_prepare)(int cpu);
+ int (*cpu_prepare)(int cpu);
void (*cpu_starting)(int cpu);
void (*cpu_dying)(int cpu);
void (*cpu_dead)(int cpu);
x86_pmu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
{
unsigned int cpu = (long)hcpu;
+ int ret = NOTIFY_OK;
switch (action & ~CPU_TASKS_FROZEN) {
case CPU_UP_PREPARE:
if (x86_pmu.cpu_prepare)
- x86_pmu.cpu_prepare(cpu);
+ ret = x86_pmu.cpu_prepare(cpu);
break;
case CPU_STARTING:
x86_pmu.cpu_dying(cpu);
break;
+ case CPU_UP_CANCELED:
case CPU_DEAD:
if (x86_pmu.cpu_dead)
x86_pmu.cpu_dead(cpu);
break;
}
- return NOTIFY_OK;
+ return ret;
}
static void __init pmu_check_apic(void)