cpu_set(j, set_mask);
set_cpus_allowed(current, set_mask);
+ preempt_disable();
if (unlikely(!cpu_isset(smp_processor_id(), set_mask))) {
dprintk("couldn't limit to CPUs in this domain\n");
retval = -EAGAIN;
/* We haven't started the transition yet. */
goto migrate_end;
}
+ preempt_enable();
break;
}
}
wrmsr(MSR_IA32_PERF_CTL, oldmsr, h);
- if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY)
+ if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) {
+ preempt_enable();
break;
+ }
cpu_set(j, covered_cpus);
+ preempt_enable();
}
for_each_cpu_mask(k, online_policy_cpus) {
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
}
}
+ set_cpus_allowed(current, saved_mask);
+ return 0;
migrate_end:
+ preempt_enable();
set_cpus_allowed(current, saved_mask);
return 0;
}