Hi As I understand that when cpufreq work with cpu hotplug together, it depends on policy_lock to make sure that cpufreq will not work with cpu hotplug together. They can be ordered. The userspace governor use __cpufreq_driver_target not cpufreq_driver_target when change the cpu frequency. It means that it will not grap the policy_lock, so when change the cpu frequency, the cpu hotplug will happen. So what I need to do if I want to make cpu hotplug not happens at same time when I change the cpu frequency? -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
