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SubjectRe: [PATCH V4 12/12] trace/osnoise: Support hotplug operations
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On 6/18/21 9:04 PM, Steven Rostedt wrote:
> On Tue, 15 Jun 2021 11:28:51 +0200
> Daniel Bristot de Oliveira <bristot@redhat.com> wrote:
>
>> @@ -1566,7 +1627,14 @@ osnoise_cpus_write(struct file *filp, const char __user *ubuf, size_t count,
>> osnoise_tracer_stop(tr);
>>
>> mutex_lock(&interface_lock);
>> + /*
>> + * osnoise_cpumask is ready by CPU hotplug operations.
>
> I don't understand the usage of "ready" above. Lost in translation?
>
> * osnoise_cpumask is updated by CPU hotplug operations.

I think I meant "read"... I will use your comment.

Thanks

-- Daniel
> ?
>
> -- Steve
>
>
>> + */
>> + get_online_cpus();
>> +
>> cpumask_copy(&osnoise_cpumask, osnoise_cpumask_new);
>> +
>> + put_online_cpus();
>> mutex_unlock(&interface_lock);
>>
>

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