Re: [RFC][PATCH 2/2] time: alarmtimer: Use TASK_FREEZABLE to cleanup freezer handling

[Thomas Gleixner]

On Thu, Mar 02 2023 at 15:32, Rafael J. Wysocki wrote:
> On Mon, Feb 20, 2023 at 10:19 PM Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
>> +static atomic_t alarmtimer_wakeup;
>>
>>  /**
>>   * alarmtimer_fired - Handles alarm hrtimer being fired.
>> @@ -194,6 +196,8 @@ static enum hrtimer_restart alarmtimer_f
>>         int ret = HRTIMER_NORESTART;
>>         int restart = ALARMTIMER_NORESTART;
>>
>> +       atomic_inc(&alarmtimer_wakeup);
>> +
>
> This appears to be still somewhat racy, because the notifier can run
> at this point AFAICS.

Indeed it is. Let me think more about this.