Re: [PATCH 3/3] task_work: use TIF_TASKWORK if available

[Thomas Gleixner]

On Fri, Oct 02 2020 at 09:52, Jens Axboe wrote:
> On 10/2/20 9:31 AM, Thomas Gleixner wrote:
>>> This way task_work_run() doesn't need to clear TIF_NOTIFY_SIGNAL and it can
>>> have more users.
>> 
>> I think it's fundamentaly wrong that we have several places and several
>> flags which handle task_work_run() instead of having exactly one place
>> and one flag.
>
> I don't disagree with that. I know it's not happening in this series, but
> if we to the TIF_NOTIFY_SIGNAL route and get all archs supporting that,
> then we can kill the signal and notify resume part of running task_work.
> And that leaves us with exactly one place that runs it.
>
> So we can potentially improve the current situation in that regard.

I'll think about it over the weekend.