Re: [PATCH] hrtimers: Make hrtimer_update_function() less expensive

[Thomas Gleixner]

On Sat, Feb 08 2025 at 08:18, Jens Axboe wrote:

> On 2/7/25 2:16 PM, Thomas Gleixner wrote:
>> The sanity checks in hrtimer_update_function() are expensive for high
>> frequency usage like in the io/uring code due to locking.
>> 
>> Hide the sanity checks behind CONFIG_PROVE_LOCKING, which has a decent
>> chance to be enabled on a regular basis for testing.
>
> Looks good to me, thanks Thomas. On my side, I always have a debug run
> done with PROVE_LOCKING and KASAN, fwiw.

I assume that with that your objections against the conversion of ioring
to hrtimer_update_function() is gone too.

Thanks,

        tglx