Re: [PATCH 4.19 000/175] 4.19.312-rc1 review

From: Thomas Gleixner
Date: Fri Apr 12 2024 - 16:02:56 EST


On Fri, Apr 12 2024 at 21:46, Pavel Machek wrote:
>> Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>> timers: Move clearing of base::timer_running under base:: Lock
>
> AFAICT, we don't have those NULL assignments in expire_timers in
> 4.19. Can someone doublecheck this? We also don't support PREEMPT_RT
> there.

This has nothing to do with RT.

But yes, 4.19 has the original bass::running_timer clearing which
happens at the end of handling all expired timer callbacks and that
actually happens with base->lock held.

So right, 4.19 is not affected by this.

Thanks,

tglx