Re: [PATCH 11/23] hrtimer: Use RCU to protect access of HK_TYPE_TIMER cpumask

Thomas Gleixner
2026-04-21T08:59:29Z

On Mon, Apr 20 2026 at 23:03, Waiman Long wrote:
> As HK_TYPE_TIMER cpumask is going to be changeable at run time, use

As the ...

> RCU to protect access to the cpumask.
>
> The access of HK_TYPE_TIMER cpumask within hrtimers_cpu_dying() is
> protected as interrupt is disabled and all the other CPUs are stopped

interrupts are disabled

> when this function is invoked as part of the CPU tear down process.