Re: [PATCH v6 03/11] stop_machine: Add stop_core_cpuslocked() for per-core operations

Thomas Gleixner
2022-05-06T08:21:14Z

On Thu, May 05 2022 at 18:40, Tony Luck wrote:
> From: Peter Zijlstra <peterz@infradead.org>
>
> Hardware core level testing features require near simultaneous execution
> of WRMSR instructions on all threads of a core to initiate a test.
>
> Provide a customized cut down version of stop_machine_cpuslocked() that
> just operates on the threads of a single core.
>
> Suggested-by: Thomas Gleixner <tglx@linutronix.de>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
> Signed-off-by: Tony Luck <tony.luck@intel.com>

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>