Re: [PATCH 11/16] time: optimize tick_check_preferred()

Thomas Gleixner
2022-08-08T11:43:05Z

On Sat, Aug 06 2022 at 10:30, Thomas Gleixner wrote:
> On Mon, Jul 18 2022 at 12:28, Yury Norov wrote:
>
>> tick_check_preferred() calls cpumask_equal() even if
>> curdev->cpumask == newdev->cpumask. Fix it.
>
> What's to fix here? It's a pointless operation in a slow path and all
> your "fix' is doing is to make the code larger.

In fact cpumask_equal() should have the ptr1 == ptr2 check, so you don't
have to add it all over the place.

Thanks,

tglx