Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: [PATCH 11/16] time: optimize tick_check_preferred() | Date | Mon, 08 Aug 2022 13:42:54 +0200 |
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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
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