Re: [patch V6 12/37] x86/entry: Provide idtentry_entry/exit_cond_rcu()

From: Thomas Gleixner
Date: Thu May 21 2020 - 14:41:52 EST


"Paul E. McKenney" <paulmck@xxxxxxxxxx> writes:
> On Thu, May 21, 2020 at 10:31:11AM +0200, Thomas Gleixner wrote:
>> And I made this a NOP for for !NOHZ_FULL systems and avoided the call if
>> context tracking is not enabled at boot.
>>
>> void __rcu_irq_enter_check_tick(void);
>>
>> static inline void rcu_irq_enter_check_tick(void)
>> {
>> if (context_tracking_enabled())
>> __rcu_irq_enter_check_tick();
>> }
>
> That certainly is a better approach!
>
> So let's go with your version. But could you please post it, just in
> case reviewing an alternative version causes me to spot something?

I'm just testing the complete rework of this series and will post it if
it survives smoke testing.

Thanks,

tglx