Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: [patch V6 12/37] x86/entry: Provide idtentry_entry/exit_cond_rcu() | Date | Thu, 21 May 2020 10:31:11 +0200 |
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"Paul E. McKenney" <paulmck@kernel.org> writes: > On Wed, May 20, 2020 at 03:15:31PM -0700, Paul E. McKenney wrote: > Same patch, but with updated commit log based on IRC discussion > with Andy.
Fun. I came up with the same thing before going to bed. Just that I named the function differently: rcu_irq_enter_check_tick()
> #if defined(CONFIG_TINY_RCU) > > +static inline void tickle_nohz_for_rcu(void) > +{ > +} > + > static inline void rcu_nmi_enter(void) > { > } > @@ -23,6 +27,7 @@ static inline void rcu_nmi_exit(void) > } > > #else > +extern void tickle_nohz_for_rcu(void);
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(); }
Thanks,
tglx
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