On 2018-11-01 16:25:18 [-0700], Paul E. McKenney wrote: > > --- a/kernel/rcu/Kconfig > > +++ b/kernel/rcu/Kconfig > > @@ -36,7 +36,7 @@ config TINY_RCU > > > > config RCU_EXPERT > > bool "Make expert-level adjustments to RCU configuration" > > - default n > > + default y if PREEMPT_RT_FULL > > Would it work to leave this as is, and ... > > > help > > This option needs to be enabled if you wish to make > > expert-level adjustments to RCU configuration. By default, > > @@ -191,7 +191,7 @@ config RCU_FAST_NO_HZ > > config RCU_BOOST > > bool "Enable RCU priority boosting" > > depends on RT_MUTEXES && PREEMPT_RCU && RCU_EXPERT > > ... make the above line instead be: > > depends on (RT_MUTEXES && PREEMPT_RCU && RCU_EXPERT) || PREEMPT_RT_FULL > > Or am I missing something? > > I agree that the risk might currently seem small, but if Linus ever > starts building PREEMPT_RT_FULL kernels, I really really do not want > RCU_EXPERT to be set. ;-) okay, this would work. Let me teak this in my current tree. > Thanx, Paul Sebastian
