diff options
Diffstat (limited to 'kernel/rcu/Kconfig')
| -rw-r--r-- | kernel/rcu/Kconfig | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig index 3128b7cf8e1f..4005f2728f1a 100644 --- a/kernel/rcu/Kconfig +++ b/kernel/rcu/Kconfig @@ -169,24 +169,6 @@ config RCU_FANOUT_LEAF Take the default if unsure. -config RCU_FAST_NO_HZ - bool "Accelerate last non-dyntick-idle CPU's grace periods" - depends on NO_HZ_COMMON && SMP && RCU_EXPERT - default n - help - This option permits CPUs to enter dynticks-idle state even if - they have RCU callbacks queued, and prevents RCU from waking - these CPUs up more than roughly once every four jiffies (by - default, you can adjust this using the rcutree.rcu_idle_gp_delay - parameter), thus improving energy efficiency. On the other - hand, this option increases the duration of RCU grace periods, - for example, slowing down synchronize_rcu(). - - Say Y if energy efficiency is critically important, and you - don't care about increased grace-period durations. - - Say N if you are unsure. - config RCU_BOOST bool "Enable RCU priority boosting" depends on (RT_MUTEXES && PREEMPT_RCU && RCU_EXPERT) || PREEMPT_RT |