rk3568 rt init

hc

2023-11-06 e3e12f52b214121840b44c91de5b3e5af5d3eb84

 kernel/kernel/rcu/Kconfig
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@@ -172,7 +172,7 @@
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 config RCU_FAST_NO_HZ
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 	bool "Accelerate last non-dyntick-idle CPU's grace periods"
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-	depends on NO_HZ_COMMON && SMP && RCU_EXPERT
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+	depends on NO_HZ_COMMON && SMP && RCU_EXPERT && !PREEMPT_RT_FULL
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 	default n
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 	help
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 	  This option permits CPUs to enter dynticks-idle state even if
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@@ -190,8 +190,8 @@
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 config RCU_BOOST
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 	bool "Enable RCU priority boosting"
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-	depends on RT_MUTEXES && PREEMPT_RCU && RCU_EXPERT
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-	default n
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+	depends on (RT_MUTEXES && PREEMPT_RCU && RCU_EXPERT) || PREEMPT_RT_FULL
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+	default y if PREEMPT_RT_FULL
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 	help
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 	  This option boosts the priority of preempted RCU readers that
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 	  block the current preemptible RCU grace period for too long.