rcu: Remove prompt for RCU implementation
The RCU implementation is chosen based on PREEMPT and SMP config options and is not really a user-selectable choice. This commit removes the menu entry, given that there is not much point in calling something a choice when there is in fact no choice.. The TINY_RCU, TREE_RCU, and PREEMPT_RCU Kconfig options continue to be selected based solely on the values of the PREEMPT and SMP options. Signed-off-by: Pranith Kumar <bobby.prani@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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1 changed files with 6 additions and 12 deletions
18
init/Kconfig
18
init/Kconfig
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@ -465,13 +465,9 @@ endmenu # "CPU/Task time and stats accounting"
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menu "RCU Subsystem"
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choice
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prompt "RCU Implementation"
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default TREE_RCU
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config TREE_RCU
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bool "Tree-based hierarchical RCU"
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depends on !PREEMPT && SMP
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bool
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default y if !PREEMPT && SMP
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help
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This option selects the RCU implementation that is
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designed for very large SMP system with hundreds or
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@ -479,8 +475,8 @@ config TREE_RCU
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smaller systems.
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config PREEMPT_RCU
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bool "Preemptible tree-based hierarchical RCU"
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depends on PREEMPT
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bool
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default y if PREEMPT
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help
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This option selects the RCU implementation that is
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designed for very large SMP systems with hundreds or
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@ -491,16 +487,14 @@ config PREEMPT_RCU
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Select this option if you are unsure.
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config TINY_RCU
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bool "UP-only small-memory-footprint RCU"
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depends on !PREEMPT && !SMP
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bool
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default y if !PREEMPT && !SMP
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help
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This option selects the RCU implementation that is
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designed for UP systems from which real-time response
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is not required. This option greatly reduces the
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memory footprint of RCU.
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endchoice
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config RCU_EXPERT
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bool "Make expert-level adjustments to RCU configuration"
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default n
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