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-rw-r--r--init/Kconfig12
1 files changed, 2 insertions, 10 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 1ce05a4cb5f6..d10f31dfa0b2 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -316,21 +316,13 @@ choice
prompt "RCU Implementation"
default TREE_RCU
-config CLASSIC_RCU
- bool "Classic RCU"
- help
- This option selects the classic RCU implementation that is
- designed for best read-side performance on non-realtime
- systems.
-
- Select this option if you are unsure.
-
config TREE_RCU
bool "Tree-based hierarchical RCU"
help
This option selects the RCU implementation that is
designed for very large SMP system with hundreds or
- thousands of CPUs.
+ thousands of CPUs. It also scales down nicely to
+ smaller systems.
config PREEMPT_RCU
bool "Preemptible RCU"