From fb3dacce075441d4a157bb63b96bf666084a99b1 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 3 Jul 2009 08:30:30 -0500 Subject: [PATCH] RCU: Force PREEMPT_RCU for PREEMPT-RT commit b526aded4c39a83d7042b9b16dee342e1f600795 in tip. PREEMPT_RT relies on PREEMPT_RCU - only allow RCU to be configured interactively in the !PREEMPT_RT case. [PG: add TINY_RCU to blacklist] Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner Signed-off-by: Paul Gortmaker --- init/Kconfig | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index eb77e8c..c1fa035 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -328,6 +328,7 @@ choice config TREE_RCU bool "Tree-based hierarchical RCU" + depends on !PREEMPT_RT help This option selects the RCU implementation that is designed for very large SMP system with hundreds or @@ -346,7 +347,7 @@ config TREE_PREEMPT_RCU config TINY_RCU bool "UP-only small-memory-footprint RCU" - depends on !SMP + depends on !SMP && !PREEMPT_RT help This option selects the RCU implementation that is designed for UP systems from which real-time response -- 1.7.0.4