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authorPaul E. McKenney <paul.mckenney@linaro.org>2011-02-07 12:47:15 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2011-05-05 23:16:55 -0700
commit27f4d28057adf98750cf863c40baefb12f5b6d21 (patch)
treea66584d2cb68cebda327313f78b8f4eb602ed4ef /init/Kconfig
parentrcu: move TREE_RCU from softirq to kthread (diff)
downloadlinux-dev-27f4d28057adf98750cf863c40baefb12f5b6d21.tar.xz
linux-dev-27f4d28057adf98750cf863c40baefb12f5b6d21.zip
rcu: priority boosting for TREE_PREEMPT_RCU
Add priority boosting for TREE_PREEMPT_RCU, similar to that for TINY_PREEMPT_RCU. This is enabled by the default-off RCU_BOOST kernel parameter. The priority to which to boost preempted RCU readers is controlled by the RCU_BOOST_PRIO kernel parameter (defaulting to real-time priority 1) and the time to wait before boosting the readers who are blocking a given grace period is controlled by the RCU_BOOST_DELAY kernel parameter (defaulting to 500 milliseconds). Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to '')
-rw-r--r--init/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig
index d886b1e9278e..2d964fa40f5b 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -485,7 +485,7 @@ config TREE_RCU_TRACE
config RCU_BOOST
bool "Enable RCU priority boosting"
- depends on RT_MUTEXES && TINY_PREEMPT_RCU
+ depends on RT_MUTEXES && PREEMPT_RCU
default n
help
This option boosts the priority of preempted RCU readers that