From ebdd922cec8676ab24dc126416d96551f2196fc2 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Fri, 21 Mar 2014 20:19:05 +0100 Subject: rcu: make RCU_BOOST default on RT Since it is no longer invoked from the softirq people run into OOM more often if the priority of the RCU thread is too low. Making boosting default on RT should help in those case and it can be switched off if someone knows better. Cc: stable-rt@vger.kernel.org Signed-off-by: Sebastian Andrzej Siewior diff --git a/init/Kconfig b/init/Kconfig index 4be3c6c..836b34e 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -642,7 +642,7 @@ config TREE_RCU_TRACE config RCU_BOOST bool "Enable RCU priority boosting" depends on RT_MUTEXES && PREEMPT_RCU - default n + default y if PREEMPT_RT_FULL help This option boosts the priority of preempted RCU readers that block the current preemptible RCU grace period for too long. -- cgit v0.10.2