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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2014-03-21 20:19:05 +0100
committerGary S. Robertson <gary.robertson@linaro.org>2014-05-07 08:56:22 -0500
commit030479e3c4814a4bea8814d8e49874930d86a849 (patch)
tree53422cab6bdad11550a2feb8edbd2c3415c68da6
parentd08afe13ae8f11455ccb6dc291cf53b7d6e52e35 (diff)
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 <bigeasy@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
-rw-r--r--init/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/init/Kconfig b/init/Kconfig
index e1cee27f2759..4c384f9bfbd3 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -604,7 +604,7 @@ 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.