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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2014-03-21 20:19:05 +0100
committerSteven Rostedt <rostedt@rostedt.homelinux.com>2014-04-30 12:19:34 -0400
commit1cf37a163e7b0adebf12e1ddf1f03a0781f23d8e (patch)
tree5952bea96e611a4871326372b78bab83e6ce5d78
parent6c28608fe2c0abe8c320d46aaab0f666e74335c9 (diff)
downloadlinux-rt-1cf37a163e7b0adebf12e1ddf1f03a0781f23d8e.tar.gz
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 d0590c7c4595..34050fea6b74 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -603,7 +603,7 @@ 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.