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-rw-r--r--Documentation/admin-guide/kernel-parameters.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index d8fc55aa9d44..10d86d938a23 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3269,6 +3269,13 @@
Lazy RCU callbacks are those which RCU can
prove do nothing more than free memory.
+ rcutree.rcu_kick_kthreads= [KNL]
+ Cause the grace-period kthread to get an extra
+ wake_up() if it sleeps three times longer than
+ it should at force-quiescent-state time.
+ This wake_up() will be accompanied by a
+ WARN_ONCE() splat and an ftrace_dump().
+
rcuperf.gp_exp= [KNL]
Measure performance of expedited synchronous
grace-period primitives.