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-rw-r--r--Documentation/admin-guide/kernel-parameters.txt8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 089f4c5f8225..d1b0542b8564 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4805,6 +4805,14 @@
period to instead use normal non-expedited
grace-period processing.
+ rcupdate.rcu_task_collapse_lim= [KNL]
+ Set the maximum number of callbacks present
+ at the beginning of a grace period that allows
+ the RCU Tasks flavors to collapse back to using
+ a single callback queue. This switching only
+ occurs when rcupdate.rcu_task_enqueue_lim is
+ set to the default value of -1.
+
rcupdate.rcu_task_contend_lim= [KNL]
Set the minimum number of callback-queuing-time
lock-contention events per jiffy required to