1 files changed, 13 insertions, 0 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 75205391b335..bad5987c4727 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1284,6 +1284,19 @@ running once the system is up.
                         New name for the ramdisk parameter.
                         See Documentation/ramdisk.txt.
 
+        rcu.blimit=     [KNL,BOOT] Set maximum number of finished
+                        RCU callbacks to process in one batch.
+
+        rcu.qhimark=    [KNL,BOOT] Set threshold of queued
+                        RCU callbacks over which batch limiting is disabled.
+
+        rcu.qlowmark=   [KNL,BOOT] Set threshold of queued
+                        RCU callbacks below which batch limiting is re-enabled.
+
+        rcu.rsinterval= [KNL,BOOT,SMP] Set the number of additional
+                        RCU callbacks to queued before forcing reschedule
+                        on all cpus.
+
         rdinit=         [KNL]
                         Format: <full_path>
                         Run specified binary instead of /init from the ramdisk,