rcu: Update documentation regarding kthread_prio cmdline parameter

Inform readers that the priority of RCU no-callback threads will also be boosted. Signed-off-by: Alison Chaiken <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]>
KenHV · Apr 9, 2022 · de96e55 · de96e55
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commit de96e55
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diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
@@ -4509,6 +4509,8 @@
 			(the least-favored priority).  Otherwise, when
 			RCU_BOOST is not set, valid values are 0-99 and
 			the default is zero (non-realtime operation).
+			When RCU_NOCB_CPU is set, also adjust the
+			priority of NOCB callback kthreads.
 
 	rcutree.rcu_nocb_gp_stride= [KNL]
 			Set the number of NOCB callback kthreads in