nohz: Ensure full dynticks CPUs are RCU nocbs

[deliverable/linux.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 887b29708447e9d690a2796c68c4f177c3c754ba..4865e9bfd08d0e9c294d723e2a6ed757f21573f4 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1918,6 +1918,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        the specified list of CPUs whose tick will be stopped
                        whenever possible. The boot CPU will be forced outside
                        the range to maintain the timekeeping.
+                       The CPUs in this range must also be included in the
+                       rcu_nocbs= set.
 
        noiotrap        [SH] Disables trapped I/O port accesses.