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-rw-r--r--Documentation/kernel-parameters.txt6
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diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 4609e81dbc3..231698feadd 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1913,6 +1913,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
Valid arguments: on, off
Default: on
+ nohz_extended= [KNL,BOOT]
+ In kernels built with CONFIG_NO_HZ_EXTENDED=y, set
+ the specified list of CPUs whose tick will be stopped
+ whenever possible. You need to keep at least one online
+ CPU outside the range to maintain the timekeeping.
+
noiotrap [SH] Disables trapped I/O port accesses.
noirqdebug [X86-32] Disables the code which attempts to detect and