X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=Documentation%2Fadmin-guide%2Fkernel-parameters.rst;h=01ba293a2d70ffee254a69094fcd2ec984c9330d;hb=e24c567b7ecff1c8b6023a10d7f78256cef742c4;hp=3996b54158bf54671a85ffd34add19abd1e3711c;hpb=a3f53e8adfda814730c341ee39ce015a0abf69aa;p=linux-2.6-microblaze.git

diff --git a/Documentation/admin-guide/kernel-parameters.rst b/Documentation/admin-guide/kernel-parameters.rst
index 3996b54158bf..01ba293a2d70 100644
--- a/Documentation/admin-guide/kernel-parameters.rst
+++ b/Documentation/admin-guide/kernel-parameters.rst
@@ -76,6 +76,11 @@ to change, such as less cores in the CPU list, then N and any ranges using N
 will also change.  Use the same on a small 4 core system, and "16-N" becomes
 "16-3" and now the same boot input will be flagged as invalid (start > end).
 
+The special case-tolerant group name "all" has a meaning of selecting all CPUs,
+so that "nohz_full=all" is the equivalent of "nohz_full=0-N".
+
+The semantics of "N" and "all" is supported on a level of bitmaps and holds for
+all users of bitmap_parse().
 
 This document may not be entirely up to date and comprehensive. The command
 "modinfo -p ${modulename}" shows a current list of all parameters of a loadable