From: Jiri Kosina <jkosina@suse.cz>
Date: Wed, 21 Mar 2012 23:34:02 +0000 (-0700)
Subject: thp: documentation: 'transparent_hugepage=' can also be specified on cmdline
X-Git-Tag: v3.4-rc1~158^2~53
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=fcf4d8212a8f38334679e82ff14532b908b4b451;p=platform%2Fkernel%2Flinux-stable.git

thp: documentation: 'transparent_hugepage=' can also be specified on cmdline

The behavior of THP can either be toggled through sysfs in runtime or
using a kernel cmdline parameter 'transparent_hugepage='.  Document the
latter in kernel-parameters.txt

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 8cadb75..7986d79 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2635,6 +2635,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			to facilitate early boot debugging.
 			See also Documentation/trace/events.txt
 
+	transparent_hugepage=
+			[KNL]
+			Format: [always|madvise|never]
+			Can be used to control the default behavior of the system
+			with respect to transparent hugepages.
+			See Documentation/vm/transhuge.txt for more details.
+
 	tsc=		Disable clocksource stability checks for TSC.
 			Format: <string>
 			[x86] reliable: mark tsc clocksource as reliable, this