From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date: Wed, 5 Oct 2011 00:43:24 +0000 (+1100)
Subject: stop_machine-make-stop_machine-safe-and-efficient-to-call-early-v3.
X-Git-Tag: next-20111011~1^2~115
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=169152880bc0a841c0ddb93f61d181462d8e8331;p=karo-tx-linux.git

stop_machine-make-stop_machine-safe-and-efficient-to-call-early-v3.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@google.com>
---

diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 0ee58f4545ab..880749c78ba6 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -490,8 +490,9 @@ int __stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus)
 
 	if (!stop_machine_initialized) {
 		/*
-		 * Handle the case where stop_machine() is called early in boot
-		 * before SMP startup.
+		 * Handle the case where stop_machine() is called
+		 * early in boot before stop_machine() has been
+		 * initialized.
 		 */
  		unsigned long flags;
 		int ret;