From: Shawn Guo <shawn.guo@linaro.org>
Date: Fri, 7 Sep 2012 00:24:27 +0000 (+1000)
Subject: kernel/sys.c: call disable_nonboot_cpus() in kernel_restart()
X-Git-Tag: next-20120910~2^2~89
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ae6078925dd89003893cb733075ff785c19b0d60;p=karo-tx-linux.git

kernel/sys.c: call disable_nonboot_cpus() in kernel_restart()

As kernel_power_off() calls disable_nonboot_cpus(), we may also want to
have kernel_restart() call disable_nonboot_cpus().  Doing so can help
machines that require boot cpu be the last alive cpu during reboot to
survive with kernel restart.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/kernel/sys.c b/kernel/sys.c
index 241507f23eca..6fab59a1fc24 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -368,6 +368,7 @@ EXPORT_SYMBOL(unregister_reboot_notifier);
 void kernel_restart(char *cmd)
 {
 	kernel_restart_prepare(cmd);
+	disable_nonboot_cpus();
 	if (!cmd)
 		printk(KERN_EMERG "Restarting system.\n");
 	else