From 31aaa98c248da766ece922bbbe8cc78cfd0bc920 Mon Sep 17 00:00:00 2001
From: David Ahern <david.ahern@oracle.com>
Date: Thu, 19 Mar 2015 16:06:53 -0400
Subject: [PATCH] sparc: Touch NMI watchdog when walking cpus and calling
 printk

With the increase in number of CPUs calls to functions that dump
output to console (e.g., arch_trigger_all_cpu_backtrace) can take
a long time to complete. If IRQs are disabled eventually the NMI
watchdog kicks in and creates more havoc. Avoid by telling the NMI
watchdog everything is ok.

Signed-off-by: David Ahern <david.ahern@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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