1 files changed, 13 insertions, 2 deletions

diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index 5ea631742dbc..8fa7040247ad 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -50,6 +50,16 @@ void touch_softlockup_watchdog(void)
 }
 EXPORT_SYMBOL(touch_softlockup_watchdog);
 
+void touch_all_softlockup_watchdogs(void)
+{
+        int cpu;
+
+        /* Cause each CPU to re-update its timestamp rather than complain */
+        for_each_online_cpu(cpu)
+                per_cpu(touch_timestamp, cpu) = 0;
+}
+EXPORT_SYMBOL(touch_all_softlockup_watchdogs);
+
 /*
  * This callback runs from the timer interrupt, and checks
  * whether the watchdog thread has hung or not:
@@ -61,9 +71,10 @@ void softlockup_tick(void)
         unsigned long print_timestamp;
         unsigned long now;
 
-        /* watchdog task hasn't updated timestamp yet */
-        if (touch_timestamp == 0)
+        if (touch_timestamp == 0) {
+                touch_softlockup_watchdog();
                 return;
+        }
 
         print_timestamp = per_cpu(print_timestamp, this_cpu);