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Diffstat (limited to 'kernel/softlockup.c')
-rw-r--r--kernel/softlockup.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index a3a0b239b7f7..6b682d86bddf 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -64,12 +64,17 @@ static unsigned long get_timestamp(int this_cpu)
return cpu_clock(this_cpu) >> 30LL; /* 2^30 ~= 10^9 */
}
-void touch_softlockup_watchdog(void)
+static void __touch_softlockup_watchdog(void)
{
int this_cpu = raw_smp_processor_id();
__raw_get_cpu_var(touch_timestamp) = get_timestamp(this_cpu);
}
+
+void touch_softlockup_watchdog(void)
+{
+ __raw_get_cpu_var(touch_timestamp) = 0;
+}
EXPORT_SYMBOL(touch_softlockup_watchdog);
void touch_all_softlockup_watchdogs(void)
@@ -103,7 +108,7 @@ void softlockup_tick(void)
}
if (touch_timestamp == 0) {
- touch_softlockup_watchdog();
+ __touch_softlockup_watchdog();
return;
}
@@ -118,7 +123,7 @@ void softlockup_tick(void)
/* do not print during early bootup: */
if (unlikely(system_state != SYSTEM_RUNNING)) {
- touch_softlockup_watchdog();
+ __touch_softlockup_watchdog();
return;
}
@@ -243,7 +248,7 @@ static int watchdog(void *__bind_cpu)
sched_setscheduler(current, SCHED_FIFO, &param);
/* initialize timestamp */
- touch_softlockup_watchdog();
+ __touch_softlockup_watchdog();
set_current_state(TASK_INTERRUPTIBLE);
/*
@@ -252,7 +257,7 @@ static int watchdog(void *__bind_cpu)
* debug-printout triggers in softlockup_tick().
*/
while (!kthread_should_stop()) {
- touch_softlockup_watchdog();
+ __touch_softlockup_watchdog();
schedule();
if (kthread_should_stop())