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authorIngo Molnar <mingo@elte.hu>2008-06-25 12:28:47 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-25 12:28:47 +0200
commitf4628e644c34d9e6242ea18487b2ed58ee04e3eb (patch)
tree3e1cd355fb6959d5b9f569342e4533a48e53aa11 /kernel/softlockup.c
parentcb9aa97c21c59ad01c9514d7faf45dc166fba226 (diff)
parent543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff)
Merge branch 'linus' into tracing/mmiotrace-mergefixupstip-tracing-mmiotrace-mergefixups-2008-06-25_10.28_Wed
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 01b6522fd92b..c828c2339cc9 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -49,12 +49,17 @@ 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)
@@ -80,7 +85,7 @@ void softlockup_tick(void)
unsigned long now;
if (touch_timestamp == 0) {
- touch_softlockup_watchdog();
+ __touch_softlockup_watchdog();
return;
}
@@ -95,7 +100,7 @@ void softlockup_tick(void)
/* do not print during early bootup: */
if (unlikely(system_state != SYSTEM_RUNNING)) {
- touch_softlockup_watchdog();
+ __touch_softlockup_watchdog();
return;
}
@@ -214,7 +219,7 @@ 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);
/*
@@ -223,7 +228,7 @@ 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())