nmi_watchdog: Tell the world we're active

Peter Zijlstra · Ingo Molnar · commit 5671a10e2bc7 · 2010-03-02T15:02:05.000+01:00
Because I was wondering why perf stat wasn't working as expected..

Signed-off-by: Peter Zijlstra &lt;a.p.zijlstra@chello.nl&gt;
Cc: Don Zickus &lt;dzickus@redhat.com&gt;
LKML-Reference: &lt;new-submission&gt;
Signed-off-by: Ingo Molnar &lt;mingo@elte.hu&gt;
diff --git a/kernel/nmi_watchdog.c b/kernel/nmi_watchdog.c
@@ -244,6 +244,8 @@ static int __init spawn_nmi_watchdog_task(void)
 	if (nonmi_watchdog)
 		return 0;
 
+	printk(KERN_INFO "NMI watchdog enabled, takes one hw-pmu counter.\n");
+
 	err = cpu_callback(&cpu_nfb, CPU_UP_PREPARE, cpu);
 	if (err == NOTIFY_BAD) {
 		BUG();
