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Diffstat (limited to 'kernel/trace/preemptirq_delay_test.c')
-rw-r--r--kernel/trace/preemptirq_delay_test.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/trace/preemptirq_delay_test.c b/kernel/trace/preemptirq_delay_test.c
index f704390db9fc..d8765c952fab 100644
--- a/kernel/trace/preemptirq_delay_test.c
+++ b/kernel/trace/preemptirq_delay_test.c
@@ -5,12 +5,12 @@
* Copyright (C) 2018 Joel Fernandes (Google) <joel@joelfernandes.org>
*/
+#include <linux/trace_clock.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/kthread.h>
-#include <linux/ktime.h>
#include <linux/module.h>
#include <linux/printk.h>
#include <linux/string.h>
@@ -25,13 +25,13 @@ MODULE_PARM_DESC(test_mode, "Mode of the test such as preempt or irq (default ir
static void busy_wait(ulong time)
{
- ktime_t start, end;
- start = ktime_get();
+ u64 start, end;
+ start = trace_clock_local();
do {
- end = ktime_get();
+ end = trace_clock_local();
if (kthread_should_stop())
break;
- } while (ktime_to_ns(ktime_sub(end, start)) < (time * 1000));
+ } while ((end - start) < (time * 1000));
}
static int preemptirq_delay_run(void *data)