>From f41628c61d8a9172677ba33a55b61e37ce28f7a6 Mon Sep 17 00:00:00 2001 From: Dong Zhu <[email protected]> Date: Thu, 10 Oct 2013 10:38:13 +0800
When we stop timer statistics collection (via echo 0 > /proc/timers_stats), the statistics data is still exported as if it were correct, which can cause applicaitons to misuse the statistics. This patch resets the statistics when we stop collecting them, to avoid this problem. Signed-off-by: Dong Zhu <[email protected]> --- kernel/time/timer_stats.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c index 0b537f2..43f05e7 100644 --- a/kernel/time/timer_stats.c +++ b/kernel/time/timer_stats.c @@ -371,6 +371,7 @@ static ssize_t tstats_write(struct file *file, const char __user *buf, switch (ctl[0]) { case '0': if (timer_stats_active) { + reset_entries(); timer_stats_active = 0; time_stop = ktime_get(); sync_access(); -- 1.7.11.7 -- Best Regards, Dong Zhu -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
