[no subject]

[Dong Zhu]

We can enable|disable timer statistics collection (via echo [1|0] >
/proc/timers_stats), this patch adds a 'status' line to display the
current timer collection status.

Signed-off-by: Dong Zhu <bluezhudong@xxxxxxxxx>
---
 kernel/time/timer_stats.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
index 0b537f2..bac5e91 100644
--- a/kernel/time/timer_stats.c
+++ b/kernel/time/timer_stats.c
@@ -303,6 +303,10 @@ static int tstats_show(struct seq_file *m, void *v)
 	if (atomic_read(&overflow_count))
 		seq_printf(m, "Overflow: %d entries\n",
 			atomic_read(&overflow_count));
+	if (timer_stats_active)
+		seq_puts(m, "Status: collection active\n");
+	else
+		seq_puts(m, "Status: collection disabled\n");
 
 	for (i = 0; i < nr_entries; i++) {
 		entry = entries + i;
-- 
1.7.11.7


-- 
Best Regards,
Dong Zhu
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