sched: monitor clock underflows in /proc/sched_debug

We monitor clock overflows, let's also monitor clock underflows.

Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 1 insertions, 0 deletions

diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 80fbbfc04290..9e5de098d471 100644
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -179,6 +179,7 @@ static void print_cpu(struct seq_file *m, int cpu)
         PN(prev_clock_raw);
         P(clock_warps);
         P(clock_overflows);
+        P(clock_underflows);
         P(clock_deep_idle_events);
         PN(clock_max_delta);
         P(cpu_load[0]);