hrtimer: show the timer ranges in /proc/timer_list

to help debugging and visibility of timer ranges, show them
in the existing timer list in /proc/timer_list

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index 5224a3215fb7..122ee751d2d1 100644
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -65,8 +65,10 @@ print_timer(struct seq_file *m, struct hrtimer *timer, int idx, u64 now)
         SEQ_printf(m, ", %s/%d", tmp, timer->start_pid);
 #endif
         SEQ_printf(m, "\n");
-        SEQ_printf(m, " # expires at %Lu nsecs [in %Ld nsecs]\n",
+        SEQ_printf(m, " # expires at %Lu-%Lu nsecs [in %Ld to %Ld nsecs]\n",
+                (unsigned long long)ktime_to_ns(hrtimer_get_softexpires(timer)),
                 (unsigned long long)ktime_to_ns(hrtimer_get_expires(timer)),
+                (long long)(ktime_to_ns(hrtimer_get_softexpires(timer)) - now),
                 (long long)(ktime_to_ns(hrtimer_get_expires(timer)) - now));
 }