[PATCH] timers: avoid an unnecessory iteration in __run_timers()

[Zhenzhong Duan]

When we know next expired timer is later than current jiffies, we don't need to
call collect_expired_timers() again checking empty hlists.

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx>
---
 kernel/time/timer.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index f2674a0..02be824 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -1560,8 +1560,7 @@ static int collect_expired_timers(struct timer_base *base,
 		 * jiffies, otherwise forward to the next expiry time:
 		 */
 		if (time_after(next, jiffies)) {
-			/* The call site will increment clock! */
-			base->clk = jiffies - 1;
+			base->clk = jiffies;
 			return 0;
 		}
 		base->clk = next;
-- 
1.7.3