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Subject[PATCH] timers: avoid an unnecessory iteration in __run_timers()
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@oracle.com>
---
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
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