[PATCH 2/2] sched: fix unlikely use of sched_info_on()

From: Yi Wang
Date: Thu Jul 04 2019 - 07:48:21 EST


sched_info_on() is called with unlikely hint, however, the test
is to be true when make defconfig. So replace unlikely with
likely.

Signed-off-by: Yi Wang <wang.yi59@xxxxxxxxxx>
---
kernel/sched/stats.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h
index aa0de24..b7a7c4d 100644
--- a/kernel/sched/stats.h
+++ b/kernel/sched/stats.h
@@ -157,7 +157,7 @@ static inline void sched_info_dequeued(struct rq *rq, struct task_struct *t)
{
unsigned long long now = rq_clock(rq), delta = 0;

- if (unlikely(sched_info_on()))
+ if (likely(sched_info_on()))
if (t->sched_info.last_queued)
delta = now - t->sched_info.last_queued;
sched_info_reset_dequeued(t);
@@ -192,7 +192,7 @@ static void sched_info_arrive(struct rq *rq, struct task_struct *t)
*/
static inline void sched_info_queued(struct rq *rq, struct task_struct *t)
{
- if (unlikely(sched_info_on())) {
+ if (likely(sched_info_on())) {
if (!t->sched_info.last_queued)
t->sched_info.last_queued = rq_clock(rq);
}
@@ -239,7 +239,7 @@ static inline void sched_info_depart(struct rq *rq, struct task_struct *t)
static inline void
sched_info_switch(struct rq *rq, struct task_struct *prev, struct task_struct *next)
{
- if (unlikely(sched_info_on()))
+ if (likely(sched_info_on()))
__sched_info_switch(rq, prev, next);
}

--
1.8.3.1