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Subject[PATCH 6/7] sched: Delete rq::skip_clock_update == -1
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From: Kirill Tkhai <ktkhai@parallels.com>

Idle class task is always queued, so we can safely remove "-1" case here.

Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
---
kernel/sched/core.c | 2 +-
kernel/sched/rt.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a40d6e1..7d0d023 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2812,7 +2812,7 @@ static void __sched __schedule(void)
switch_count = &prev->nvcsw;
}

- if (task_on_rq_queued(prev) || rq->skip_clock_update < 0)
+ if (task_on_rq_queued(prev))
update_rq_clock(rq);

next = pick_next_task(rq, prev);
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index de356b0..828eda0 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -835,7 +835,7 @@ static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun)
* lest wakeup -> unthrottle time accumulate.
*/
if (rt_rq->rt_nr_running && rq->curr == rq->idle)
- rq->skip_clock_update = -1;
+ rq->skip_clock_update = 0;
}
if (rt_rq->rt_time || rt_rq->rt_nr_running)
idle = 0;


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