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sched: call update_curr() in task_tick_fair() 

update the fair-clock before using it for the key value.

[ mingo@elte.hu: small cleanups. ]

Signed-off-by: Ting Yang <tingy@cs.umass.edu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
hifive-unleashed-5.1
Ting Yang 2007-08-28 12:53:24 +02:00 committed by Ingo Molnar
parent f6cf891c4d
commit 7109c4429a
1 changed files with 3 additions and 2 deletions
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5
kernel/sched_fair.c
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@ -1094,10 +1094,11 @@ static void task_tick_fair(struct rq *rq, struct task_struct *curr)
static void task_new_fair(struct rq *rq, struct task_struct *p)
{
struct cfs_rq *cfs_rq = task_cfs_rq(p);
struct sched_entity *se = &p->se;
struct sched_entity *se = &p->se, *curr = cfs_rq_curr(cfs_rq);
sched_info_queued(p);
update_curr(cfs_rq);
update_stats_enqueue(cfs_rq, se);
/*
* Child runs first: we let it run before the parent
@ -1105,7 +1106,7 @@ static void task_new_fair(struct rq *rq, struct task_struct *p)
* it will preempt the parent:
*/
p->se.fair_key = current->se.fair_key -
niced_granularity(&rq->curr->se, sched_granularity(cfs_rq)) - 1;
niced_granularity(curr, sched_granularity(cfs_rq)) - 1;
/*
* The first wait is dominated by the child-runs-first logic,
* so do not credit it with that waiting time yet: