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sched: clean up the wakeup preempt check 

clean up the wakeup preemption check. No code changed:

   text    data     bss     dec     hex filename
  44227    3326      36   47589    b9e5 sched.o.before
  44227    3326      36   47589    b9e5 sched.o.after

Signed-off-by: Ingo Molnar <mingo@elte.hu>
hifive-unleashed-5.1
Ingo Molnar 2007-11-09 22:39:39 +01:00
parent 8bc6767acb
commit 77d9cc44b5
1 changed files with 13 additions and 12 deletions
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25
kernel/sched_fair.c
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@ -852,20 +852,21 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p)
if (unlikely(p->policy == SCHED_BATCH))
return;
if (sched_feat(WAKEUP_PREEMPT)) {
while (!is_same_group(se, pse)) {
se = parent_entity(se);
pse = parent_entity(pse);
}
if (!sched_feat(WAKEUP_PREEMPT))
return;
delta = se->vruntime - pse->vruntime;
gran = sysctl_sched_wakeup_granularity;
if (unlikely(se->load.weight != NICE_0_LOAD))
gran = calc_delta_fair(gran, &se->load);
if (delta > gran)
resched_task(curr);
while (!is_same_group(se, pse)) {
se = parent_entity(se);
pse = parent_entity(pse);
}
delta = se->vruntime - pse->vruntime;
gran = sysctl_sched_wakeup_granularity;
if (unlikely(se->load.weight != NICE_0_LOAD))
gran = calc_delta_fair(gran, &se->load);
if (delta > gran)
resched_task(curr);
}
static struct task_struct *pick_next_task_fair(struct rq *rq)