sched: wakeup preemption fix

wakeup preemption fix: do not make it dependent on p->prio. Preemption purely depends on ->vruntime. This improves preemption in mixed-nice-level workloads. Signed-off-by: Ingo Molnar <mingo@elte.hu>
git-mirror · Nov 9, 2007 · 8bc6767 · 8bc6767
1 parent 3e3e13f
commit 8bc6767
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
@@ -863,10 +863,8 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p)
 		if (unlikely(se->load.weight != NICE_0_LOAD))
 			gran = calc_delta_fair(gran, &se->load);
 
-		if (delta > gran) {
-			if (p->prio < curr->prio)
-				resched_task(curr);
-		}
+		if (delta > gran)
+			resched_task(curr);
 	}
 }