---

yaml --- r: 69124 b: refs/heads/master c: 91c234b h: refs/heads/master v: v3
git-mirror · Oct 15, 2007 · 2ed93c0 · 2ed93c0
1 parent 9a8b62c
commit 2ed93c0
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fb7dde37ece82e13de383afd7042c45df67a9d17
+refs/heads/master: 91c234b4e3419c786cac2d5b7a7b96443e512e3a
diff --git a/trunk/kernel/sched_fair.c b/trunk/kernel/sched_fair.c
@@ -828,6 +828,12 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p)
 		resched_task(curr);
 		return;
 	}
+	/*
+	 * Batch tasks do not preempt (their preemption is driven by
+	 * the tick):
+	 */
+	if (unlikely(p->policy == SCHED_BATCH))
+		return;
 
 	if (sched_feat(WAKEUP_PREEMPT)) {
 		while (!is_same_group(se, pse)) {