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From cc8e003f3cd7e0a5c14fbaecd8efdfe88115e905 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 3 Jul 2009 08:44:26 -0500
Subject: [PATCH] sched:-fix dequeued race
commit 8002ed49acefff365937de2a05f8392dfe044e0e in tip.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
kernel/sched.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/kernel/sched.c b/kernel/sched.c
index a39592e..ff58409 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3662,7 +3662,8 @@ void scheduler_tick(void)
raw_spin_lock(&rq->lock);
update_rq_clock(rq);
update_cpu_load(rq);
- curr->sched_class->task_tick(rq, curr, 0);
+ if (curr != rq->idle && curr->se.on_rq)
+ curr->sched_class->task_tick(rq, curr, 0);
raw_spin_unlock(&rq->lock);
perf_event_task_tick(curr);
--
1.7.0.4
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