| commit | 0970d2992dfd7d5ec2c787417cf464f01eeaf42a | [log] [tgz] |
|---|---|---|
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | Mon Feb 15 14:45:54 2010 +0100 |
| committer | Thomas Gleixner <tglx@linutronix.de> | Tue Feb 16 15:13:59 2010 +0100 |
| tree | 5f0077dcafda733ef3f1e41d218a473978ce6a9f | |
| parent | 9000f05c6d1607f79c0deacf42b09693be673f4c [diff] |
sched: Fix race between ttwu() and task_rq_lock() Thomas found that due to ttwu() changing a task's cpu without holding the rq->lock, task_rq_lock() might end up locking the wrong rq. Avoid this by serializing against TASK_WAKING. Reported-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1266241712.15770.420.camel@laptop> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>