Re: [PATCH] sched/deadline/rtmutex: Fix a PI crash for deadline tasks

[Peter Zijlstra]

On Tue, Apr 12, 2016 at 11:08:04AM +0800, Xunlei Pang wrote:
> I spotted another issue, we access pi_task without any lock in enqueue_task_dl(),

OK, so I'm on the road and entirely jetlagged, but how can
enqueue_task_dl() not have rq->lock held?