Re: lockdep trace from posix timers

[Oleg Nesterov]

On 08/20, Peter Zijlstra wrote:
>
> On Mon, 2012-08-20 at 17:43 +0200, Oleg Nesterov wrote:
> > BTW, do you think it is really important to try to avoid ->pi_lock?
>
> It is for me, I'm doing task_work_add() from under rq->lock.. :/ I could
> fudge around and delay, but not having to would be nice.

Aha, got it.

At first glance, bit_spin_lock() can work. I'll try to make the patches
tomorrow.

Oleg.

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