Date: Tue, 5 Apr 2016 13:32:33 +0200
From: Peter Zijlstra <peterz@infradead.org>
To: xlpang@redhat.com
Cc: linux-kernel@vger.kernel.org, Juri Lelli <juri.lelli@arm.com>,
        Ingo Molnar <mingo@redhat.com>, Steven Rostedt <rostedt@goodmis.org>,
        Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] sched/deadline/rtmutex: Fix a PI crash for deadline tasks
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On Tue, Apr 05, 2016 at 06:48:38PM +0800, Xunlei Pang wrote:
> This is cool, I think we should also init "pi_task" properly for INIT_MUTEX and fork,
> otherwise looks good to me :-)

Indeed..

> Besides, do you think we can kill "pi_waiters_leftmost" from task_struct, as we
> can easily get it from "pi_waiters"?

I don't quickly see a way to do that, different locking rules govern the
two.. which was the whole problem we started with :/

> I will test it further with these new changes soon.

Thanks!