Re: [PATCH PREEMPT RT] rt-mutex: fix deadlock in device mapper

From: Mike Galbraith
Date: Tue Nov 21 2017 - 16:21:15 EST

On Tue, 2017-11-21 at 14:56 -0500, Mikulas Patocka wrote:
> If we don't have any reason why it is needed to unplug block requests when
> a spinlock is taken - so let's not do this.

That's perfectly fine.  I guess I shouldn't have even mentioned having
encountered unplug at mutex being insufficient.