Re: [PATCH] device: separate all subsys mutexes (was: Re: [BUG] potential deadlock led by cpu_hotplug lock (memcg involved))

Peter Zijlstra
2013-03-12T15:28:25Z

On Tue, 2013-03-12 at 14:05 +0100, Michal Hocko wrote:
> @@ -111,17 +111,17 @@ struct bus_type {
> struct iommu_ops *iommu_ops;
>
> struct subsys_private *p;
> + struct lock_class_key __key;
> };

Is struct bus_type constrained to static storage or can people go an
allocate this stuff dynamically? If so, this patch is broken.