Re: RFC: x86: cap iomem_resource to addressable physical memory

[H. Peter Anvin]

Pavel Machek wrote:
> Ok... and is there enough locking in there so that it is actually ok
> to change mask during hotplug? (Is it okay because it is single long
> and all the writers are somehow serialized by hotplug mechanism?)
> 									Pavel

Making it a locked reference probably would be a good idea (although I 
personally think it will never actually matter in practice).  Although 
on 32 bits (PAE) it can be more than one long, it doesn't matter because 
only the upper long can actually be modified.  It does, however, 
complicate the actual code somewhat... I'll look at it tomorrow.

	-hpa

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