Re: [PATCH] lglock: make lg_lock_global() actually lock globally

[Peter Zijlstra]

On Fri, 2010-08-27 at 09:57 +0200, Peter Zijlstra wrote:
> 
> 
> There's a large three lettered company that's promoting cpu hotplug use
> for power management, they hotplug at an astonishing rate.
> 
> I've been saying hotplug isn't for that, and its a terrible slow path
> and disrupts your whole machine etc.. they don't seem to care much. 

Oh, and the virt community seems to want (or is) doing the same silly
thing.
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