Messages in this thread | | | Date | Tue, 13 Apr 2010 09:47:16 +0800 | From | Lai Jiangshan <> | Subject | Re: [PATCH 2/2] cpuhotplug: make get_online_cpus() scalability by using percpu counter |
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Peter Zijlstra wrote: > On Mon, 2010-04-12 at 20:30 +0800, Lai Jiangshan wrote: >> Because read-preference RWL will cause write site starvation. > > Sure, but why is that a problem? Hotplug should be a rare event,
> who cares if it takes a while to come through.
It is totally starvation, hotplug can not complete. I think it is a kind of DOS attack.
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