Messages in this thread | | | Subject | Re: [PATCH] lglock: make lg_lock_global() actually lock globally | From | Peter Zijlstra <> | Date | Thu, 26 Aug 2010 13:45:39 +0200 |
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On Thu, 2010-08-26 at 21:38 +1000, Nick Piggin wrote: > I think for CPU plug, stop_machine is reasonable (especially > considering it is required in unload, which means any frequent > amount of cpu plug activity already will require stop_machine to > run anyway).
How is it required?
Its currently implemented as such, and its sure a lot easier to do that way, but I could imagine that unplugging a CPU could be done without it.
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