Messages in this thread | | | Date | Thu, 4 Apr 2019 11:38:59 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH v2 3/5] locking/qspinlock: Introduce CNA into the slow path of qspinlock |
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On Thu, Apr 04, 2019 at 07:05:24AM +0200, Juergen Gross wrote:
> Without PARAVIRT_SPINLOCK this would be just an alternative() then?
That could maybe work yes. This is all early enough.
> Maybe the resulting code would be much more readable if we'd just > make PARAVIRT_SPINLOCK usable without the other PARAVIRT hooks? So > splitting up PARAVIRT into PARAVIRT_GUEST (timer hooks et al) and > the patching infrastructure, with PARAVIRT_GUEST and PARAVIRT_SPINLOCK > selecting PARAVIRT, and PARAVIRT_XXL selecting PARAVIRT_GUEST.
Well, ideally we'll get static_call() sorted and use that.
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