Re: [RFC+PATCH] Infiniband hfi1 + PREEMPT_RT_FULL issues

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On Tue, 26 Sep 2017 15:28:00 -0300
Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> wrote:

> So what happens is that infrastructure in the rt patch eventually lands
> upstream, then this difference ceases to exist.
> 
> Steven, are there plans for local locks to go upstream?
> 

Yes, but they don't make sense unless we get PREEMPT_RT (sleeping
spinlocks) upstream. Otherwise, they will just be another name for
preempt_disable().

That said, there is some rational for getting them upsteam before
sleeping spinlocks, and that is to annotate what a preempt_disable() is
trying to protect.

-- Steve
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