[libbsd] EPOCH(9): Fix epoch call and drain

[Gedare Bloom]

On Tue, Jun 15, 2021 at 9:12 AM Sebastian Huber
<sebastian.huber at embedded-brains.de> wrote:
>
> On 15/06/2021 17:10, Gedare Bloom wrote:
> > Does this add a constraint in libbsd that it only works with SMP for
> > schedulers that support thread pinning? Is that a problem at all? Last
> > I checked, not all the SMP schedulers have pinning. Actually, I think
> > only the EDF SMP scheduler supports pinning.
>
> In SMP configurations, a scheduler with thread pinning support is
> required by libbsd. This is not a new constraint. The thread pinning
> support was specifically implemented to support EPOCH(9).
>
Is this documented for users to understand they need to use EDF SMP
(or add thread pinning support) to use libbsd with SMP?

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