Acquiring a lock on the same CPU that holds it - what can be done?

[Andriy Gapon]

on 09/01/2014 07:31 Konstantin Belousov said the following:
> I.e. you propose to extend the prioriry propagation to all cases of lock
> acquisition.  This is not quite correct as well, but now in the other
> direction, since it prevents non-contending high-priority thread from
> running.

Yes.

> I think a good experiment would be to add critical_enter/critical_exit
> to non-sleepable locks and see.

Yes.

-- 
Andriy Gapon