> This approach is prone to priority-inversion Priority inversion is one of the main things that are addressed by the PREEMPT_RT patchset - without a fix to th

> This approach is prone to priority-inversion Priority inversion is one of the main things that are addressed by the PREEMPT_RT patchset - without a fix to the priority inversion problem, you don't really have a RT system. Aside from that, I agree that we should move towards having async interfaces as the default whenever slow I/O is a realistic possibility. I'm not sure how many people actually use something like PAM-LDAP, though.