On Mon, 04 Mar 2019 13:47:47 +0100, Toke Høiland-Jørgensen wrote: > In an earlier version I had a namespace enter/exit notifier in devmap.c > as well, to react to new namespaces. And that notifier has a comment > about avoiding calls to synchronize_rcu(). But since this version > doesn't actually need that, maybe I can just keep using direct calls and > synchronize_rcu() and avoid the callback? I'm a bit worried about adding > both synchronize_rcu() and cond_resched() as a possible side effect of > every call to bpf_prog_put(), though; so maybe it's better to move the > cleanup somewhere it's actually safe to call cond_resched(); what would > that be, a workqueue?
Workqueue would be my go to.
