> + rcu_read_lock(); > + hlist_for_each_entry_rcu(bond, &io_mm->devices, mm_node) > + io_mm->ops->invalidate(bond->sva.dev, io_mm->pasid, io_mm->ctx, > + start, end - start); > + rcu_read_unlock(); > +} What is the reason that the devices don't register their own notifiers? This kinds of multiplexing is always rather messy, and you do it for all the methods.
