On 09/11/2016 15:00, Xiao Guangrong wrote: >> >> The *group* driver doesn't need it indeed. The mdev vendor driver >> however does, so it will use kvm_get_kvm under its own mutex. That is: > > Yes, own mutex is definitely can work.:) It is vendor driver internal > operation and it depends on the internal implementation. > > My idea is that we can make sure the KVM instance is valid before calling > DETACH callback. So if we can properly release all the resource associated > with the kvm instance in this callback, it is okay without additional kvm > ref. That should work if they have their own mutex, but please add a comment. :) Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
