On Wed, Jul 28, 2021 at 02:56:48PM +0800, Hou Tao wrote: > Hi, > > Thanks for your review. > > Now I am not sure whether or not it is a better idea that doing synchronous or asynchronous del_gendisk() > > according to NBD_CFLAG_DESTROY_ON_DISCONNECT, and will wait for some feedback from Josef. The other option would be to add a variant of del_gendisk that does expect the open_mutex to be held over the whole operation. But I'd be happy if we could avoid that.
