On Tue, Jul 20, 2021 at 02:42:59PM -0300, Jason Gunthorpe wrote: > The user can open multiple device FDs if it likes, however the open > function calls vfio_register_notifier() on device global state. Calling > vfio_register_notifier() twice will trigger a WARN_ON from > notifier_chain_register() and the first close will wrongly delete the > notifier and more. > > Since these really want the new open/close_device() semantics just change > the function over. > > Reviewed-by: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx> > Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx> > Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>