Re: [PATCH v3 02/12] vfio/pci: Only check ownership of opened devices in hot reset

Eric Auger
2023-04-05T15:17:58Z

Hi Jason,

On 4/5/23 13:41, Jason Gunthorpe wrote:
> On Tue, Apr 04, 2023 at 05:59:01PM +0200, Eric Auger wrote:
>
>>> but the hot reset shall fail as the group is not owned by the user.
>> sure it shall but I fail to understand if the reset fails or the device
>> plug is somehow delayed until the reset completes.
> It is just racy today - vfio_pci_dev_set_resettable() doesn't hold any
> locks across the pci_walk_bus() check to prevent hot plug in while it is
> working on the reset.

OK thanks

Eric
>
> Jason
>