On Mon, Oct 07, 2024 at 10:25:01AM -0700, Nicolin Chen wrote: > This is for vdev/dev v.s. hwpt. We need the lock for viommu's > vdev xarray. > > Yet, giving a 2nd thought, I feel the lock would be useless if > a driver tries to refer the returned vdev (with this helper) > after the vdev object is destroyed.. > > We could only note something similar that caller must be aware > of the life cycle of vdev itself.. Yes, I imagined you'd use the xa_lock for this an it solves both problems at once. Jason
