On Wed, May 28, 2025 at 02:08:45PM -0300, Jason Gunthorpe wrote: > @@ -740,11 +740,16 @@ static int iopt_unmap_iova_range(struct io_pagetable *iopt, unsigned long start, > up_write(&iopt->iova_rwsem); > up_read(&iopt->domains_rwsem); > > - iommufd_access_notify_unmap(iopt, area_first, length); > + rc = iommufd_access_notify_unmap(iopt, area_first, length); > + if (rc) > + goto out_unmapped; > + I found that we have to re-take those rwsems to unset a flag: rc = iommufd_access_notify_unmap(iopt, area_first, length); if (rc) { down_read(&iopt->domains_rwsem); down_write(&iopt->iova_rwsem); area->prevent_access = false; goto out_unlock_iova; } Will include this in the patch. Thanks Nicolin