Re: [PATCH 15/16] vhost-vdpa: account iommu allocations

Michael S. Tsirkin
2023-12-25T16:10:19Z

On Tue, Nov 28, 2023 at 08:49:37PM +0000, Pasha Tatashin wrote:
> iommu allocations should be accounted in order to allow admins to
> monitor and limit the amount of iommu memory.
>
> Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>

Acked-by: Michael S. Tsirkin <mst@redhat.com>

> ---
> drivers/vhost/vdpa.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
> index da7ec77cdaff..a51c69c078d9 100644
> --- a/drivers/vhost/vdpa.c
> +++ b/drivers/vhost/vdpa.c
> @@ -968,7 +968,8 @@ static int vhost_vdpa_map(struct vhost_vdpa *v, struct vhost_iotlb *iotlb,
> r = ops->set_map(vdpa, asid, iotlb);
> } else {
> r = iommu_map(v->domain, iova, pa, size,
> - perm_to_iommu_flags(perm), GFP_KERNEL);
> + perm_to_iommu_flags(perm),
> + GFP_KERNEL_ACCOUNT);
> }
> if (r) {
> vhost_iotlb_del_range(iotlb, iova, iova + size - 1);
> --
> 2.43.0.rc2.451.g8631bc7472-goog