Re: [PATCH v4 05/11] iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit

[Dave Hansen]

On 2/7/22 15:02, Fenghua Yu wrote:
...
> Get rid of the refcounting mechanisms and replace/rename the interfaces
> to reflect this new approach.
...
>  .../iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c   |  5 +--
>  drivers/iommu/intel/iommu.c                   |  4 +-
>  drivers/iommu/intel/svm.c                     |  9 -----
>  drivers/iommu/ioasid.c                        | 39 ++-----------------
>  drivers/iommu/iommu-sva-lib.c                 | 39 ++++++-------------
>  drivers/iommu/iommu-sva-lib.h                 |  1 -
>  include/linux/ioasid.h                        | 12 +-----
>  include/linux/sched/mm.h                      | 16 ++++++++
>  kernel/fork.c                                 |  1 +
>  9 files changed, 38 insertions(+), 88 deletions(-)

Given the heavily non-x86 diffstat here, I was hoping to see some acks
from folks that this might affect, especially on the ARM side.

Is everyone OK with this?