Re: [PATCH] iommu/amd: Convert from atomic_t to refcount_t on pasid_state->count

[Suthikulpanit, Suravee]

On 7/19/2021 3:32 AM, Xiyu Yang wrote:
> refcount_t type and corresponding API can protect refcounters from
> accidental underflow and overflow and further use-after-free situations.
>
> Signed-off-by: Xiyu Yang <xiyuyang19@xxxxxxxxxxxx>
> Signed-off-by: Xin Tan <tanxin.ctf@xxxxxxxxx>

Thanks,

Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>