Messages in this thread |  | | Date | Thu, 10 Feb 2022 10:49:04 -0800 | From | Jacob Pan <> | Subject | Re: [PATCH v4 05/11] iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit |
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On Wed, 9 Feb 2022 19:16:14 -0800, Jacob Pan <jacob.jun.pan@linux.intel.com> wrote:
> Hi Fenghua, > > On Mon, 7 Feb 2022 15:02:48 -0800, Fenghua Yu <fenghua.yu@intel.com> > wrote: > > > @@ -1047,8 +1040,6 @@ struct iommu_sva *intel_svm_bind(struct device > > *dev, struct mm_struct *mm, void } > > > > sva = intel_svm_bind_mm(iommu, dev, mm, flags); > > - if (IS_ERR_OR_NULL(sva)) > > - intel_svm_free_pasid(mm); > If bind fails, the PASID has no IOMMU nor CPU context. It should be safe > to free here. > Actually, here we cannot tell if the bind is the first of the mm so I think this is fine.
Reviewed-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
> Thanks, > > Jacob
Thanks,
Jacob
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