Messages in this thread | | | Date | Thu, 28 Apr 2022 09:35:39 -0700 | Subject | Re: [PATCH v4 05/11] iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit | From | Dave Hansen <> |
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On 4/28/22 09:01, Jean-Philippe Brucker wrote: >> But, this misses an important point: even after the address space is >> gone, the PASID will still be programmed into a device. Device drivers >> might, for instance, still need to flush operations that are outstanding >> and need to use that PASID. They do this at ->release() time. > It's not really clear which release() this is. For us it's file descriptor > release() (not MMU notifier release(), which is how I initially understood > this sentence)
OK, maybe that should be: "file->release() time" to make it more clear.
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