Messages in this thread |  | | From | Logan Gunthorpe <> | Date | Thu, 1 Mar 2018 14:11:34 -0700 | Subject | Re: [PATCH v2 00/10] Copy Offload in NVMe Fabrics with P2P PCI Memory |
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On 01/03/18 02:03 PM, Benjamin Herrenschmidt wrote: > However, what happens if anything calls page_address() on them ? Some > DMA ops do that for example, or some devices might ...
Although we could probably work around it with some pain, we rely on page_address() and virt_to_phys(), etc to work on these pages. So on x86, yes, it makes it into the linear mapping.
Logan
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