Messages in this thread | | | Date | Mon, 14 Dec 2020 09:36:03 -0400 | From | Jason Gunthorpe <> | Subject | Re: [PATCH v3 5/6] mm/gup: migrate pinned pages out of movable zone |
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On Sat, Dec 12, 2020 at 08:29:11AM +0100, David Hildenbrand wrote:
> > Racing with another GUP in another thread is also not reasonable, so > > failing to isolate can't be a failure > > Having VMs with multiple vfio containers is certainly realistic, and > optimizing in user space to do vfio mappings concurrently doesn‘t > sound too crazy to me. But I haven‘t checked if vfio common code > already handles such concurrency.
There is a lot more out there than vfio.. RDMA already does concurrent pin_user_pages in real apps
Jason
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