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
