On 06/11/2020 10:44, Luis Gerhorst wrote: > Hello Pavel, > > I'm from a university and am searching for a project to work on in the > upcoming year. I am looking into allowing userspace to run multiple > system calls interleaved with application-specific logic using a single > context switch. > > I noticed that you, Jens Axboe, and Carter Li discussed the possibility > of integrating eBPF into io_uring earlier this year [1, 2, 3]. Is there > any WIP on this topic? To be honest, I've finally returned to it a week ago, just because got more free time. I was implicitly patching/refactoring some bits keeping this in mind but rather very lazily. > If not I am considering to implement this. Besides the fact that AOT > eBPF is only supported for priviledged processes, are there any issues > you are aware of or reasons why this was not implemented yet? All others I was anticipating are gone by now. I'd be really great to think something out for non-privileged processes, but as you know that doesn't hold us off. > [1] https://lore.kernel.org/io-uring/67b28e66-f2f8-99a1-dfd1-14f753d11f7a@xxxxxxxxx/ > [2] https://lore.kernel.org/io-uring/8b3f182c-7c4b-da41-7ec8-bb4f22429ed1@xxxxxxxxx/ > [3] https://github.com/axboe/liburing/issues/58 > -- Pavel Begunkov
