On 7/7/21 5:39 AM, Pavel Begunkov wrote: > Implement an old idea allowing open/accept io_uring requests to register > a newly created file as a io_uring's fixed file instead of placing it > into a task's file table. The switching is encoded in io_uring's SQEs > by setting sqe->buf_index/file_index, so restricted to 2^16-1. Don't > think we need more, but may be a good idea to scrap u32 somewhere > instead. > > From the net side only needs a function doing __sys_accept4_file() > but not installing fd, see 2/4. > > Only RFC for now, the new functionality is tested only for open yet. > I hope we can remember the author of the idea to add attribution. Pretty sure the original suggester of this as Josh, CC'ed. -- Jens Axboe
