Am 07.07.21 um 15:07 schrieb Jens Axboe: > 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. I also requested it for open :-) metze
