On Wed, Jul 07, 2021 at 07:07:52AM -0600, Jens Axboe wrote: > 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. Thanks for working on this, Pavel! Original thread at https://lore.kernel.org/io-uring/20200715004209.GA334456@localhost/T/ in case that helps.
