On Thu, Aug 13, 2020 at 05:32:54PM +0200, Stefano Garzarella wrote: > This patch adds a new IORING_SETUP_R_DISABLED flag to start the > rings disabled, allowing the user to register restrictions, > buffers, files, before to start processing SQEs. > > When IORING_SETUP_R_DISABLED is set, SQE are not processed and > SQPOLL kthread is not started. > > The restrictions registration are allowed only when the rings > are disable to prevent concurrency issue while processing SQEs. > > The rings can be enabled using IORING_REGISTER_ENABLE_RINGS > opcode with io_uring_register(2). > > Suggested-by: Jens Axboe <axboe@xxxxxxxxx> > Signed-off-by: Stefano Garzarella <sgarzare@xxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> Where can I find the io_uring selftests? I'd expect an additional set of patches to implement the selftests for this new feature. -- Kees Cook
