IO_uring continues to prove itself to be one of the most exciting fundamental innovations to the Linux kernel of the past decade. While started for async storage I/O, it has seen recent work around networking use-cases and also driving other innovations like the new "UBD" driver for a IO_uring-based user-space block driver. It also continues to be relentlessly optimized by Jens Axboe and others for maximum performance potential. The latest innovation around IO_uring that was announced this week at Linux Plumbers Conference 2022 in Dublin is io_uring_spawn...