alt Hacker Newsio_uring makes synchronous syscalls async simply by offloading them to a pool of kernel threads, just like people have done for decades in userspace.
io_uring makes synchronous syscalls async simply by offloading them to a pool of kernel threads, just like people have done for decades in userspace.
It's not the async part, it's the not invoking the function part - io_uring replaces syscalls with producer consumer ring buffers.