On Tue, Mar 01, 2022 at 12:14:49PM -0500, James Bottomley wrote: > It looks fairly similar given the iouring syscalls are on an fd except > that the structure above hash to be defined and becomes an ABI. Since > they configfd uses typed key value pairs, i'd argue it's more generic > and introspectable. I'm not suggesting using io-uring cmd as a configuration alternative to configfd, I'm suggesting it can be an async *vehicle* for a bunch of configurations one might need to make in the kernel. If we want to reduce system call uses, we may want to allow something like configfd to accept a batch of configuration options as well, as a batcha, and a final commit to process them. Luis