Hello everyone,

lately I have been looking into the io_uring functionality in the
kernel and apps that I use -- what could be a non-generic USE flag
shared by mpd and qemu?

I have noticed that currently 9 packages[1] have an io-uring USE
flag. All of them use it for enabling the use of io_uring
system calls.

The feature was introduced in 5.1 and the oldest we ship is 5.10
so I think there will be no compatibility issues.

Introducing a new io-uring global USE flag would encourage users
to enable it globally and simplify the configuration.

The USE description that I propose is
"Enable the use of io_uring system calls for efficient async IO".
Of course if there is something more fitting it should be chosen,
I have no hard opinions here.

What do you think about it?

Kind regards
Filip Kobierski

[1]: https://packages.gentoo.org/useflags/io-uring