Re: [PATCH v2 1/1] Add a new sysctl to disable io_uring system-wide

[Matteo Rizzo]

On Thu, 29 Jun 2023 at 17:16, Bart Van Assche <bvanassche@xxxxxxx> wrote:
>
> On 6/29/23 06:27, Matteo Rizzo wrote:
> > +static int __read_mostly sysctl_io_uring_disabled;
>
> Shouldn't this be a static key instead of an int in order to minimize the
> performance impact on the io_uring_setup() system call? See also
> Documentation/staging/static-keys.rst.
>
> Thanks,
>
> Bart.

Is io_uring_setup in any hot path? io_uring_create is marked as __cold.

--
Matteo