Re: [PATCH v5] io_uring: add a sysctl to disable io_uring system-wide

[Matteo Rizzo]

Hi all,

Is there still anything that needs to be changed in this patch? As far as
I can tell all the remaining feedback has been addressed.

--
Matteo

On Mon, 21 Aug 2023 at 23:10, Jeff Moyer <jmoyer@xxxxxxxxxx> wrote:
>
> From: Matteo Rizzo <matteorizzo@xxxxxxxxxx>
>
> Introduce a new sysctl (io_uring_disabled) which can be either 0, 1, or
> 2. When 0 (the default), all processes are allowed to create io_uring
> instances, which is the current behavior.  When 1, io_uring creation is
> disabled (io_uring_setup() will fail with -EPERM) for unprivileged
> processes not in the kernel.io_uring_group group.  When 2, calls to
> io_uring_setup() fail with -EPERM regardless of privilege.
>
> Signed-off-by: Matteo Rizzo <matteorizzo@xxxxxxxxxx>
> [JEM: modified to add io_uring_group]
> Signed-off-by: Jeff Moyer <jmoyer@xxxxxxxxxx>