Re: [PATCHv8 4/6] io_uring: add support for kernel registered bvecs

Ming Lei
2025-02-28T08:14:02Z

On Thu, Feb 27, 2025 at 02:39:14PM -0800, Keith Busch wrote:
> From: Keith Busch <kbusch@kernel.org>
>
> Provide an interface for the kernel to leverage the existing
> pre-registered buffers that io_uring provides. User space can reference
> these later to achieve zero-copy IO.
>
> User space must register an empty fixed buffer table with io_uring in
> order for the kernel to make use of it.
>
> Signed-off-by: Keith Busch <kbusch@kernel.org>

Reviewed-by: Ming Lei <ming.lei@redhat.com>

Thanks,
Ming