Re: [PATCH v4 2/3] io_uring: Pass whole sqe to commands

[Ming Lei]

On Thu, May 04, 2023 at 05:18:55AM -0700, Breno Leitao wrote:
> Currently uring CMD operation relies on having large SQEs, but future
> operations might want to use normal SQE.
> 
> The io_uring_cmd currently only saves the payload (cmd) part of the SQE,
> but, for commands that use normal SQE size, it might be necessary to
> access the initial SQE fields outside of the payload/cmd block.  So,

Looks fine,

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

BTW, there might be risk[1] when accessing SQE fields which were read by
io_uring core code, and I'd suggest to document it in future.

[1] https://lore.kernel.org/io-uring/ZDlcXd4K+a2iGbnv@xxxxxxxxxxxxxxxxxxxxxxxxx/

Thanks,
Ming