Re: [PATCH V9 5/7] io_uring: support leased group buffer with REQ_F_GROUP_BUF

[Jens Axboe <axboe@kernel.dk>]

On 11/6/24 5:26 AM, Ming Lei wrote:
> @@ -670,6 +689,14 @@ struct io_kiocb {
>  		struct io_buffer_list	*buf_list;
>  
>  		struct io_rsrc_node	*buf_node;
> +
> +		/* valid IFF REQ_F_GROUP_BUF is set */
> +		union {
> +			/* store group buffer for group leader */
> +			const struct io_mapped_buf *grp_buf;
> +			/* for group member */
> +			bool	grp_buf_imported;
> +		};
>  	};

Just add a REQ_F flag for this.

> +/* For group member only */
> +static inline void io_req_mark_group_buf(struct io_kiocb *req, bool imported)
> +{
> +	req->grp_buf_imported = imported;
> +}
> +
> +/* For group member only */
> +static inline bool io_req_group_buf_imported(struct io_kiocb *req)
> +{
> +	return req->grp_buf_imported;
> +}

And kill these useless helpers, should just set or clear the above
mentioned REQ_F flag instead.

-- 
Jens Axboe