Re: [PATCH v2 2/5] io_uring/rsrc: respect submitter_task in io_register_clone_buffers()

[Jens Axboe]

On 9/4/25 11:08 AM, Caleb Sander Mateos wrote:
> diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c
> index 2d15b8785a95..1e5b7833076a 100644
> --- a/io_uring/rsrc.c
> +++ b/io_uring/rsrc.c
> @@ -1298,14 +1298,21 @@ int io_register_clone_buffers(struct io_ring_ctx *ctx, void __user *arg)
>  
>  	src_ctx = file->private_data;
>  	if (src_ctx != ctx) {
>  		mutex_unlock(&ctx->uring_lock);
>  		lock_two_rings(ctx, src_ctx);
> +
> +		if (src_ctx->submitter_task && 
> +		    src_ctx->submitter_task != current) {
> +			ret = -EEXIST;
> +			goto out;
> +		}

Spurious end-of-line space detected here, pruned while merging.

-- 
Jens Axboe