Re: [PATCH v2 1/3] blk-cgroup: check for pd_(alloc|free)_fn in blkcg_activate_policy()

[Christoph Hellwig]

On Fri, Jul 19, 2024 at 10:34:29AM +0800, Yu Kuai wrote:
> +	/*
> +	 * Make sure cpd/pd_alloc_fn and cpd/pd_free_fn in pairs, and policy
> +	 * without pd_alloc_fn/pd_free_fn can't be activated.
> +	 */
>  	if ((!pol->cpd_alloc_fn ^ !pol->cpd_free_fn) ||
>  		(!pol->pd_alloc_fn ^ !pol->pd_free_fn))
>  		goto err_unlock;
> -- 

I know this is existing code, but can you fix up the incorrect
indentation while you touch this:

 	if ((!pol->cpd_alloc_fn ^ !pol->cpd_free_fn) ||
 	    (!pol->pd_alloc_fn ^ !pol->pd_free_fn))

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>