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

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Message-ID: <314af89f-3c47-0c6e-a31d-17663d8f17fb@huaweicloud.com>
Date: Fri, 19 Jul 2024 15:14:04 +0800
From: Yu Kuai <yukuai1@...weicloud.com>
To: Christoph Hellwig <hch@...radead.org>, Yu Kuai <yukuai1@...weicloud.com>
Cc: bvanassche@....org, jack@...e.cz, tj@...nel.org, josef@...icpanda.com,
 axboe@...nel.dk, cgroups@...r.kernel.org, linux-block@...r.kernel.org,
 linux-kernel@...r.kernel.org, yi.zhang@...wei.com, yangerkun@...wei.com,
 "yukuai (C)" <yukuai3@...wei.com>
Subject: Re: [PATCH v2 1/3] blk-cgroup: check for pd_(alloc|free)_fn in
 blkcg_activate_policy()

Hi!

在 2024/07/19 13:29, Christoph Hellwig 写道:
> 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:

Yes, and thanks for the review.

Kuai

> 
>   	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@....de>
> 
> .
>