linux-kernel - Re: [PATCH v2 1/5] blk-cgroup: add a new helper blkg_print_dev

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Message-ID: <33183043-335f-fd07-1068-c873656f51d6@huaweicloud.com>
Date: Thu, 31 Oct 2024 16:04:00 +0800
From: Yu Kuai <yukuai1@...weicloud.com>
To: Tejun Heo <tj@...nel.org>, Yu Kuai <yukuai1@...weicloud.com>
Cc: axboe@...nel.dk, josef@...icpanda.com, linux-block@...r.kernel.org,
 linux-kernel@...r.kernel.org, cgroups@...r.kernel.org, yi.zhang@...wei.com,
 yangerkun@...wei.com, "yukuai (C)" <yukuai3@...wei.com>
Subject: Re: [PATCH v2 1/5] blk-cgroup: add a new helper blkg_print_dev_name()

Hi, Tejun!

在 2024/10/01 1:11, Tejun Heo 写道:
> Hello,
> 
> On Mon, Sep 30, 2024 at 04:52:58PM +0800, Yu Kuai wrote:
>> +static inline bool blkg_print_dev_name(struct seq_file *sf,
>> +				       struct blkcg_gq *blkg)
>> +{
>> +	struct gendisk *disk = blkg->q->disk;
>> +
>> +	if (!disk)
>> +		return false;
>> +
>> +	seq_printf(sf, "%u:%u", disk->major, disk->first_minor);
>> +	return true;
>> +}
>> +
> 
> I wonder whether we just should add a name field to disk.

And suggestions on this set now? I guess add a name filed is not
appropriate. :(

Thanks,
Kuai

> 
> Thanks.
>