linux-kernel - Re: [PATCH RFC 3/7] blk-mq: support to track active queues from blk_mq

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Message-ID: <3c79f013-7bab-d798-b251-b9e3dd620022@acm.org>
Date:   Thu, 6 Jul 2023 11:01:30 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Yu Kuai <yukuai1@...weicloud.com>, axboe@...nel.dk
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        yukuai3@...wei.com, yi.zhang@...wei.com, yangerkun@...wei.com
Subject: Re: [PATCH RFC 3/7] blk-mq: support to track active queues from
 blk_mq_tags

On 6/18/23 09:07, Yu Kuai wrote:
> @@ -737,6 +738,7 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
>   struct tag_sharing_ctl {
>   	unsigned int active_queues;
>   	unsigned int share_queues;
> +	struct list_head head;
>   };

Please add a comment that explains that 'head' is the head of a list with
tag_sharing.node entries.

> +struct tag_sharing {
> +	struct list_head node;
> +};

Data structure names typically are a noun. Above I see a name that ends with a
verb. Would "shared_tag_info" or "tag_sharing_info" perhaps be a better name?

Thanks,

Bart.