Re: [PATCH v2 2/3] blk-ioprio: remove ioprio_blkcg_from_bio()

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To: Yu Kuai <yukuai1@xxxxxxxxxxxxxxx>, jack@xxxxxxx, hch@xxxxxxxxxxxxx, tj@xxxxxxxxxx, josef@xxxxxxxxxxxxxx, axboe@xxxxxxxxx
Subject: Re: [PATCH v2 2/3] blk-ioprio: remove ioprio_blkcg_from_bio()
From: Bart Van Assche <bvanassche@xxxxxxx>
Date: Fri, 19 Jul 2024 09:26:40 -0700
Cc: cgroups@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, yukuai3@xxxxxxxxxx, yi.zhang@xxxxxxxxxx, yangerkun@xxxxxxxxxx
In-reply-to: <20240719023431.3800647-3-yukuai1@huaweicloud.com>
References: <20240719023431.3800647-1-yukuai1@huaweicloud.com> <20240719023431.3800647-3-yukuai1@huaweicloud.com>
User-agent: Mozilla Thunderbird

On 7/18/24 7:34 PM, Yu Kuai wrote:

Currently, if config is enabled, then ioprio is always enabled by
default from blkcg_init_disk(), hence there is no point to check if
the policy is enabled from blkg in ioprio_blkcg_from_bio(). Hence remove
it and get blkcg directly from bio.


Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>

References:
- [PATCH v2 0/3] blk-ioprio: remove per-disk structure
  - From: Yu Kuai
- [PATCH v2 2/3] blk-ioprio: remove ioprio_blkcg_from_bio()
  - From: Yu Kuai

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