linux-kernel - Re: [PATCH -next v2 3/9] blk-iocost: don't allow to configure bio based device

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Message-ID: <Y4e5x37B2Mh+Bfko@slm.duckdns.org>
Date:   Wed, 30 Nov 2022 10:15:03 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Li Nan <linan122@...wei.com>
Cc:     josef@...icpanda.com, axboe@...nel.dk, cgroups@...r.kernel.org,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        yukuai3@...wei.com, yi.zhang@...wei.com
Subject: Re: [PATCH -next v2 3/9] blk-iocost: don't allow to configure bio
 based device

On Wed, Nov 30, 2022 at 09:21:50PM +0800, Li Nan wrote:
> From: Yu Kuai <yukuai3@...wei.com>
> 
> iocost is based on rq_qos, which can only work for request based device,
> thus it doesn't make sense to configure iocost for bio based device.
> 
> Signed-off-by: Yu Kuai <yukuai3@...wei.com>
> Reviewed-by: Christoph Hellwig <hch@....de>
> Signed-off-by: Li Nan <linan122@...wei.com>

Acked-by: Tejun Heo <tj@...nel.org>

Thanks.

-- 
tejun