From: Wang Jianchao <jianchao.wan9@gmail.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>, Josef Bacik <jbacik@fb.com>,
Tejun Heo <tj@kernel.org>, Bart Van Assche <bvanassche@acm.org>,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC V4 2/6] blk-wbt: make wbt pluggable
Date: Fri, 18 Feb 2022 11:41:11 +0800 [thread overview]
Message-ID: <6e6df16c-3609-71ef-c147-435920e59e8c@gmail.com> (raw)
In-Reply-To: <Yg4MQSUZZu9D+qJu@infradead.org>
On 2022/2/17 4:50 下午, Christoph Hellwig wrote:
>> +struct rq_qos *wbt_rq_qos(struct request_queue *q);
>> int wbt_init(struct request_queue *);
>
>
> Please move the wb_lat sysfs attribute into blk-wbt.c as well, which
> removes the need to expose these two functions.
>
Given this patchset:
(1) Do we need to reserve the wb_lat sysfs when we turn off the wbt ?
(2) Do we need to disable wbt automatically when switch io scheduler
to bfq ? Or just tell the user turn off the wbt by themselves ?
Thanks
Jianchao
next prev parent reply other threads:[~2022-02-18 3:41 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-17 3:13 [RFC V4 0/6] blk: make blk-rq-qos policies pluggable and modular Wang Jianchao (Kuaishou)
2022-02-17 3:13 ` [RFC V4 1/6] blk: prepare to make blk-rq-qos " Wang Jianchao (Kuaishou)
2022-02-17 8:48 ` Christoph Hellwig
2022-02-18 3:34 ` Wang Jianchao
2022-02-22 17:19 ` Tejun Heo
2022-02-23 3:08 ` Wang Jianchao
2022-02-23 3:10 ` Wang Jianchao
2022-02-23 21:37 ` Tejun Heo
2022-02-24 1:51 ` Wang Jianchao
2022-02-24 2:07 ` Tejun Heo
2022-02-24 2:50 ` Wang Jianchao
2022-02-24 16:53 ` Tejun Heo
2022-02-25 2:02 ` Wang Jianchao
2022-02-17 3:13 ` [RFC V4 2/6] blk-wbt: make wbt pluggable Wang Jianchao (Kuaishou)
2022-02-17 8:50 ` Christoph Hellwig
2022-02-18 3:41 ` Wang Jianchao [this message]
2022-02-22 8:12 ` Christoph Hellwig
2022-02-17 3:13 ` [RFC V4 3/6] blk-iolatency: make iolatency pluggable Wang Jianchao (Kuaishou)
2022-02-17 8:51 ` Christoph Hellwig
2022-02-18 3:42 ` Wang Jianchao
2022-02-17 3:13 ` [RFC V4 4/6] blk-iocost: make iocost pluggable Wang Jianchao (Kuaishou)
2022-02-17 8:52 ` Christoph Hellwig
2022-02-18 3:43 ` Wang Jianchao
2022-02-17 3:13 ` [RFC V4 5/6] blk-ioprio: make ioprio pluggable and modular Wang Jianchao (Kuaishou)
2022-02-17 8:54 ` Christoph Hellwig
2022-02-17 3:13 ` [RFC V4 6/6] blk: export the sysfs for switching qos Wang Jianchao (Kuaishou)
2022-02-17 8:55 ` Christoph Hellwig
2022-02-18 3:43 ` Wang Jianchao
2022-02-17 3:21 ` [RFC V4 0/6] blk: make blk-rq-qos policies pluggable and modular Jens Axboe
2022-02-17 3:53 ` Wang Jianchao
2022-02-17 8:43 ` Christoph Hellwig
2022-02-18 3:22 ` Wang Jianchao
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