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SubjectRe: [RFC V4 1/6] blk: prepare to make blk-rq-qos pluggable and modular
Hello,

On Thu, Feb 17, 2022 at 11:13:44AM +0800, Wang Jianchao (Kuaishou) wrote:
> (3) Add /sys/block/x/queue/qos
> We can use '+name' or "-name" to open or close the blk-rq-qos
> policy.

I don't understand why we're modularizing rq-qos in this non-standard way
instead of modprobing to enable a policy and rmmoding to disable. Why are we
building in qos names into the kernel and adding an extra module handling
interface?

Thanks.

--
tejun

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