On 2022/2/15 9:01 下午, Chaitanya Kulkarni wrote: > Wang Jianchao (Kuaishou), > > On 2/15/22 04:36, Wang Jianchao (Kuaishou) wrote: >> Hi Jens >> >> blk-rq-qos is a standalone framework out of io-sched and can be used to >> control or observe the IO progress in block-layer with hooks. blk-rq-qos >> is a great design but right now, it is totally fixed and built-in and shut >> out peoples who want to use it with external module. >> >> This patchset attempts to make blk-rq-qos framework pluggable and modular. >> Then we can update the blk-rq-qos policy module w/o stopping the IO workload. >> And it is more convenient to introduce new policy on old machines w/o udgrade >> kernel. And we can close all of the blk-rq-qos policy if we needn't any of >> them. At the moment, the request_queue.rqos list is empty, we needn't to >> waste cpu cyles on them. >> >> > > Please write tests in blktests [1] to cover the code that we are > changing in this commit. > > -ck > > [1] https://github.com/osandov/blktests > Yes, I will send out next Thanks Jianchao
