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SubjectRe: Re: [PATCH RFC v2 0/6] blk-throttle: support enable and disable during runtime
On Wed, Apr 17, 2024 at 09:09:07AM +0800, Yu Kuai <yukuai1@huaweicloud.com> wrote:
> Yes, bfq already support that,

I've never noticed CONFIG_IOSCHED_BFQ is a tristate that explains (me) a
lot. Thanks!

> First of all, users can only load these policies when they need, and
> reduce kernel size; Then, when these policies is not loaded, IO fast
> path will be slightly shorter, and save some memory overhead for each
> disk.

..and there is no new complexity thanks to the above.

(I'm only catching up with subthread of patch 5/6.)
It seems the old complexity could be simplified by the way of lazy
inits. Intereseting...

Michal
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