On Fri, Sep 18, 2026 at 05:19:53PM +0800, yu kuai wrote: > So I think we don't need to restore the reference, BTW, there is another > approach to > avoid such problem in blk-throttle I don't take for now: > > For bio entering blk-throttle, we can clear the new flag and blkg reference > directly > after the bio is throttled and before this bio is issuing to disk, because > bio will > not enter blk-throttle in the completion path. And since blk-throttle is the > only rq_qos > policy that can be enabled for bio-based disk, then dm_bio_record() will > never see a > bio with the new flag set.
That sounds much better, thanks!
