Re: [PATCH v7 5/9] blk-throttle: improve handling of re-entered bio for bps limit

From: Tejun Heo
Date: Tue Aug 16 2022 - 16:02:38 EST


On Tue, Aug 02, 2022 at 10:04:11PM +0800, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@xxxxxxxxxx>
>
> Currently, if new slice is started while bio is re-entered, such bio
> will count multiple times for bps limit. Since 'bytes_skipped'
> represents how many bytes will be skipped while dispatching bios, which
> can handle that case, increasing it instead of decreasing 'bytes_disp'.

The same thing. I think we're working around the problem in the wrong place.

Thanks.

--
tejun