Re: [PATCH v7 9/9] blk-throttle: clean up flag 'THROTL_TG_PENDING'

From: Tejun Heo
Date: Tue Aug 16 2022 - 16:14:17 EST


On Tue, Aug 02, 2022 at 10:04:15PM +0800, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@xxxxxxxxxx>
>
> All related operations are inside 'queue_lock', there is no need to use
> the flag, we only need to make sure throtl_enqueue_tg() is called when
> the first bio is throttled, and throtl_dequeue_tg() is called when the
> last throttled bio is dispatched. There are no functional changes in
> this patch.

I don't know whether this is better or not. It's minutely less lines of code
but also makes the code a bit more fragile. I'm ambivalent. At any rate,
please move these trivial patches to the head of the series or post them
separately.

Thanks.

--
tejun