Re: [PATCH RFC v2 4/4] block/mq-deadline: introduce min_async_depth

[Yu Kuai]

Hi,

在 2024/12/19 2:06, Bart Van Assche 写道:
> On 12/17/24 5:12 PM, Yu Kuai wrote:
> > dd->async_depth is initialized to 0 now, functionally I think
> > it's the same as q->nr_requests. And I do explain this in commit
> > message, maybe it's not clear?
>
> It would be good to add a comment in the source code that explains that
> __blk_mq_get_tag() does not restrict tag allocation if dd->async_depth
> is zero because that causes data->shallow_depth to be zero.

Ok.

Thanks,
Kuai

> Thanks,
>
> Bart.
> .