Re: [PATCH V5 15/17] block: track request size in blk_issue_stat

From: Tejun Heo
Date: Mon Jan 09 2017 - 16:17:42 EST


On Thu, Dec 15, 2016 at 12:33:06PM -0800, Shaohua Li wrote:
> Currently there is no way to know the request size when the request is
> finished. Next patch will need this info, so add to blk_issue_stat. With
> this, we will have 49bits to track time, which still is very long time.

Not necessarily an objection but do we really need to overload the
size field? Would a normal extra field hurt too much?

Thanks.

--
tejun