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

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