On Mon, Jan 15, 2018 at 12:43:44PM -0500, Mike Snitzer wrote:
> On Mon, Jan 15 2018 at 11:58am -0500,
> Ming Lei wrote:
>
> > Hi Guys,
> >
> > The 3 paches changes the blk-mq part of blk_insert_cloned_request(),
> > in which we switch to blk_mq_try_issue_directly(), so that both dm-rq
> > and bl
On Mon, Jan 15 2018 at 11:58am -0500,
Ming Lei wrote:
> Hi Guys,
>
> The 3 paches changes the blk-mq part of blk_insert_cloned_request(),
> in which we switch to blk_mq_try_issue_directly(), so that both dm-rq
> and blk-mq can get the dispatch result of underlying queue, and with
> this informat
Hi Guys,
The 3 paches changes the blk-mq part of blk_insert_cloned_request(),
in which we switch to blk_mq_try_issue_directly(), so that both dm-rq
and blk-mq can get the dispatch result of underlying queue, and with
this information, blk-mq can handle IO merge much better, then
sequential I/O per
