Re: [PATCH] MD: make bio mergeable

[Jens Axboe]

On 04/25/2016 06:59 PM, Jens Axboe wrote:
> On 04/25/2016 05:52 PM, Shaohua Li wrote:
> > blk_queue_split marks bio unmergeable, which makes sense for normal bio.
> > But if dispatching the bio to underlayer disk, the blk_queue_split
> > checks are invalid, hence it's possible the bio becomes mergeable.
> >
> > In the reported bug, this bug causes trim against raid0 performance slash
> > https://bugzilla.kernel.org/show_bug.cgi?id=117051
>
> Good catch! Will apply for this series, thanks Shaohua.

Actually, let's let that go through the md tree instead. But you can add 
my Reviewed-by, and it'd be nice to get this into 4.6.

--
Jens Axboe