Re: [PATCH RESEND 2/5] block: Remove redundant blk_mq_sched_allow_merge() validation

[Baolin Wang]

On Mon, Aug 17, 2020 at 08:22:24AM +0200, Christoph Hellwig wrote:
> On Mon, Aug 17, 2020 at 12:09:16PM +0800, Baolin Wang wrote:
> > Only software queue and kyber IO scheduler will call blk_mq_bio_list_merge()
> > to merge a bio, and kyber IO scheduler did not implement the ops->allow_merge().
> 
> Please line wrap your changelogs after 73 characters.

Sure.

> 
> > Thus we can remove the redundant blk_mq_sched_allow_merge() in
> > blk_mq_bio_list_merge() function.
> 
> This seems potentially dangerous, and I don't think it really buys
> us much.

OK. I can remove this in next version.