Re: [PATCH BUGFIX IMPROVEMENT V2 0/1] block, bfq: eliminate latency regression with fast drives

[Paolo Valente]

> Il giorno 16 lug 2019, alle ore 16:11, Jens Axboe <axboe@xxxxxxxxx> ha scritto:
> 
> On 7/15/19 4:57 AM, Paolo Valente wrote:
>> [V2 that should apply cleanly on current HEAD]
>> 
>> Hi Jens,
>> I've spotted a regression on a fast SSD: a loss of I/O-latency control
>> with interactive tasks (such as the application start up I usually
>> test). Details in the commit.
>> 
>> I do hope that, after proper review, this commit makes it for 5.3.
> 
> If it's a regression, it should have a Fixes: line telling us which
> commit originally introduced the regression. This is important for
> folks doing backports.

Right, sorry.

> Can you add that?
> 

Added, together with an explanation of why the fixed commit fails.

Sending a V3.

Thanks,
Paolo

> -- 
> Jens Axboe
>