linux-kernel - Re: [PATCH BUGFIX V2 0/1] block, bfq: deschedule empty bfq

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Message-Id: <A2E68F00-EFEA-428E-A6C1-267E57450FF6@linaro.org>
Date:   Thu, 14 Nov 2019 16:14:13 +0100
From:   Paolo Valente <paolo.valente@...aro.org>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     linux-block <linux-block@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        bfq-iosched@...glegroups.com, oleksandr@...alenko.name,
        tschubert@...h.org, patdung100@...il.com, cevich@...hat.com
Subject: Re: [PATCH BUGFIX V2 0/1] block, bfq: deschedule empty bfq_queues not
 referred by any process



> Il giorno 14 nov 2019, alle ore 15:02, Jens Axboe <axboe@...nel.dk> ha scritto:
> 
> On 11/14/19 2:33 AM, Paolo Valente wrote:
>> Hi Jens,
>> change from V1: added check to correctly work only on bfq-queues
>> scheduled for service, and not on in-service bfq-queues (it makes no
>> sense, and it creates inconsistencies, to deschedule an in-service
>> bfq-queue).
>> 
>> Differently from V1, which was still under test when I submitted it,
>> this version has already been tested, by those who reported V1's
>> failures.
> 
> I'm a bit miffed that you'd send out a patch for an issue, this late
> in the cycle, and then it not being tested at all. That's not very
> confidence inspiring. I have applied this one, just letting you know
> that that is not acceptable at all.
> 

I'm sorry for irritating you.  Yet I don't fully get your point.  I
have sent this fix now, simply because this bug was found ten days
ago, and I've tried to fix it as soon as possible.  I did test my
patch before sending it.  As for public testing, how could Oleksandr
or any other user/dev have had a chance to test this patch if I had
not submitted it here?

Thanks,
Paolo

> -- 
> Jens Axboe
>