linux-kernel - Re: [PATCH 1/1] block, bfq: delete "bfq" prefix from cgroup filenames

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Message-Id: <5283A08F-FD6F-4A9C-841D-B49CE9B4CF1F@linaro.org>
Date:   Mon, 8 Apr 2019 17:14:42 +0200
From:   Paolo Valente <paolo.valente@...aro.org>
To:     Johannes Thumshirn <jthumshirn@...e.de>
Cc:     Jens Axboe <axboe@...nel.dk>,
        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>,
        Mark Brown <broonie@...nel.org>,
        'Paolo Valente' via bfq-iosched 
        <bfq-iosched@...glegroups.com>,
        Oleksandr Natalenko <oleksandr@...alenko.name>,
        Angelo Ruocco <angeloruocco90@...il.com>,
        lennart@...ttering.net, mkoutny@...e.cz
Subject: Re: [PATCH 1/1] block, bfq: delete "bfq" prefix from cgroup filenames



> Il giorno 8 apr 2019, alle ore 17:08, Johannes Thumshirn <jthumshirn@...e.de> ha scritto:
> 
> On Mon, Apr 08, 2019 at 09:05:19AM -0600, Jens Axboe wrote:
>> I did consider that, and that would be doable. But honestly, I'm having a
>> hard time seeing what issue we are attempting to fix by doing this.
> 
> Yeah, I guess the real fix would be to update the documentation and the
> expectations user-space has. Including eventual re-write of some udev rules or
> whatever is facing these files. But to me that sounds more like a systemd or
> even distro thing than a kernel thing.
> 

Unfortunately the user-space people I have interacted with find crazy
to have to change their software to call bfq.weight the weight of a
group.  And are not willing to do it [1].

Thanks,
Paolo

[1] https://github.com/systemd/systemd/issues/7057

> Byte,
> 	Johannes
> -- 
> Johannes Thumshirn                            SUSE Labs Filesystems
> jthumshirn@...e.de                                +49 911 74053 689
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