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Subject: Re: [PATCH V2 00/10] unify the interface of the proportional-share
 policy in blkio/io
From:   Paolo Valente <paolo.valente@linaro.org>
In-Reply-To: <20190102160328.GR2509588@devbig004.ftw2.facebook.com>
Date:   Wed, 2 Jan 2019 17:28:05 +0100
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To:     Tejun Heo <tj@kernel.org>
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> Il giorno 2 gen 2019, alle ore 17:03, Tejun Heo <tj@kernel.org> ha scritto:
> 
> Hello, Paolo.
> 
> On Sun, Dec 30, 2018 at 11:25:25AM +0100, Paolo Valente wrote:
>> What's the benefit of throwing away months of work, on which we agreed
>> before starting it, and that solves a problem already acknowledged by
>> interested parties?
> 
> Showing multiple conflicting numbers definitely isn't anything which
> is agreed upon.
> 

Sorry, of course you din't realize that sharing interface files had
this consequence, otherwise you'd have protested beforehand.

The problem is that this consequence seems unavoidable: if two
policies have different numbers to convey, through a shared interface
file, then they must be allowed to write their different numbers.  To
me, this doesn't sound like a problem.

The only other natural option is no unification, unless you have a
third way.

What do you prefer, or propose?

Thanks,
Paolo

> Thanks.
> 
> -- 
> tejun