linux-kernel - Re: [PATCH 01/40] lib/string_helpers: Drop space in string_get

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Message-ID: <ZFAUj+Q+hP7cWs4w@moria.home.lan>
Date:   Mon, 1 May 2023 15:35:43 -0400
From:   Kent Overstreet <kent.overstreet@...ux.dev>
To:     Suren Baghdasaryan <surenb@...gle.com>, akpm@...ux-foundation.org,
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        Noralf Trï¿½nnes <noralf@...nnes.org>
Subject: Re: [PATCH 01/40] lib/string_helpers: Drop space in
 string_get_size's output

On Mon, May 01, 2023 at 11:13:15AM -0700, Davidlohr Bueso wrote:
> On Mon, 01 May 2023, Suren Baghdasaryan wrote:
> 
> > From: Kent Overstreet <kent.overstreet@...ux.dev>
> > 
> > Previously, string_get_size() outputted a space between the number and
> > the units, i.e.
> >  9.88 MiB
> > 
> > This changes it to
> >  9.88MiB
> > 
> > which allows it to be parsed correctly by the 'sort -h' command.
> 
> Wouldn't this break users that already parse it the current way?

It's not impossible - but it's not used in very many places and we
wouldn't be printing in human-readable units if it was meant to be
parsed - it's mainly used for debug output currently.

If someone raises a specific objection we'll do something different,
otherwise I think standardizing on what userspace tooling already parses
is a good idea.