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Date:      Sat, 1 Sep 2007 16:09:42 +0400
From:      Yar Tikhiy <yar@comp.chem.msu.su>
To:        Gergely CZUCZY <phoemix@harmless.hu>
Cc:        Poul-Henning Kamp <phk@phk.freebsd.dk>, Dmitry Morozovsky <marck@rinet.ru>, fs@freebsd.org
Subject:   Re: New option for newfs(3) to make life with GEOM easier
Message-ID:  <20070901120941.GQ85633@comp.chem.msu.su>
In-Reply-To: <20070901093035.GA18069@harmless.hu>
References:  <20070901074803.GM85633@comp.chem.msu.su> <3842.1188634387@critter.freebsd.dk> <20070901092310.GO85633@comp.chem.msu.su> <20070901093035.GA18069@harmless.hu>

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On Sat, Sep 01, 2007 at 11:30:35AM +0200, Gergely CZUCZY wrote:
> On Sat, Sep 01, 2007 at 01:23:10PM +0400, Yar Tikhiy wrote:
> > On Sat, Sep 01, 2007 at 08:13:07AM +0000, Poul-Henning Kamp wrote:
> 
> > 
> > > 2.  Why not simply allow the -s argument to newfs to be negative so
> > >     "-s -200" means "reserve 200 sectors" ?
> > 
> > A negative argument to -s has been invalid till now, so we propose
> > a new option for people to express their intentions explicitly.
> > Personally, I don't mind the "-s -200" syntax, but many people
> > consider overloaded arguments unintuitive and error-prone.
>
> I think this "-s <negative>" syntax is just fine. As far as
> the manual will mention this, there's no problem with it.
> Introducing a new exclusive option could result in people
> trying to use both at the same time :)

FWIW, the code proposed is robust to specifying both options and
has the following semanics: attemt to create the file system in the
first S sectors but make sure that there are at least R spare sectors
left at the end.  It's documented in the manpage patch. :-)

-- 
Yar



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