linux-kernel - Re: [PATCH 2/9] x86: Add support for rd/wr fs/gs base

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Message-ID: <alpine.DEB.2.11.1603220934200.3978@nanos>
Date:	Tue, 22 Mar 2016 09:36:26 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Andi Kleen <andi@...stfloor.org>
cc:	Andy Lutomirski <luto@...capital.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	X86 ML <x86@...nel.org>, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 2/9] x86: Add support for rd/wr fs/gs base

On Mon, 21 Mar 2016, Andi Kleen wrote:
> On Mon, Mar 21, 2016 at 03:08:46PM -0700, Andy Lutomirski wrote:
> > On Mon, Mar 21, 2016 at 3:05 PM, Andi Kleen <andi@...stfloor.org> wrote:
> > >> Please add a patch before this one that renames gs to gsbase.  This is
> > >> unreadable as is.
> > >
> > > I investigated this now, and it's not straight forward because on 32bit
> > > ->gs is actually gsindex, not gsbase. So with a straight rename you
> > > would end up with index in base on 32bit, which would be confusing.
> > >
> > 
> > I would take this inconsistency as a reason why this needs to be fixed
> > before any further changes are made.
> 
> The patchkit doesn't change anything for 32bit, so any inconsistency
> in 32bit is completely orthogonal.
> 
> I don't see how adding a bazillion unrelated changes makes this
> patchkit any better.

The general rule is that we do necessary cleanups before we change or add new
functionality. That's nothing which can be negotiated. Period.

Thanks,

	tglx