linux-kernel - Re: Credentials test patch

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Message-ID: <alpine.LFD.0.999.0709131431060.16478@woody.linux-foundation.org>
Date:	Thu, 13 Sep 2007 14:33:22 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	David Howells <dhowells@...hat.com>
cc:	viro@....linux.org.uk, hch@...radead.org,
	linux-kernel@...r.kernel.org
Subject: Re: Credentials test patch

On Thu, 13 Sep 2007, David Howells wrote:
> 
> > Why is it trying to make it look like a variable?
> 
> Like 'current' for instance?

"current" has solid *historical* reasons for being that way.

Namely: it actually *was* a variable. That worked fine for UP. It got 
changed much much later.

Also, even in modern times, "current" is optimized to hell and back, and 
is often as cheap (or cheaper than) a global variable, so there is also no 
subtle performance question.

So using "current" as an excuse is not really valid. AT ALL.

		Linus
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