linux-kernel - Re: [GIT PULL] scheduler fixes

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Message-ID: <alpine.LFD.2.01.0905180955550.3301@localhost.localdomain>
Date:	Mon, 18 May 2009 09:58:37 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
cc:	Jeff Garzik <jgarzik@...ox.com>,
	Alexander Viro <viro@....linux.org.uk>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [GIT PULL] scheduler fixes

On Mon, 18 May 2009, Ingo Molnar wrote:
> 
> hm - i've Cc:-ed Jeff & Viro. The background is that Sparse and LLVM 
> barfed on the current construct and Al strongly advocated this 
> solution, see:

I know the background.

Did you read my email?

Did you see my one-line patch that fixes the same problem WITHOUT THE 
INSANITY?

Yes, Al is mostly right. In this case he is wrong. (Ab-)Using unions for 
something like this is crazy, since the code doesn't want a union of 
overlapping data, it wants two consecutive data structures.

And I'm not saying that my one-liner is necessarily the only way to fix 
it. But it's a _better_ way than the crazy way you merged.

		Linus
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