linux-kernel - Re: CONFIG_OPTIMIZE

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Message-ID: <20080427055943.GA16290@elte.hu>
Date:	Sun, 27 Apr 2008 07:59:43 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	David Miller <davem@...emloft.net>
Cc:	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, viro@...IV.linux.org.uk
Subject: Re: CONFIG_OPTIMIZE_INLINING


* David Miller <davem@...emloft.net> wrote:

> Ingo, why the heck is this hiding under arch/x86/ and not in 
> lib/Kconfig.debug where it belongs?
> 
>     x86: add optimized inlining
> 
> If there are platforms that can't handle it, we can add a conditional 
> to lib/Kconfig.debug, but by default it should be made available 
> generically.
>
> Where did this original patch get posted for review and discussion?
> 
> Tell me where!?!?!

here, two months ago:

  http://lkml.org/lkml/2008/3/3/122

i made it x86-only due to this FUD that went against it:

  "messing with a global #define in a way that the results on 24 
   architectures with 7 different releases of gcc would be 
   unpredictable."

... as i saw no reason why this feature, which i found rather useful, 
should be delayed another year or so. I'd be more than happy to promote 
this feature back to lib/Kconfig.debug, sparc64 interest would make that 
a strong argument.

and here is the pull request that i posted to lkml, with the full patch 
included as well:

  http://www.gossamer-threads.com/lists/linux/kernel/911104?page=last

> The only references I see is where Stephen Rothwell complained that it 
> broke the powerpc build, and then on the git commit list when Linus 
> sucked this crud in.

i think there must something wrong about your lkml feed.

	Ingo
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