linux-kernel - Re: [PATCH 3/4] x86_64 ia32 syscall audit fast-path

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Date:	Fri, 18 Jul 2008 13:36:15 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Roland McGrath <roland@...hat.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alexander Viro <aviro@...hat.com>,
	Eric Paris <eparis@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] x86_64 ia32 syscall audit fast-path


* Roland McGrath <roland@...hat.com> wrote:

> I don't know if there was some reason I did it that way rather than 
> the other.  I don't remember in which order I wrote and rewrote the 
> patches. I'll cop to laziness if you like.
> 
> It reminded me that I'd never tested the AMD (syscall/sysret) version 
> of this path.  That was clearly just plain lazy, and it was in fact 
> broken. It's a good thing you called me names and made me feel bad 
> about myself, so I cast about for more of my failings.
> 
> This version of the patch changes what you didn't like, and it works 
> right on both the AMD (syscall) and Intel (sysenter) paths.  (Yes, I 
> had already tested all the other paths.  This is the only one that is 
> not used on Intel hardware.)

do you have a delta patch against tip/x86/audit-speedup by any chance? 
That is a topic branch of your previous drop, which got tested as well 
to a certain degree. Would make it easier to see what changed, would 
make the merge have a more nuanced history, etc.

or, alternatively, if you have a -git based branch that i could pull, 
that would be nice as well. (i can compare old-x86/audit-speedup to 
new-x86/audit-speedup.)

	Ingo
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