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Date: Fri, 25 Mar 2011 12:11:40 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Eric Dumazet <eric.dumazet@gmail.com>, Andi Kleen <andi@firstfloor.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
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        "x86@kernel.org" <x86@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
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        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH RFC] x86: avoid atomic operation in test_and_set_bit_lock
 if possible
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* Peter Zijlstra <a.p.zijlstra@chello.nl> wrote:

> On Fri, 2011-03-25 at 10:59 +0100, Ingo Molnar wrote:
> > 
> > Wanted to keep this patch simple - we are not really hitting MSR failure cases 
> > in practice, 
> 
> Everything qemu/kvm hits those.

and other virtualizers as well. I meant on real hardware with a real BIOS.

Thanks,

	Ingo
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