Message-ID: <4D5C7418.4080307@zytor.com>
Date: Wed, 16 Feb 2011 17:04:24 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Ingo Molnar <mingo@elte.hu>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        David Miller <davem@davemloft.net>, simoneau@ele.uri.edu,
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Subject: Re: [PATCH 0/2] jump label: 2.6.38 updates
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On 02/16/2011 12:35 AM, Ingo Molnar wrote:
> 
> Just curious: how does this work if there's an interrupt (or NMI) right after the 
> invalidate instruction but before the 'll' instruction? The IRQ/NMI may refill the 
> L1. Or are the two instructions coupled by hw (they form a single instruction in 
> essence) and irqs/NMIs are inhibited inbetween?
> 

http://en.wikipedia.org/wiki/Load-link/store-conditional

	-hpa
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