Re: [PATCH] x86-64: espfix for 64-bit mode *PROTOTYPE*

[Andrew Lutomirski]

On Mon, Apr 21, 2014 at 6:47 PM, H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> Race condition (although with x86 being globally ordered, it probably can't actually happen.) The bitmask is probably the way to go.

Does the race matter?  In the worst case you take the lock
unnecessarily.  But yes, the bitmask is easy.

--Andy
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