Re: [PATCH] x86: fix ordering constraints on crX read/writes

[Jeremy Fitzhardinge]

On 07/15/2010 11:54 AM, H. Peter Anvin wrote:
> No, we haven't.  You're misunderstanding what a "memory" clobber does.
> A clobber affects the output side only, but doesn't inherently provide
> ordering on the input side.  Apparently this is implicit in "asm
> volatile", which is a very important property.

OK. It would be nice to get that confirmed.

    J

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