[PATCH 3/4] x86,asm: Re-work smp_store_mb()

Michael S. Tsirkin
Wed, 13 Jan 2016 16:25:21 -0000

On Wed, Jan 13, 2016 at 05:17:04PM +0100, Borislav Petkov
wrote:
> On Tue, Jan 12, 2016 at 03:24:05PM -0800, Linus Torvalds wrote:
> > But talking to the hw people about this is certainly a good idea
regardless.
>
> I'm not seeing it in this thread but I might've missed it too.
Anyway,
> I'm being reminded that the ADD will change rFLAGS while MFENCE
doesn't
> touch them.
>
> Do we care?

Which flag do you refer to, exactly?

> --
> Regards/Gruss,
>     Boris.
>
> ECO tip #101: Trim your mails when you reply.