Re: [patch]x86: avoid unnecessary tlb flush

From: H. Peter Anvin
Date: Fri Aug 13 2010 - 17:09:08 EST


On 08/13/2010 12:29 PM, Hugh Dickins wrote:
>
> Just added Andrea to the Cc list: he did that TLB flush in 1a44e149,
> I'd feel more comfortable noop-ing it on x86 if you've convinced him.
>
> Hugh

Andrea is probably on his way back from LinuxCon, but looking at the
original patch it might be something that non-x86 architectures need,
but which can be optimized specifically on x86, since x86 has explicit
"no flush needed when going to more permissive" semantics.

-hpa
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