Re: [RFC][PATCH 3/6] mm: VMA sequence count

[Peter Zijlstra]

On Wed, Oct 22, 2014 at 02:15:54PM +0200, Peter Zijlstra wrote:
> On Wed, Oct 22, 2014 at 02:53:04PM +0300, Kirill A. Shutemov wrote:
> > Em, no. In this case change_protection() will not touch the pte, since
> > it's pte_none() and the pte_same() check will pass just fine.
> 
> Oh, that's what you meant. Yes that's a problem, yes vm_page_prot
> needs wrapping too.

Maybe also vm_policy, is there anything else that can change while a vma
lives?
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