Messages in this thread | | | Date | Wed, 22 Oct 2014 15:44:16 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC][PATCH 3/6] mm: VMA sequence count |
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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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