Re: [RFC PATCH] mm/rmap: do not call mmu_notifier_invalidate_page() v3

Linus Torvalds writes: (Summary) On Tue, Aug 29, 2017 at 12:05 PM, J=C3=A9r=C3=B4me Glisse <jglisse@redhat.c= om> No no no.
Didn't you learn *anything* from the bug?
Didn't you learn *anything* from the bug?
You cannot replace "mmu_notifier_invalidate_page()" with "mmu_notifier_invalidate_range()".
"mmu_notifier_invalidate_range()".
KVM implements mmu_notifier_invalidate_page().
KVM implements mmu_notifier_invalidate_page().
IT DOES NOT IMPLEMENT THAT RANGE CRAP AT ALL.
IT DOES NOT IMPLEMENT THAT RANGE CRAP AT ALL.
So any approach like this is fundamentally garbage. Linus
Linus
Linus