Unwinding usage of is_obsolete() is a step towards removing x86's fast
invalidate mechanism, i.e. this is one part of a revert all patches from
the series that introduced the mechanism[1].
This is a partial revert of commit 05988d728dcd ("KVM: MMU: reduce
KVM_REQ_MMU_RELOAD when root page is zapped").
[1] https://lkml.kernel.org/r/1369960590-14138-1-git-send-email-xiaoguangrong@xxxxxxxxxxxxxxxxxx
Cc: Xiao Guangrong <guangrong.xiao@xxxxxxxxx>
Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
---
arch/x86/kvm/mmu.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index df41193aba38..3d92c49003b0 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2704,11 +2704,7 @@ static int kvm_mmu_prepare_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp,
} else {
list_move(&sp->link, &kvm->arch.active_mmu_pages);
- /*
- * The obsolete pages can not be used on any vcpus.
- * See the comments in kvm_mmu_invalidate_zap_all_pages().
- */
- if (!sp->role.invalid && !is_obsolete_sp(kvm, sp))
+ if (!sp->role.invalid)
kvm_reload_remote_mmus(kvm);
}
--
2.19.2
