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KVM: x86/mmu: Remove is_obsolete() call

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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@linux.vnet.ibm.com

Cc: Xiao Guangrong <guangrong.xiao@gmail.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2019-02-05 13:01:25 -08:00 committed by Paolo Bonzini
parent 571c5af06e
commit 5ff0568374
1 changed files with 1 additions and 5 deletions
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6
arch/x86/kvm/mmu.c
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@ -2713,11 +2713,7 @@ static int kvm_mmu_prepare_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp,
} else { } else {
list_move(&sp->link, &kvm->arch.active_mmu_pages); list_move(&sp->link, &kvm->arch.active_mmu_pages);
/* if (!sp->role.invalid)
* 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))
kvm_reload_remote_mmus(kvm); kvm_reload_remote_mmus(kvm);
} }