mirror of https://gitee.com/openkylin/linux.git
KVM: MMU: fix bogus alloc_mmu_pages assignment
Remove the bogus n_free_mmu_pages assignment from alloc_mmu_pages. It breaks accounting of mmu pages, since n_free_mmu_pages is modified but the real number of pages remains the same. Cc: stable@kernel.org Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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@ -2786,14 +2786,6 @@ static int alloc_mmu_pages(struct kvm_vcpu *vcpu)
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ASSERT(vcpu);
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spin_lock(&vcpu->kvm->mmu_lock);
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if (vcpu->kvm->arch.n_requested_mmu_pages)
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vcpu->kvm->arch.n_free_mmu_pages =
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vcpu->kvm->arch.n_requested_mmu_pages;
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else
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vcpu->kvm->arch.n_free_mmu_pages =
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vcpu->kvm->arch.n_alloc_mmu_pages;
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spin_unlock(&vcpu->kvm->mmu_lock);
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/*
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* When emulating 32-bit mode, cr3 is only 32 bits even on x86_64.
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* Therefore we need to allocate shadow page tables in the first
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