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[PATCH] KVM: Simplify mmu_alloc_roots()
Small optimization/cleanup: page == page_header(page->page_hpa) Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -820,9 +820,9 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
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hpa_t root = vcpu->mmu.root_hpa;
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ASSERT(!VALID_PAGE(root));
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root = kvm_mmu_get_page(vcpu, root_gfn, 0,
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PT64_ROOT_LEVEL, 0, NULL)->page_hpa;
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page = page_header(root);
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page = kvm_mmu_get_page(vcpu, root_gfn, 0,
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PT64_ROOT_LEVEL, 0, NULL);
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root = page->page_hpa;
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++page->root_count;
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vcpu->mmu.root_hpa = root;
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return;
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@ -836,10 +836,10 @@ static void mmu_alloc_roots(struct kvm_vcpu *vcpu)
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root_gfn = vcpu->pdptrs[i] >> PAGE_SHIFT;
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else if (vcpu->mmu.root_level == 0)
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root_gfn = 0;
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root = kvm_mmu_get_page(vcpu, root_gfn, i << 30,
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page = kvm_mmu_get_page(vcpu, root_gfn, i << 30,
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PT32_ROOT_LEVEL, !is_paging(vcpu),
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NULL)->page_hpa;
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page = page_header(root);
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NULL);
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root = page->page_hpa;
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++page->root_count;
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vcpu->mmu.pae_root[i] = root | PT_PRESENT_MASK;
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}
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