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KVM: MMU: Fix memory leak on guest demand faults

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While backporting 72dc67a696, a gfn_to_page()
call was duplicated instead of moved (due to an unrelated patch not being
present in mainline).  This caused a page reference leak, resulting in a
fairly massive memory leak.

Fix by removing the extraneous gfn_to_page() call.

Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
Avi Kivity
2008-03-23 14:21:08 +02:00
parent 707a18a51d
commit e48bb497b9
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kvm/mmu.c
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@@ -1412,7 +1412,7 @@ static void mmu_guess_page_from_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
up_read(&current->mm->mmap_sem); up_read(&current->mm->mmap_sem);
vcpu->arch.update_pte.gfn = gfn; vcpu->arch.update_pte.gfn = gfn;
vcpu->arch.update_pte.page = gfn_to_page(vcpu->kvm, gfn); vcpu->arch.update_pte.page = page;
} }
void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,