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Commit b90c062c authored by Marcelo Tosatti's avatar Marcelo Tosatti Committed by Avi Kivity
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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: default avatarMarcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 3b80fffe

arch/x86/kvm/mmu.c

+0 −8
Original line number Diff line number Diff line
@@ -2786,14 +2786,6 @@ static int alloc_mmu_pages(struct kvm_vcpu *vcpu) 


	ASSERT(vcpu);



	spin_lock(&vcpu->kvm->mmu_lock);

	if (vcpu->kvm->arch.n_requested_mmu_pages)

		vcpu->kvm->arch.n_free_mmu_pages =

					vcpu->kvm->arch.n_requested_mmu_pages;

	else

		vcpu->kvm->arch.n_free_mmu_pages =

					vcpu->kvm->arch.n_alloc_mmu_pages;

	spin_unlock(&vcpu->kvm->mmu_lock);

	/*

	 * When emulating 32-bit mode, cr3 is only 32 bits even on x86_64.

	 * Therefore we need to allocate shadow page tables in the first