Commit f8734352 authored Sep 22, 2011 by Xiao Guangrong Committed by Avi Kivity Dec 27, 2011

KVM: MMU: remove unnecessary kvm_mmu_free_some_pages



In kvm_mmu_pte_write, we do not need to alloc shadow page, so calling
kvm_mmu_free_some_pages is really unnecessary

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

parent f57f2ef5

arch/x86/kvm/mmu.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -3590,7 +3590,6 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
		*/
		mmu_topup_memory_caches(vcpu);
		spin_lock(&vcpu->kvm->mmu_lock);
		kvm_mmu_free_some_pages(vcpu);
		++vcpu->kvm->stat.mmu_pte_write;
		trace_kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE);
		if (gfn == vcpu->arch.last_pt_write_gfn