From: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Date: Thu, 22 Sep 2011 08:56:58 +0000 (+0800)
Subject: KVM: MMU: remove unnecessary kvm_mmu_free_some_pages
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f8734352c6f9c4f3d85f0c97b7731b7f925c62fd;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

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>
---

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index c01137f10c6b..7e57938bb86a 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -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