From mboxrd@z Thu Jan 1 00:00:00 1970 From: Xiao Guangrong Subject: [PATCH 3/3] KVM: MMU: remove unnecessary check Date: Fri, 07 Sep 2012 14:15:03 +0800 Message-ID: <504990E7.6040604@linux.vnet.ibm.com> References: <5049908A.7070501@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: Avi Kivity , Marcelo Tosatti , LKML , KVM To: Xiao Guangrong Return-path: In-Reply-To: <5049908A.7070501@linux.vnet.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org Checking the return of kvm_mmu_get_page is unnecessary since it is guaranteed by memory cache Signed-off-by: Xiao Guangrong --- arch/x86/kvm/mmu.c | 5 ----- 1 files changed, 0 insertions(+), 5 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 3c10bca..98cf4bf 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2625,11 +2625,6 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t v, int write, sp = kvm_mmu_get_page(vcpu, pseudo_gfn, iterator.addr, iterator.level - 1, 1, ACC_ALL, iterator.sptep); - if (!sp) { - pgprintk("nonpaging_map: ENOMEM\n"); - mmu_release_pfn_clean(pfn); - return -ENOMEM; - } mmu_spte_set(iterator.sptep, __pa(sp->spt) -- 1.7.7.6