From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Sat, 18 Oct 2014 12:56:53 +0100 Subject: [PATCH 03/12] arm/arm64: KVM: use __GFP_ZERO not memset() to get zeroed pages In-Reply-To: <1413633422-14907-1-git-send-email-marc.zyngier@arm.com> References: <1413633422-14907-1-git-send-email-marc.zyngier@arm.com> Message-ID: <1413633422-14907-4-git-send-email-marc.zyngier@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Ard Biesheuvel Pass __GFP_ZERO to __get_free_pages() instead of calling memset() explicitly. Acked-by: Marc Zyngier Signed-off-by: Ard Biesheuvel Signed-off-by: Christoffer Dall --- arch/arm/kvm/mmu.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c index eea0306..8f0c7a4 100644 --- a/arch/arm/kvm/mmu.c +++ b/arch/arm/kvm/mmu.c @@ -528,11 +528,10 @@ int kvm_alloc_stage2_pgd(struct kvm *kvm) return -EINVAL; } - pgd = (pgd_t *)__get_free_pages(GFP_KERNEL, S2_PGD_ORDER); + pgd = (pgd_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, S2_PGD_ORDER); if (!pgd) return -ENOMEM; - memset(pgd, 0, PTRS_PER_S2_PGD * sizeof(pgd_t)); kvm_clean_pgd(pgd); kvm->arch.pgd = pgd; -- 2.1.1