From: ard.biesheuvel@linaro.org (Ard Biesheuvel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/6] arm/arm64: KVM: use __GFP_ZERO not memset() to get zeroed pages
Date: Wed, 17 Sep 2014 14:56:16 -0700 [thread overview]
Message-ID: <1410990981-665-2-git-send-email-ard.biesheuvel@linaro.org> (raw)
In-Reply-To: <1410990981-665-1-git-send-email-ard.biesheuvel@linaro.org>
Pass __GFP_ZERO to __get_free_pages() instead of calling memset()
explicitly.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
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 c68ec28f17c3..152e0f896e63 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;
--
1.8.3.2
next prev parent reply other threads:[~2014-09-17 21:56 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-17 21:56 [PATCH 0/6] KVM: handling of MMIO pass-through regions Ard Biesheuvel
2014-09-17 21:56 ` Ard Biesheuvel [this message]
2014-09-29 13:02 ` [PATCH 1/6] arm/arm64: KVM: use __GFP_ZERO not memset() to get zeroed pages Christoffer Dall
2014-10-09 12:59 ` Marc Zyngier
2014-09-17 21:56 ` [PATCH 2/6] arm/arm64: KVM: fix potential NULL dereference in user_mem_abort() Ard Biesheuvel
2014-09-29 13:01 ` Christoffer Dall
2014-10-09 13:05 ` Marc Zyngier
2014-10-09 13:10 ` Ard Biesheuvel
2014-10-09 13:11 ` Christoffer Dall
2014-10-09 13:13 ` Marc Zyngier
2014-09-17 21:56 ` [PATCH 3/6] arm/arm64: KVM: add 'writable' parameter to kvm_phys_addr_ioremap Ard Biesheuvel
2014-09-25 0:03 ` Mario Smarduch
2014-09-29 12:23 ` Christoffer Dall
2014-09-29 18:02 ` Mario Smarduch
2014-09-29 18:26 ` Christoffer Dall
2014-09-29 12:59 ` Christoffer Dall
2014-10-09 13:07 ` Marc Zyngier
2014-10-09 13:11 ` Ard Biesheuvel
2014-10-09 13:46 ` Marc Zyngier
2014-09-17 21:56 ` [PATCH 4/6] ARM: kvm: define PAGE_S2_DEVICE as read-only by default Ard Biesheuvel
2014-09-29 13:05 ` Christoffer Dall
2014-10-09 13:10 ` Marc Zyngier
2014-09-17 21:56 ` [PATCH 5/6] arm64: " Ard Biesheuvel
2014-09-29 13:06 ` Christoffer Dall
2014-09-29 13:34 ` Will Deacon
2014-10-09 13:10 ` Marc Zyngier
2014-09-17 21:56 ` [PATCH 6/6] arm/arm64: KVM: map MMIO regions at creation time Ard Biesheuvel
2014-09-29 12:52 ` Christoffer Dall
2014-09-29 13:07 ` [PATCH 0/6] KVM: handling of MMIO pass-through regions Christoffer Dall
2014-10-01 5:36 ` Ard Biesheuvel
2014-10-10 11:08 ` Christoffer Dall
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