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arm/arm64: KVM: use __GFP_ZERO not memset() to get zeroed pages

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Pass __GFP_ZERO to __get_free_pages() instead of calling memset()
explicitly.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
This commit is contained in:
Ard Biesheuvel 2014-09-17 14:56:16 -07:00 committed by Christoffer Dall
parent b5e7a955a3
commit e9e8578b6c
1 changed files with 1 additions and 2 deletions
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arch/arm/kvm/mmu.c
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@ -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;