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SubjectRe: [PATCH] KVM: explicitly set rmap_head->val to 0 in pte_list_desc_remove_entry()
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On 05/12/19 04:40, linmiaohe wrote:
> From: Miaohe Lin <linmiaohe@huawei.com>
>
> When we reach here, we have desc->sptes[j] = NULL with j = 0.
> So we can replace desc->sptes[0] with 0 to make it more clear.
> Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
> ---
> arch/x86/kvm/mmu/mmu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
> index 6f92b40d798c..a81c605abbba 100644
> --- a/arch/x86/kvm/mmu/mmu.c
> +++ b/arch/x86/kvm/mmu/mmu.c
> @@ -1410,7 +1410,7 @@ pte_list_desc_remove_entry(struct kvm_rmap_head *rmap_head,
> if (j != 0)
> return;
> if (!prev_desc && !desc->more)
> - rmap_head->val = (unsigned long)desc->sptes[0];
> + rmap_head->val = 0;
> else
> if (prev_desc)
> prev_desc->more = desc->more;
>

Queued, thanks.

Paolo

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