On Sun, Jul 29, 2012 at 04:13:41PM +0800, Xiao Guangrong wrote:
> Then, get_hwpoison_pfn and is_hwpoison_pfn can be removed
> 
> Signed-off-by: Xiao Guangrong <[email protected]>
> ---
>  arch/x86/kvm/mmu.c       |    2 +-
>  include/linux/kvm_host.h |    4 ++--
>  virt/kvm/kvm_main.c      |   13 +------------
>  3 files changed, 4 insertions(+), 15 deletions(-)
> 
> diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
> index 19bac91..320a781 100644
> --- a/arch/x86/kvm/mmu.c
> +++ b/arch/x86/kvm/mmu.c
> @@ -2651,7 +2651,7 @@ static void kvm_send_hwpoison_signal(unsigned long 
> address, struct task_struct *
>  static int kvm_handle_bad_page(struct kvm_vcpu *vcpu, gfn_t gfn, pfn_t pfn)
>  {
>       kvm_release_pfn_clean(pfn);
> -     if (is_hwpoison_pfn(pfn)) {
> +     if (pfn == kvm_hwpoison_pfn) {
>               kvm_send_hwpoison_signal(gfn_to_hva(vcpu->kvm, gfn), current);
>               return 0;
>       }
> diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
> index 7cd6871..4de56cd 100644
> --- a/include/linux/kvm_host.h
> +++ b/include/linux/kvm_host.h
> @@ -48,7 +48,8 @@
>  #define KVM_MAX_MMIO_FRAGMENTS \
>       (KVM_MMIO_SIZE / KVM_USER_MMIO_SIZE + KVM_EXTRA_MMIO_FRAGMENTS)
> 
> -#define kvm_fault_pfn        (-EFAULT)
> +#define kvm_fault_pfn                (-EFAULT)
> +#define kvm_hwpoison_pfn     (-EHWPOISON)

Same here as kvm_fault_pfn.

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