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Re: [PATCH] KVM: Remove redundant smp_mb() in the kvm_mmu_commit_zap_page()

From Xiao Guangrong <guangrong.xiao@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH] KVM: Remove redundant smp_mb() in the kvm_mmu_commit_zap_page()
Date 2016-03-10 16:50 +0100
Message-ID <rbb0B-AW-3@gated-at.bofh.it> (permalink)
References (4 earlier) <ralEK-6YM-1@gated-at.bofh.it> <rarKb-2CK-27@gated-at.bofh.it> <rba4y-8hd-11@gated-at.bofh.it> <rbaHg-q8-21@gated-at.bofh.it> <rbaQX-vD-39@gated-at.bofh.it>
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On 03/10/2016 11:31 PM, Paolo Bonzini wrote:
>
>
> On 10/03/2016 16:26, Paolo Bonzini wrote:
>> Compared to smp_load_acquire(), smp_mb() adds an ordering between stores
>> and loads.
>
> Here, the ordering is load-store, hence...

Yes, this is why i put smp_mb() in the code. :)

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Re: [PATCH] KVM: Remove redundant smp_mb() in the kvm_mmu_commit_zap_page() Lan Tianyu <tianyu.lan@intel.com> - 2016-03-08 10:00 +0100
  Re: [PATCH] KVM: Remove redundant smp_mb() in the  kvm_mmu_commit_zap_page() Paolo Bonzini <pbonzini@redhat.com> - 2016-03-08 16:30 +0100
    Re: [PATCH] KVM: Remove redundant smp_mb() in the kvm_mmu_commit_zap_page() Lan Tianyu <tianyu.lan@intel.com> - 2016-03-09 08:40 +0100
      Re: [PATCH] KVM: Remove redundant smp_mb() in the  kvm_mmu_commit_zap_page() Paolo Bonzini <pbonzini@redhat.com> - 2016-03-10 18:10 +0100
        Re: [PATCH] KVM: Remove redundant smp_mb() in the  kvm_mmu_commit_zap_page() Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2016-03-10 19:20 +0100
    Re: [PATCH] KVM: Remove redundant smp_mb() in the  kvm_mmu_commit_zap_page() Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2016-03-10 15:50 +0100
      Re: [PATCH] KVM: Remove redundant smp_mb() in the  kvm_mmu_commit_zap_page() Paolo Bonzini <pbonzini@redhat.com> - 2016-03-10 16:30 +0100
        Re: [PATCH] KVM: Remove redundant smp_mb() in the  kvm_mmu_commit_zap_page() Paolo Bonzini <pbonzini@redhat.com> - 2016-03-10 16:40 +0100
          Re: [PATCH] KVM: Remove redundant smp_mb() in the  kvm_mmu_commit_zap_page() Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2016-03-10 16:50 +0100
            Re: [PATCH] KVM: Remove redundant smp_mb() in the  kvm_mmu_commit_zap_page() Paolo Bonzini <pbonzini@redhat.com> - 2016-03-10 17:10 +0100
              Re: [PATCH] KVM: Remove redundant smp_mb() in the  kvm_mmu_commit_zap_page() Xiao Guangrong <guangrong.xiao@linux.intel.com> - 2016-03-10 19:20 +0100
        Re: [PATCH] KVM: Remove redundant smp_mb() in the kvm_mmu_commit_zap_page() Lan Tianyu <tianyu.lan@intel.com> - 2016-03-11 02:40 +0100

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