linux-kernel - Re: [PATCH v3 4/4] KVM: Add flush_on

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Message-ID: <20171110100720.hxqs44yjlrdbrip6@hirez.programming.kicks-ass.net>
Date:   Fri, 10 Nov 2017 11:07:20 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Wanpeng Li <kernellwp@...il.com>
Cc:     linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Kr??m???? <rkrcmar@...hat.com>,
        Wanpeng Li <wanpeng.li@...mail.com>
Subject: Re: [PATCH v3 4/4] KVM: Add flush_on_enter before guest enter

On Fri, Nov 10, 2017 at 01:49:47AM -0800, Wanpeng Li wrote:
> @@ -2116,7 +2122,13 @@ static void record_steal_time(struct kvm_vcpu *vcpu)
>  		&vcpu->arch.st.steal, sizeof(struct kvm_steal_time))))
>  		return;
>  
> +	if (xchg(&vcpu->arch.st.steal.preempted, KVM_VCPU_NOT_PREEMPTED) ==
> +			(KVM_VCPU_SHOULD_FLUSH | KVM_VCPU_PREEMPTED))
> +		/*
> +		 * Do TLB_FLUSH before entering the guest, its passed
> +		 * the stage of request checking
> +		 */
> +		kvm_vcpu_flush_tlb(vcpu, false);
>  

Please add { } there.